Detection and Resumption of Copying After an OUT-OF-PAPER Condition
Original Publication Date: 1986-Jul-01
Included in the Prior Art Database: 2005-Mar-09
A copier is described that operates without paper supply sensing switches in its primary and secondary paper supply bins. Instead, control logic algorithms properly control the copier by using other sensors to indicate that the copy supply paper becomes exhausted. The copier has a shingler sensor in each paper supply bin. This sensor is located to detect the successful shingling of a sheet of paper from the supply bin, into the copier's paper path. If the copier's control logic requests that a sheet of paper be shingled, and this sheet does not reach the shingler sensor in a prescribed length of time, the control logic causes a shingle retry.