JP6616544B2 - Conversion map for printer cartridges - Google Patents

Description

  Output devices (eg, printers) can implement subtractive color mixing models (eg, cyan, magenta, yellow, and black (CMYK) color models), while input devices (eg, computer monitors, cell phones) , And other input devices) can implement additive color mixing models (eg, red, green, and blue (RGB) color models).

  In order to output data such as graphics, text, or combinations thereof from the input device, the output device can convert the additive color mixture model into a subtractive color mixture model via print color conversion. Manufacturers and / or vendors are required to provide print color conversion so that graphics and / or text are output from an output device such as a printer with a more accurate color representation.

  In the following description, specific details are provided to provide a thorough understanding of embodiments of the invention. However, it will be understood that such embodiments may be practiced without such specific details. For example, the system of the present invention may be shown in a block diagram so that embodiments thereof are not obscured by unnecessary details.

  Print color conversion can depend on the composition of the particular ink or toner. For this reason, it is desirable to provide the color table with the printer ink or toner rather than being included in the printer firmware or printer driver. However, the management of the color data in the printer replenishment becomes more complicated than the case where the color table is stored in the printer firmware. For example, a customer may have installed multiple versions of supplies on a single printer, different supplies may vary in ink and color table, and support different media. To get. Further, such supplies can be used by multiple printers or can be used by printers that have not yet been developed.

  Accordingly, embodiments herein include a system embedded in the memory of a print cartridge that can utilize multiple versions and permutations of ink, color tables, print media, and / or printers. To do. In one embodiment, the printer cartridge can include a storage device. The conversion wrapper can be stored in the storage device. The conversion wrapper is capable of dynamically constructing a conversion map for a printer based on metadata stored in the storage device. The metadata can indicate at least one of a particular type of depositing material, a transformation map, a print medium, and a printer.

  The transformation wrapper can use the meta-data to construct transformation data from more primitive data elements or from other existing transformations. This data conversion or encoding can provide the flexibility to handle different versions and replacement objects that can occur, such as ink changes, media support, color tables, and printers. For example, including a color table map in a printer cartridge can provide customers with improved ink / toner types that did not exist when the original product was manufactured. Further, depending on the embodiment, it is possible to correct an error in the color table in the printer discovered after the start of manufacture on site.

  Further, in some embodiments, it is possible to modify the color table due to media changes and to add support for media types that did not exist at the time the product was manufactured. Further, in some embodiments, it is possible to introduce ink / toners with different color characteristics without requiring the customer to replace all of the multiple ink / toner supplies to correct the error, as well as a single It is possible to introduce a plurality of different and improved color tables for different colors. Furthermore, in some embodiments, it is possible to reduce the storage space on the printer cartridge that is required to store the color table.

FIG. 3 is a block diagram of one embodiment of a printer cartridge that includes a conversion wrapper for building a conversion map. FIG. 2 is a block diagram of an embodiment of the storage device of FIG. 1. FIG. 3 is a block diagram of an embodiment of a printer cartridge that includes instructions for generating a conversion map in the printer cartridge. 6 is a flowchart of one embodiment of a method for generating a conversion map in a printer cartridge.

  The following detailed description refers to the drawings.

  FIG. 1 is a block diagram of one embodiment of a printer cartridge 100 that includes a conversion wrapper 120 for building a conversion map 140. The printer cartridge 100 can be any type of cartridge for storing deposited material. Exemplary deposition materials include inks, toners, plastics, polymers, powdered metals, alloys, and the like. In one embodiment, the printer cartridge 100 can be an ink cartridge that contains liquid ink for use in an inkjet printer. In another embodiment, the printer cartridge 100 can be a toner cartridge containing dry toner powder for use in a laser printer.

  Printer cartridge 100 is shown to include a storage device 110. The storage device 110 can be any electrical, magnetic, optical, or other physical storage device. For example, examples of the storage device 110 include a RAM (Random Access Memory), an EEPROM (Electrically Erasable Programmable Read-Only Memory), a ROM (Read-Only Memory), a flash memory, and a storage drive.

