WO2011006444A1

WO2011006444A1 - Storage chip in imaging box for imaging device

Info

Publication number: WO2011006444A1
Application number: PCT/CN2010/075207
Authority: WO
Inventors: 丁励
Original assignee: 珠海艾派克微电子有限公司
Priority date: 2009-07-17
Filing date: 2010-07-16
Publication date: 2011-01-20
Also published as: CN101692347A

Abstract

A storage chip in imaging box for imaging device comprises a control unit, a storage unit, an interface unit and an electric storage module/ a battery. The control unit controls the writing of the data parsed from the information which is outputted from the imaging device and received by the interface unit, and the reading and the integration of the data in the storage unit into a signal which is outputted to the imaging device through the interface unit; the storage unit includes a non-volatile memory and a volatile memory; the electric storage module stores electric power when the imaging device provides electricity to the storage chip, the control unit controls the transferring of the data in the non-volatile memory to the volatile memory, the electric storage module/ the battery provides electricity to the storage chip when the imaging device cuts off electricity for the storage chip, the control unit controls the transferring of the data in the volatile memory to the non-volatile memory; and the volatile memory exchanges the data with the imaging device.

Description

Memory chip on the imaging cartridge for imaging device

The present application claims priority to Chinese Patent Application No. 200910108786.8, entitled "Memory Chips on Imaging Cartridges for Imaging Devices", filed on July 17, 2009, the entire contents of which are incorporated herein by reference. In the application.

Technical field

The present invention relates to the field of storage technology, and in particular to a storage chip on an imaging cartridge for an image forming apparatus.

Background technique

The imaging information of the imaging device is recorded on the memory chip in addition to being recorded on the imaging device. Among them, the memory chip is generally attached to an imaging cartridge mounted in the image forming apparatus for forming an image on the medium, and functions to control the matching of the imaging cartridge and the image forming apparatus and the supply of the image forming information in the subsequent image forming process. Generally, the memory chip includes a control unit, a storage unit, and an interface unit, wherein the storage unit usually records initial information about the imaging cartridge model, manufacturing date, color, total amount of recording materials, and the like, and the imaging date obtained in the subsequent imaging process. Imaging information such as the remaining amount of recording material in the imaging cartridge. Initial information such as the preset imaging cartridge model and color is stored in the imaging device.

Generally, when the imaging cartridge is first mounted on the imaging device, the imaging device first detects whether the initial information stored in the memory chip attached to the imaging cartridge and the pre-stored information in the imaging device match, and if they match, the display is ready. Continued, on the contrary, an error message is displayed, and the user is reminded to replace the imaging cartridge; during the imaging process, the imaging device records imaging information such as the imaging date, the ink remaining amount in the imaging cartridge, and writes the corresponding information into the memory chip, and then Read verification, if the verification is successful, continue to control the use of the imaging cartridge to form an image on the medium, and conversely, stop the imaging operation and prompt the user to replace the imaging cartridge. When the data read by the imaging device from the memory chip indicates that the remaining amount of recording material in the imaging cartridge is insufficient, the user is prompted to replace the imaging cartridge or stop controlling the imaging process.

Since the imaging device has a state in which the power supply of the memory chip is not present after the imaging device is turned off or during the imaging process, the memory chip needs to have the function of keeping the stored data without loss in the case of no power, that is, saving the same. The state of use of the attached imaging cartridge is not lost. Therefore, the data storage unit of the memory chip must be non-volatile; and since the data in the memory chip that needs to be rewritten during the imaging process is only a small amount, most of the current The memory chip is exchanged with the imaging device by the EERPOM having the function of changing the byte data one by one as the storage unit. Data such as the state of use of the imaging cartridge sent by the device, such as the remaining amount of the recorded material in the imaging cartridge, and the like.

