WO2011066777A1

WO2011066777A1 - Storage chip for printing device and method of information interaction between chip and printing device

Info

Publication number: WO2011066777A1
Application number: PCT/CN2010/079058
Authority: WO
Inventors: 丁励
Original assignee: 珠海艾派克微电子有限公司
Priority date: 2009-12-02
Filing date: 2010-11-24
Publication date: 2011-06-09
Also published as: CN101734018A; CN101734018B

Abstract

Disclosed are a storage chip for a printing device and a method of information interaction between the chip and the printing device. Multiple variable information are provided in the storage chip mounted on an ink cartridge. The method comprises storing and reading, during printing, corresponding current variable information in the storage chip after one variable information is read out by the printing device; subsequently reading, until the corresponding current variable information indicates that the ink cartridge can not be used, another variable information in the storage chip, then storing and reading the corresponding current variable information in the storage chip; it will not stop until all the variable information provided in the storage chip is read out completely. The method allows the ink cartridge provided with the storage chip to be reused, thus reducing the use cost of the printing device and contributing to environmental protection.

Description

The invention relates to a memory chip of a printing device and a method for interacting with a printing device. The present application claims an information exchange method submitted to the Chinese Patent Office on December 2, 2009, the application number is 200910258326.3, and the invention is entitled "printing device memory chip and printing device". The priority of the Chinese Patent Application, the entire contents of which is incorporated herein by reference.

Technical field

The present invention relates to the field of printing devices, and in particular to a memory chip of a printing device and an information exchange method of the printing device.

Background technique

With the development of imaging technology, imaging devices such as laser printing devices and inkjet printing devices have been widely used. The printing device needs to print information during the printing process. The print information of the printing device is recorded on the memory chip in addition to being recorded in the printing device. As shown in FIG. 1, FIG. 1 is a schematic diagram of communication interaction between the printing device and the memory chip of the prior art. The memory chip is fixed on the ink cartridge, and the ink cartridge may be an ink cartridge filled with ink or a toner cartridge filled with toner. The function of the memory chip is to control the matching of the ink cartridge and the printing device, and provide the printing information during the subsequent printing process. The memory chip and the printing device perform information exchange through a communication interface (not shown) in the memory chip. In the memory chip, print information on the ink cartridge initial information such as the ink cartridge model, color, recording material capacity, date of manufacture, and manufacturer code, and data indicating the capacity of the recording material obtained in the subsequent printing process.

Before using the ink cartridge for the first printing, the printing device determines whether to use the ink cartridge with the memory chip to perform a printing operation by identifying the initial information of the memory chip, that is, identifying the memory chip, and the printing device will initially record the recording material capacity of the memory chip. The data is read out, the first printing of the ink cartridge is performed, and the consumption of the recording material is detected. According to the data of the initial characterizing the recording material capacity and the data of the consumption of the recording material, the current data representing the capacity of the recording material is calculated and Stored in the memory chip.

In the subsequent printing process, the stored data representing the capacity of the recording material is read from the memory chip, printed and the consumption amount of the recording material is detected, and the current data representing the capacity of the recording material is recalculated to determine whether to continue printing, and if , again the current characterization data of the recorded material capacity Stored in the memory chip for use in subsequent printing.

In a specific implementation, the printing device estimates the consumption of the recording material during the printing process. For example, when the inkjet printing device is used, the amount of ink ejected by the ink ejection port is determined to determine the consumption amount of the ink recording material, and then the set recording material is used. The relationship between the consumption amount and the total amount of the recording material is calculated based on the data of the capacity of the recording material read from the memory chip and the data of the consumption of the recorded recording material, and the current data representing the capacity of the recording material is calculated and transmitted to The memory chip is saved. When the printing device performs the printing operation, the stored data representing the capacity of the recording material is read out from the memory chip, and when the remaining amount of the recording material is determined according to the data recorded by the current characterization recording material, the user is reminded to replace the storage. The ink cartridge of the chip or stop the printing process.

