阅读说明：本技术 消耗品 (Consumable product ) 是由 砂川宽行 于 2020-02-13 设计创作，主要内容包括：本发明提供一种提高正品的识别精度的消耗品。墨盒(消耗品的一例)(100)安装于印刷装置(1),该墨盒(100)具备显示部(123)以及进行该(123)的显示控制的微型计算机(显示控制部的一例)(122)。在印刷装置(1)对墨盒(100)进行认证时,该微型计算机(122)使显示部(123)显示显示图像(认证用图像的一例)(IM1)。(The invention provides a consumable product capable of improving the recognition accuracy of a genuine product. An ink cartridge (an example of a consumable part) (100) is mounted on a printing apparatus (1), and the ink cartridge (100) is provided with a display unit (123) and a microcomputer (an example of a display control unit) (122) that controls the display of the display unit (123). When the printing apparatus (1) authenticates the ink cartridge (100), the microcomputer (122) causes the display unit (123) to display a display image (an example of an authentication image) (IM 1).)

1. A consumable mounted on a printing device, the consumable comprising:

a display unit; and

a display control unit that performs display control of the display unit,

wherein the display control unit causes the display unit to display an authentication image when the printing apparatus authenticates the consumable part.

2. The consumable of claim 1,

the display portion is electronic paper.

3. The consumable of claim 1 or 2,

the display control unit causes the display unit to selectively display at least one of a plurality of images including the authentication image and a user-oriented image.

4. The consumable of claim 3,

the user-oriented image includes an image for charging information of the consumable.

Technical Field

The present invention relates to a consumable mounted on a printing apparatus.

Background

In the printing apparatus, consumables such as an ink cartridge, a toner cartridge, a photosensitive drum, and stencil paper are mounted according to the printing method.

For example, an ink jet printing apparatus is provided with a plurality of ink cartridges that store ink for each color as a consumable product and are detachably mounted. In an inkjet printing apparatus, ink is supplied from an ink cartridge to an inkjet head, and the ink is ejected from a nozzle of the inkjet head toward printing paper, thereby printing images, characters, and the like.

When an inappropriate ink cartridge is mounted on an inkjet printing apparatus and used, for example, the ink aggregates, and the aggregated ink blocks nozzles to cause ejection failure, or the ink landing on paper spreads to cause edge failure of an image. These problems cause a reduction in the quality of the printed image. In addition, there are also the following cases: when the ink is coagulated, each device in the apparatus receives an excessive load, which causes a failure of the apparatus.

In view of the above, an authentication device has been proposed which performs authorization authentication of a consumable using image information obtained by imaging the consumable in addition to information stored in a memory of the consumable (see, for example, patent document 1).

Disclosure of Invention

Problems to be solved by the invention

However, when authentication is performed using image information obtained by imaging a consumable part as described above, the accuracy of identifying a genuine product is low because the image information can be modeled on the imaged part of the consumable part.

When the accuracy of identifying a genuine product is low as described above, the user cannot be notified that the consumable part is a non-genuine product, and an inappropriate consumable part may be used. The use of such an inappropriate consumable product causes a reduction in the quality of a printed image and a malfunction of the printing apparatus.

The invention aims to provide a consumable product capable of improving the identification precision of a genuine product.

Means for solving the problems

In one aspect, a consumable part is attached to a printing apparatus, the consumable part includes a display unit and a display control unit that performs display control of the display unit, and the display control unit causes the display unit to display an authentication image when the printing apparatus authenticates the consumable part.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the above aspect, the recognition accuracy of the genuine product can be improved.

Drawings

Fig. 1 is an explanatory view for explaining an ink cartridge and a printing apparatus in the embodiment.

Fig. 2 is a perspective view showing an ink cartridge in the embodiment.

Fig. 3A is a front view showing a control module in the embodiment.

Fig. 3B is a right side view showing a control module in the embodiment.

Fig. 4 is a perspective view showing an ink cartridge in a modification.

Fig. 5 is a view of the ink cartridge in a modification of fig. 4 viewed from the direction V.

Fig. 6A is a diagram (1) showing an example of a display image of the display unit in the embodiment.

Fig. 6B is a diagram (2) showing an example of a display image of the display unit in the embodiment.

Fig. 6C is a diagram (fig. 3) showing an example of a display image of the display unit in the embodiment.

Fig. 6D is a diagram (4) showing an example of a display image of the display unit in the embodiment.

