Photographic processing apparatus for photosensitive material
US6705778B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2003 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Mar 31, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D15/022
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic processing apparatus includes a photographic paper processing bath train. A drier, positioned downstream from the train, heats air and dries the photographic paper. Feeding racks feed the paper in a predetermined travel path which begins on an upstream side of the train, extends therethrough, and ends at the drier. A memory is accessed to estimate expected travel time t1 for passing of the paper through the travel path. The memory is accessed to estimate expected warmup time t2 for warming up the air in the drier to a target temperature T2. A controller compares the time t1 and the time t2, initially starts heating in the drier if the time t2 is longer than the time t1, and starts actuation of the feeding racks when a time difference (t2-t1) elapses after start of the heating to synchronize drier warmup to temperature T2 with paper reaching the drier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.