At present, the memory chip in the ink cartridge is "disposable" in use, that is, the recording material supplied from the ink cartridge is determined according to the data of the capacity of the recording material stored in the memory chip and the data of the consumption of the currently recorded recording material. After the device has been exhausted, the printing device can no longer use the memory chip to exchange printing information, and a new ink cartridge with a new memory chip must be replaced. Even if the recording material of the original ink cartridge can be refilled, the original memory chip cannot be used for storage. The current amount of the recording material capacity (the data characterization of the recording material capacity stored in the memory chip has indicated that the recording material has insufficient capacity and cannot be modified, and the printing apparatus cannot read after reading). Thus, the user cannot fill the used ink cartridge with the recording material, and the recording material of the ink cartridge must be discarded after it is exhausted, which increases the cost of the user using the printing device and pollutes the environment.

In addition, in addition to the stored data representing the capacity of the recording material in the memory chip of the ink cartridge as a change in the printing process, there are other information such as the number of times of printing. The printing device also reads and stores these changes from the memory chip during printing. If the printing device verifies that the current reading will change the information incorrectly, it will stop printing. Therefore, since these will change the existence of information, the memory chip is "one-off" when it is used. This increases the cost of the user using the printing device and pollutes the environment.

Summary of the invention

In view of the above, the present invention provides a printing device memory chip capable of reusing an ink cartridge having the memory chip, reducing the cost of the user using the printing device and facilitating environmental protection. The invention also provides a method for information exchange between a memory chip and a printing device, which can repeatedly use the ink cartridge having the memory chip, which reduces the cost of the user using the printing device and is environmentally friendly.

To achieve the above objective, the technical solution of the embodiment of the present invention is specifically implemented as follows:

A memory chip of a printing device, comprising: a communication interface, a control unit, a switch selection unit, and a plurality of storage units, wherein

a plurality of storage units for respectively storing the change information, and after the selection of the switch selection unit, one of the storage units supplies the stored change information to the printing device through the communication interface under the control of the control unit, in the printing process Current changes in the information store and read;

a switch selection unit, configured to select one of the plurality of storage units;

And a control unit, configured to control the selected one of the storage units to perform information interaction through the communication interface and the printing device.

The switch selection unit is integrated in the control unit or is set separately.

The switch selection unit uses a carbon film resistor or a jumper.

The plurality of storage units are further configured to store unchanged information respectively. After the selection of the switch selection unit, in the printing process, one of the storage units provides the stored non-changing information through the communication interface under the control of the control unit. Giving a printing device;

Alternatively, the control unit may store the non-changing information, and during the printing process, the stored non-changing information is supplied to the printing device via the communication interface under the control of the control unit.

The change information is data that characterizes the capacity of the recording material.

A memory chip of a printing device, comprising: a communication interface, a switch selection unit, and a plurality of chip cores, wherein

The chip cores are used for respectively storing the change information. After the selection of the switch selection unit, one of the chip cores supplies the stored change information to the printing device through the communication interface, and the current change information storage is performed during the printing process. And read.

The chip core is composed of a corresponding storage unit and a control unit, wherein

a storage unit for storing information that changes information, and is controlled by a communication interface under the control of the control unit The stored change information is provided to the printing device, and the current change information storage and reading is performed during the printing process;

The control unit is configured to, after being selected by the switch selection unit, control the corresponding chip core to perform information interaction through the communication interface and the printing device.

The storage unit further stores non-changing information for providing the stored non-changing information to the printing device through the communication interface under the control of the control unit during the printing process;

Or the control unit further stores no change information for providing the stored non-change information to the printing device through the communication interface under the control of the control unit during the printing process.

A memory chip of a printing device, a main storage unit, a spare storage unit, a switch selection unit, a control unit, and a communication interface, wherein

a switch selection unit for selecting an interaction between the primary storage unit and the spare storage unit to change information, or selecting an active storage unit to exchange information between the communication interface and the printing device under the control of the control unit;

The main storage unit is configured to store the change information, and the stored change information is provided to the printing device through the communication interface under the control of the control unit, and the current change information storage and reading is performed during the printing process; Uploading the changed information in the backup storage unit under the selection of the selection unit;

The backup storage unit is configured to store the changed information of the backup, and upload the initial change information of the backup to the primary storage unit under the selection of the switch selection unit.

The main storage unit further stores non-changing information for providing the stored non-changing information to the printing device through the communication interface under the control of the control unit during the printing process;

Alternatively, the spare storage unit further stores the non-changing information of the backup, and uploads the backup non-changing information to the main storage unit under the selection of the switch selection unit, and the main storage unit is in the printing process, in the control unit The stored non-changing information is provided to the printing device via the communication interface under control.