Since changing the data in the target cell of the EEPROM requires first applying a local electric field at the target cell to return the electrons in the EEPROM memory cell to the normal state, the target cell of the EEPROM is erased and then overwritten. Such a change is too slow. When the imaging device and the memory chip on the imaging cassette exchange data at a high speed, that is, when the frequency of transmitting the changed data exceeds the frequency at which the EEPROM saves the data, the memory chip is due to its EEPROM as a storage unit. If the data cannot be changed in time, when the imaging device reads the data check from the EEPROM of the memory chip, it will stop because the read data is different from the transmitted data or does not match the data rule preset by the imaging device. The imaging operation, and displaying an error message, affects the user's imaging operation. In addition, at this time, the data stored in the EEPROM of the memory chip does not conform to the data rule preset by the imaging device, and therefore, the imaging device will no longer be able to recognize the imaging cartridge with the memory chip, that is, the imaging device will no longer use the imaging cartridge. Imaging on the media, so that the user can no longer use the imaging cartridge with this memory chip, resulting in waste.

Summary of the invention

Embodiments of the present invention provide a memory chip on an imaging cartridge for an imaging device, so as to solve the problem that not only the low-speed memory chip on the imaging cartridge for the existing imaging device but also the high-speed data exchange with the imaging device can maintain the communication and send the imaging device. All the data is stored in a technical problem.

In order to solve the above technical problem, the technical solution adopted by the embodiment of the present invention is:

A memory chip on an imaging cartridge for an imaging device, comprising: a control unit, a storage unit, and an interface unit, wherein the control unit controls writing data parsed out from information output by the imaging device received by the interface unit into the storage unit, and The data in the storage unit is read out and integrated into a signal outputted to the imaging device through the interface unit, and further includes a power storage module; the storage unit includes a nonvolatile memory and a volatile memory, and the nonvolatile memory The initial information is stored, and the volatile memory exchanges data with the imaging device;

When the imaging device supplies power to the memory chip, the power storage module stores power, and the control unit controls to transfer the data in the non-volatile memory to the volatile memory; when the imaging device powers down the memory chip, The power storage module supplies power to the memory chip, and the control unit controls the transfer of data in the volatile memory to the non-volatile memory.

A memory chip on an imaging cartridge for an imaging device, including a control unit, a storage unit, and an interface And the control unit controls the data parsed in the information output by the imaging device received by the interface unit to be written into the storage unit, and the data in the storage unit is read out and integrated into a signal and outputted to the imaging device through the interface unit. And including a battery; the storage unit includes a non-volatile memory and a volatile memory, and the volatile memory exchanges data with the imaging device;

When the imaging device supplies power to the memory chip, the control unit controls to transfer the data in the non-volatile memory to the volatile memory; when the imaging device powers down the memory chip, the battery supplies power to the memory chip, and the control unit Control transfers data in volatile memory to non-volatile memory.

After adopting the above technical solution, since the storage unit includes a nonvolatile memory, a volatile memory, and a storage module/battery; the power storage module saves power when the imaging device supplies power to the storage chip, and the control unit controls the nonvolatile The data in the memory is transferred to the volatile memory, and the power storage module/battery supplies power to the memory chip when the imaging device powers down the memory chip, and the control unit controls to transfer the data in the volatile memory to the nonvolatile memory. In the memory; the volatile memory exchanges data with the imaging device. In this way, the memory chip can have both non-volatile and fast data storage, and can maintain normal communication and keep all the data sent by the imaging device intact even when the imaging device and the memory chip on the imaging cassette exchange data at high speed. The invention solves the technical problem that the memory chip on the imaging cartridge of the existing imaging device can not keep the communication normal and exchange all the data sent by the imaging device in good condition when the data is exchanged with the imaging device at a high speed.

DRAWINGS

1 is an information exchange diagram of a memory chip including a volatile memory and a nonvolatile memory and an imaging device in an embodiment of the present invention.

2 is an information exchange diagram of a memory chip and an imaging device of the SRAM in the memory unit in the embodiment of the present invention.

3 is an information exchange diagram of a volatile memory in a memory cell in an embodiment of the present invention as a memory chip of a DRAM and an imaging device.

4 is an information exchange diagram of a memory chip and an image forming apparatus in which a memory unit supplies power to a control unit and a memory unit, and the memory unit includes a volatile memory and a nonvolatile memory, in an embodiment of the present invention.

