The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 1983
Filed:
Nov. 16, 1981
Kenneth M Kaufmann, Minneapolis, MN (US);
Pako Corporation, Minneapolis, MN (US);
Abstract
A processor of photosensitive material includes an automatic control system for providing anti-oxidation replenishment and preventing anti-oxidation overreplenishment, as a function of a stored anti-oxidation replenishment rate and anti-oxidation replenishment provided by exhaustion replenishment. A fixed time interval is initiated after which the anti-oxidation replenishment required due to expired time is compared to the amount of anti-oxidation replenishment provided by the exhaustion replenishment in that time interval. An amount of needed anti-oxidation replenishment is added to the developer tank, as a function of the difference by which the required anti-oxidation replenishment exceeds the anti-oxidation provided by exhaustion replenishment. If the accumulated amount of replenishment exceeds the anti-oxidation replenishment needed, no replenishment is provided and the excess value is carried over to a subsequent time interval so that the accumulated overreplenishment errors which occurred in prior art fixed time/variable quantity replenishment systems are eliminated.