  The storage device 110 is shown to store the conversion wrapper 120. The conversion wrapper 120 includes metadata 130. The conversion wrapper 120 refers to any type of container or wrapper format, such as a metafile format that describes how multiple different data elements and metadata coexist in a file. The term “metafile” refers to a file format that can store multiple types of data. The term “metadata” is intended to include structural metadata and / or descriptive metadata. Structural metadata refers to the design and specification of a data structure such as a data container. Descriptive metadata refers to individual instances of application data such as data content.

  The conversion wrapper 120 can dynamically build a conversion map 140 for a printer (not shown), such as a laser or inkjet printer, based on the metadata 130 stored in the storage device 110. The metadata 130 may indicate specific types of deposition materials, conversion maps, print media, and printers. The metadata 130 will be described in detail below with respect to FIG.

  The conversion map 140 may be a specific type of color table and / or map. As described above, the color table can be used for conversion between different color models. For example, before an input image is printed as a physical output, an additive color mixture model such as RGB on the input side can be converted to a subtractive color mixture model such as CMYK on the output side. This can be done using a color table that converts or converts RGB color data to CMYK color data. Examples of the RGB color model include sRGB, Adobe (registered trademark) RGB, and scan RGB. However, such examples are not limited to RGB and CYMK color models, but any type of input such as SWOP (Specifications for Web Offset Publications) CYMK model and CIE (International Lighting Commission) L * a * b color model. And / or an output color model.

  In one embodiment, the transformation map 140 can correspond to a particular media type. For example, a particular paper type or a particular paper color can have a corresponding conversion map 140. For example, a given conversion map 140 can correspond to plain paper, and another conversion map 140 can correspond to thicker paper (eg, company paper or bond paper). In another embodiment, it is possible to have different transformation maps 140 with different degrees of output quality. For example, the “draft” quality may have a particular transformation map 140 and the “best” quality may have a different transformation map 140. In yet another embodiment, different input devices can have different corresponding transformation maps 140. For example, different models of printers can have different corresponding conversion maps 140.

  Although FIG. 1 shows a single conversion map 140, an embodiment of the printer cartridge 100 may include multiple conversion maps for multiple different types and / or versions of printers, media, deposition materials, users, and the like. 140 can be included. In addition, although FIG. 1 shows a single printer cartridge 100, multiple print cartridges 100 can be connected to a single printer. Each of the plurality of printer cartridges 100 can correspond to a different color.

  For example, one of the plurality of printer cartridges 100 can include black ink, and another one of the plurality of printer cartridges 100 can include cyan, magenta, and yellow ink. In another embodiment, one of the plurality of print cartridges 100 includes black ink, another one of the plurality of printer cartridges 100 includes cyan ink, and yet another of the plurality of print cartridges 100 One of the plurality of print cartridges 100 may include magenta ink, and another one of the plurality of print cartridges 100 may include yellow ink. Further, each of the plurality of print cartridges 100 can include a conversion map 140. In addition, one conversion map 140 of the plurality of print cartridges 100 can be influenced by another one of the plurality of print cartridges 100 (for example, a plurality of printer cartridges 100 of different versions For example, when used together in one printer).

  FIG. 2 is a block diagram of one embodiment of the storage device 110 of FIG. The storage device 210 of FIG. 2 can include at least the functions and / or hardware of the storage device 110 of FIG. For example, the storage device 210 is illustrated as including a conversion wrapper 220 that includes metadata 230. Here, the metadata 230 is further illustrated to include properties 232, tags 234, conditions 236, and recipes 238. Further, the storage device 210 is illustrated as storing primitive data 250. FIG. 2 illustrates a single property 232, tag 234, condition 236, and recipe 238, but in some embodiments, multiple properties 232, multiple tags 234, multiple conditions 236, and / or multiple recipes 238. Recipe 238 can be included. For example, there can be separate tags 234 for specific types of media, color spaces, supply families, and the like.

  Properties 232 can describe primitive data 250 stored and / or generated by printer cartridge 100. The primitive data 250 may include basic color information regarding the contents of the printer cartridge 100 (eg, version of the printer cartridge 100, deposited material channels, and / or dimensions, etc.). The dimensions can include color table channel and / or node counts. The channel can be for a particular type of color. The node can indicate the amount of colorant that is output.

