1. A consumable chip is characterized by comprising a consumable container installation detection circuit, a voltage detection end and a control circuit, wherein the consumable container installation detection circuit is connected between an installation detection part and the voltage detection end of imaging equipment so as to be matched with the installation detection part to carry out consumable container installation detection; when the signal sent to the installation detection part by the consumable container installation detection circuit meets the installation condition, a conductive path is formed between the installation current detection part and the voltage detection end, and the consumable container is successfully installed; otherwise, the consumable container fails to be installed; wherein, when the mounting detection section is a mounting current detection section, the mounting condition is that the detection current is greater than or equal to a threshold current; when the mounting detection section is a mounting voltage detection section, the mounting condition is that the detection voltage is lower than a threshold voltage; the consumable container installation detection circuit comprises a symmetrical sub-detection circuit formed by a first uncontrolled active device and a controlled active device, and another symmetrical sub-detection circuit formed by a second uncontrolled active device and the controlled active device, wherein when two ends of the consumable container installation detection circuit are positively or reversely connected between an installation detection part and a voltage detection end of imaging equipment, one of the symmetrical sub-detection circuits is conducted.

2. The consumable chip of claim 1, wherein the first uncontrolled active device and the second uncontrolled active device are connected in anti-parallel between the controlled active device and the mounting detection/voltage detection terminal; the controlled active device is also connected with a voltage detection end/installation detection part.

3. The consumable chip of claim 2, wherein when the first uncontrolled active device is a first diode and the second uncontrolled active device is a second diode, the anode of the first diode is connected to the cathode of the second diode, and the anode of the first diode and the cathode of the second diode are connected together and then subjected to the connection of the controlled active device to the voltage detection terminal/mounting detection portion; the cathode of the first diode is connected with the anode of the second diode, and the cathode of the first diode and the anode of the second diode are connected with the installation detection part/voltage detection end together.

4. The consumable chip of claim 2, wherein when the first uncontrolled active device is a first N-type transistor and the second uncontrolled active device is a second N-type transistor, the gate of the first N-type transistor is connected to the source of the first N-type transistor, and the source of the first N-type transistor is connected to the drain of the second N-type transistor, and then connected to the voltage detection terminal/mounting detection unit via the controlled active device; the grid electrode of the second N-type transistor is connected with the source electrode of the second N-type transistor, and the source electrode of the second N-type transistor and the drain electrode of the first N-type transistor are connected with a mounting detection part/voltage detection end; alternatively, the first and second electrodes may be,

when the first uncontrolled active device is a first P-type transistor and the second uncontrolled active device is a second P-type transistor, the grid electrode of the first P-type transistor is connected with the source electrode of the first P-type transistor, and after the source electrode of the first P-type transistor is commonly connected with the drain electrode of the second P-type transistor, the controlled active device is connected with the voltage detection end/the installation detection part; and the grid electrode of the second P-type transistor is connected with the source electrode of the second P-type transistor, and the source electrode of the second P-type transistor and the drain electrode of the first P-type transistor are commonly connected with an installation detection part/voltage detection end.

5. The consumable chip of claim 2, wherein when the first uncontrolled active device is a first transistor and the second uncontrolled active device is a second transistor, the emitter of the first transistor is connected to the collector of the second transistor, and then the controlled active device is connected to the voltage detection terminal/mounting detection unit; the emitter of the second triode and the collector of the first triode are connected with a mounting detection part/voltage detection end together; and the base electrode of the first triode and the base electrode of the second triode are respectively connected with a determined potential.

6. The consumable chip of claim 1, wherein the front end or the back end of the consumable container installation detection circuit is further connected in series with an uncontrolled active or passive device.

7. A consumable container, characterized in that a consumable chip according to any one of claims 1-6 is mounted.

8. A method for detecting the installation of a consumable container is characterized by comprising the following steps:

connecting the consumable container installation detection circuit between an installation detection part and a voltage detection end of the imaging equipment;

measuring the I-V characteristic of the installation detection circuit of the consumable container, and when the installation detection part detects that the installation condition is met, forming a conductive path between the installation detection part and the voltage detection end, so that the consumable container is successfully installed; otherwise, the consumable container fails to be installed;

when the mounting detection part is a mounting current detection part, the mounting condition is that the detection current is greater than or equal to a threshold current; when the mounting detection section is a mounting voltage detection section, the mounting condition is that the detection voltage is lower than a threshold voltage;

the consumable container installation detection circuit comprises a symmetrical sub-detection circuit formed by a first uncontrolled active device and a controlled active device, and another symmetrical sub-detection circuit formed by a second uncontrolled active device and the controlled active device, wherein when two ends of the consumable container installation detection circuit are positively or reversely connected between an installation detection part and a voltage detection end of imaging equipment, one of the symmetrical sub-detection circuits is conducted.

9. The method according to claim 8, wherein the first uncontrolled active device and the second uncontrolled active device are connected in anti-parallel between the controlled active device and a mounting detection/voltage detection terminal; the controlled active device is also connected with a voltage detection end/installation detection part.

10. The method of claim 8, further comprising: before the step of connecting the consumable container installation detection circuit between the installation detection part and the voltage detection end of the imaging equipment, an uncontrolled active device or a passive device is connected in series at the front end or the rear end of the consumable container installation detection circuit.

Background

At present, all install the consumptive material container that is used for the formation of image on imaging equipment, be equipped with the consumptive material chip of record consumptive material in service behavior on the consumptive material container. On an image forming apparatus such as an inkjet printer, a plurality of consumable containers (i.e., ink cartridges) for different color inks are required to be mounted; in an image forming apparatus, such as a laser printer, consumable containers (i.e., toner cartridges) for toner of different colors are required to be mounted. In order to be able to normally perform an image forming printing operation, it is necessary to detect whether the consumable container is successfully mounted to the image forming apparatus before printing.