Fig. 7 is an explanatory diagram for explaining activation using an image for charging information in the embodiment.

Description of the reference numerals

1: a printing device; 10: a control unit; 11: a first alignment section; 12: an image matching unit; 13: a password generation unit; 14: an authentication unit; 15: a display control unit; 20: a storage unit; 30: a camera communication module; 31: a wireless communication unit; 32(32K, 32C, 32M, 32Y): an image pickup unit; 40: a display unit; 50: an interface section; 100(100K, 100C, 100M, 100Y): an ink cartridge; 110: an ink bottle; 120: a control module; 121: a non-contact IC; 121 a: a memory; 121 b: a processing unit; 122: a microcomputer; 123: a display unit; 124: an environmental sensor; 125: a battery; 126: a substrate; 200: an ink cartridge; 300: a user terminal; 310: a control unit; 320: a storage unit; 330: an image pickup unit; 340: an interface section; 400: a server device; 410: a control unit; 420: a storage unit; 430: an interface section; IM 1: displaying an image (two-dimensional code image); IM 2: displaying an image; IM2 a: a two-dimensional code image; IM2 b: a trademark image; IM 3: displaying an image; IM3 a: a model image; IM3 b: a trademark image; IM 4: displaying an image; IM4 a: a model image; IM4 b: a residual image; IM 5: display images (notification images); n: a network.

Detailed Description

A consumable according to an embodiment of the present invention will be described below with reference to the drawings.

In the present embodiment, the ink cartridges 100K, 100C, 100M, and 100Y corresponding to inks K (black), C (cyan), M (magenta), and Y (yellow) are examples of consumables to be attached to the printing apparatus 1. The ink cartridges 100K, 100C, 100M, and 100Y are appropriately referred to as ink cartridges 100.

Fig. 1 is an explanatory view for explaining an ink cartridge 100 and a printing apparatus 1.

As shown in fig. 1, the printing apparatus 1 includes a control unit 10, a storage unit 20, an imaging communication module 30, a display unit 40, and an interface unit 50, and performs authentication as to whether or not each of the ink cartridges 100K, 100C, 100M, and 100Y is genuine. Further, each of the ink cartridges 100K, 100C, 100M, 100Y has the same configuration except for the color of the ink stored therein. Therefore, the ink cartridge 100K will be described as an example.

The control Unit 10 includes, for example, a processor (for example, a CPU) functioning as an arithmetic Processing Unit that controls the operation of the entire printing apparatus 1. The processor functions as the first collating portion 11, the image collating portion 12, the password generating portion 13, the authentication portion 14, and the display control portion 15 by reading a predetermined program from the storage portion 20 and executing the predetermined program.

The first collating portion 11 collates the first password (an example of the first collation information) generated by the password generating portion 13 based on the ID stored in the ink cartridge 100K with the second password (an example of the second collation information) generated based on the ID already stored in the memory 121a of the ink cartridge 100K. Here, in the case where the ink cartridge 100K is genuine, the first password and the second password may coincide because they are both generated based on the common ID and using the common first algorithm.

The image matching unit 12 matches an image code (an example of third matching information) generated by the code generation unit 13 based on image information of a display image (for example, a display image IM1 as a two-dimensional code image shown in fig. 3A) as an example of an authentication image of the display unit 123 of the ink cartridge 100 captured by the imaging units 32K, 32C, 32M, and 32Y with an image code (an example of fourth matching information) generated based on image information of the display image of the display unit 123 and stored in the memory 121 a.

The password generation unit 13 generates the first password using the first algorithm stored in the storage unit 20 based on the ID read by the wireless communication unit 31. The password generation unit 13 generates the image password based on the image information (an example of the third matching information) acquired by the imaging units 32K, 32C, 32M, and 32Y.

When the matching results of the first matching unit 11 and the image matching unit 12 are both determined to match each other, the authentication unit 14 may authenticate the ink cartridge 100K as a genuine product.

The display control unit 15 controls the display of the display unit 40. For example, when the authentication by the authentication unit 14 is a non-genuine product, the display control unit 15 causes the display unit 40 to display a warning message: the mounted ink cartridge 100K is not genuine and may be inappropriate.

The storage unit 20 is, for example, a memory, and stores destination information indicating a region where the printing apparatus 1 is used and a first algorithm as a program for generating a second password.

