阅读说明：本技术 一种耗材容器安装检测方法、耗材芯片、耗材容器 (Consumable container installation detection method, consumable chip and consumable container ) 是由 不公告发明人 于 2019-11-06 设计创作，主要内容包括：一种耗材容器安装检测方法、耗材芯片、耗材容器,属于成像技术领域。方法包括将耗材容器安装检测电路连接于成像设备的安装检测部和电压检测端之间；测量耗材容器安装检测电路的I-V特性,当安装检测部检测满足安装条件时,安装检测部和电压检测端之间形成导电通路,则耗材容器安装成功；否则,耗材容器安装失败；当安装检测部为安装电流检测部时,所述安装条件为检测电流大于或等于阈值电流；当安装检测部为安装电压检测部时,所述安装条件为检测电压低于阈值电压。耗材芯片包括耗材容器安装检测电路。耗材容器安装有上述耗材芯片。本发明检测简单、检测指示明确。(A consumable container installation detection method, a consumable chip and a consumable container belong to the technical field of imaging. The method comprises connecting the consumable container installation detection circuit between the installation detection part and the voltage detection end of the imaging device; 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 chip comprises a consumable container installation detection circuit. The consumable container is provided with the consumable chip. The invention has simple detection and definite detection indication.)

1. 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.

2. The method for detecting the installation of a consumable container according to claim 1, 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, the consumable container installation 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.

3. The method for detecting the installation of a consumable container according to claim 1, 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 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.

4. The method for detecting the mounting of a consumable container according to claim 2 or 3, 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, the active device or the passive device is connected in series at the front end or the rear end of the consumable container installation detection circuit.

5. The method for detecting the installation of a consumable container according to claim 1, wherein the consumable container installation detection circuit is a consumable container installation detection circuit composed of controlled active devices, or a consumable container installation detection circuit composed of controlled active devices and passive devices, or a consumable container installation detection circuit composed of active devices and passive devices; or a detection circuit is installed for the consumable container consisting of the controlled active device and the active device.

6. 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.

7. The consumable chip of claim 6, wherein the consumable container mounting detection circuit comprises two symmetrical sub-detection circuits, such that one of the symmetrical sub-detection circuits is turned on when two ends of the consumable container mounting detection circuit are connected to or disconnected from the mounting detection portion and the voltage detection end of the imaging device.

8. The consumable chip of claim 6, wherein the consumable container mounting detection circuit is a consumable container mounting detection circuit composed of controlled active devices, or a consumable container mounting detection circuit composed of controlled active devices and passive devices, or a consumable container mounting detection circuit composed of active devices and passive devices, or a consumable container mounting detection circuit composed of controlled active devices and active devices.

9. The consumable chip of claim 8, wherein the front end or the rear end of the consumable container installation detection circuit is further connected with an active or passive device in series.

10. The consumable chip of claim 7, wherein the consumable container mounting detection circuit comprises a first N-type transistor, a second N-type transistor, a first P-type transistor, and a second P-type transistor; the source end of the first N-type transistor is connected with the source end of the second N-type transistor, the gate end of the first N-type transistor is connected with the drain end of the second N-type transistor and is commonly connected with an installation detection part/voltage detection part, and the drain end of the first N-type transistor is connected with the gate end of the second N-type transistor and is commonly connected with the voltage detection part/installation detection part; the source end of the first P-type transistor is connected with the source end of the second P-type transistor, the grid end of the first P-type transistor is connected with the drain end of the second P-type transistor and is commonly connected with the installation detection part/voltage detection part, and the drain end of the first P-type transistor and the grid end of the second P-type transistor are connected and are commonly connected with the voltage detection part/installation detection part; the substrate ends of the first N-type transistor, the second N-type transistor, the first P-type transistor and the second P-type transistor are all connected with respective source ends.

11. The consumable chip of claim 7, wherein the consumable container mounting detection circuit comprises a first N-type transistor, a second N-type transistor, a first P-type transistor, a second P-type transistor, at least one passive device; the source end of the first N-type transistor is connected with the source end of the second N-type transistor, the gate end of the first N-type transistor is connected with the drain end of the second N-type transistor and is commonly connected with an installation detection part/voltage detection part, and the drain end of the first N-type transistor is connected with the gate end of the second N-type transistor and is commonly connected with the voltage detection part/installation detection part; the source end of the first P-type transistor is connected with the source end of the second P-type transistor, the grid end of the first P-type transistor is connected with the drain end of the second P-type transistor and is commonly connected with the installation detection part/voltage detection part, and the drain end of the first P-type transistor and the grid end of the second P-type transistor are connected and are commonly connected with the voltage detection part/installation detection part; at least one passive device is connected between the part between the source end of the first N-type transistor and the source end of the second N-type transistor and the part between the source end of the first P-type transistor and the source end of the second P-type transistor; the substrate ends of the first N-type transistor, the second N-type transistor, the first P-type transistor and the second P-type transistor are all connected with respective source ends.