The existing consumable container is installed by using a resistance element for detection. When N consumable containers (N is an integer of 2 or more) are mounted, the resistance elements of the respective consumable containers are connected in parallel to each other between the mounting detection power source and the mounting current value detection unit, as shown in fig. 1. The resistance elements of the N consumable containers are designed so that the current detected by the installed current value detecting part can uniquely identify 2 associated with the N consumable containers^NThe current value of the mounting state. The installation detection circuit determines the installation state of the consumable container based on the current detected by the installation current value detection part, as shown in FIG. 2, the detection current is minimum when no consumable container is installed, and the detection current is maximum when all the consumable containers are successfully installed, i.e., the detection current value and 2 consumable containers of N consumable containers^NThe mounting states correspond one to one. However, the method for determining the installation state of the consumable container is complex, and the installation state relationship of a plurality of consumable containers needs to be determined by contrasting the current value, so as to determine which consumable container or consumable containers have installation problems and which consumable container or consumable containers are successfully installed.

The utility model patent CN205523076U discloses a consumptive material box detection circuitry, and specifically disclose the circuit including the resistance array module that is used for providing resistance, be used for with consumptive material box and resistance connection's linking module and be used for detecting whether the consumptive material box installs the exact detection judgment module, wherein, the signal of telecommunication output that detects judgment module is connected with the resistance array module, and detect the signal of telecommunication input that judgment module is connected with linking module, perhaps the signal of telecommunication input that detects judgment module is connected with the resistance array module, and detect the signal of telecommunication output and linking module of judgment module and be connected. This detection circuitry has only solved and has adopted a detection circuitry to replace the problem that a plurality of detection circuitry detected a plurality of ink horn installation condition, but its essence still adopts resistance to detect the signal of telecommunication input end current condition, and then draws different consumptive material box mounted state according to the electric current value. That is, this detection circuit also has a problem that detection is complicated and detection instruction is not clear enough.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a consumable chip, a consumable container and a consumable container installation detection method which are simple in detection and clear in detection indication.

The invention is realized by the following technical scheme:

the invention provides a consumable chip, which comprises a consumable container installation detection circuit, a voltage detection end and a control circuit, wherein the consumable container installation detection circuit is used for being connected between an installation detection part and the voltage detection end of imaging equipment so as to be matched with the installation detection part to carry out consumable container installation detection; when the signal sent to the installation detection part by the consumable container installation detection circuit meets the installation condition, a conductive path is formed between the installation current detection part and the voltage detection end, and the consumable container is successfully installed; otherwise, the consumable container fails to be installed; wherein, when the mounting detection section is a mounting current detection section, the mounting condition is that the detection current is greater than or equal to a threshold current; when the mounting detection section is a mounting voltage detection section, the mounting condition is that the detection voltage is lower than a threshold voltage; the consumable container installation detection circuit comprises a symmetrical sub-detection circuit formed by a first uncontrolled active device and a controlled active device, and another symmetrical sub-detection circuit formed by a second uncontrolled active device and the controlled active device, wherein when two ends of the consumable container installation detection circuit are positively or reversely connected between an installation detection part and a voltage detection end of imaging equipment, one of the symmetrical sub-detection circuits is conducted.

The consumable container installation detection circuit can be integrated on the consumable chip and can also be used as an independent part for establishing a connection relation with the consumable chip. The consumable container with the consumable chip can be installed and detected one by one.

Preferably, the first uncontrolled active device and the second uncontrolled active device are connected in anti-parallel between the controlled active device and the mounting detection part/voltage detection terminal; the controlled active device is also connected with a voltage detection end/installation detection part.

Preferably, when the first uncontrolled active device is a first diode and the second uncontrolled active device is a second diode, the anode of the first diode is connected with the cathode of the second diode, and after the anode of the first diode and the cathode of the second diode are connected together, the first uncontrolled active device is connected with the voltage detection end/installation detection part; the cathode of the first diode is connected with the anode of the second diode, and the cathode of the first diode and the anode of the second diode are connected with the installation detection part/voltage detection end together.

Preferably, when the first uncontrolled active device is a first N-type transistor and the second uncontrolled active device is a second N-type transistor, the gate of the first N-type transistor is connected to the source of the first N-type transistor, and the controlled active device is connected to the voltage detection terminal/mounting detection unit after the source of the first N-type transistor and the drain of the second N-type transistor are connected in common; the grid electrode of the second N-type transistor is connected with the source electrode of the second N-type transistor, and the source electrode of the second N-type transistor and the drain electrode of the first N-type transistor are connected with a mounting detection part/voltage detection end; alternatively, the first and second electrodes may be,

when the first uncontrolled active device is a first P-type transistor and the second uncontrolled active device is a second P-type transistor, the grid electrode of the first P-type transistor is connected with the source electrode of the first P-type transistor, and after the source electrode of the first P-type transistor is commonly connected with the drain electrode of the second P-type transistor, the controlled active device is connected with the voltage detection end/the installation detection part; and the grid electrode of the second P-type transistor is connected with the source electrode of the second P-type transistor, and the source electrode of the second P-type transistor and the drain electrode of the first P-type transistor are commonly connected with an installation detection part/voltage detection end.

Preferably, when the first uncontrolled active device is a first triode and the second uncontrolled active device is a second triode, an emitter of the first triode is connected with a collector of the second triode together, and then the first uncontrolled active device is connected with the voltage detection end/installation detection part; the emitter of the second triode and the collector of the first triode are connected with a mounting detection part/voltage detection end together; and the base electrode of the first triode and the base electrode of the second triode are respectively connected with a determined potential.

Preferably, the front end or the rear end of the consumable container installation detection circuit is further connected with an uncontrolled active or passive device in series.

The invention also provides a consumable container which is provided with the consumable chip.

After the consumable container is installed to the imaging equipment, whether the consumable container is successfully installed on the imaging equipment is detected by utilizing a consumable container installation detection circuit on the consumable chip. When the consumable container installation detection circuit connected between the installation detection part and the voltage detection end of the imaging device forms a conductive path, the consumable container is successfully installed.

The invention also provides a consumable container installation detection method, which comprises the following steps:

connecting the consumable container installation detection circuit between an installation detection part and a voltage detection end of the imaging equipment;

measuring the I-V characteristic of the installation detection circuit of the consumable container, and when the installation detection part detects that the installation condition is met, forming a conductive path between the installation detection part and the voltage detection end, so that the consumable container is successfully installed; otherwise, the consumable container fails to be installed; when the mounting detection part is a mounting current detection part, the mounting condition is that the detection current is greater than or equal to a threshold current; when the mounting detection section is a mounting voltage detection section, the mounting condition is that the detection voltage is lower than a threshold voltage;

the consumable container installation detection circuit comprises a symmetrical sub-detection circuit formed by a first uncontrolled active device and a controlled active device, and another symmetrical sub-detection circuit formed by a second uncontrolled active device and the controlled active device, wherein when two ends of the consumable container installation detection circuit are positively or reversely connected between an installation detection part and a voltage detection end of imaging equipment, one of the symmetrical sub-detection circuits is conducted.