The four imaging communication modules 30 include a wireless communication unit 31 and imaging units 32K, 32C, 32M, and 32Y.

The wireless communication unit 31 establishes wireless communication with the non-contact IC 121, reads various information from the non-contact IC 121, and supplies the read information to the control unit 10 of the printing apparatus 1. When the wireless communication unit 31 performs wireless communication with the contactless IC 121, the transmitting side adds a random number to information and transmits the information, and the receiving side deletes the added random number to extract the information. This can prevent interception of information to be communicated.

Each of the image pickup units 32K, 32C, 32M, and 32Y is disposed so as to face the display unit 123 of the ink cartridges 100K, 100C, 100M, and 100Y in the state of being mounted on the printing apparatus 1, and acquires image information by picking up an image displayed on the display unit 123 (for example, a display image IM1 as a two-dimensional code image shown in fig. 3A). The imaging units 32K, 32C, 32M, and 32Y are CMOS cameras, for example.

The imaging units 32K, 32C, 32M, and 32Y have the same configuration. The imaging units 32K, 32C, 32M, and 32Y are appropriately described as imaging units 32.

As described above, the display control unit 15 controls the display unit 40 to display, and for example, when the authentication result of the authentication unit 14 is a non-genuine product, the display unit 40 displays a warning message as follows: the mounted ink cartridge 100K is not genuine and may be inappropriate.

The interface unit 50 transmits and receives various information to and from other devices such as a user terminal.

The ink cartridge 100K has an ink bottle 110 and a control module 120.

The control module 120 functions as an RF tag, and includes a contactless IC 121, a microcomputer 122, a display unit 123, an environment sensor 124, and a battery 125.

The non-contact IC 121 has a memory 121a and a processing portion 121 b.

The memory 121a stores an ID for uniquely identifying the ink cartridge 100K, attribute data of the ink stored in the ink bottle 110, a second password generated based on the ID (an example of second collation information), and an image password generated based on information of the display image displayed on the display portion 123 (an example of fourth collation information).

Further, the memory 121a may store destination information indicating a region where the ink cartridge 100K is used, or may store image information of a display image displayed on the display unit 123. The ink attribute data may include ink color information, ink solvent type information, and ink remaining amount information.

The processing unit 121b includes a processor (e.g., CPU) functioning as an arithmetic processing device. The processing unit 121b acquires information on the amount of ink ejected from the printing apparatus 1, calculates the remaining amount of ink in the ink bottle 110 of the ink cartridge 100K based on the amount of ink ejected, and stores the calculated remaining amount of ink in the memory 121a as remaining ink amount information.

The microcomputer 122 includes a processor (for example, a CPU) functioning as an arithmetic processing unit, a wireless communication unit that performs wireless communication with the wireless communication unit 31 or the interface unit 50 of the printing apparatus 1, and the like. Further, the microcomputer 122 can perform addition and deletion of the above-described random number used when the wireless communication section performs wireless communication. Since the microcomputer 122 is disposed in the control module 120, the processing unit 121b may be omitted, and the microcomputer 122 may perform the same function as the processing unit 121 b. The microcomputer 122 functions as an example of a display control unit that causes the display unit 123 to display an authentication image when the printing apparatus 1 authenticates the ink cartridge 100K.

The display unit 123 is, for example, electronic paper. Although it is desirable that the display unit 123 be electronic paper in order to maintain a display image without consuming power, the display unit 123 may be another display unit such as a liquid crystal display if power can be secured.

The environmental sensor 124 acquires environmental information around the ink cartridge 100K such as temperature and humidity. The environmental information may be transmitted to the printing apparatus 1 by the microcomputer 122.

The battery 125 is an example of a power supply device that wirelessly supplies power consumed by the control module 120, for example, but power obtained by the contactless IC 121 through wireless communication with the wireless communication unit 31 may be used as power consumed by the control module 120.

Fig. 2 is a perspective view showing the ink cartridge 100K.

Fig. 3A and 3B are front and right side views showing the control module 120.

As shown in fig. 2, the control module 120 is exposed to the outside of the ink cartridge 100K.

The antenna of the non-contact IC 121 shown in fig. 3A is, for example, an invisible part embedded in the substrate 126 of the control module 120.