A memory chip of a printing device, a main storage unit, a spare storage unit, a switch selection unit, a control unit, and a communication interface, wherein a switch selection unit, configured to select a temporary change information obtained from the backup storage unit to the backup, and then provide the information to the primary storage unit; or select the primary storage unit to pass between the communication interface and the printing device under the control of the control unit Information exchange;

The main storage unit is configured to store the change information, and the stored change information is provided to the printing device through the communication interface under the control of the control unit, and the current change information storage and reading is performed during the printing process; Under the selection of the selection unit, the change information of the backup temporarily stored by the switch selection unit is uploaded;

The spare storage unit is configured to store the changed information of the backup, and the initial change information of the backup is temporarily stored in the switch selection unit under the selection of the switch selection unit.

Alternatively, the spare storage unit further stores the non-changing information of the backup, and temporarily stores the backup non-changing information in the switch selection unit under the selection of the switch selection unit, and the switch selection unit selects to temporarily acquire the temporarily stored storage unit from the spare storage unit. The backup does not change the information and is provided to the main storage unit. The main storage unit provides the stored non-changing information to the printing device through the communication interface under the control of the control unit during the printing process.

A method for information exchange between a memory chip and a printing device, wherein a plurality of information is changed on a memory chip in the ink cartridge, the method comprising:

During the printing process, after the printing device reads out a change information, the corresponding current change information is stored and read in the memory chip; until the corresponding current change information indicates that the ink cartridge is unavailable, the memory chip is read again. The other will change the information, the corresponding current will change the information stored and read in the memory chip; until the memory chip settings all the changes will be read.

The corresponding information is changed, and the information is not changed. After the printing device reads the change information, the method further includes:

The printing device reads the no change information, and identifies the non-change information and the change information. The manner in which multiple settings change information is:

Multiple change information is set in different storage units; Or pre-storage of the primary and backup will change the information, when the primary use will change the information used, and then update the alternate change information for the primary use will change the information.

As can be seen from the above technical solution, the present invention proposes to provide a plurality of change information and corresponding non-change information in a memory chip provided in the ink cartridge, the change information indicating information that the plurality of ink cartridges interact with the printing device during the printing process, Each time information is exchanged, the information is changed, including the data characterizing the recording material capacity and the number of prints, etc., which may change the information to be the same or different. This does not change the information and the information does not change during the printing process. In the printing process, after the printing device recognizes the memory chip without changing the information and changes the information, the corresponding change information is read, and then the corresponding current change information is stored and read in the memory chip until the corresponding The current change information indicates that the ink cartridge cannot be used, and another one that uses the memory chip changes the information to perform the above processing until all the change information set by the memory chip is used up. Thus, the present invention can reuse the ink cartridge having the memory chip, reducing the cost of the user using the printing device and facilitating environmental protection.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic diagram of communication interaction between a printing device and a memory chip of the prior art;

2 is a flow chart of a method for information exchange between a memory chip and a printing device according to the present invention; FIG. 3 is a schematic structural diagram of a memory device for implementing a printing device according to the present invention;

4 is a structural diagram of a specific embodiment of a memory device of a printing device provided by the present invention; FIG. 5 is a flow chart of a method for implementing a memory chip of a printing device according to the present invention;

FIG. 6 is a schematic diagram of a structure 2 of a memory device for a printing device provided by the present invention; FIG. 7 is a schematic diagram of a second structure of a memory device for a printing device provided by the present invention; FIG. Detailed structural diagram of a specific embodiment; FIG. 9 is a schematic diagram of a third structure of a memory device for a printing device according to the present invention; FIG. 10 is a schematic diagram of a third structure of a memory device for a printing device according to the present invention.

detailed description

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.

In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail below with reference to the accompanying drawings.

The reason why the prior art ink cartridge cannot be reused is that the data characterization of the recording material capacity stored in the memory chip cannot be artificially modified. The data characterization of the capacity of the recording material stored in the memory chip can only be the data indicating the capacity of the recording material read from the memory chip and the data of the consumption of the recorded recording material detected by the printing device during the printing process. , the calculated current data characterizing the recorded material capacity. The current recording material capacity indicative of the recording material capacity is gradually reduced until the indicated recording material capacity is insufficient, and the printing apparatus confirms that the recording material having the storage chip has insufficient recording material capacity (even if the recording material capacity of the ink cartridge is insufficient) After sufficient, the printing device also confirms), stop printing and remind the user to replace.

