Delay Jams; Stationary Jams; Other Jams; Cassette Pickup - Canon 3370 Series Service Manual

2.5.2.2 Delay Jams

2.5.2.2.1 Pick-up delay jam

LBP3370 / LBP3310
The printer performs the retry control, which executes pick-up operation twice, in order to relief the pick-up delay jam caused by pick-up error.
When the top of page sensor (PS912) cannot detect the leading edge of the paper within approx. 2.4 sec. (1.9 sec. for the MPT, 3.0 sec. for the optional cassette)
after when the pick-up solenoid (SL1) is turned ON, the CPU retries the pick-up operation twice. The CPU determines a pick-up delay jam, when the top of page
sensor (PS912) cannot detect the leading edge again within another approx. 2.4 sec. (1.9 sec. for the MPT, 3.0 sec. for the optional cassette).

2.5.2.2.2 Delivery delay jam

LBP3370 / LBP3310
The CPU determines the delivery delay jam, when the leading edge of the paper does not reach the delivery sensor (PS915) within approx. 1.4 sec. after when the
top of page sensor (PS912) detects the leading edge.

2.5.2.2.3 Reversing delay jam

LBP3370 / LBP3310
The CPU starts the reversing delay jam detection after it determined no wrapping jam.
The CPU determines the reversing delay jam, when the reversing sensor (PS915) does not detect the leading edge of the reversed paper within approx. 1.3 sec. after
when the delivery sensor (PS915) detects the trailing edge of the paper.

2.5.2.3 Stationary Jams

2.5.2.3.1 Pick-up stationary jam

LBP3370 / LBP3310
The CPU determines the pick-up stationary jam, when the top of page sensor (PS912) cannot detect the trailing edge of the paper within approx. 3.9 sec. after de-
tecting the leading edge.

2.5.2.3.2 Delivery stationary jam

LBP3370 / LBP3310
The CPU starts the delivery stationary jam detection after it determined no wrapping jam.
The CPU determines the delivery stationary jam, when the delivery sensor (PS915) does not detect the absence of the paper within approx. 1.5 sec. at all after the
top of page sensor (PS912) detected the trailing edge.

2.5.2.3.3 Reversing stationary jam

LBP3370 / LBP3310
The CPU determines the reversing stationary jam, when the reversing sensor (PS912) does not detects the trailing edge of the paper within approx. 2.5 sec. after
when the reversing sensor (PS915) detects the leading edge of the paper.

2.5.2.4 Other Jams

2.5.2.4.1 Wrapping jam

LBP3370 / LBP3310
The CPU starts the wrapping jam detection after it determined no delivery delay jam.
The CPU determines the wrapping jam, when the delivery sensor (PS915) detects the absence of paper after 0.1 sec. after when the delivery sensor (PS915) detests
the leading edge of the paper, and within approx. 1.1 sec. after when the top of page sensor (PS912) detects the trailing edge of the paper.

2.5.2.4.2 Start-up residual jam

LBP3370 / LBP3310
The CPU determines the start-up residual jam, when the top of page sensor (PS912) or the delivery sensor/reversing sensor (PS915), the paper width sensor (PS913),
or the paper width sensor 2 (PS911) detects a print paper upon the initial rotation period is started.

2.5.2.4.3 Door open jam

LBP3370 / LBP3310
The CPU determines the door open jam, when the top of page sensor (PS912) or the delivery sensor/reversing sensor (PS915) detects a paper upon the door open
is detected.

2.5.3 Cassette Pickup

2.5.3.1 Cassette pick-up

LBP3370 / LBP3310
The cassette pick-up picks a print paper in the cassette up one by one into the printer.
The cassette paper out detection sensor detects the presence of print paper in the cassette.
The inclined wall separation and the pad separation are utilized to prevent a multiple-feed of paper.
The cassette pick-up operation is explained in the following.
1) The engine controller rotates the main motor (M1) when the video controller inputs the print command.
Chapter 2
0018-3123
0018-3124
0018-3125
0018-3126
0018-3127
0018-3128
0018-3129
0018-3130
0018-3131
0018-3132
2-15