FIG. 5 is an information exchange diagram of a memory chip and an image forming apparatus in which a volatile memory in a memory unit is powered by a battery, and a memory in the memory unit is an embodiment of the present invention.

6 is a power supply of a control unit and a storage unit by a battery in an embodiment of the present invention, and in a storage unit The volatile memory is an information exchange diagram of the DRAM memory chip and the imaging device. FIG. 7 is an information exchange diagram of a memory chip and an imaging device in which a volatile memory in a memory unit exchanges information directly through an interface unit and an imaging device according to an embodiment of the present invention.

Fig. 8 is a schematic view showing a power supply mode of a memory chip and an image forming apparatus powered by a power storage module in an embodiment of the present invention.

Fig. 9 is a view showing a power supply mode of a memory chip powered by a battery and an image forming apparatus in an embodiment of the present invention.

Fig. 10 is a graph showing changes in internal voltage during discharge of a capacitor in the embodiment of the present invention.

detailed description

Generally, an image forming apparatus such as a printer, a copying machine, a facsimile machine, and the like are all in communication with a memory chip attached to an imaging cartridge, and by detecting data stored in the memory chip, it is determined whether or not an imaging operation is performed using the imaging cartridge or an imaging operation is continued. . At present, the memory chip includes a control unit, a storage unit, and an interface unit, wherein the control unit controls the data parsed in the information output by the imaging device received by the interface unit to be written into the storage unit and the data in the storage unit is read and integrated. The signal is output to the imaging device through the interface unit.

Generally, the memory cells of the memory chip are composed of a non-volatile memory, such as an EEPROM, and the imaging device needs to exchange data with a non-volatile memory in the memory chip. When the imaging device and the memory chip on the imaging cassette exchange data at a high speed, that is, when the frequency of transmitting the changed data exceeds the frequency of the data stored by the EEPROM, the memory chip cannot change the data in time due to the EEPROM as the storage unit. When a data error occurs, when the imaging device reads the data check from the EEPROM of the memory chip, the imaging operation is stopped because the read data is different from the transmitted data or does not match the data rule preset by the imaging device. And an error message is displayed, which affects the user's imaging operation.

Therefore, the embodiment of the present invention provides a memory chip that has both non-volatile and fast data storage. As shown in FIG. 1 , the memory unit of the memory chip includes a non-volatile memory and a volatile memory. The initial information is stored in the volatile memory, and the power storage module saves power when the imaging device supplies power to the memory chip.

Specifically, as shown in FIG. 2, the nonvolatile memory is an EEPROM, the volatile memory is an SRAM, and the power storage module is a capacitor, wherein the EEPROM stores initial information when the imaging device powers up the memory chip for the first time. The control unit in the memory chip controls the data in the EEPROM The memory is transferred to the SRAM, thereby causing the SRAM to communicate with the imaging device, and the capacitance in the memory chip conserves power when the imaging device supplies power to the memory chip. When the imaging device powers down the memory chip, the capacitance in the memory chip supplies power to the entire memory chip, causing the control unit to control the transfer of data in the SRAM to the EEPROM. When the imaging device loses power to the memory chip for a long time, the power in the capacitor has been exhausted, and the data in the SRAM is transferred to the EEPROM before the consumption is completed. When the imaging device powers up the memory chip again, The capacitor re-storage power, the control unit controls to transfer the data in the EEPROM to the SRAM; if the imaging device loses power to the memory chip for a short time, and the memory chip has not completed the data transfer from the SRAM to the EEPROM, then the memory chip While continuing to complete the transfer, the data in the SRAM is continuously used to realize data exchange with the imaging device. In this way, the memory chip can have both non-volatile and fast and correct data storage, and even when the imaging device and the memory chip on the imaging cassette exchange data at high speed, the communication can be maintained normally and all the data sent by the imaging device is intact. The storage enables the imaging device to perform an imaging operation using an imaging cartridge with the memory chip to form an image on the medium.

In the above solution, the volatile memory may also be a DRAM, as shown in FIG. 3. At this time, the memory unit in the memory chip further needs to include a refresh circuit, and when the imaging device powers down the memory chip, the capacitor is further The refresh circuit needs to be powered, so that the refresh circuit can continuously refresh the DRAM to keep the stored data from being lost, so that the data in the DRAM can be correctly and completely transferred to the EEPROM. Of course, the refresh circuit is also powered during the powering of the memory chip by the imaging device.

