Submitting software upgrades to a digital printer through a standard port
US6124938A · kind A · utility
7Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1998 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Sep 24, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F8/65
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for submitting upgrades to software which operates a digital printer. The software enters the printer through a standard printer port. When an upgrade is sent, the status pins are reassigned new functions relating to the progress of the software upgrade, instead of using the status pins of the printer port in a standard fashion for submitting print data. In upgrade mode, the levels of the status pins are recognized as a multi-bit word, relating to a specific condition of the upgrade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.