  Tag 234 may provide an identification of printer cartridge 100. For example, the tag 234 can include color space, media type, print quality, printer platform, supplies family, and the like. Condition 236 can limit when the conversion map 140 is available. For example, the condition 236 can specify which of a plurality of types of conversion maps should be used based on the tag 234. In one embodiment, condition 236 may include a Boolean expression of property 232 and tag 234. For example, condition 236 can be used to specify an exception color table that handles cases such as multi-printer platforms or multi-ink color revisions.

  Recipe 238 may include instructions for a method of constructing transformation map 140 based on at least one of an existing map and primitive data 250. In one embodiment, the recipe 238 instructions may use a stack model with a reverse Polish notation (RPN) operator. Recipe 238 may use tags 234 to identify elements such as existing map 238 and / or primitive data 250. If tag 234 is not present, recipe 238 can only identify the other element using other element properties 232. This is a problem because the same set of properties 232 can describe multiple elements. For example, there may be multiple channel map elements having the same channel color (eg, cyan) and node count (eg, 17 to the third power) property 232.

  The conversion map 140 can be a channel map and / or a color map. The color map can include a mapping for multiple colors, and the channel map can include a mapping for only one of the multiple colors. For example, the color map can convert between a CYMK color model and an RGB color model. The color map can include a plurality of channel maps, and the channel map can include primitive data.

  In one embodiment, the recipe 238 selects instructions for matching a plurality of channel maps by matching at least one of the property 232 and the tag 234 with the primitive data and combining the plurality of channel maps with instructions for building a color map. It is possible to include. Further, if there is a mismatch with the tag 234 and / or the property 232, it is possible not to select primitive data. For example, tag 234 may match a media type (eg, plain paper), but there may be a mismatch with property 232 (eg, a different color). In this case, it is possible not to use the primitive data because of a mismatch with the property 232 even though the tag 234 matches.

  Each of the plurality of channel maps may correspond to one of the plurality of deposited material colors of the printer. For example, recipe 238 may define operations for building a CMYK color map for color matching RGB source colors to the normal quality mode of plain paper for a particular printer. Here, the condition 236 can be set to default so that this color table is normally used when referenced by a set (or a subset) of matching tags 234. Recipe 238 determines a color data table (eg, channel map) for each individual ink by referring to properties 232, tags 234, and conditions 236, and pushes the multiple color data tables onto the stack and then combines them. It can be specified to build a CYMK color map.

  In another embodiment, the recipe 238 may include instructions for building a channel map based on the neutral axis included in the primitive data 250, a set of seed nodes, and a delta table. The neutral axis may relate to a single line extending from the origin of the three-dimensional color table to one node of the color table furthest from the origin. The set of seed nodes may correspond to a plurality of nodes in the compressed color table. The delta table may indicate the difference between the interpolated color table node and the corresponding actual color table. For example, recipe 238 can define operations for building a cyan channel map by pushing multiple elements onto a stack (eg, neutral axis, a set of seed nodes, and a delta table).

  The transformation map 140 can be a base map and / or a modifier map. The base map can be used by the printer without modification. The modification map can be used to modify at least one of the base map and the primitive data. In one embodiment, the recipe 238 may include instructions for building a new map based on the modification map and the base map. The modification map can be used to specify a scale, to specify an offset, and / or to select a replacement of data in the base map. For example, a draft mode color table can be designated as a normal mode color table modified with a small set of scale factors. For example, it is possible to change the node value of the base map by referring to the correction map by the recipe 238 of the base map.

Here, condition 236 can specify a given printer platform and a particular color ink version. Such a condition 236 can then be examined. If the test result is true, this color table can be used instead of the default. Recipe 238 can use inheritance to allow reuse of existing color data. For example, a channel map for a previous printer platform can be pushed onto the stack. It is then possible to push a scalar correction table onto the stack. Finally, an operation can be performed to apply the scalar correction table to the inherited channel map.