The method can quickly and simply detect whether the consumable container is successfully installed on the imaging equipment. When there are N consumptive material containers, as long as the consumptive material container installation detection circuitry that the consumptive material container was located fails to make and forms electrically conductive route between installation detection portion and the voltage detection end, just can definitely know which consumptive material container failed to install on imaging device.

Preferably, the first uncontrolled active device and the second uncontrolled active device are connected in anti-parallel between the controlled active device and a mounting detection part/voltage detection terminal; the controlled active device is also connected with a voltage detection end/installation detection part.

Preferably, the method further comprises: before the step of connecting the consumable container installation detection circuit between the installation detection part and the voltage detection end of the imaging equipment, an uncontrolled active device or a passive device is connected in series at the front end or the rear end of the consumable container installation detection circuit.

The invention has the following beneficial effects:

the invention provides a consumable chip, a consumable container and a consumable container installation detection method, which are simple in detection and clear in detection instruction, and determine whether the consumable container is successfully installed or not by detecting whether a conductive path is formed between an installation detection part and a voltage detection end or not.

Drawings

FIG. 1 is a schematic diagram of a prior art printed material cartridge installation detection circuit;

FIG. 2 is a schematic view showing the relationship between a detected current and a mounting state of a printing material cartridge by the method of FIG. 1;

FIG. 3 is a block diagram of the structure of a consumable container mounting detection circuit according to an embodiment of the present invention (including a controlled active device and a consumable container mounting detection circuit with a front end connected in series with an uncontrolled active device/passive device);

FIG. 4 is a block diagram of the structure of a consumable container mounting detection circuit in another embodiment of the consumable chip of the present invention (including a controlled active device, a passive device, and a consumable container mounting detection circuit with a front end connected in series with an uncontrolled active device/passive device);

FIG. 5 is a block diagram of the structure of a consumable container mounting detection circuit in another embodiment of the consumable chip of the present invention (including an uncontrolled active device and a consumable container mounting detection circuit with an uncontrolled active device/passive device connected in series at the front end thereof);

FIG. 6 is a block diagram of the structure of a consumable container mounting detection circuit in another embodiment of the consumable chip of the present invention (including an uncontrolled active device, a passive device, and a consumable container mounting detection circuit with its front end connected in series with the uncontrolled active device/passive device);

FIG. 7 is a block diagram of the structure of a consumable container mounting detection circuit in another embodiment of the consumable chip of the present invention (including a controlled active device, an uncontrolled active device, and a consumable container mounting detection circuit with its front end connected in series with the uncontrolled active device/passive device);

FIG. 8 is a detailed circuit diagram of the first embodiment according to FIG. 3;

FIG. 9 is an I-V characteristic of the circuit of FIG. 8;

FIG. 10 is a detailed circuit diagram according to the embodiment of FIG. 4;

FIG. 11 is a detailed circuit diagram of a second embodiment according to the embodiment of FIG. 3;

FIG. 12 is a detailed circuit diagram of the third embodiment according to FIG. 3;

FIG. 13 is a detailed circuit diagram according to the embodiment of FIG. 5;

FIG. 14 is a detailed circuit diagram according to the embodiment of FIG. 6;

FIG. 15 is a detailed circuit diagram of the first embodiment according to FIG. 7;

FIG. 16 is a detailed circuit diagram of a second embodiment according to the embodiment of FIG. 7;

FIG. 17a is a detailed circuit diagram (PMOS transistor) of the third embodiment according to FIG. 7;

FIG. 17b is a detailed circuit diagram (NMOS transistor) of the fourth embodiment according to FIG. 7.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

For solving the problem that whether the detection consumable container is well installed on the imaging equipment. The invention provides a consumable container installation detection circuit. The consumable container installation detection circuit is connected between an installation detection part (hereinafter referred to as an end A or an end B) and a voltage detection end (hereinafter referred to as an end B or an end A) of the imaging equipment, and is used for constructing a conductive path of the installation detection part and the voltage detection end of the imaging equipment. When the conductive path can be conducted, the consumable container is considered to be well mounted on the image forming apparatus. Whether the conductive path is conducted or not is determined by measuring I-V characteristics of the consumable container installation detection circuit, and whether the consumable container is successfully installed or not can be detected according to the I-V characteristics. Each consumable container installation detection circuit correspondingly detects the installation condition of one consumable container. For this purpose, the consumable container installation detection circuit is a circuit comprising a controlled active device and/or an uncontrolled active device, and the on/off is realized by utilizing the on-off characteristic of the device.

The controlled active device is a multi-terminal device, and changing the voltage of a certain end or a plurality of ends changes the switching characteristics of the device, such as MOS tube and triode BJT.

The uncontrolled active device is a device without a controlled end, such as a diode, or a device with a determined potential connected to the controlled end (i.e. a device fixed by the controlled end).

In one embodiment, the consumable container mounting detection circuit is a consumable container mounting detection circuit composed of controlled active devices. The consumable container installation detection circuit comprises two symmetrical sub-detection circuits, so that when two ends of the consumable container installation detection circuit are positively or reversely connected between the installation detection part and the voltage detection end of the imaging device, one of the symmetrical sub-detection circuits is conducted, and the AB conductive path can be communicated.

In a first embodiment, the consumable container mounting detection circuit (refer to fig. 8) includes a first N-type transistor M0, a second N-type transistor M1, a first P-type transistor M2, and a second P-type transistor M3. A source end of the first N-type transistor M0 is connected to a source end of the second N-type transistor M1, a gate end of the first N-type transistor M0 is connected to a drain end of the second N-type transistor M1 and commonly connected to an installation detection unit/voltage detection unit, and a drain end of the first N-type transistor M0 and a gate end of the second N-type transistor M1 are connected and commonly connected to a voltage detection unit/installation detection unit. A source end of the first P-type transistor M2 is connected to a source end of the second P-type transistor M3, a gate end of the first P-type transistor M2 is connected to a drain end of the second P-type transistor M3 and commonly connected to an installation detection part/voltage detection part, and a drain end of the first P-type transistor M2 and a gate end of the second P-type transistor M3 are connected and commonly connected to the voltage detection part/installation detection part. The substrate ends of the first N-type transistor M0, the second N-type transistor M1, the first P-type transistor M2 and the second P-type transistor M3 are all connected with the respective source ends. The first N-type transistor M0 and the second P-type transistor M3 form a symmetric sub-detection circuit, and the second N-type transistor M1 and the first P-type transistor M2 form a symmetric sub-detection circuit.