In addition, as the information other than the data characterization of the recording material capacity, the information may be changed, and the ink cartridge may not be reused, because the change information stored in the memory chip cannot be artificially modified. Therefore, during the printing process, if the change information read by the printing device indicates that the ink cartridge is not available, the printing is stopped and the user is prompted to replace.

Therefore, in order to overcome this problem, the present invention proposes to provide a plurality of change information and corresponding non-change information in a memory chip provided in the ink cartridge, the change information indicating information on interaction between the plurality of ink cartridges and the printing device during printing. Each time information is exchanged, the information is changed, including data representing the capacity of the recording material and the number of times of printing, etc., and the plurality of changes may be the same or different. This does not change the information and the information does not change during the printing process. In the printing process, after the printing device recognizes the memory chip without changing the information and changes the information, after reading the corresponding change information, the corresponding device performs corresponding The current change information is stored and read in the memory chip until the corresponding current change information indicates that the ink cartridge cannot be used, and then another memory chip is used to change the information for the above processing until all the settings of the memory chip are set. The change information is used up.

Thus, the ink cartridge having the memory chip provided by the present invention can be filled with the recording material a plurality of times and used multiple times.

In the present invention, when a plurality of change information is set in the memory chip, a plurality of corresponding non-change information are also set, and each change information and corresponding non-change information are used as initial information of the ink cartridge, and the relevant ink cartridge model is recorded. The color, the recording material capacity, the production date, the manufacturer code, and the like are used by the printing apparatus to identify the memory chip by the non-changing information and the change information, and determine whether to use the ink cartridge having the memory chip for the printing operation.

In addition, in the prior art, in order to attract users, the ink cartridge supplier has introduced a plurality of ink cartridges of high-capacity recording materials, that is, the filled recording material is higher than the standard indicated by the data of the initial characterization recording material capacity set by the memory chip. The material capacity is recorded so that the user can print more and reduce the cost of using the printing device. However, since the memory chip of the ink cartridge is provided by the printing device provider, the data of the initial characterizing the recording material capacity stored therein indicates the standard recording material capacity, so even if the ink cartridge still has the recording material during the printing process, it is stored. The data stored in the chip characterizing the recording material indicates that the remaining amount of the recording material is insufficient to stop printing, and the user is reminded to replace the ink cartridge. This is why the ink cartridge provider is not able to attract users, and it also causes waste of recorded materials, which is not conducive to environmental protection.

The present invention can also overcome the above problems, as long as the data on the memory chip that changes the capacity of the initial characterizing recording material in the information is set, the data represents the actual recording material capacity of the ink cartridge, so that the recording material is not caused. Waste, good for the environment.

For the purpose of brief description, the present invention provides a detailed description of the method, system, and apparatus provided by the present invention by taking data representing the capacity of the recording material as the change information.

2 is a flow chart of a method for information exchange between a memory chip and a printing device according to the present invention. A plurality of data for initial characterizing recording material capacity and corresponding non-changing information are set on a memory chip of the ink cartridge, and the specific steps are as follows:

Step 201: After the printing device reads the set data of the initial characterizing the recording material capacity, Performing corresponding current characterization of the recording material capacity data during storage and storage in the memory chip;

Before the step, the printing device also reads corresponding non-change information for identifying the memory chip together with the change information;

Step 202, the printing device determines in real time whether the data of the current characterization recording material capacity read from the memory chip indicates that the recording material capacity is insufficient, and if so, step 203 is performed; if not, step 204 is performed;

In this step, how to judge the prior art is not described here.

Step 203: After the printing device reads the set data of another initial characterization of the recording material capacity, the corresponding current data representing the recording material capacity is stored and read in the storage chip during the printing process, and the process proceeds to step 202. Until all the data of the initial characterization recording material capacity set are read;

Step 204; Go to step 202 to continue printing and judging.

In the method, storing a plurality of data for initially characterizing the capacity of the recording material may be performed in various manners, such as: storing a plurality of data representing the capacity of the recording material separately in different storage units; or storing an initial characterizing record of the main used The data of the material capacity is used to update the data of the initial characterization recording material capacity of the primary using the data of the initial initial characterization recording material capacity after the initial data of the primary characterization recording material capacity is used.