Of course, the power storage module in the embodiment of the present invention is not limited to a capacitor, and may be another module having a charging and discharging function.

In addition, the embodiment of the present invention further provides a memory chip that has both non-volatile and fast data storage. As shown in FIG. 4, the memory chip includes a control unit, a storage unit, an interface unit, and a battery, wherein the storage unit Consisting of a volatile memory and a non-volatile memory, the battery supplies power to the control unit and the storage unit in the memory chip before the memory chip is burned, so that the data is subsequently burned into the memory chip. The initial information data burned into the volatile memory in the memory chip can be stored therein without being lost.

Specifically, as shown in FIG. 5, the non-volatile memory is an EEPROM, the volatile memory is an SRAM, and the battery is a button battery, and the memory chip is first guided to the button battery and the memory chip during production. An insulating film is placed between the electrodes to prevent the button cells from being electrically connected to the conductive sheets on the chip. Before the chip data is first burned, the insulating film is pulled off, the button cell is electrically connected to the conductive piece on the chip, and the storage unit and the control unit in the memory chip are powered, so that the data is burned into the memory chip. During the process, the initial information data in the SRAM burned into the memory chip can be stored therein without being lost, and the control unit and the storage unit in the memory chip can be continued if the imaging device loses power to the memory chip. jobs.

The imaging device exchanges data with the SRAM in the memory chip attached to the imaging cartridge. When the imaging device powers down the memory chip, the control unit controls to transfer the data in the SRAM to the EEPROM; and when the imaging device is paired with the memory chip At power-up, the control unit controls the transfer of data from the EEPROM to the SRAM. In this way, the memory chip can have both non-volatile and fast data storage, and can maintain normal communication and keep all the data sent by the imaging device intact even when the imaging device and the memory chip on the imaging cassette exchange data at high speed. The storage enables the imaging device to perform an imaging operation using an imaging cartridge with the memory chip to form an image on the medium.

In the above solution, the volatile memory can also be a DRAM, as shown in FIG. 6. At this time, the storage unit in the storage chip also needs to include a refresh circuit, because the battery supplies power to the entire control unit and the storage unit, so that the refresh The circuit can always work, that is, the refresh circuit can keep the DRAM refreshed to keep the stored data from being lost, so that the data in the DRAM can be transferred to the EEPROM correctly and completely. Of course, the refresh circuit is also powered during the powering of the memory chip by the imaging device.

In addition, the communication mode of the control unit and the volatile memory in the embodiment of the present invention may be used in parallel or serially, and the interface unit may communicate by wire or wirelessly. The control unit in the embodiment of the present invention can also control the data in the signal sent by the imaging device to be directly written into the volatile memory through the interface unit of the memory chip through the parsed instruction in the signal transmitted by the imaging device, even in the memory chip. The volatile memory and imaging device directly exchange data through the interface unit, as shown in FIG.

The memory chip in the embodiment of the present invention is not limited to the functional unit included in the above specific embodiment, and may further include other functional units, such as a light emitting unit for causing the printer to determine whether the mounting position of the imaging cartridge is correct, A sensor unit or the like that detects the actual amount of ink in the imaging cartridge.

It should be noted that, in the above embodiments, imaging can be implemented by using a switch module. Switching between the device and the power storage module/battery to supply power to the memory chip, the switch module may be disposed in the control unit, or may be disposed in the memory chip as a separate module, or, of course, may be independently disposed in the Outside the memory chip. Of course, the switch module can be implemented by hardware or by software.

The switch module may be a diode, a triode, or a field effect transistor, etc., as long as the switching function can be realized. The following is a detailed description of the power supply mode using a diode as an example.

As shown in FIG. 8, it is a schematic diagram of a power supply mode of a memory chip and an image forming apparatus powered by a power storage module in the embodiment of the present invention shown in FIG.