The display portion 123 is disposed on the front surface of the control module 120. The display image IM1 displayed on the display unit 123 is an example of an authentication image, and is, for example, a two-dimensional code. The authentication image may be a trademark, a logo, an arbitrary character string, or the like, and is not particularly limited. The microcomputer 122 may perform display control so that the authentication image is a different image based on the status (for example, remaining amount) of the ink cartridge 100K, the destination information of the printing apparatus 1 or the ink cartridge 100K, and the like.

As shown in fig. 3B, a non-contact IC 121, a microcomputer 122, and the like are mounted on a substrate 126 on the back surface of the control module 120.

The ink cartridge 100K shown in fig. 2 is, for example, rectangular parallelepiped and is attached to the inkjet printing apparatus. As shown in fig. 4, the consumable part may be an ink cartridge 200 that is mounted in a stencil printing apparatus, for example, in a cylindrical shape. As shown in fig. 5 (a view of the ink cartridge 200 of fig. 4 viewed from the V direction), the control module 120 is disposed deep at one end of the ink cartridge 200.

The consumable supplies are not limited to the ink cartridges 100 and 200, and may be any ones that are attached to the printing apparatus 1, such as a toner cartridge, a stencil sheet, and a photosensitive drum.

Fig. 6A to 6D are diagrams illustrating examples of display images of the display unit 123.

The display image IM2 shown in fig. 6A includes a two-dimensional code image IM2a and a trademark image IM2b located in the non-read area of the two-dimensional code image IM2a, i.e., "{ character } ABC }.

The display image IM2 is an example of an image for the user, and is used for the following purposes, for example: the user reads the two-dimensional code image IM2a with a user terminal such as a smart phone, thereby acquiring a contact address for inquiry such as a telephone number, a URL of product information, and the like. Further, the user-oriented image may display the query contact address not by the two-dimensional code image IM2a but by characters or the like.

A display image IM3 shown in fig. 6B is another example of a user-facing image, and includes a model image IM3a and a brand image IM3B such as ″) ABC colle".

The display image IM4 shown in fig. 6C is another example of an image facing the user, and includes a model image IM4a and a margin image IM4 b. The remaining amount image IM4b is an example of a status display image of the ink cartridge 100K. The state display image of the ink cartridge 100K may be displayed on the display section 123 by the microcomputer 122 based on, for example, information (remaining amount information, etc.) about the state of the ink cartridge 100K stored in the memory 121 a.

The display image IM5 shown in fig. 6D is a notification image "please notify the responsible window in which the problem has occurred", and the display image IM5 is displayed when the authentication result is non-genuine, for example. The display image IM5 is also an example of a status display image of the ink cartridge 100K. In addition, when the authentication result is a non-genuine product, the notification image may be displayed, and the inquiry contact information such as a telephone number may be displayed in the same manner as the display image IM2 shown in fig. 6A.

As described above, the microcomputer 122 that controls the display of the display portion 123 may cause the display portion 123 to display, for example, the display image IM1 as an authentication image when the above-described authentication of the ink cartridge 100K is performed, and may cause the display portion 123 not to display the display image IM1 when the authentication is not performed. For example, when authentication is not performed, the microcomputer 122 may close the display (no display image) on the display unit 123, or may display the display images IM2 to IM5, which are images for the user. In this way, the microcomputer 122 can cause the display section 123 to selectively display at least one of a plurality of images including, for example, the display image IM1 as an image for authentication and the display images IM2 to IM5 as images for the user. In the authentication, for example, at least a part of the time including the time when the image pickup unit 32 picks up the image may be required during a period after the non-contact IC 121 and the wireless communication unit 31 start wireless communication and before the authentication result comes out. Further, the authentication image (the display image IM1) may be displayed on the display unit 123 immediately after the authentication.

Here, an example of the authentication process of the printing apparatus 1 with respect to the ink cartridge 100K will be described.

When the printing apparatus 1 detects that the ink cartridge 100K is mounted based on the power-on, the return from the power saving mode, or the detection result of the sensor not shown, the wireless communication section 31 of the printing apparatus 1 establishes wireless communication with the contactless IC 121, and the printing apparatus 1 acquires the ID and the second password from the memory 121a of the contactless IC 121.

Next, the password generation unit 13 generates a first password using the first algorithm stored in the storage unit 20 based on the ID read by the wireless communication unit 31.

The first matching unit 11 matches the first password generated by the password generation unit 13 with the second password read by the wireless communication unit 31.

