System for controlling the activity of developing solutions and apparatus for processing photosensitive materials
US4494845A · kind A · utility
3Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1983 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Jun 2, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2509
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developer's activity control system and a photographic processing apparatus controlling same that divides the activity of the developing solution into a plurality of stages on the basis of the results of the processing of control strips and takes the necessary action for each stage, said developer control system includes a means for storing the initial conditions of the developing system and a means for comparing these initial conditions with the present conditions, the output of said comparing means being used to properly select the necessary action for each stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.