Wrapping Jam - Canon i-SENSYS MF4300dn Service Manual

Chapter 7

7.3.4.2 Wrapping Jam

0020-2705
i-SENSYS MF4300dn / i-SENSYS MF4350d / i-SENSYS MF4380dn / i-SENSYS MF4310/4318 / i-SENSYS MF4320d / i-SENSYS MF4330d / i-SENSYS
MF4340d / i-SENSYS D450d / i-SENSYS MF4370dn
CPU executes the wrapping jam detection after it judges there is no delivery delay jam present.
If the delivery sensor (PS803) detects the trailing edge of paper within the predetermined time (from after about 0.08 sec since the detection of the paper leading
edge by the delivery sensor (PS803) until about 1.09 sec after the detection of the paper trailing edge y the leading edge sensor (PS801)), CPU judges as the wrapping
jam.
If it judges as the wrapping jam, it notifies the occurrence of the delivery stationary jam to the SCNT PCB.
7-4