Delay Jams; Stationary Jams; Other Jams; Delivery Delay Jam - Canon LBP3250 Series Service Manual

2.5.2.2 Delay Jams

2.5.2.2.1 Delivery Delay Jam

- If there is no paper ahead on paper path:
CPU detects delivery delay jam in the case that the sheet (to print) does not reach the fixing delivery sensor (PS701) within 1.5 sec (approximately) after it reaches
the leading edge sensor (PS801).
- If there is paper ahead on paper path:
CPU detects delivery delay jam in the case that 1st sheet (to print) is detected by the fixing delivery sensor (PS701) 1.5 sec (approximately) after the 2nd sheet (to
print) reaches the leading edge sensor (PS801).

2.5.2.3 Stationary Jams

2.5.2.3.1 Pickup Stationary Jam

CPU detects pickup stationary jam in the case that the sheet (to print) is detected 5.6 sec (approximately) after it reaches the leading edge sensor (PS801).

2.5.2.3.2 Delivery Stationary Jam

If 0.9 sec passes after the leading edge sensor (PS801) detects the paper absent and, in addition, the fixing delivery sensor (PS701) cannot detect the paper within
approx 0.4 sec after that, CPU determines the delivery stationary JAM.

2.5.2.4 Other Jams

2.5.2.4.1 Fixing Take-up Jam

CPU detects fixing take-up jam in the case that the fixing delivery sensor (PS701) detects absence of paper (no paper) for 0.9 sec (approximately) after the sheet
(to print) reaches the fixing delivery sensor (PS701) and the leading edge sensor (PS801) detects absence of paper (no sheet).

2.5.2.4.2 Remaining Jam at Start-up

CPU detects residual jam when meeting the following conditions:
- If either of the fixing delivery sensor (PS701), the paper width sensor (PS702) or the leading edge sensor (PS801) detects a sheet (to print) when the power is
turned ON or the door is open.
- If either of the fixing delivery sensor (PS701), the paper width sensor (PS702) or the leading edge sensor (PS801) detects a sheet (to print) after Auto Delivery*
is completed.
*Auto Delivery function
This function is to deliver the residual paper automatically when the delivery tray is opened at power-on or at a start of print operation.
During initial operation, if the leading edge sensor (PS801) detects the paper, CPU determines that there is the residual paper at startup and informs it to the main
controller, then stops a printer. After that, when the auto delivery is instructed by the main controller, CPU drives the motor and delivers the residual paper to the
outside of the machine.
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