Optical system drive for image formation apparatus
US4586808A · kind A · utility
19Cited by
6References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1985 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Mar 15, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/526
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical system drive device for an image formation apparatus has a drive mechanism for reciprocally driving an exposure unit, and a pulse motor for supplying pulses to the drive mechanism. The pulses to be supplied to the pulse motor are stored in advance in a ROM. In accordance with either document size or required equal size, reduced scale or enlarged copying mode, a microprocessor reads out a predetermined control pulse from the ROM and applies it to the pulse motor, thereby controlling acceleration, constant velocity drive and deceleration of the pulse motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.