Delivery Stationary Jam; Reversing Delay Jam; Reversing Stationary Jam; Duplex Pickup Delay Jam - Canon LASER CLASS 730i Service Manual

3.2.4 Delivery stationary jam

a. When WAIT period starts
The CPU assesses a delivery stationary jam if the delivery sensor detects paper when the
WAIT period starts.
b. During paper feeding
The CPU assesses a delivery stationary jam if the delivery sensor does not detect the
trailing edge of the paper within a specified period of time (T) after the top-of-page sensor
detects the trailing edge.
• Paper 200 mm or more: T= about 2.7 seconds
• Paper less than 200 mm: T= about 5.2 seconds
c. When a pick-up delay jam occurred
When a pick-up delay jam occurred, the machine enters the LAST ROTATION period to
deliver the jammed paper. During this period, the CPU assesses a delivery stationary jam if
the delivery sensor does not detect the trailing edge of the paper within 8 seconds after the
completion of the forced laser emission.
d. During pressure roller cleaning
During pressure roller cleaning, the CPU assesses a delivery stationary jam if the delivery
sensor does not detect the trailing edge of the paper within 8 seconds after the 35th feed
operation.

3.2.5 Reversing delay jam

The CPU assesses a reversing delay jam if the reverse paper sensor does not detect the leading
edge of the paper within 3.4 seconds after the reverse motor starts rotating in the
counterclockwise.

3.2.6 Reversing stationary jam

The CPU assesses a reversing stationary jam when the reverse paper sensor detects recording
paper after duplex pickup operation has been performed for about 0.77 seconds.

3.2.7 Duplex pickup delay jam

The CPU assesses a duplex pickup delay jam if the duplex paper sensor does not detect the
paper within 4.9 seconds after the reverse paper sensor detects the leading edge.

3.2.8 Duplex pickup stationary jam

After the start of the duplex pickup, if the duplex paper sensor detects recording paper after
about 3.4 seconds has passed subsequently to the detection of the trailing edge by the reverse
paper sensor, the CPU assesses a duplex pickup stationary jam.
LASER CLASS 730i/720i/710 Chapter 2: Technical Reference
2-13
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