In the specific implementation of the present invention, three implementation manners are adopted, which are described below in detail. In a first mode, a control unit and a plurality of storage units are disposed in the storage chip, and different storage units store different or identical data of initial characterization of the recording material capacity, and the control unit is configured to control the interaction between the printing device and the plurality of storage units. Data characterizing the capacity of the recorded material and current data characterizing the capacity of the recorded material.

In this manner, there is also a switch selection unit between the control unit and the plurality of storage units, integrated in the control unit or independently provided for selecting and printing the information under the control of the control unit. Interactive storage unit.

3 is a schematic structural diagram of an implementation manner of a memory device for a printing device according to the present invention, comprising: a communication interface, a control unit, a switch selection unit, and a plurality of storage units, which are represented as a storage unit 1, a storage unit 2, and a storage unit n in the figure. , among them,

a plurality of storage units for respectively storing initial data indicating the capacity of the recording material, and after the selection of the switch selection unit, one of the storage units stores the stored capacity of the initial characterization recording material through the communication interface under the control of the control unit The data is provided to the printing device, and the current data storage and reading of the characterization recording material capacity is performed during the printing process;

In this embodiment, the plurality of storage units are further configured to store unchanged information respectively. After the selection of the switch selection unit, in the printing process, one of the storage units is controlled by the communication interface under the control of the control unit. The stored non-changing information is provided to the printing device;

Specifically, at the start of the printing operation, the switch selection unit selects the storage unit 1, that is, the control unit controls the storage unit 1 to interact with the printing device information through the communication interface; when the data representation of the current characterizing the recording material capacity stored in the storage unit 1 When the recording material capacity is insufficient, the switch selection unit selects the storage unit 2, that is, the control unit controls the storage unit 2 to interact with the printing device information through the communication interface, and so on, until the data of the current characterizing the recording material capacity stored by all the storage units is Indicates that the recording material capacity is insufficient.

In this embodiment, the data of the initial characterizing the recording material capacity stored by the different memory cells may be the same or different, so that the data of the different initial characterizing recording material capacities of the memory chips may be recognized by the printing device.

In this embodiment, the storage unit not only stores the initial data characterizing the recording material capacity, but also stores non-change information such as other ink cartridge initial information for the printing device to identify the storage unit. After that, print the operation again.

4 is a structural diagram of a specific embodiment of a memory device for a printing device according to the present invention. In the figure, the switch selection unit is implemented by using a carbon film resistor R1, and the control unit is serially connected through interface A and interface B through a programming interface. Programming the control unit, providing initial information of each ink cartridge to each storage chip through the control unit, and providing power to the control unit by the power conversion unit, and the power conversion unit obtains the voltage signal from the printing device through the communication interface, and then converts and supplies the power to the control unit. The power supply of the control unit, the storage unit includes a memory 1 and a memory 2.

Wherein, when the memory chip is in operation, the interface A is set to a high level, and when the control unit detects that the interface B is at a high level, the control unit controls the memory 1 to store the data representing the capacity of the recording material through the communication interface and the printing device. , causing the printing device to perform a printing operation. When the current data representing the capacity of the recording material stored in the memory 1 indicates that the recording material is insufficient, the carbon film resistor R1 is scraped off. At this time, the control unit detects that the interface B is at a low level, and the control unit controls the memory 2 to exchange the stored data representing the capacity of the recording material through the communication interface and the printing device, so that the printing device continues to use the ink cartridge having the memory chip for the printing operation. . The data until the current characterizing the recording material capacity stored in the memory 2 indicates that the recording material is insufficient.

In this embodiment, the power conversion unit not only supplies power to the control unit, but also supplies power to other units in the memory chip, such as the memory unit, which is not shown in FIG.

FIG. 5 is a flow chart of a method for implementing a memory chip of a printing device according to an embodiment of the present invention. The specific steps are as follows:

Step 501: Set the A interface of the controller of the memory chip to a high level;

Step 502, the controller determines whether the B interface is high, if yes, then proceeds to step 503; if not, then proceeds to step 504;

If the B interface is high, the carbon film resistor R1 is not scraped. If the B interface is low, the carbon film resistor R1 is scraped.

