Robust bit scheme for a memory of a replaceable printer component
US6769757B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2003 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Mar 10, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17546
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A replaceable printer component having an integral memory for use in a printing system includes a semiconductor die and a plurality of circuits formed on the semiconductor die. Each circuit is associated with and indicates the state of a bit in the memory. The memory stores a plurality of functional bits that must match values expected by the printing system for proper operation of the printing system. The memory stores a plurality of informational bits that are not critical to proper operation of the printing system. A large percentage of the circuits associated with the functional bits are positioned substantially near a center of the semiconductor die.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.