The controlled active device is not limited to the MOS tube, and other controlled active devices can be replaced by the controlled active device.

When the terminal a is a voltage detection terminal and the terminal B is a mounting detection part, the second N-type transistor M1 and the first P-type transistor M2 are turned on, and the first N-type transistor M0 and the second P-type transistor M3 are turned off. The current flows from the terminal a through the first P-type transistor M2, then through the second N-type transistor M1, and finally to the terminal B. When the terminal a is the mounting detection unit and the terminal B is the voltage detection terminal, the first N-type transistor M0 and the second P-type transistor M3 are turned on, and the second N-type transistor M1 and the first P-type transistor M2 are turned off. The current flows from the terminal B to the terminal A through the second P-type transistor M3, then through the first N-type transistor M0.

Fig. 9 shows the I-V characteristic of the circuit when the detection voltage pulse is generated, during boosting, when the voltage is lower than the threshold voltage of the N-type transistor, such as the threshold voltage of the first N-type transistor M0, the N-type transistor is still in the off-state, when there is no current in the circuit. When the voltage is higher than the threshold voltage of the N-type transistor, such as the threshold voltage of the first N-type transistor M0, the N-type transistor turns on, and a current is generated in the circuit.

On the basis of the above embodiment, the uncontrolled active device/passive device may also be connected in series at the front end (as shown in fig. 3) or the back end of the controlled active device. Fig. 8 shows a circuit diagram for connecting uncontrolled active devices/passive devices in series at the front end of a controlled active device. The uncontrolled active device is divided into MOS tube, triode and diode. The passive devices are divided into resistors, capacitors and inductors. One or more uncontrolled active/passive devices may be connected in series.

In addition, the a end may be fixed as a voltage detection end and the B end may be fixed as an installation detection portion, or the a end may be fixed as an installation detection portion and the B end may be fixed as a voltage detection end. In this case, it is necessary to install the detection circuit according to the corresponding terminal access consumable container. Then, at this moment, the consumable container installation detection circuit can be designed without including two symmetrical sub-circuits, and only one sub-circuit is left to realize the detection function.

In a second embodiment, the consumable container mounting detecting circuit (refer to fig. 12) includes a first N-type transistor M0, a second N-type transistor M1, a first P-type transistor M2, a second P-type transistor M3, and a transmission gate. A source end of the first N-type transistor M0 is connected to a source end of the second N-type transistor M1, a gate end of the first N-type transistor M0 is connected to a drain end of the second N-type transistor M1 and commonly connected to an installation detection unit/voltage detection unit, and a drain end of the first N-type transistor M0 and a gate end of the second N-type transistor M1 are connected and commonly connected to a voltage detection unit/installation detection unit. A source end of the first P-type transistor M2 is connected to a source end of the second P-type transistor M3, a gate end of the first P-type transistor M2 is connected to a drain end of the second P-type transistor M3 and commonly connected to an installation detection unit/voltage detection unit, and a drain end of the first P-type transistor M2 and a gate end of the second P-type transistor M3 are connected and commonly connected to a voltage detection/installation detection unit. A transmission gate is connected between the part between the source end of the first N-type transistor M0 and the source end of the second N-type transistor M1 and the part between the source end of the first P-type transistor M2 and the source end of the second P-type transistor M3. The transmission gate is composed of a third N-type transistor M4 and a third P-type transistor M5. A gate terminal of the third N-type transistor M4 is connected between a source terminal of the first P-type transistor M2 and a source terminal of the second P-type transistor M3, a source terminal of the third N-type transistor M4 is connected to an installation detection part/voltage detection part, a drain terminal of the third N-type transistor M4 is connected to the voltage detection part/installation detection part, and a substrate terminal of the third N-type transistor M4 is connected to a ground potential. The gate terminal of the third P-type transistor M5 is connected between the source terminal of the first N-type transistor M0 and the source terminal of the second N-type transistor M1, the source terminal of the third P-type transistor M5 is connected to the mounting detection part/voltage detection part, the drain terminal of the third P-type transistor M5 is connected to the voltage detection part/mounting detection part, and the substrate terminal of the third P-type transistor M5 is connected to the power supply potential. The first N-type transistor M0, the second P-type transistor M3, and the transmission gate form a symmetric sub-detection circuit, and the second N-type transistor M1, the first P-type transistor M2, and the transmission gate form a symmetric sub-detection circuit.

When the terminal a is the voltage detection terminal and the terminal B is the mounting detection portion, the second N-type transistor M1 is turned on, the first N-type transistor M0 is turned off, and the low voltage at the terminal B is transmitted to the gate terminal of the third P-type transistor M5 of the transmission gate through the second N-type transistor M1, so that the third P-type transistor M5 is turned on. Meanwhile, the first P-type transistor M2 is turned on, and the second P-type transistor M3 is turned off. The high voltage at the a terminal is transmitted to the gate terminal of the third N-type transistor M4 of the transmission gate through the first P-type transistor M2, turning on the third N-type transistor M4. The current in the circuit flows from the a terminal to the B terminal via the transmission gate formed by the third N-type transistor M4 and the third P-type transistor M5. Similarly, when the terminal a is the mounting detection unit and the terminal B is the voltage detection terminal, the current in the circuit flows from the terminal B to the terminal a through the transmission gate formed by the third N-type transistor M4 and the third P-type transistor M5.

The invention is not limited to accessing one transmission gate, and can access a plurality of transmission gates; and is not limited to accessing the transmission gate structure described above. The controlled active device is not limited to the MOS tube, and other controlled active devices can be replaced by the controlled active device.