Step 503, the controller enables the memory 1, and proceeds to step 505;

Step 504, the controller enables the memory 2, proceeds to step 505;

Step 505: The memory controlled by the memory control interacts with the printing device through the communication interface. The stored data characterizing the recording material capacity causes the printing device to perform a printing operation.

In the second mode, a switch selection unit and a plurality of chip cores are disposed in the memory chip, each chip core stores data that initially represents the capacity of the recording material, and a switch selection unit is configured to select an initial cross between the chip core and the printing device after selecting the chip core. The characterization characterizes the data of the material capacity and the current data characterizing the recording material capacity.

In this embodiment, each chip core is composed of a storage unit for storing data which initially characterizes the capacity of the recording material, and a control unit for controlling information interaction between the storage unit and the printing device.

In this manner, since the memory chip is used in one printing device, the control processes in all the control units are the same, but the data of the initial characterizing the recording material capacity stored by the different memory cells may be the same or different.

FIG. 6 is a schematic diagram of a second implementation structure of a memory device for a printing device according to the present invention, comprising: a communication interface, a switch selection unit, and a corresponding plurality of storage units and control units, wherein the corresponding storage unit and control unit are referred to as a A group storage unit and a control unit, which are represented in the figure as a storage unit 1 and a control unit 1, a storage unit 2 and a control unit 2, a storage unit n and a control unit n, wherein the switch selection unit is configured to select a corresponding group of storage units And control unit;

a plurality of storage units for respectively storing initial data indicating the capacity of the recording material, and after the selection of the switch selection unit, one of the storage units records the stored initial characterization record through the communication interface under the control of the corresponding control unit The data of the material capacity is provided to the printing device, and the current data storage and reading of the capacity of the recording material are performed during the printing process;

The control unit is configured to, after being selected by the switch selection unit, control the corresponding storage unit to perform information interaction through the communication interface and the printing device.

In a specific implementation, a set of corresponding storage units and control units may be integrated as a chip core and selected by the switch selection unit, as shown in FIG.

In this embodiment, the storage unit further stores non-change information for providing the stored non-changing information to the printing device through the communication interface under the control of the control unit during the printing process; or The control unit also stores no change information for use in the printing process, in the control list The stored non-changing information is supplied to the printing apparatus through the communication interface under the control of the element. FIG. 8 is a schematic structural diagram of a second embodiment of a memory device for implementing a memory device according to the present invention, wherein the chip core 1 and the chip core 2 are two chip cores, and the common signals of the chip core 1, the chip core 2, and the switch selection unit are input through The output (I/O) interface, ground (GND) interface, and power supply (VCC) interface are provided. The switch selection unit is composed of a controller and a switch K1 and a switch K2. The switch K2 is respectively connected to the chip core 1 and the chip core 2 away from the two end points of the controller, and the controller in the switch selection unit controls the switch according to the switch state of the switch K1. K2 is selected, and the switch K1 is controlled by the user through a carbon film, a jumper, and the like.

When the memory chip is in operation, after the switch K1 is closed, the controller adjusts the switch K2 by detecting the on/off condition of the switch K1, and the switch K2 is connected to the end point of the access chip core 2, so that the chip core 2 passes through the communication interface and the printing device. The stored data characterizing the recording material capacity is interactively caused to cause the printing device to perform a printing operation. When the current data of the capacity of the recording material stored in the memory unit of the chip core 2 indicates that the recording material is insufficient, the switch K1 is turned off, and the controller adjusts the switch K2, the switch K2 and the access chip by detecting the on/off condition of the switch K1. The endpoints of the core 1 are connected such that the chip core 1 interacts with the printing device to store data indicative of the capacity of the recording material, so that the printing device continues to use the ink cartridge having the memory chip for printing operations. The data of the current characterizing the recording material capacity stored in the memory chip of the chip core 1 indicates that the recording material is insufficient.

In this embodiment, whether the chip core 1 and the chip core 2 are in information exchange with the controller is controlled by the clock (CLK) signal line as the switch K2.

In the third mode, the control unit and the primary and secondary storage units are set in the storage chip, and the backup storage unit backs up the initial data of the capacity of the recording material, and the current capacity of the recording material stored after the primary storage unit interacts with the printing device. When the data indicates that the recording material is insufficient, after the switch selection unit selects, the controller in the switch selection unit controls the backup storage unit to upload the data of the original initial recording recording material capacity to the main storage unit, and then the main storage unit. Continue to exchange information with the printing device.

