Canon LBP351 Series Service Manual page 38

The printer detects the following jams.
1. Pickup delay jam 1
At paper pickup, the Registration Sensor (PS103) does not detect the paper leading edge although a specified period of time
has passed.
2. Pickup delay jam 2
At the start of the pickup operation, sensors (PS102/PS1603/PS1704) do not detect the paper leading edge although a
specified period of time has passed.
3. Pickup delay jam 3
The sensors (PS1603/PS1704) do not detect the paper leading edge although a specified period of time has passed.
* It occurs in the Cassette 3, 4, and 5.
4. Pickup stationary jam 1
• a. Registration Sensor detection
The Registration Sensor (PS103) does not detect the trailing edge although a specified period of time has passed.
• b. Paper Width Sensor detection
When the Registration Sensor (PS103) detects the trailing edge, the Paper Width Sensors (PS106 and PS108) on both
edges do not detect the trailing edge although a specified period of time has passed.
5. Fixing delivery delay jam
The Fixing Outlet Sensor (PS700) does not detect the leading edge although a specified period of time has passed after the
Registration Sensor (PS103) detects the leading edge.
6. Fixing delivery stationary jam
The Fixing Outlet Sensor (PS700) does not detect the trailing edge although a specified period of time has passed after the
Registration Sensor (PS103) detects the trailing edge.
7. Internal stationary jam 1
The sensors detected paper while waiting for the operation to start.
8. Internal stationary jam 2
• The sensors detected paper when the print operation was completed.
• The stop command was received after the pickup operation started.
9. Cover open jam
The cover open was detected after the pickup operation started.
10. Wrapping jam
The time from when the Fixing Outlet Sensor (PS700) detected the paper leading edge until the OFF status of the sensor
was detected was shorter than the predetermined time.
11. Double feed jam
The Envelope Pickup Sensor (PS1802) detected double feeding.
12. Duplex delay jam
Duplex Re-pickup Sensor (PS1502) delay jam at 2-sided pickup
13. Duplex stationary jam
Duplex Re-pickup Sensor (PS1502) stationary jam at 2-sided pickup
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2. Technical Explanation (Device)