On the basis of the above embodiment, the uncontrolled active device/passive device may also be connected in series at the front end (as shown in fig. 3) or the back end of the controlled active device. Fig. 12 shows a circuit diagram for connecting uncontrolled active devices/passive devices in series at the front end of a controlled active device. The uncontrolled active device is divided into MOS tube, triode and diode. The passive devices are divided into resistors, capacitors and inductors. One or more uncontrolled active/passive devices may be connected in series.

In addition, the a end may be fixed as a voltage detection end and the B end may be fixed as an installation detection portion, or the a end may be fixed as an installation detection portion and the B end may be fixed as a voltage detection end. In this case, it is necessary to install the detection circuit according to the corresponding terminal access consumable container. Then, at this moment, the consumable container installation detection circuit can be designed without including two symmetrical sub-circuits, and only one sub-circuit is left to realize the detection function.

In a third embodiment, the consumable container mounting detecting circuit (refer to fig. 11) includes a first N-type transistor M0, a second N-type transistor M1, and a first P-type transistor M2. A source end of the first N-type transistor M0 is connected to a source end of the second N-type transistor M1, a gate end of the first N-type transistor M0, a drain end of the second N-type transistor M1, and a drain end of the first P-type transistor M2 are connected to and commonly connected to an installation detection unit/voltage detection unit, and a drain end of the first N-type transistor M0, a gate end of the second N-type transistor M1, and a source end of the first P-type transistor M2 are connected to and commonly connected to and connected to a voltage detection unit/installation detection unit. A part between the source terminal of the first N-type transistor M0 and the source terminal of the second N-type transistor M1 is connected to the gate terminal of the first P-type transistor M2. The substrate ends of the first N-type transistor M0 and the second N-type transistor M1 are connected to the respective source ends. The substrate terminal of the first P-type transistor M2 is connected to a power supply potential. The first N-type transistor M0 and the first P-type transistor M2 form a symmetric sub-detection circuit, and the second N-type transistor M1 and the first P-type transistor M2 form a symmetric sub-detection circuit.

When the terminal a is the voltage detection terminal and the terminal B is the mounting detection portion, the second N-type transistor M1 is turned on and the first N-type transistor M0 is turned off. The low voltage at the terminal B is transmitted to the gate terminal of the first P-type transistor M2 through the second N-type transistor M1 to turn on the first P-type transistor M2, so that the current in the circuit flows from the terminal A to the terminal B through the first P-type transistor M2. When the terminal a is the mounting detection unit and the terminal B is the voltage detection terminal, the first N-type transistor M0 is turned on and the second N-type transistor M1 is turned off. The low voltage at the terminal a is transmitted to the gate terminal of the first P-type transistor M2 through the first N-type transistor M0 to turn on the first P-type transistor M2, and the current in the circuit flows from the terminal B to the terminal a through the first P-type transistor M2.

The controlled active device is not limited to the MOS tube, and other controlled active devices can be replaced by the controlled active device.

On the basis of the above embodiment, the uncontrolled active device/passive device may also be connected in series at the front end (as shown in fig. 3) or the back end of the controlled active device. Fig. 11 shows a circuit diagram for connecting uncontrolled active devices/passive devices in series at the front end of a controlled active device. The uncontrolled active device is divided into MOS tube, triode and diode. The passive devices are divided into resistors, capacitors and inductors. One or more uncontrolled active/passive devices may be connected in series. In addition, the first N-type transistor MO and the first N-type transistor are replaced with P-type transistors, and the first P-type transistor M2 is replaced with an N-type transistor, which can constitute a new circuit example and enable the installation inspection of the consumable container.

In addition, the a end may be fixed as a voltage detection end and the B end may be fixed as an installation detection portion, or the a end may be fixed as an installation detection portion and the B end may be fixed as a voltage detection end. In this case, it is necessary to install the detection circuit according to the corresponding terminal access consumable container. Then, at this moment, the consumable container installation detection circuit can be designed without including two symmetrical sub-circuits, and only one sub-circuit is left to realize the detection function.

In another embodiment, the consumable container mounting detection circuit (refer to fig. 4) is a consumable container mounting detection circuit composed of controlled active devices and passive devices. The consumable container installation detection circuit comprises two symmetrical sub-detection circuits, so that when two ends of the consumable container installation detection circuit are positively or reversely connected between the installation detection part and the voltage detection end of the imaging device, one of the symmetrical sub-detection circuits is conducted, and the AB conductive path can be communicated.

Specifically, the consumable container mounting detection circuit includes (referring to fig. 10) a first N-type transistor M0, a second N-type transistor M1, a first P-type transistor M2, a second P-type transistor M3, and a passive device R1. A source end of the first N-type transistor M0 is connected to a source end of the second N-type transistor, a gate end of the first N-type transistor M0 is connected to a drain end of the second N-type transistor M1 and commonly connected to an installation detection unit/voltage detection unit, and a drain end of the first N-type transistor M0 is connected to a gate end of the second N-type transistor M1 and commonly connected to a voltage detection unit/installation detection unit. A source end of the first P-type transistor M2 is connected to a source end of the second P-type transistor M3, a gate end of the first P-type transistor M2 is connected to a drain end of the second P-type transistor M3 and commonly connected to an installation detection part/voltage detection part, and a drain end of the first P-type transistor M2 and a gate end of the second P-type transistor M3 are connected and commonly connected to the voltage detection part/installation detection part. A passive device R1 is connected between a part between the source end of the first N-type transistor M0 and the source end of the second N-type transistor M1 and a part between the source end of the first P-type transistor M2 and the source end of the second P-type transistor M3. The substrate ends of the first N-type transistor M0, the second N-type transistor M1, the first P-type transistor M2 and the second P-type transistor M3 are all connected with the respective source ends. The first N-type transistor M0, the second P-type transistor M3 and the resistor R1 form a symmetrical sub-detection circuit, and the second N-type transistor M1, the first P-type transistor M2 and the resistor R1 form a symmetrical sub-detection circuit

When the terminal a is a voltage detection terminal and the terminal B is a mounting detection part, the second N-type transistor M1 and the first P-type transistor M2 are turned on, and the first N-type transistor M0 and the second P-type transistor M3 are turned off. The current flows from the terminal a to the terminal B through the first P-type transistor M2, the resistor R1, the second N-type transistor M1, and the like. When the terminal a is the mounting detection unit and the terminal B is the voltage detection terminal, the first N-type transistor M0 and the second P-type transistor M3 are turned on, and the second N-type transistor M1 and the first P-type transistor M2 are turned off. The current flows from the terminal B to the terminal A through the second P-type transistor M3, the resistor R1, the first N-type transistor M0 and finally.

