Printer self-diagnosis device
US5027135A · kind A · utility
16Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1989 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Nov 14, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/0082
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A self-diagnosis device provided in a printer that detects more than one error among a plurality of functional mechanisms provided in the printer, with one process. Test devices are provided for testing the functional mechanisms, and a control unit operates the test devices to detect an error, even if errors have been detected in other functional mechanisms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.