The VCC is a power supply end of the imaging device to the memory chip, and is used to supply power to the memory chip and charge the power storage module when the imaging device reads and writes the memory chip, and when the VCC does not supply power to the memory chip, the memory chip The internal storage module discharges power to the memory chip, and continues the operation of transferring information inside the storage unit.

In Fig. 8, for the sake of clarity of illustration, other units other than the diode as the switching module and the capacitor as the power storage module in the memory chip are shown by other units 81.

The diode inside the memory chip is used to switch the power supply of the imaging device and the power supply of the capacitor. When VCC is high, that is, VCC supplies power to the memory chip, the diode is forwarded, thereby supplying power to the memory chip and making the control unit of the memory chip. Transfer the information of the EEPROM in the memory cell to the SRAM or DRAM, and then exchange the information between the SRAM or the DRAM and the imaging device. On the other hand, VCC charges the capacitor of the memory chip; when VCC is low, VCC does not give the chip. When power is supplied, the diode is reversely turned off, and the memory chip is powered by the discharge of the capacitor. At this time, the control unit of the memory chip transfers the information in the SRAM or DRAM of the memory cell to the EEPROM.

It should be noted that, in practical applications, the imaging device may need to install a plurality of color ink cartridges, each of which needs to be mounted with a chip, that is, the imaging device may need to be loaded with a plurality of imaging cartridge chips or conjoined chips, A serial chip refers to a plurality of chips connected together for use on a plurality of ink cartridges. Generally, the connected chips have a shared wafer, a shared sensor, or a respective wafer or sensor. In this case, if each chip is equipped with a diode and a power storage module, when the VCC supplies power to the chip and charges, there may be a shortage of charging voltage. In view of this, it is required for the imaging device. In the case of multiple imaging chip chips or connected chips, these chips can share one diode and one power storage module, because the chip is time-sharing operation, that is, after one chip operation is completed, The outside of a chip operation, so it does not cause confusion. The specific power supply mode is the same as that of the single chip, and will not be described here.

Of course, the above situation can also be regarded as a special example of the memory chip of the embodiment of the present invention. In this embodiment, the memory chip includes a plurality of sets of memory cells and a control unit and an interface unit corresponding to the memory cells. All memory cells are powered by the same power storage module when the imaging device is powered down. Each group of memory cells includes a non-volatile memory and a volatile memory in which initial information is stored, and the volatile memory in each group of memory cells is time-divisionally exchanged with the image forming apparatus.

For the memory chip powered by the battery in the embodiment of the present invention shown in FIG. 4, the battery will remain in the power supply state when the power is sufficient. In actual operation, when the VCC of the imaging device supplies power to the memory chip, the control unit in the memory chip controls the information transfer from the EEPROM to the RAM. In this process, battery power is not required, and the battery only needs to be given in the imaging device. When the memory chip is powered down, the memory chip is powered to complete the transfer of information from the SRAM or DRAM to the EEPROM. If the battery is always powered, it will speed up the battery drain, so you can use the switch module of the chip control unit to switch the power supply.

Specifically, as shown in FIG. 9, is a schematic diagram of a power supply mode of a memory chip and an imaging device powered by a battery in the embodiment of the present invention shown in FIG.

The switch module can be composed of a field effect transistor, preferably a MOS transistor. As shown in Fig. 9, it is a P-type MOS transistor whose control end is connected to the power supply terminal VCC of the imaging device, and the other ends are respectively connected to the power supply end of the battery and the chip. When the imaging device supplies power to the chip, that is, when VCC is high, the MOS transistor is turned off, and the control chip is powered by VCC; when the imaging device powers down the chip, the MOS transistor is turned on, and the battery is powered by the battery. In this embodiment, VCC can also be used as a trigger signal. When the imaging device is powered, the control terminal of the MOS transistor is triggered to turn on the MOS transistor. When the imaging device is powered off, the control terminal of the MOS transistor is triggered to turn off the MOS transistor. Achieve alternating power supply to the battery. Of course, the switch module can also have other implementations, which are not repeated here.

Also, in practical applications, when an imaging device requires the use of a plurality of imaging cartridge chips or a conjoined chip, a plurality of chips may share one battery, or batteries may be used individually, and the switch modules may be used in common or in separate use.