12. The consumable chip of claim 7, wherein the consumable container mounting detection circuit comprises a first N-type transistor, a second N-type transistor, a first P-type transistor, a second P-type transistor, at least one transmission gate; the source end of the first N-type transistor is connected with the source end of the second N-type transistor, the gate end of the first N-type transistor is connected with the drain end of the second N-type transistor and is commonly connected with an installation detection part/voltage detection part, and the drain end of the first N-type transistor is connected with the gate end of the second N-type transistor and is commonly connected with the voltage detection part/installation detection part; the source end of the first P-type transistor is connected with the source end of the second P-type transistor, the grid end of the first P-type transistor is connected with the drain end of the second P-type transistor and is commonly connected with the installation detection part/voltage detection part, and the drain end of the first P-type transistor and the grid end of the second P-type transistor are connected and are commonly connected with the voltage detection part/installation detection part; and at least one transmission gate is connected between the part between the source end of the first N-type transistor and the source end of the second N-type transistor and the part between the source end of the first P-type transistor and the source end of the second P-type transistor.

13. The consumable chip of claim 7, wherein the consumable container mounting detection circuit comprises a first N-type transistor, a second N-type transistor, a first P-type transistor; a source end of the first N-type transistor is connected with a source end of the second N-type transistor, a gate end of the first N-type transistor, a drain end of the second N-type transistor and a drain end of the first P-type transistor are connected and commonly connected with an installation detection part/voltage detection part, and a drain end of the first N-type transistor, a gate end of the second N-type transistor and a source end of the first P-type transistor are connected and commonly connected with a voltage detection part/installation detection part; a part between the source end of the first N-type transistor and the source end of the second N-type transistor is connected with the grid end of the first P-type transistor; the substrate ends of the first N-type transistor and the second N-type transistor are connected with respective source ends; and the substrate end of the first P-type transistor is connected with a power supply potential.

14. The consumable chip of claim 7, wherein the consumable container mounting detection circuit comprises a first diode, a second diode; the anode of the first diode is connected with the cathode of the second diode, and the anode of the first diode and the cathode of the second diode are commonly connected with a 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 is connected with the anode of the second diode and is commonly connected with the installation detection part/voltage detection end; alternatively, the first and second electrodes may be,

the consumable container installation detection circuit comprises a first diode, a second diode, a third diode, a fourth diode and a first resistor; the anode of the first diode is connected with the installation detection part/voltage detection end, the cathode of the first diode is connected with the cathode of the second diode, and the cathode of the first diode and the cathode of the second diode are connected with one end of the first resistor; the anode of the second diode is connected with the voltage detection end/installation detection part; the cathode of the third diode is connected with the installation detection part/voltage detection end, the anode of the third diode is connected with the anode of the fourth diode, and the anode of the third diode and the anode of the fourth diode are connected with the other end of the first resistor; and the negative electrode of the fourth diode is connected with the voltage detection end/installation detection part.

15. The consumable chip of claim 7, wherein the consumable container mounting detection circuit comprises a first N-type transistor, a second N-type transistor, a first P-type transistor, a second P-type transistor, a first diode; the source end of the first N-type transistor is connected with the source end of the second N-type transistor, the gate end of the first N-type transistor is connected with the drain end of the second N-type transistor and is commonly connected with an installation detection part/voltage detection part, and the drain end of the first N-type transistor is connected with the gate end of the second N-type transistor and is commonly connected with the voltage detection part/installation detection part; the source end of the first P-type transistor is connected with the source end of the second P-type transistor, the grid end of the first P-type transistor is connected with the drain end of the second P-type transistor and is commonly connected with the installation detection part/voltage detection part, and the drain end of the first P-type transistor and the grid end of the second P-type transistor are connected and are commonly connected with the voltage detection part/installation detection part; the part between the source end of the first N-type transistor and the source end of the second N-type transistor is connected with the cathode of the first diode, and the part between the source end of the first P-type transistor and the source end of the second P-type transistor is connected with the anode of the first diode; the substrate ends of the first N-type transistor, the second N-type transistor, the first P-type transistor and the second P-type transistor are all connected with respective source ends.