In the upload process, there are two ways. One is that the controller controls the direct upload between the primary storage unit and the backup storage unit, and the other is the indirect upload, which is described in detail below.

FIG. 9 is a schematic diagram of a third structure of a memory device for implementing a printing device according to the present invention, including: a primary storage unit, a spare storage unit, a switch selection unit, a control unit, and a communication interface, wherein the switch selection unit is configured to select an initial interaction between the primary storage unit and the spare storage unit to characterize the data of the recording material capacity, Or selecting the main storage unit to exchange information between the communication interface and the printing device under the control of the control unit;

The main storage unit is configured to store initial data indicating the capacity of the recording material, and provide the stored data of the initial characterizing the recording material capacity to the printing device through the communication interface under the control of the control unit, and perform current in the printing process. Characterizing data storage and reading of the recording material capacity; uploading data of the initial characterizing recording material capacity backed up in the spare memory unit by the controller in the switch selecting unit under the selection of the switch selecting unit;

An alternate storage unit, configured to store data of the initial characterization record material capacity of the backup, and upload, by the controller in the switch selection unit, the data of the initial characterization record material capacity of the backup to the main storage unit under the selection of the switch selection unit in.

When the memory chip is in operation, the control unit controls the main memory unit to interact with the printing device to store data indicative of the capacity of the recording material through the communication interface, so that the printing device performs a printing operation. When the current data representing the capacity of the recording material stored in the main storage unit indicates that the recording material is insufficient, after manually controlling the switch selection unit to perform circuit selection, the controller in the switch selection unit controls the initial representation of the backup storage unit to be backed up. The data of the recording material capacity is uploaded to the main standby storage unit, and then after the circuit selection is performed, the control unit controls the data of the recording material capacity stored by the main storage unit through the communication interface and the printing device.

In this configuration, the switch selection unit can also be implemented in the control unit.

In this configuration, the main storage unit further stores non-changing information for providing the stored non-changing information to the printing device through the communication interface under the control of the control unit during the printing process; or, standby The storage unit further stores the non-changing information of the backup, and uploads the non-changing information of the backup to the main storage unit under the selection of the switch selection unit, and the main storage unit passes the control of the control unit during the printing process. The communication interface provides the stored non-changing information to the printing device.

FIG. 10 is a schematic diagram of the third structure of the third embodiment of the memory device of the printing device provided by the present invention, including: a main storage unit, a spare storage unit, a switch selection unit, a control unit, and a communication interface, wherein the switch selection unit is configured to temporarily store data of the initial characterization record material capacity obtained from the backup storage unit to be backed up, and then provide the data to the main Using a storage unit; or selecting an active storage unit to exchange information between the communication interface and the printing device under the control of the control unit;

The main storage unit is configured to store initial data indicating the capacity of the recording material, and provide the stored data of the initial characterizing the recording material capacity to the printing device through the communication interface under the control of the control unit, and perform current in the printing process. Characterizing data storage and reading of the recording material capacity; controlling, by the controller in the switch selection unit, the data of the initial characterization recording material capacity of the backup temporarily stored by the switch selection unit;

The spare storage unit is configured to store the initial data of the backup recording material capacity of the backup, and the controller in the switch selection unit controls the data of the initial characterization recording material capacity of the backup to be selected by the switch under the selection of the switch selection unit. In the unit.

In this configuration, the switch selection unit further has an intermediate temporary storage unit for temporarily storing the data of the initial characterization recording material capacity of the backup.

When the memory chip is in operation, the controller controls the main memory unit to interact with the printing device to store data indicative of the capacity of the recording material through the communication interface, so that the printing device performs a printing operation. When the current data representing the capacity of the recording material stored in the main storage unit indicates that the recording material is insufficient, the switch selection unit is manually controlled to perform circuit selection, and the backup storage unit backs up the data of the initial characterizing the recording material capacity through the switch selection unit. After the controller is transferred to the main standby storage unit, and then the circuit selection is performed, the controller controls the main storage unit to exchange the stored data representing the capacity of the recording material through the communication interface and the printing device.