The above situation can also be regarded as a special example of the memory chip of the embodiment of the present invention, in this embodiment. The memory chip includes a plurality of sets of memory cells and a control unit and an interface unit corresponding to the memory cells. All memory cells are powered by the same power storage module when the imaging device is powered down. Each group of storage units includes a non-volatile memory and a volatile memory in which initial information is stored, and the volatile memory in each group of storage units exchanges data with the imaging device in a time-sharing manner.

As mentioned in the foregoing embodiments, in the case where the imaging device powers down the memory chip for a short period of time, at the moment of power failure, the memory chip is still powered by the power storage module or the battery, and performs data transfer of the SRAM or DRAM to the EEPROM. Since the power-down time is short, when the imaging device re-powers the memory chip, the memory chip may not have completed data transfer from SRAM or DRAM to EEPROM. In this case, in order to prevent the incomplete data in the EEPROM from being transferred to the SRAM or DRAM when the imaging device is powered on, causing an error when the imaging device exchanges data with the SRAM or the DRAM, the memory chip needs to continue to be completed at this time. Transfer, while continuing to use the data in the SRAM or DRAM to achieve data exchange with the imaging device.

Specifically, a detecting module may be disposed in the memory chip to detect whether the data transfer in the SRAM or the DRAM to the EEPROM is completed during the power-off of the memory chip by the imaging device, and if not completed, the image device re-sends After the memory chip is powered on, the data transfer process from the EEPROM to the SRAM or DRAM is prohibited. Since the SRAM or DRAM is continuously powered, the data in the SRAM or DRAM is not lost. In this case, the imaging device and the memory chip can be directly used. SRAM or DRAM communication can be done. Of course, the detection module can be disposed in the control unit.

The detecting module can perform the foregoing detecting process in multiple detecting manners, for example:

(1) Through the clock detection mode: set a time threshold T in the control unit, start counting when the data is dumped from RAM to EEPROM, when the data transfer is abrupt (ie, become EEPROM to RAM), stop Timing, it is obtained that the RAM to EEPROM data is transferred to the duration T of the sudden change, and the duration T is compared with the time threshold T. If the threshold is greater than the threshold, the transfer is considered complete. If the threshold value is less than the threshold value, the transfer is not completed, and the image forming apparatus is prevented from transferring the data from the EEPROM to the RAM after the memory chip is powered on. The method can be used for the memory chip of the above-mentioned capacitor power supply mode, and can also be used for the memory chip of the above battery power supply mode.

(2) Through the capacitor power consumption detection mode: Since the capacitor is in a state of continuous discharge when performing data transfer from the RAM to the EEPROM, the capacitor for power supply of the capacitor shown in Fig. 1 can be discharged by a capacitor. Quantity or remaining power to detect RAM to EEPROM data transfer Whether the deposit is completed. As shown in FIG. 10, for the internal voltage change curve of the capacitor when the RAM is dumped to the EEPROM, a voltage threshold is set in the detection module, and the voltage threshold is after the completed data transfer of the internal setting of the memory chip. The amount of voltage inside the capacitor. Assume that the voltage is 3.5V when the capacitor is fully charged. After the data transfer starts, the voltage will also decrease. The voltage threshold is 1.7V at point B as shown in the figure. If the mutation point is C, C The point voltage is 2.0V. When the detection module detects that the voltage has not dropped to 1.7V, it is determined that the data transfer is not completed. If the mutation point is D, the voltage at point D is 1.5V. When the detection unit detects that the voltage drops below 1.7V. When it is determined, the data dump is completed. Of course, this method is only applicable to the memory chip of the above capacitor power supply mode.

The above description is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalents, improvements, etc. made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Rights request

A memory chip on an imaging cartridge for an imaging device, comprising: a control unit, a storage unit, and an interface unit, wherein the control unit controls to write data parsed out from information output by the imaging device received by the interface unit into the storage unit, And reading and integrating the data in the storage unit into a signal outputted to the imaging device through the interface unit, further characterized by: further comprising a power storage module; the storage unit comprises a non-volatile memory and a volatile memory, The non-volatile memory stores initial information, and the volatile memory exchanges data with the imaging device;

2. The memory chip on the imaging cartridge for an imaging device according to claim 1, wherein the control unit controls to write data parsed out from the information output by the imaging device received by the interface unit into the storage unit. The control unit controls the data parsed in the information output by the imaging device to be directly written into the volatile memory through the interface unit.

