Delay Jams; Stationary Jams; Other Jams - Canon MF3110 - ImageCLASS Laser Multifunction Service Manual

Chapter 2 Running H/F 5

2.4.2.2 Delay Jams

2.4.2.2.1 Pickup Delay Jam
If the top sensor does not detect the leading edge of paper within 1.2 sec after the start of pickup operation, the
machine initiates pickup operation once gain. The machine identifies a pickup delay jam if the top sensor does not
detect the leading edge of paper within 1.2 sec after the 2nd pickup operation.
2.4.2.2.2 Delivery Delay Jam
The machine identifies a delay jam if the delivery sensor does not detect the leading edge of paper within 1.615 sec
after the top sensor has detected the leading edge of paper.

2.4.2.3 Stationary Jams

2.4.2.3.1 Pickup Stationary Jam
The machine identifies a pickup stationary jam if the top sensor does not detect the absence of paper within 3.575
sec after the top sensor has detected the leading edge of paper.
2.4.2.3.2 Delivery Stationary Jam
The machine moves to a delivery stationary jam sequence if it does not detect a wrap jam.
The machine identifies a delivery stationary jam if the delivery sensor does not detect the trailing edge of paper for
1.715 sec after the top sensor has detected the trailing edge of paper.

2.4.2.4 Other Jams

2.4.2.4.1 Wrap Jam
The machine starts a wrap jam detection sequence in 0.1 sec if it does not detect a delivery delay jam.
It identifies a wrap jam if the delivery sensor detects the trailing edge of paper within 1.06 sec after the top sensor
has detected the trailing edge of paper.
The term "wrap jam" refers to paper that wraps around the fixing pressure roller; its leading edge passes through the
delivery sensor, but it jams thereafter. The machine is designed to identify such a jam so as to prevent wrapping paper
from fully moving into the fixing assembly.
2.4.2.4.2 Initial Jam
The machine identifies an initial jam if the top sensor or the delivery sensor detects the presence of paper when the
main motor starts to rotate.
2.4.2.4.3 Cover Open Jam
The machine identifies a cover open jam if it detects that the front cover is open with the top sensor or the delivery
sensor detecting the presence of paper (while paper is being moved or the machine is not running a jam check).
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