When the first password and the second password do not match, the ink cartridge 100K is not genuine, and therefore the authentication unit 14 causes the display unit 40 to display a warning message as follows: the mounted ink cartridge 100K is not genuine and may be inappropriate.

When the first password and the second password match, the wireless communication unit 31 reads the image password from the memory 121a of the contactless IC 121. The image pickup unit 32 picks up the image of the display image IM1 shown in fig. 3 as an example of the authentication image by the image pickup display unit 123.

The password generation unit 13 generates the image password based on the image information of the display image IM1 of the display unit 123.

Then, the image matching unit 12 matches the image password (an example of the third matching information) generated by the password generation unit 13 with the image password (an example of the fourth matching information) read from the memory 121a of the contactless IC 121 by the wireless communication unit 31.

Here, the image password stored in the memory 121a of the ink cartridge 100K is an image password that is generated and stored in advance based on the authentication image displayed on the display unit 123 by the microcomputer 122.

When the two image passwords do not match, the ink cartridge 100K is not genuine, and therefore the authentication unit 14 causes the display unit 40 to display a warning message as follows: the mounted ink cartridge 100K is not genuine and may be inappropriate.

On the other hand, when the two image passwords match, the authentication unit 14 authenticates the attached ink cartridge 100K as a genuine product. The comparison of whether the two image passwords coincide with each other may be performed before the comparison of whether the first password and the second password coincide with each other.

As described above, in the printing apparatus 1, when it is determined that both the comparison results of the first comparing portion 11 and the image comparing portion 12 match, the authentication portion 14 authenticates the ink cartridge 100K as a genuine product. The authentication described above is merely an example, and the authentication method is not particularly limited as long as the authentication is performed based on the authentication image displayed on the display unit 123.

Fig. 7 is an explanatory diagram for explaining activation using an image for charging information in the embodiment.

As shown in fig. 7, the printing apparatus 1 is connected to a user terminal 300 and a server apparatus 400 via a network N.

The user terminal 300 includes a control unit 310, a storage unit 320, an image pickup unit 330, and an interface unit 340. The user terminal 300 is a portable terminal such as a tablet terminal or a smart phone.

The server apparatus 400 includes a control unit 410, a storage unit 420, and an interface unit 430.

The control units 310 and 410 include processors (e.g., CPUs) functioning as arithmetic processing devices.

The storage unit 320 of the user terminal 300 is, for example, a memory. The storage unit 420 of the server apparatus 400 includes, for example, a hard disk device.

The image pickup section 330 of the user terminal 300 is, for example, a camera that acquires image information by picking up a display image of the display section 123 (for example, a display image IM2 including a two-dimensional code image IM2a shown in fig. 3B).

Interface units 340 and 430 transmit and receive various information to and from other devices.

The image facing the user, such as the display image IM2 shown in fig. 6A, may include a two-dimensional code image IM2a that functions as an example of the charging information image of the ink cartridge 100K. The image for charging information may be a trademark, a logo, an arbitrary character string, or the like, and is not particularly limited. The microcomputer 122 performs display control so that the image for the charging information is a different image (image corresponding to the fee) based on the status (for example, remaining amount) of the ink cartridge 100K, the destination information of the printing apparatus 1 or the ink cartridge 100K, and the like.

The user can acquire, for example, the URL of a charge page for charging by reading the two-dimensional code image IM2a by the image pickup unit 330 of the user terminal 300. When the user pays the fee of the ink cartridge 100K, the server apparatus 400 may transmit an activation code (payment completion information) to a wireless communication section or the like of the microcomputer 122 of the ink cartridge 100K, or inquire of the server apparatus 400 whether payment is completed based on the ID of the ink cartridge 100K when the printing apparatus 1 authenticates the ink cartridge 100K.

Thereby, the use of the ink cartridge 100K can be permitted only in the case where the payment of the ink cartridge 100K is completed. Further, the processing portion 122 may not display the image for charging information on the display portion 123 after the payment of the fee is completed or after the ink cartridge 100K is authenticated.

The server device 400 may be configured to allow permanent use of each ink cartridge 100K, and may be configured to perform charging according to the amount of use (for example, charging according to the amount of use or charging according to a predetermined amount of money), charging based on the time of use or the period of use, setting the price for each region (for example, each region of use), and the like. Further, the printing apparatus 1 may print the settlement information when detecting that the cartridge 100K having completed the payment is mounted.