The invention is not limited to accessing one passive device, and can access a plurality of passive devices; besides, the resistor is not limited to be connected, and other passive devices such as a capacitor and an inductor can be connected, wherein various passive devices can be combined.

The controlled active device is not limited to the MOS tube, and other controlled active devices can be replaced by the controlled active device.

Fig. 9 shows the I-V characteristic of the circuit when the detection voltage pulse is generated, during boosting, when the voltage is lower than the threshold voltage of the N-type transistor, such as the threshold voltage of the first N-type transistor M0, the N-type transistor is still in the off-state, when there is no current in the circuit. When the voltage is higher than the threshold voltage of the N-type transistor, such as the threshold voltage of the first N-type transistor M0, the N-type transistor turns on, and a current is generated in the circuit.

On the basis of the above embodiment, the uncontrolled active device/passive device may also be connected in series at the front end (as shown in fig. 4) or the back end of the controlled active device. Fig. 10 shows a circuit diagram for series connection of uncontrolled active devices/passive devices in front of the controlled active devices plus passive devices. The uncontrolled active device is divided into MOS tube, triode and diode. The passive devices are divided into resistors, capacitors and inductors. One or more uncontrolled active/passive devices may be connected in series.

In addition, the a end may be fixed as a voltage detection end and the B end may be fixed as an installation detection portion, or the a end may be fixed as an installation detection portion and the B end may be fixed as a voltage detection end. In this case, it is necessary to install the detection circuit according to the corresponding terminal access consumable container. Then, at this moment, the consumable container installation detection circuit can be designed without including two symmetrical sub-circuits, and only one sub-circuit is left to realize the detection function.

In another embodiment, the consumable container mounting detection circuit (refer to fig. 7) is a consumable container mounting detection circuit composed of a controlled active device and an uncontrolled active device. The consumable container installation detection circuit comprises two symmetrical sub-detection circuits, so that when two ends of the consumable container installation detection circuit are positively or reversely connected between the installation detection part and the voltage detection end of the imaging device, one of the symmetrical sub-detection circuits is conducted, and the AB conductive path can be communicated.

In a first embodiment, the consumable container mounting detection circuit includes (see fig. 15) a first N-type transistor M0, a second N-type transistor M1, a first P-type transistor M2, a second P-type transistor M3, and a first diode D1. A source end of the first N-type transistor M0 is connected to a source end of the second N-type transistor M1, a gate end of the first N-type transistor M0 is connected to a drain end of the second N-type transistor M1 and commonly connected to an installation detection unit/voltage detection unit, and a drain end of the first N-type transistor M0 and a gate end of the second N-type transistor M3 are connected and commonly connected to a voltage detection unit/installation detection unit. A source end of the first P-type transistor M2 is connected to a source end of the second P-type transistor M3, a gate end of the first P-type transistor M2 is connected to a drain end of the second P-type transistor M3 and commonly connected to an installation detection part/voltage detection part, and a drain end of the first P-type transistor M2 and a gate end of the second P-type transistor M3 are connected and commonly connected to the voltage detection part/installation detection part. A part between a source end of the first N-type transistor M0 and a source end of the second N-type transistor M1, and a part between a source end of the first P-type transistor M2 and a source end of the second P-type transistor M3, a first diode D1 is connected between the two parts, an anode of the first diode D1 is connected to a source end of the first P-type transistor M2 and a source end of the second P-type transistor M3, and a cathode of the first diode D1 is connected to a source end of the first N-type transistor M0 and a source end of the second N-type transistor M1. The substrate ends of the first N-type transistor M0, the second N-type transistor M1, the first P-type transistor M2 and the second P-type transistor M3 are all connected with the respective source ends. The first N-type transistor M0, the second P-type transistor M3 and the first diode D1 form a symmetric sub detection circuit, and the second N-type transistor M1, the first P-type transistor M2 and the first diode D1 form a symmetric sub detection circuit.

When the terminal a is the voltage detection terminal and the terminal B is the mounting detection portion, the second N-type transistor M1, the first P-type transistor M2, and the first diode D1 are turned on, and the first N-type transistor M0 and the second P-type transistor M3 are turned off. The current flows from the terminal a through the first P-type transistor M2, the first diode D1, the second N-type transistor M1, and finally to the terminal B. When the terminal a is the mounting detection unit and the terminal B is the voltage detection terminal, the first N-type transistor M0, the second P-type transistor M3, and the second diode D1 are turned on, and the second N-type transistor M1 and the first P-type transistor M2 are turned off. The current flows from the terminal B through the second P-type transistor M3, the first diode D1, the first N-type transistor M0, and finally to the terminal a.

The controlled active device is not limited to the MOS tube, and other controlled active devices can be replaced by the controlled active device.

On the basis of the above embodiment, the uncontrolled active device/passive device may also be connected in series at the front end (as shown in fig. 7) or the back end of the controlled active device. Fig. 15 shows a circuit diagram of series connection of uncontrolled active devices/passive devices at the front end of controlled active devices, uncontrolled active devices. The uncontrolled active device is divided into MOS tube, triode and diode. The passive devices are divided into resistors, capacitors and inductors. One or more uncontrolled active/passive devices may be connected in series.

In addition, the a end may be fixed as a voltage detection end and the B end may be fixed as an installation detection portion, or the a end may be fixed as an installation detection portion and the B end may be fixed as a voltage detection end. In this case, it is necessary to install the detection circuit according to the corresponding terminal access consumable container. Then, at this moment, the consumable container installation detection circuit can be designed without including two symmetrical sub-circuits, and only one sub-circuit is left to realize the detection function.

In the second embodiment, as shown in fig. 16, the consumable container mounting detection circuit comprises a controlled active device, a first diode D1 and a second diode D2. The anode of the first diode D1 is connected with the cathode of the second diode D2, and is connected with the mounting detection part/voltage detection end through a control active device after being connected together. The cathode of the first diode D1 is connected to the anode of the second diode D2, and is commonly connected to the voltage detection terminal/mounting detection unit. The first diode D1 and the controlled active device form a symmetrical sub-detection circuit, and the second diode D2 and the controlled active device form a symmetrical sub-detection circuit.