16. A consumable container, characterized in that a consumable chip according to any one of claims 6-15 is mounted.

Technical Field

The invention relates to the technical field of imaging, in particular to a consumable container installation detection method, a consumable chip and a consumable container.

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 container installation detection method, a consumable chip and a consumable container which are simple in detection and clear in detection indication.

The invention is realized by the following technical scheme:

the invention 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 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 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 installation 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.

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 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.

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, the active device or the passive device is connected in series at the front end or the rear end of the consumable container installation detection circuit.

Preferably, the consumable container installation detection circuit is a consumable container installation detection circuit formed by a controlled active device, or a consumable container installation detection circuit formed by a controlled active device and a passive device, or a consumable container installation detection circuit formed by an active device and a passive device; or a detection circuit is installed for the consumable container consisting of the controlled active device and the active device.

The invention also 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 connected between an installation detection part and the voltage detection end of the 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 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 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.

Preferably, the consumable container installation detection circuit is a consumable container installation detection circuit composed of a controlled active device, or a consumable container installation detection circuit composed of a controlled active device and a passive device, or a consumable container installation detection circuit composed of an active device and a passive device, or a consumable container installation detection circuit composed of a controlled active device and an active device.

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

Preferably, the consumable container installation detection circuit comprises a first N-type transistor, a second N-type transistor, a first P-type transistor and a second P-type transistor; the source end of the first N-type transistor is connected with the source end of the second N-type transistor, the gate end of the first N-type transistor is connected with the drain end of the second N-type transistor and is commonly connected with an installation detection part/voltage detection part, and the drain end of the first N-type transistor is connected with the gate end of the second N-type transistor and is commonly connected with the voltage detection part/installation detection part; the source end of the first P-type transistor is connected with the source end of the second P-type transistor, the grid end of the first P-type transistor is connected with the drain end of the second P-type transistor and is commonly connected with the installation detection part/voltage detection part, and the drain end of the first P-type transistor and the grid end of the second P-type transistor are connected and are commonly connected with the voltage detection part/installation detection part; the substrate ends of the first N-type transistor, the second N-type transistor, the first P-type transistor and the second P-type transistor are all connected with respective source ends.

Preferably, the consumable container installation detection circuit comprises a first N-type transistor, a second N-type transistor, a first P-type transistor, a second P-type transistor and at least one passive device; the source end of the first N-type transistor is connected with the source end of the second N-type transistor, the gate end of the first N-type transistor is connected with the drain end of the second N-type transistor and is commonly connected with an installation detection part/voltage detection part, and the drain end of the first N-type transistor is connected with the gate end of the second N-type transistor and is commonly connected with the voltage detection part/installation detection part; the source end of the first P-type transistor is connected with the source end of the second P-type transistor, the grid end of the first P-type transistor is connected with the drain end of the second P-type transistor and is commonly connected with the installation detection part/voltage detection part, and the drain end of the first P-type transistor and the grid end of the second P-type transistor are connected and are commonly connected with the voltage detection part/installation detection part; at least one passive device is connected between the part between the source end of the first N-type transistor and the source end of the second N-type transistor and the part between the source end of the first P-type transistor and the source end of the second P-type transistor; the substrate ends of the first N-type transistor, the second N-type transistor, the first P-type transistor and the second P-type transistor are all connected with respective source ends.

Preferably, the consumable container installation detection circuit comprises a first N-type transistor, a second N-type transistor, a first P-type transistor, a second P-type transistor and at least one transmission gate; the source end of the first N-type transistor is connected with the source end of the second N-type transistor, the gate end of the first N-type transistor is connected with the drain end of the second N-type transistor and is commonly connected with an installation detection part/voltage detection part, and the drain end of the first N-type transistor is connected with the gate end of the second N-type transistor and is commonly connected with the voltage detection part/installation detection part; the source end of the first P-type transistor is connected with the source end of the second P-type transistor, the grid end of the first P-type transistor is connected with the drain end of the second P-type transistor and is commonly connected with the installation detection part/voltage detection part, and the drain end of the first P-type transistor and the grid end of the second P-type transistor are connected and are commonly connected with the voltage detection part/installation detection part; and at least one transmission gate is connected between the part between the source end of the first N-type transistor and the source end of the second N-type transistor and the part between the source end of the first P-type transistor and the source end of the second P-type transistor.

