Printer including temperature controlled LED recording heads
US5751327A · kind A · utility
39Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1994 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Jun 8, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/377
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An electrophotographic printer includes a plurality of recording heads connected in series in a closed cooling circuit. Each of the recording heads includes a linear array of light-emitting diodes (LEDs) on a common thermally conductive LED carrier bar. The carrier bar carries a series of modules, each module containing N LEDs with their associated drivers. The carrier bar is provided with a U-shaped duct inside a thermally conductive body which is in thermally conductive contact with the carrier bar. The duct extends between a fluid inlet and a fluid outlet and has a cooling fluid such as water flowing therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.