  The above embodiments for specifying the generation and application of the transformation map 140 and other color management data elements can exist on a supply (eg, a printer cartridge) and are updated within the supply. And can be resolved at run time when the customer changes ink or toner. Metadata 230, including tags 234, properties 232, and conditions 236, allows versioning and special casing for permutation of possible changes in printers, inks, and color tables. . Tag 234 also provides a reference to allow inheritance, where color data elements can be defined as deviations of different elements. The recipe 238 can specify the construction of color conversion data, and can also provide a means for specifying the structure of color data derived compactly from other data. In one embodiment, the metadata 230 can be compiled into a compact binary symbolic representation prior to storage in the storage device 210.

FIG. 3 is a block diagram of one embodiment of a computing device that includes instructions for generating a transformation map in a printer cartridge. In the embodiment of FIG. 3, computing device 300 includes a processor 310 and a machine-readable storage medium 320. Further, the machine-readable storage medium 320 includes instructions 322, 324, and 326 for generating a conversion map in a printer cartridge. The computing device 300 can be, for example, a printer cartridge, a printer, a mobile device, a fax machine, a multimedia device, a secure micro It can be a processor, notebook computer, desktop computer, all-in-one system, server, network device, controller, wireless device, or any other type of device capable of executing the instructions 322, 324, 326. In certain embodiments, computing device 300 may include or be connected to a memory, a controller, or other additional components.

  The processor 310 may be at least one central processing unit (CPU), at least one semiconductor-based microprocessor, at least one graphics processing unit (GPU), microcontroller, dedicated logic hardware controlled by microcode, or machine read Other hardware devices suitable for reading and executing instructions stored in the possible storage medium 320, or combinations thereof, may be used. The processor 310 can fetch, decode, and execute instructions 322, 324, and 326 to implement the generation of a conversion map in the printer cartridge. In lieu of or in addition to reading and executing instructions, processor 310 executes at least one integrated circuit (IC), other control logic, other electronic circuitry, or a combination thereof to execute instructions 322, 324, and 326. Can include many electronic components to do so.

  The machine-readable storage medium 320 can be any electronic, magnetic, optical, or other physical storage device that contains or stores executable instructions. Therefore, the machine-readable storage medium 320 may be, for example, a RAM (Random Access Memory), an EEPROM (Electrically Erasable Programmable Read-Only Memory), a storage drive, and a CR-ROM (Compact Disc Read Only Memory). Is possible. Thus, the machine readable storage medium 320 can be persistent. As described in detail below, the machine-readable storage medium 320 may encode a series of executable instructions for generating a conversion map in the printer cartridge.

  Furthermore, when the instructions 322, 324, and 326 are executed by a processor (for example, via one processing element or a plurality of processing elements of the processor), the instructions such as the process of FIG. 4 can be executed by the processor. For example, the generation instruction 322 can be executed by the processor 310 to generate a transformation map based on properties and tags included in a printer cartridge (not shown). A check instruction 324 may be executed by the processor 310 to check the conditions associated with the conversion map and contained in the print cartridge.

  A permission instruction 326 is executed by the processor 310 to allow the conversion map to be used by a printer (not shown) if the checked condition is met. The property can describe primitive data stored and / or generated by the printer cartridge. The tag can provide an identification of the printer cartridge. The conversion map can be stored in a printer cartridge. Changes in metadata can be communicated at runtime from the printer cartridge to the printer when at least one of a particular type of deposition material, conversion map, print media, and printer changes.

  FIG. 4 is a flowchart of one embodiment of a method 400 for generating a transformation map in a printer cartridge. Implementation of the method 400 is described in detail below with respect to the printer cartridge 100, but other suitable elements for performing the method 400 (eg, the printer cartridge 200) can be used. Further, the elements for performing method 400 can be distributed across multiple devices. In certain embodiments, the method 400 may be performed by regarding multiple devices cooperating with each other as a single device. The method 400 may be implemented in the form of executable instructions stored on a machine-readable storage medium (eg, storage medium 320) and / or electronic circuitry.

