Method and apparatus for adjusting the volume of replenishment fluid provided to a chamber of a film processor
US5189456A · kind A · utility
2Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1991 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Sep 30, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D3/065
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A processor has switches that detect events during operation of the processor and provide signals to a microprocessor which controls operation of the processor. A replenishment system for a processing fluid includes a pump that provides replenishment fluid to a chamber. The processor control is changed to a calibration mode of operation and the switches are used to determine the volume of fluid provided by the pump during one cycle of operation of the replenishment system, and then, if necessary, to adjust the time the pump is operated to increase or decrease the volume of fluid delivered during one cycle of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.