In this configuration, the main storage unit further stores non-changing information for providing the stored non-changing information to the printing device through the communication interface under the control of the control unit during the printing process; or, standby The storage unit further stores the non-changing information of the backup, and temporarily stores the backup non-changing information in the switch selection unit under the selection of the switch selection unit, and the switch selection unit selects the temporary storage from the backup storage unit to the backup. Will change the information and provide it to the main storage unit. The storage unit supplies the stored non-change information to the printing device through the communication interface under the control of the control unit during the printing process.

In the structures of FIG. 9 and FIG. 10, the initial characterization recording material capacity stored in the spare memory unit is supplied to the main memory unit by the control of the controller in the switch selecting unit, and the switch selection is not shown in the figure. The controller in the unit.

In the above three modes, the switch selection unit is used, and there may be multiple switches in the switch selection unit for implementing switching of a plurality of different storage units. In the switch selection unit, a carbon film resistor or a jumper can be used. When a carbon film resistor is used, a plurality of carbon film resistors can be used to switch between a plurality of different memory cells in series or in parallel.

The communication interface described in the present invention may be contact or non-contact.

The present invention has been described in detail with reference to the preferred embodiments of the present invention. All modifications, equivalent substitutions and improvements made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Rights request

2. The memory chip according to claim 1, wherein the switch selection unit is integrated in the control unit or separately provided.

The memory chip according to claim 1 or 2, wherein the switch selection unit uses a carbon film resistor or a jumper.

4. The memory chip of claim 1 wherein:

The plurality of storage units are further configured to store unchanged information respectively. After the selection of the switch selection unit, in the printing process, one of the storage units provides the stored non-changing information through the communication interface under the control of the control unit. To the printing device; or,

The control unit also stores no change information, and the stored non-change information is supplied to the printing apparatus through the communication interface under the control of the control unit during the printing process.

The memory chip according to claim 1, wherein said change information is data indicative of a capacity of a recording material.

7. The memory chip of claim 6, wherein the chip core comprises - corresponding Storage unit and control unit, wherein

a storage unit, configured to store the change information, and provide the stored change information to the printing device through the communication interface under the control of the control unit, and perform current change information storage and reading during the printing process;

8. The memory chip of claim 7, wherein

The storage unit further stores non-changing information for providing the stored non-changing information to the printing device through the communication interface under the control of the control unit during the printing process; or

The control unit further stores no change information for providing the stored non-change information to the printing device through the communication interface under the control of the control unit during the printing process.

A memory chip for a printing device, comprising: a main memory unit, a spare memory unit, a switch selecting unit, a control unit, and a communication interface, wherein

10. The memory chip of claim 9 wherein:

The main storage unit further stores non-changing information for providing the stored non-changing information to the printing device through the communication interface under the control of the control unit during the printing process; or the spare storage unit, The backup does not change the information, and the backup non-changing information is uploaded to the main storage unit under the selection of the switch selection unit, and the main storage unit is in the printing process. The stored non-changing information is provided to the printing device through the communication interface under the control of the control unit.

a switch selection unit, configured to select a temporary change information obtained from the backup storage unit to the backup, and then provide the information to the primary storage unit; or select the primary storage unit to pass between the communication interface and the printing device under the control of the control unit Information exchange;

12. The memory chip of claim 11 wherein:

The main storage unit further stores non-changing information for providing the stored non-changing information to the printing device through the communication interface under the control of the control unit during the printing process; or the spare storage unit, The backup does not change the information, and the backup non-change information is temporarily stored in the switch selection unit under the selection of the switch selection unit, and the switch selection unit selects the temporary storage from the backup storage unit to the backup without changing the information. Provided to the main storage unit, the main storage unit provides the stored non-change information to the printing device through the communication interface under the control of the control unit during the printing process.

13. A method of information exchange between a memory chip and a printing device, wherein a plurality of information is changed on a memory chip in the ink cartridge, the method comprising:

The method according to claim 13, wherein the corresponding information is changed, and the information is not changed. After the printing device reads the change information, the method further includes:

The printing device reads the no change information, and identifies the non-change information and the change information.

15. The method according to claim 13, wherein the setting of the plurality of information that changes information is:

Multiple change information is set in different storage units;

Or pre-store the change information of the main standby, when the main use changes the information, and then replace the standby change information with the main change information.