Image forming apparatus
US4758860A · kind A · utility
6Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1985 |
| Grant date | Jul 19, 1988 |
| Priority date | — |
| Expiry date | Feb 4, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/50
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus which uses process sequence control for forming images using several computers includes circuits for detecting abnormal conditions in either the computer hardware or program sequence. Instruction signals for image formation are entered through an input circuit. When abnormal conditions are detected, the input circuit is prevented from entering instruction signals to one computer and another computer interrupts the image formation process. This other computer transmits data comprising a signal for indicating a process cycle and a signal for indicating disabled image formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.