Replaceable Printer Component Including Memory Storing Data Defined by Tags and Sub-Tags

• US 20110157647A1
• Filed: 05/29/2008
• Published: 06/30/2011
• Est. Priority Date: 05/29/2008
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Panshin, Stephen D., Ward, Jefferson P., Refstrup, Jacob Grundtvig
• Application Number:
  US12/994,445
• Publication Number:
  US 20110157647A1
• Time in Patent Office: Days
• US Class Current: 358/1.15
• CPC Class Codes: B41J 2/17546 electronically
• CPC Class Codes: G03G 15/0855 the concentration being measured by optical means
• CPC Class Codes: G03G 15/0863 provided with identifying means or means for storing process- or use parameters, e.g. an electronic memory
• CPC Class Codes: G03G 15/0865 Arrangements for supplying new developer
• CPC Class Codes: G03G 2215/0697 being an electronically readable memory

Abstract

A replaceable printer component includes a memory and a communication link. The memory is configured to store data in each of a plurality of portions of the memory. Each portion is defined by a tag. Within a first portion of the memory defined by a first tag, the data within the first portion is stored in a plurality of sub-portions of the first portion. Each sub-portion is defined by a sub-tag. The communication link is configured to communicatively link the memory to a printer controller when the replaceable printer component is installed in a printing system.

Claims

1. A replaceable printer component comprising:

a memory configured to store data in each of a plurality of portions of the memory, each portion defined by a tag, wherein within a first portion of the memory defined by a first tag, the data within the first portion is stored in a plurality of sub-portions of the first portion, each sub-portion defined by a sub-tag; and

a communication link configured to communicatively link the memory to a printer controller when the replaceable printer component is installed in a printing system.

2. The replaceable printer component of claim 1, wherein each tag indicates a type and a length of the data stored in the portion defined by the tag.

3. The replaceable printer component of claim 2, wherein each tag provides a factor of the length of the data stored in the portion defined by the tag.

4. The replaceable printer component of claim 1, wherein each sub-tag indicates a type and a length of the data stored in the sub-portion defined by the sub-tag.

5. The replaceable printer component of claim 1, wherein each tag is stored in the memory immediately preceding the data defined by the tag, and

wherein each sub-tag is stored in the memory immediately preceding the data defined by the sub-tag.

6. The replaceable printer component of claim 1, wherein the replaceable printer component comprises one of an inkjet cartridge, an inkjet printhead assembly, a toner cartridge, and an ink supply.

7. The replaceable printer component of claim 1, wherein the replaceable printer component comprises a peripheral device of the printing system.

8. The replaceable printer component of claim 1, wherein the memory comprises a non-volatile memory.

9. A replaceable printer component comprising:

means for storing data in a plurality of blocks including a first block and for storing data in a plurality of sub-blocks of the first block;

means for defining the data stored in each block;

means for defining the data stored in each sub-block of the first block; and

means for communicatively linking the means for storing to a printer controller when the replaceable printer component is installed in a printing system.

10. The replaceable printer component of claim 9, wherein the means for defining the data stored in each block comprises means for defining a type and a length of the data stored in each block.

11. The replaceable printer component of claim 10, wherein the means for defining the type and the length of the data stored in each block comprises a first 4-bit value and a second 4-bit value associated with each block, each first 4-bit value indicating the type of data stored in the associated block and each second 4-bit value indicating a factor of the length of the data stored in the associated block.

12. The replaceable printer component of claim 9, wherein the means for defining the data stored in each sub-block comprises means for defining a type and a length of the data stored in each sub-block.

13. The replaceable printer component of claim 12, wherein the means for defining the type and the length of the data stored in each sub-block comprises an 8-bit value associated with each sub-block, each 8-bit value indicating both the type and the length of the data stored in the associated sub-block.

14. The replaceable printer component of claim 9, wherein the means for storing comprises a non-volatile memory.

15. The replaceable printer component of claim 9, wherein the replaceable printer component comprises one of an inkjet cartridge, an inkjet printhead assembly, a toner cartridge, and an ink supply.