Electrostatographic compensation apparatus

Claim 2

In an electrostatographic copying device which utilizes a replaceable member having a particular sensitivity response with respect to operations to be performed thereon in the device at the work stations thereof, the member carrying coded indicia of its sensitivity response, apparatus for automatically effecting compensation in the device solely as a function of the sensitivity response of the utilized member, said apparatus comprising: a. means for detecting the particular sensitivity response range of the utilized member and for generating a signal representative thereof; b. control means responsive to said signal, cooperably associated with at least one of the work stations, for achieving compensation of an associated work station''s effect on the utilized member solely in accordance with the sensitivity response thereof as represented by said signal; and c. means for achieving original-to-original document contrast compensation cooperably associated with any one of the associated work stations, said control means including means for allowing said means for achieving and said control means to function independently of each other.

Claim 3

The apparatus according to claim 1 wherein said means for achieving and said control means are both cooperably associated for independent compensation with the same work station.

Claim 4

The apparatus according to claim 2 wherein the device includes an exposure control work station and said means for achieving and said control means are both cooperably associated for inDependent compensation therewith.

Claim 5

In an electrostatographic device of the type having a plurality of work stations including an exposure control station located along an endless operative path and which is adapted to utilize on the path electrophotosensitive members having a particular sensitivity response with respect to the operations to be performed thereon in the device, the members carrying coded indicia of its sensitivity response, apparatus for automatically effecting exposure compensation in the device solely as a function of the sensitivity response of a utilized member, said apparatus comprising: a. means for changing the exposure of the utilized member at the exposure station; b. sensing means for detecting and decoding the indicia of sensitivity response associated with the utilized member and for generating a signal representative thereof; and c. control means, cooperably associated with said means for changing and said sensing means, for automatically effecting a compensatory change in exposure of the utilized member solely in accordance with the nature of said signal generated by said sensing means, said means for changing including: i. a rotatably mounted exposure diaphragm, and ii. reversible drive means connected to said diaphragm and said control circuit means.

Claim 6

In an electrostatographic device of the type having a plurality of work stations including an exposure control station located along an endless operative path and which is adapted to utilize on the path electrophotosensitive members having a particular sensitivity response with respect to the operations to be performed thereon in the device, the members carrying coded indicia of its sensitivity response, apparatus for automatically effecting exposure compensation in the device solely as a function of the sensitivity response of a utilized member, said apparatus comprising: a. means for changing the exposure of the utilized member at the exposure station; b. sensing means for detecting and decoding the indicia of sensitivity response associated with the utilized member and for generating a signal representative thereof; and c. control means, cooperably associated with said means for changing and said sensing means, for automatically effecting a compensatory change in exposure of the utilized member solely in accordance with the nature of said signal generated by said sensing means, said means for changing including: i. a rotatably mounted exposure diaphragm, and ii. reversible drive means connected to said diaphragm and said control circuit means.

Claim 7

The apparatus according to claim 4 wherein said means for automatically effecting includes: a. a plurality of switching means, one each of said switching means being provided for each of the sensitivity response ranges expected into which the sensitivity response of a utilized member might fall, cooperably associated with said means for changing, for generating a signal when said means for changing has effected an exposure change in accordance with the particular sensitivity response range of the utilized web; and b. control circuit means connected to said means for changing said sensing means and said plurality of switching means for controlling said means for changing to effect an exposure change in accordance with the sensitivity range of the utilized member as represented by the signals generated by said sensing means and for de-energizing said drive means in response to the signals generated by said switching means.

Claim 8

The apparatus according to claim 5 wherein said means for changing includes: a. a rotatably mounted exposure diaphragm; and b. reversible drive means connected to said diaphragm and said control circuit means.

Claim 9

The apparatus according to claim 4 wherein said device additionally includes means for achieving original-to-original document contrast compensation cooperably associated with the exposure station, said means for changing including means for allowing said means for achieving and said means for changing to function independently of each other.

Claim 10

The apparatus according to claim 7 wherein said means for changing includes: a. a rotatably mounted exposure diaphragm; and b. reversible drive means connected to said diaphragm and said control circuit means.

Claim 11

In an electrostatographic device which utilizes a replaceable web having a particular sensitivity response and carrying coded indicia of one of the possible sensitivity ranges into which the particular sensitivity of the utilized web falls, and wherein the web is disposed in the device about an endless path to be driven therealong past a plurality of work stations including an exposure station, apparatus for automatically effecting exposure compensation as a function of the sensitivity range of the utilized web, said apparatus comprising: a. drivable means for changing the exposure of the utilized web at the exposure station; b. drive means for driving said means for changing to effect exposure change; c. sensing means for decoding the indicia indicating the sensitivity range of the utilized web and for generating signals representative thereof; d. a plurality of switching means, one each of said switching means beinG provided for each of the sensitivity ranges expected into which the sensitivity response of the utilized web might fall, cooperably associated with said means for changing, for generating a signal when said means for changing has effected an exposure change in accordance with the sensitivity range of the utilized web; and e. control circuit means connected to said drive means, said sensing means and said switching means for energizing said drive means to effect an exposure change in accordance with the sensitivity range of the utilized web as represented by the signals generated by said sensing means and for de-energizing said drive means in response to the signals generated by said switching means.

Claim 12

In an electrostatographic device which utilizes a replaceable web having a particular sensitivity response and carrying coded indicia of one of the possible sensitivity ranges into which the particular sensitivity of the utilized web falls, and wherein the web is disposed in the device about an endless path to be driven therealong past a plurality of work stations including an exposure station, apparatus for automatically effecting exposure compensation as a function of the sensitivity range of the utilized web, said apparatus comprising: a. drivable means for changing the exposure of the utilized web at the exposure station; b. drive means for driving said means for changing to effect exposure change; c. sensing means for decoding the indicia indicating the sensitivity range of the utilized web and for generating signals representative thereof; d. a plurality of switching means, one each of said switching means beinG provided for each of the sensitivity ranges expected into which the sensitivity response of the utilized web might fall, cooperably associated with said means for changing, for generating a signal when said means for changing has effected an exposure change in accordance with the sensitivity range of the utilized web; and e. control circuit means connected to said drive means, said sensing means and said switching means for energizing said drive means to effect an exposure change in accordance with the sensitivity range of the utilized web as represented by the signals generated by said sensing means and for de-energizing said drive means in response to the signals generated by said switching means.