Image forming apparatus with TTL to ECL conversion between reading and printing circuits
US5283658A · kind A · utility
20Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1992 |
| Grant date | Feb 1, 1994 |
| Priority date | — |
| Expiry date | Nov 23, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/52
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention relates to an image forming apparatus for forming an image using a pulse modulated signal based on an input image signal. A circuit for pulse-modulating an image signal and a circuit for driving a recording element are integrally formed on a single circuit board, or a circuit means for isolating a signal level of another circuit, e.g., a circuit for digitally processing an image signal or a circuit for generating a control signal from that of the pulse modulation circuit is arranged, so that a pulse modulation signal to be applied to the recording element is stabilized, and a high-frequency operation is allowed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.