Sheet heating device
US4994642A · kind A · utility
16Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1989 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Oct 24, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2227/325
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color copying machine has a sheet heating device for heating a color developer sheet while the sheet is being fed. The sheet heating device includes a sheet feed path along which the sheet is fed, a heater unit spaced from the sheet feed path, and a sheet protective member of an insulating material disposed between the sheet feed path and the heater unit. The sheet protective member has a plurality of holes defined therein for passing radiant heat from the heater unit toward the sheet feed path. The sheet protective member may comprise a mesh screen of intersecting filaments or a punched iron sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.