When the terminal a is a voltage detection terminal and the terminal B is a mounting detection part, the first diode D1 is turned on, and a current flows from the terminal a to the active device through the first diode D1 to the terminal B. When the terminal a is the mounting detection unit and the terminal B is the voltage detection terminal, the second diode D2 is turned on, and a current flows from the terminal B to the terminal a through the second diode D2.

The circuit is not limited to the diode, and the diode can be replaced by other uncontrolled active devices with a unidirectional conduction function, such as a PMOS transistor (as shown in fig. 17a, i.e., embodiment three), an NMOS transistor (as shown in fig. 17b, i.e., embodiment three) with a controlled terminal connected to a determined potential, or a triode with a controlled terminal connected to a determined potential. And the controlled active device in the above circuit may be a circuit composed of a plurality of controlled active devices, such as the circuit shown in fig. 8 or fig. 12.

As shown in fig. 17a, the consumable container mounting detection circuit comprises a controlled active device, a first P-type transistor M1 and a second P-type transistor M2, wherein the gate of the first P-type transistor M1 is connected to the source of the first P-type transistor M1, and the source of the first P-type transistor M1 is connected to the drain of the second P-type transistor M2 in common, and then connected to a voltage detection terminal/mounting detection part through the controlled active device. The gate of the second P-type transistor M2 is connected to the source of the second P-type transistor M2, and the source of the second P-type transistor M2 and the drain of the first P-type transistor M1 are commonly connected to a mounting detection unit/voltage detection terminal. When the terminal a is a voltage detection terminal and the terminal B is a mounting detection part, the first P-type transistor M1 is turned on, and a current flows from the terminal a to the active device through the first P-type transistor M1 to the terminal B. When the terminal a is the mounting detection unit and the terminal B is the voltage detection terminal, the second P-type transistor M2 is turned on, and a current flows from the terminal B to the terminal a through the second P-type transistor M2.

As shown in fig. 17b, the consumable container mounting detection circuit comprises a controlled active device, a first N-type transistor M1 and a second N-type transistor M2, wherein the gate of the first N-type transistor M1 is connected to the source of the first N-type transistor M1, and the source of the first N-type transistor M1 is connected to the drain of the second N-type transistor M2 in common, and then connected to a voltage detection terminal/mounting detection part via the controlled active device. The gate of the second N-type transistor M2 is connected to the source of the second N-type transistor M2, and the source of the second N-type transistor M2 and the drain of the first N-type transistor M1 are commonly connected to a mounting detection unit/voltage detection terminal. When the terminal a is a voltage detection terminal and the terminal B is a mounting detection part, the first N-type transistor M1 is turned on, and a current flows from the terminal a to the active device through the first N-type transistor M1 to the terminal B. When the terminal a is the mounting detection unit and the terminal B is the voltage detection terminal, the second N-type transistor M2 is turned on, and a current flows from the terminal B to the terminal a through the second N-type transistor M2.

The consumable container installation detection circuit comprises a controlled active device, a first triode and a second triode. After the emitting electrode of the first triode and the collecting electrode of the second triode are connected together, the controlled active device is connected with a voltage detection end/installation detection part; the emitter of the second triode and the collector of the first triode are connected with a mounting detection part/voltage detection end together; and the base electrode of the first triode and the base electrode of the second triode are respectively connected with a determined potential. When the end A is a voltage detection end and the end B is an installation detection part, the first triode is conducted, and current is controlled by the active device from the end A and flows to the end B through the first triode. When the end A is an installation detection part and the end B is a voltage detection end, the second triode is conducted, and current flows from the end B to the end A through the second triode.

On the basis of the above embodiment, an uncontrolled active device/passive device may be connected in series at the front end or the back end of the controlled active device (as shown in fig. 7). One or more uncontrolled active/passive devices may be connected in series.

In addition, the a end may be fixed as a voltage detection end and the B end may be fixed as an installation detection portion, or the a end may be fixed as an installation detection portion and the B end may be fixed as a voltage detection end. In this case, it is necessary to install the detection circuit according to the corresponding terminal access consumable container. Then, at this moment, the consumable container installation detection circuit can be designed without including two symmetrical sub-circuits, and only one sub-circuit is left to realize the detection function.

In another embodiment, the consumable container mounting detection circuit (refer to fig. 5) is a consumable container mounting detection circuit composed of uncontrolled active devices. The consumable container installation detection circuit comprises two symmetrical sub-detection circuits, so that when two ends of the consumable container installation detection circuit are positively or reversely connected between the installation detection part and the voltage detection end of the imaging device, one of the symmetrical sub-detection circuits is conducted, and the AB conductive path can be communicated.

Specifically, the consumable container mounting detection circuit (refer to fig. 13) includes a first diode D1 and a second diode D2. The anode of the first diode D1 is connected to the cathode of the second diode D2, and is commonly connected to a voltage detection terminal/mounting detection unit. The cathode of the first diode D1 is connected to the anode of the second diode D2, and is commonly connected to the mounting detection unit/voltage detection terminal. The first diode D1 forms a symmetric sub-detection circuit, and the second diode D2 forms a symmetric sub-detection circuit.

When the terminal a is a voltage detection terminal and the terminal B is an attachment detection unit, the second diode D2 is turned on, and a current flows from the terminal a to the terminal B through the second diode D2. When the terminal a is the mounting detection unit and the terminal B is the voltage detection terminal, the first diode D1 is turned on, and a current flows from the terminal B to the terminal a through the first diode D1.

The circuit is not limited to the diode, and the diode can be replaced by other uncontrolled active devices with a one-way conduction function, such as an MOS (metal oxide semiconductor) tube, a triode and the like.

On the basis of the above embodiment, the uncontrolled active device/passive device may also be connected in series at the front end (as shown in fig. 5) or the back end of the uncontrolled active device. Fig. 13 shows a circuit diagram for connecting uncontrolled active devices/passive devices in series at the front end of an uncontrolled active device. The uncontrolled active device is divided into MOS tube, triode and diode. The passive devices are divided into resistors, capacitors and inductors. One or more uncontrolled active/passive devices may be connected in series.

