Control system for electrophotographic copying machine
US4247194A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1979 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Apr 25, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/55
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A control system for electrophotographic copying machines which may forcibly return the component parts which are reciprocated and rotated during the copying operations to their home positions after a power switch is turned on, may detect malfunctions after the copying operations are started and may enable the copying machine to repeat the copying sequence without the feed of copying sheets for running tests in inspections and maintenance. One or more one-chip microcomputers are used in order to control the above and other steps so that a number of component parts may be minimized and the copying machines may be made compact in size and be economically fabricated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.