  In block 410, the printer cartridge 100 executes the conversion wrapper 120 and dynamically generates a conversion map 140 for the printer based on the metadata 130 stored in the printer cartridge 100. At block 420, the transformation map 140 is selected for use by the printer based on examining conditions contained in the metadata 130. The metadata 130 may indicate a particular type of deposition material, conversion map, print media, and / or printer. Based on the properties and tags contained in the metadata 130, at least one of a plurality of different types of transformation maps 140 is generated and used.

In the following, exemplary embodiments consisting of combinations of various components of the present disclosure are shown.
1. A storage device for a printer cartridge, the storage device comprising:
A conversion wrapper stored in the storage device, comprising a conversion wrapper that dynamically builds a conversion map for the printer based on the metadata stored in the storage device;
The metadata is indicative of at least one of a particular type of deposited material, a transformation map, a print medium, and a printer;
Storage device.
2. The metadata includes at least one of a property, a tag, a condition, and a recipe;
The property describes primitive data stored and / or generated by the printer cartridge;
The tag provides an identification of the printer cartridge;
The condition limits when the transformation map is available;
The recipe includes instructions for a method of building the transformation map from at least one of an existing map and the primitive data;
2. The storage device according to item 1.
3. The metadata includes the property;
The property includes at least one of a version of the printer cartridge, a deposited material channel, and a dimension;
The dimensions include at least one of channel and node counts;
The channel is for a particular type of color;
The node indicates the amount of colorant to be output;
3. The storage device according to item 2 above.
4). The metadata includes the tag and the condition;
The tag includes at least one of a color space, a media type, a print quality, a printer platform, and a supply family;
The condition specifies which of a plurality of types of transformation maps to use based on the tag;
3. The storage device according to item 2 above.
5. The metadata includes the property and the recipe;
The condition includes at least the logical expression of the property and the tag;
The instruction of the recipe uses a stack model using a reverse Polish notation (RPN) operator;
3. The storage device according to item 2 above.
6). The conversion map is at least one of a channel map and a color map;
The color map includes a mapping for a plurality of colors;
The channel map includes a mapping for one of the plurality of colors;
3. The storage device according to item 2 above.
7). The metadata includes the recipe;
The recipe is
Selecting a plurality of channel maps by matching at least one of the property and the tag with the primitive data;
Instructions for combining the plurality of channel maps to build the color map;
Each of the plurality of channel maps corresponds to one of a plurality of deposited material colors of the printer;
7. The storage device according to item 6 above.
8). The recipe includes instructions for building a channel map based on at least one of a neutral axis, a set of seed nodes, and a delta table included in the primitive data;
The neutral axis relates to a line extending from the origin of the three-dimensional color table to one node of the color table furthest from the origin;
The set of seed nodes corresponds to a plurality of nodes of the compressed color table;
The delta table indicates the difference between the interpolated color table node and the corresponding actual color table;
7. The storage device according to item 6 above.
9. The color map is for converting between the CMYK color model and the RGB color model;
The color map includes a plurality of channel maps;
The channel map includes the primitive data;
7. The storage device according to item 6 above.
10. The transformation map is at least one of a base map and a correction map;
The base map is used by the printer without modification;
The modification map is used to modify at least one of the base map and the primitive data;
3. The storage device according to item 2 above.
11. The recipe includes instructions for building a new map based on the modified map and the base map;
The correction map is used to perform at least one of a scale specification, an offset specification, and a selection of replacement of data of the base map
The storage device according to item 10 above.
12 A storage device for a printer cartridge, the storage device comprising instructions,
The instruction is
Execute a conversion wrapper to dynamically generate a conversion map for the printer based on the metadata stored in the printer cartridge;
Selecting the transformation map based on examining the conditions contained in the metadata;
The metadata is indicative of at least one of a particular type of deposited material, a transformation map, a print medium, and a printer;
Storage device.
13. 13. The storage device according to item 12, wherein at least one of a plurality of different types of conversion maps is generated and used based on properties and tags included in the metadata.
14 A storage device for a printer cartridge,
The storage device comprises a persistent computer-readable storage medium storing instructions;
When the instruction is executed by the processor of the device,
Generating a conversion map based on the properties and tags contained in the printer cartridge;
Inspect the conditions associated with the conversion map and contained in the print cartridge;
Allowing the processor to permit use of the transformation map by a printer if the inspected condition is satisfied;
The property describes primitive data stored and / or generated by the printer cartridge;
The tag provides an identification of the printer cartridge;
Storage device.
15. The conversion map is stored in the printer cartridge;
A change in the metadata is communicated from the print cartridge to the printer at runtime when at least one of a particular type of deposition material, conversion map, print media, and printer changes.
15. The storage device according to item 14 above.
16. A storage device;
A printer cartridge comprising: a conversion wrapper stored in the storage device, wherein the conversion wrapper dynamically builds a conversion map for the printer based on the metadata stored in the storage device;
The metadata is indicative of at least one of a particular type of deposition material, conversion map, print media, and printer;
Printer cartridge.