In addition, the a end may be fixed as a voltage detection end and the B end may be fixed as an installation detection portion, or the a end may be fixed as an installation detection portion and the B end may be fixed as a voltage detection end. In this case, it is necessary to install the detection circuit according to the corresponding terminal access consumable container. Then, at this moment, the consumable container installation detection circuit can be designed without including two symmetrical sub-circuits, and only one sub-circuit is left to realize the detection function.

In another embodiment, the consumable container mounting detection circuit (refer to fig. 6) is a consumable container mounting detection circuit composed of an uncontrolled active device and a passive device. The consumable container installation detection circuit comprises two symmetrical sub-detection circuits, so that when two ends of the consumable container installation detection circuit are positively or reversely connected between the installation detection part and the voltage detection end of the imaging device, one of the symmetrical sub-detection circuits is conducted, and the AB conductive path can be communicated.

Specifically, the consumable container mounting detection circuit (refer to fig. 14) includes a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, and a first resistor R1. The anode of the first diode D1 is connected with the installation detection part/voltage detection end, and the cathode of the first diode D1 is connected with the cathode of the second diode D2 and is commonly connected with one end of a first resistor R1. The positive electrode of the second diode D2 is connected to the voltage detection terminal/attachment detection unit. The cathode of the third diode D3 is connected to the mounting detection unit/voltage detection terminal, and the anode of the third diode D3 is connected to the anode of the fourth diode D4 and commonly connected to the other end of the first resistor R1. The negative electrode of the fourth diode D4 is connected to the voltage detection terminal/mounting detection unit. The first diode D1, the fourth diode D4 and the first resistor R1 form a symmetrical sub-detection circuit, and the second diode D2, the third diode D3 and the first resistor R1 form a symmetrical sub-detection circuit.

When the terminal a is a voltage detection terminal and the terminal B is an installation detection part, the first diode D1 and the fourth diode D4 are turned on, and a current flows from the terminal a to the terminal B through the first diode D1, the first resistor R1 and the fourth diode D4. When the terminal a is the mounting detection unit and the terminal B is the voltage detection terminal, the second diode D2 and the third diode D3 are turned on, and a current flows from the terminal B to the terminal a through the second diode D2, the first resistor R1, and the third diode D3.

The circuit is not limited to one resistor, a plurality of resistors and a passive device of a resistor type, and can be other passive devices or combinations of various passive devices.

On the basis of the above embodiment, the uncontrolled active device/passive device may also be connected in series at the front end (as shown in fig. 6) or the back end of the uncontrolled active device, passive device. Fig. 14 shows a circuit diagram of a series connection of uncontrolled active/passive devices in front of the uncontrolled active/passive devices. The uncontrolled active device is divided into MOS tube, triode and diode. The passive devices are divided into resistors, capacitors and inductors. One or more uncontrolled active/passive devices may be connected in series.

In addition, the a end may be fixed as a voltage detection end and the B end may be fixed as an installation detection portion, or the a end may be fixed as an installation detection portion and the B end may be fixed as a voltage detection end. In this case, it is necessary to install the detection circuit according to the corresponding terminal access consumable container. Then, at this moment, the consumable container installation detection circuit can be designed without including two symmetrical sub-circuits, and only one sub-circuit is left to realize the detection function.

The invention also provides a consumable chip which comprises the installation detection circuit. The mounting detection circuit can be integrated on a consumable chip; the installation detection circuit can also be an independent chip/module, and is independently arranged with the consumable chip and establishes the connection relationship between the two.

The invention also provides a consumable container, and the consumable chip is arranged on the consumable container.

The invention also provides a consumable container installation detection system which comprises a consumable container, the installation detection circuit and the imaging equipment. Install above-mentioned consumptive material chip on the consumptive material container, in order to detect, consumptive material container installation detection circuitry in the consumptive material chip connects between imaging device's installation detection portion and voltage detection end. Whether the consumable container is successfully installed is determined by measuring the I-V characteristics of the consumable container installation detection circuit. The installation detection circuit has N, corresponds N consumptive material container. When the installation detection part detects that the installation condition is met, the consumable container is successfully installed. When the mounting detection part is a mounting current detection part, the mounting condition is that the detection current is greater than or equal to a threshold current; when the mounting detection section is a mounting voltage detection section, the mounting condition is that the detection voltage is lower than a threshold voltage.

A consumable container installation detection method includes:

step S01, connecting the consumable container installation detection circuit between the installation detection part and the voltage detection end of the imaging device;

step S02, measuring the I-V characteristic of the consumable container installation detection circuit, when the installation detection part detects that the installation condition is met, forming a conductive path between the installation detection part and the voltage detection end, and then successfully installing the consumable container; otherwise, the consumable container fails to be installed.

Wherein, when the mounting detection section is a mounting current detection section, the mounting condition is that the detection current is greater than or equal to a threshold current; when the mounting detection section is a mounting voltage detection section, the mounting condition is that the detection voltage is lower than a threshold voltage.

The consumable container mounting detection circuit may adopt any one of the above embodiments.

Under one embodiment, the method further comprises: before the step of connecting the consumable container installation detection circuit between the installation detection part and the voltage detection end of the imaging equipment, the consumable container safety detection circuit comprising two symmetrical sub-detection circuits is arranged, so that when two ends of the consumable container installation detection circuit are positively or reversely connected between the installation detection part and the voltage detection end of the imaging equipment, one of the symmetrical sub-detection circuits is switched on. Therefore, when any one end of the consumable container installation detection circuit is connected with the installation detection part/voltage detection end, detection can be realized.

Under another embodiment, the method further comprises: before the step of connecting the consumable container installation detection circuit between the installation detection part and the voltage detection end of the imaging device, one end of the consumable container installation detection circuit is arranged to be connected with the installation detection part of the imaging device, and the other end of the consumable container installation detection circuit is arranged to be connected with the voltage detection end. Like this, connect consumptive material container installation detection circuitry according to the stiff end, simplify consumptive material container installation detection circuitry, need not to design and include two symmetry sub-detection circuitry, only need one just can realize the detection function.

In addition, the method further comprises: before the step of connecting the consumable container installation detection circuit between the installation detection part and the voltage detection end of the imaging equipment, an uncontrolled active device or a passive device is connected in series at the front end or the rear end of the consumable container installation detection circuit.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.