HP CP4525DN Laser CC494A#ABA manual Paper feeder jam detection

Paper feeder jam detection

The 1 x 500-sheet paper feeder uses the tray 3 paper presence sensor (SR4) to detect the presence of paper and to check whether paper has jammed.

Figure 1-51Jam detection (1 x 500-sheet paper feeder)

SR4

The 1 x 500-sheet paper feeder detects the following jams:

●1 x 500-sheet PD pickup delay jam: Tray 3 feed sensor does not detect the leading edge of paper within a specified time (including two retries) after the pickup operation starts.

●1 x 500-sheet PD pickup stationary jam: Tray 3 feed sensor does not detect the trailing edge of paper within a specified time after the sensor detects the leading edge.

●1 x 500-sheet PD residual paper jam: Tray 3 feed sensor detects the presence of paper for a specified time during an automatic delivery operation.

The 3 x 500-sheet paper feeder uses the following sensors to detect the presence of paper and to check whether paper has jammed.

●Tray 3 paper presence sensor (SR4)

●Tray 4 feed sensor (SR7)

●Tray 5 feed sensor (SR10)

64 Chapter 1 Theory of operation ENWW