In the present embodiment described above, the ink cartridge 100 as an example of a consumable product is mounted on the printing apparatus 1, and the ink cartridge 100 includes the display unit 123 and the microcomputer 122 as an example of a display control unit that performs display control of the display unit 123. When the printing apparatus 1 authenticates the ink cartridge 100, the microcomputer 122 causes the display unit 123 to display a display image IM1 as an example of an authentication image.

This makes it difficult to simulate the authentication image (display image IM1) as compared with the case where the authentication image is directly attached to the ink cartridge 100. Therefore, according to the present embodiment, the recognition accuracy of the genuine product can be improved. This makes it possible to notify the user of, for example, the ink cartridge 100 being a non-genuine product. Thus, the following can be suppressed: when an inappropriate consumable is attached to the printing apparatus 1, the quality of a printed image is degraded and the printing apparatus 1 malfunctions.

In the present embodiment, the display unit 123 is electronic paper. Thus, the display unit 123 can maintain the display state without consuming power. Therefore, power for maintaining the display states of the display images IM1 to IM5 is not required, and the need for a large battery and the power cost can be avoided as compared with a display unit such as a liquid crystal display that requires power for maintaining the display states.

In the present embodiment, the microcomputer 122 selectively displays at least one of a plurality of images including the display image IM1 as an example of the authentication image and the display images IM2 to IM5 as an example of the user-oriented image on the display unit 123. Thus, when the image directed to the user is, for example, the display image IM2, IM3, IM4 including the model image IM3a, IM4a, the brand image IM2b, or IM3b, the user can recognize the ink cartridge 100 as being genuine by viewing the display unit 123. In addition, when the image directed to the user is, for example, the display image IM4 including the margin image IM4b as an example of the status display image, the display image IM5 of the notification image as another example of the status display image, and the like, the user can grasp the status of the ink cartridge 100 by viewing the display unit 123. In addition, in the case where the image directed to the user is, for example, the display image IM2 including the two-dimensional code image IM2a, the user can acquire various information by capturing the two-dimensional code image IM2a by the image capturing section 330 of the user terminal 300 or the like.

In the present embodiment, the user-oriented image includes the display image IM2 as an example of the charging information image of the ink cartridge 100. In addition, when the remaining amount of the ink cartridge 100 is used up and there is no spare part in the printing operation, the printing operation is interrupted until the ink cartridge 100 arrives after ordering a new ink cartridge 100. In addition, the ink cartridge 100 is generally expensive, and purchasing a large amount of spare parts becomes a burden for the user. On the other hand, in the present embodiment, for example, the user can obtain the charging information by capturing an image of the display image IM2, which is an example of the charging information image, by the image capturing unit 330 of the user terminal 300 or the like. Therefore, the seller of the ink cartridge 100 can first provide the user with a sufficient number of ink cartridges 100 in a state that cannot be used until the payment is completed, free of charge. Therefore, the user can avoid interruption of the printing operation, and the seller can avoid separate transmission of the ink cartridge 100 and can grasp the use status of the ink cartridge 100. Further, after the payment of the fee is completed or after the ink cartridge 100 is authenticated, the microcomputer 122 does not display the image for the charging information on the display portion 123, thereby preventing the image for the charging information of the ink cartridge 100, on which the payment of the fee is completed, from being imitated.

The present invention is not limited to the above-described embodiments, and the components can be modified and embodied in the implementation stage without departing from the spirit and scope thereof. In addition, various inventions can be formed by appropriate combinations of a plurality of constituent elements disclosed in the above embodiments. For example, all the components described in the embodiments may be combined as appropriate. It is needless to say that various modifications and applications can be made without departing from the spirit and scope of the invention. Hereinafter, the invention described in the claims at the time of filing of the present application will be described.

[ additional notes 1]

A consumable mounted on a printing device, the consumable comprising:

a display unit; and

a display control unit that performs display control of the display unit,

wherein the display control unit causes the display unit to display an authentication image when the printing apparatus authenticates the consumable part.

[ appendix 2]

The consumable of supplementary note 1, wherein,

the display portion is electronic paper.

[ additional notes 3]

The consumable of supplementary note 1 or 2, wherein,

the display control unit causes the display unit to selectively display at least one of a plurality of images including the authentication image and a user-oriented image.

[ additional notes 4]

The consumable of supplementary note 3, wherein,

the user-oriented image includes an image for charging information of the consumable.