A memory chip on an image forming cartridge for an image forming apparatus according to claim 2, wherein said volatile memory is an SRAM.

4. The memory chip on the imaging cartridge for an imaging device according to claim 2, wherein the volatile memory is a DRAM, the memory unit further comprising: a refresh circuit, wherein the imaging device powers down the memory chip The power storage module continuously supplies power to the DRAM and the refresh circuit, and the refresh circuit causes the DRAM to continuously refresh to keep its stored data from being lost.

A memory chip on an image forming cartridge for an image forming apparatus according to claim 1, wherein said power storage module is a capacitor.

The memory chip on the imaging cartridge for an image forming apparatus according to any one of claims 1 to 5, further comprising: a switch module, configured to implement switching of the power supply of the memory chip by the imaging device and the power storage module.

7. The memory chip on the imaging cartridge for an imaging device according to claim 6, further comprising: a detecting module, configured to detect the volatile memory to the nonvolatile memory during the powering down of the memory chip by the imaging device Whether the data transfer in the memory is completed, if not completed, the image device re-sends After the memory chip is powered on, the control unit is prohibited from controlling the data transfer process from the non-volatile memory to the volatile memory.

The memory chip on the imaging cartridge for an image forming apparatus according to any one of claims 1 to 5, further comprising: a detecting module, configured to detect the volatility in the process of powering down the memory chip by the imaging device Whether the data dump in the memory to the non-volatile memory is completed. If not, after the imaging device re-powers the memory chip, the control unit is prohibited from controlling the data transfer from the non-volatile memory to the volatile memory. process.

9. A memory chip on an imaging cartridge for an imaging device, comprising: a control unit, a storage unit, and an interface unit, wherein the control unit controls to write data parsed out from information output by the imaging device received by the interface unit into the storage unit, And reading and integrating the data in the storage unit into a signal outputted to the imaging device through the interface unit, wherein the battery further comprises a battery; the storage unit comprises a non-volatile memory and a volatile memory, Loss memory and data device for data exchange;

10. The memory chip on the imaging cartridge for an imaging device according to claim 9, wherein the control unit controls to write data parsed out from the information output by the imaging device received by the interface unit into the storage unit. The control unit controls the data parsed in the information output by the imaging device to be directly written into the volatile memory through the interface unit.

A memory chip on an image forming cartridge for an image forming apparatus according to claim 10, wherein said volatile memory is an SRAM.

12. The memory chip on the imaging cartridge for an imaging device according to claim 10, wherein the volatile memory is a DRAM, the memory unit further comprising: a refresh circuit, wherein the imaging device powers down the memory chip The battery continuously supplies power to the DRAM and the refresh circuit, and the refresh circuit causes the DRAM to continuously refresh to keep its stored data from being lost.

A memory chip on an image forming cartridge for an image forming apparatus according to claim 9, wherein said battery is a button battery.

The memory chip on the imaging cartridge for an image forming apparatus according to any one of claims 9 to 13, further comprising: a switch circuit for implementing cutting of the power supply of the image forming device and the battery Change.

The memory chip on the imaging cartridge for an imaging device according to claim 14, further comprising: a detecting module, configured to detect the volatile memory to the nonvolatile memory during the powering down of the memory chip by the imaging device Whether the data dump in the memory is completed, if not completed, after the imaging device re-powers the memory chip, the control unit is prohibited from controlling the data transfer process of the non-volatile memory to the volatile memory.

The memory chip on the imaging cartridge for an image forming apparatus according to any one of claims 9 to 13, further comprising: a detecting module, configured to detect the volatility in the process of powering down the memory chip by the imaging device Whether the data dump in the memory to the non-volatile memory is completed. If not, after the imaging device re-powers the memory chip, the control unit is prohibited from controlling the data transfer from the non-volatile memory to the volatile memory. process.