Claims (15)

A storage device;
A conversion wrapper stored in the storage device;
A printer cartridge comprising:
The conversion wrapper dynamically builds a conversion map for the printer based on the metadata stored in the storage device;
The transformation map includes at least one channel map including a mapping for one of a plurality of colors;
The metadata indicates at least a specific type of transformation map and includes properties and recipes;
The property describes primitive data stored in the storage device of the printer cartridge;
The recipe includes instructions for building a channel map based on at least one of a neutral axis, a set of seed nodes, and a delta table included in the primitive data;
The neutral axis relates to a line extending from the origin of the 3D color table to one node of the 3D color table furthest from the origin;
The set of seed nodes corresponds to a plurality of nodes of the compressed color table;
The delta table indicates the difference between the interpolated color table node and the corresponding actual color table;
Printer cartridge. The printer cartridge of claim 1, wherein the metadata further includes a tag for providing an identification of the printer cartridge. The printer cartridge according to claim 1, wherein the metadata further includes a condition for restricting when the conversion map is usable. 4. A printer cartridge according to claim 2, wherein the recipe includes instructions for identifying an element from the tag. The property includes at least one of a version of the printer cartridge, a deposited material channel, and a dimension;
The dimensions include at least one of channel and node counts;
The channel is for a particular type of color;
The node indicates the amount of colorant to be output;
The printer cartridge according to any one of claims 1 to 4. 3. The claim 3, claim 3, and claim 4, wherein the tag comprises at least one of color space, media type, print quality, printer platform, and supply family. The printer cartridge according to claim 5, wherein 2 is directly or indirectly cited. The printer cartridge according to claim 1, wherein the instruction of the recipe uses a stack model using a reverse Polish notation (RPN) operator. The recipe is
Selecting a plurality of channel maps by matching at least one of the property and the tag with the primitive data; and
A color map is constructed by combining the plurality of channel maps.
Including instructions for
Each of the plurality of channel maps corresponds to one of a plurality of deposited material colors of the printer;
The printer cartridge according to claim 3, wherein the printer cartridge is referred to claim 2 or claim 2. 9. The printer cartridge according to claim 8, wherein the color map is for converting between a CYMK color model and an RGB color model, and the channel map includes the primitive data. 10. A printer cartridge according to any one of the preceding claims, wherein the metadata further indicates at least a specific type of deposited material. The transformation map is at least one of a base map and a correction map;
The base map is used by the printer without modification;
The modification map is used to modify at least one of the base map and the primitive data;
The printer cartridge according to any one of claims 1 to 10. The recipe includes instructions for building a new map based on the correction map and the base map, the correction map including a selection of a scale, an offset, and a replacement of the base map data. The printer cartridge according to claim 11, wherein the printer cartridge is used to perform at least one of them. The conditions further specify a printer platform and a specific color ink version, and if this condition is checked and the test result is not true, a default table is used directly. The printer cartridge according to any one of claims 4 to 12, which is referred to automatically or indirectly. 14. The recipe defines operations for building a channel map by pushing elements such as the neutral axis, the set of seed nodes, and the delta table onto a stack. The printer cartridge according to any one of the above. The recipe defines the use of the stack so that a channel map for the previous printer platform is pushed onto the stack;
A scalar correction table is pushed onto the stack,
The scalar correction table is applied to a channel map for the previous printer platform;
The printer cartridge according to any one of claims 1 to 14.

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