Preferably, the consumable container installation detection circuit comprises a first N-type transistor, a second N-type transistor and a first P-type transistor; a source end of the first N-type transistor is connected with a source end of the second N-type transistor, a gate end of the first N-type transistor, a drain end of the second N-type transistor and a drain end of the first P-type transistor are connected and commonly connected with an installation detection part/voltage detection part, and a drain end of the first N-type transistor, a gate end of the second N-type transistor and a source end of the first P-type transistor are connected and commonly connected with a voltage detection part/installation detection part; a part between the source end of the first N-type transistor and the source end of the second N-type transistor is connected with the grid end of the first P-type transistor; the substrate ends of the first N-type transistor and the second N-type transistor are connected with respective source ends; and the substrate end of the first P-type transistor is connected with a power supply potential.

Preferably, the consumable container installation detection circuit comprises a first diode and a second diode; the anode of the first diode is connected with the cathode of the second diode, and the anode of the first diode and the cathode of the second diode are commonly connected with a 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 is connected with the anode of the second diode and is commonly connected with the installation detection part/voltage detection end; or the consumable container installation detection circuit comprises a first diode, a second diode, a third diode, a fourth diode and a first resistor; the anode of the first diode is connected with the installation detection part/voltage detection end, the cathode of the first diode is connected with the cathode of the second diode, and the cathode of the first diode and the cathode of the second diode are connected with one end of the first resistor; the anode of the second diode is connected with the voltage detection end/installation detection part; the cathode of the third diode is connected with the installation detection part/voltage detection end, the anode of the third diode is connected with the anode of the fourth diode, and the anode of the third diode and the anode of the fourth diode are connected with the other end of the first resistor; and the negative electrode of the fourth diode is connected with the voltage detection end/installation detection part.

Preferably, the consumable container installation detection circuit comprises a first N-type transistor, a second N-type transistor, a first P-type transistor, a second P-type transistor and a first diode; the source end of the first N-type transistor is connected with the source end of the second N-type transistor, the gate end of the first N-type transistor is connected with the drain end of the second N-type transistor and is commonly connected with an installation detection part/voltage detection part, and the drain end of the first N-type transistor is connected with the gate end of the second N-type transistor and is commonly connected with the voltage detection part/installation detection part; the source end of the first P-type transistor is connected with the source end of the second P-type transistor, the grid end of the first P-type transistor is connected with the drain end of the second P-type transistor and is commonly connected with the installation detection part/voltage detection part, and the drain end of the first P-type transistor and the grid end of the second P-type transistor are connected and are commonly connected with the voltage detection part/installation detection part; the part between the source end of the first N-type transistor and the source end of the second N-type transistor is connected with the cathode of the first diode, and the part between the source end of the first P-type transistor and the source end of the second P-type transistor is connected with the anode of the first diode; the substrate ends of the first N-type transistor, the second N-type transistor, the first P-type transistor and the second P-type transistor are all connected with respective source ends.

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 has the following beneficial effects:

the invention discloses a consumable container installation detection method, a consumable chip and a consumable container, which are simple in detection and clear in detection instruction.

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 flowchart illustrating a method for detecting the installation of a consumable container according to the present invention;

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

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 controlled active devices, passive devices, and a consumable container mounting detection circuit with active devices/passive devices 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 active device and a consumable container mounting detection circuit with a front end connected in series with an 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 an active device, a passive device, and a consumable container mounting detection circuit with a front end connected to the active device/passive device in series);

FIG. 8 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 active device, and a consumable container mounting detection circuit with a front end connected with a source device/a passive device in series);

FIG. 9 is a detailed circuit diagram of the first embodiment according to FIG. 4;

FIG. 10 is an I-V characteristic of the circuit of FIG. 9;

FIG. 11 is a detailed circuit diagram according to the embodiment of FIG. 5;

FIG. 12 is a detailed circuit diagram of the second embodiment according to FIG. 4;

FIG. 13 is a detailed circuit diagram of the third embodiment according to FIG. 4;

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

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

FIG. 16 is a detailed circuit diagram according to the first embodiment of FIG. 8;

FIG. 17 is a detailed circuit diagram of a second embodiment according to the embodiment of FIG. 8;

FIG. 18a is a detailed circuit diagram (PMOS transistor) of the third embodiment according to FIG. 8;

FIG. 18b is a detailed circuit diagram (NMOS transistor) of the fourth embodiment according to FIG. 8.

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 active device, and the on/off of the consumable container installation detection circuit is realized by utilizing the on-off characteristic of the device.

When the mounting detection section is a mounting current detection section, the mounting condition under which the conductive path can be conducted 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 under which the conductive path can be conducted is that the detection voltage is lower than a threshold voltage.

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

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.