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Technical Reference > Pickup/Feed/Delivery System > Detecting Jam > Other Jams
Detecting Jam
■ Jam Detection Outline
Outline
The following is the detection sensors for paper, to detect whether there is paper or not, and
whether the paper is properly fed.
• Registration detection sensor
• Multi manual feed tray pre registration detection sensor
• Fixing delivery detection sensor
• Loop detection sensor
• Pre-registration detection sensor
• Cassette paper detection sensor
• Multi manual feed tray paper detection sensor
• Delivery full detection sensor
• Paper feeder pre-registration detection sensor
The following is the jam that detected by the host machine.
1. Pickup delay jam
2. Pickup stationary jam
3. Fixing delivery delay jam
4. Delivery stationary jam
5. Fixing wrapping-over jam
6. Inside stationary jam.
7. Duplex re-pickup jam.
8. Door open jam.
■ Delay Jams
● Pickup delay jam 1
If the registration sensor (SR4) cannot detect the paper leading edge after the image format
starts until the re-pickup is started.
● Pickup delay jam 2
The manual feed tray pre-registration sensor (SR7) cannot detect the paper leading edge
within a specified time after manual feed tray pickup starts.
● Fixing delivery delay jam
The fixing delivery sensor (SR8) cannot detect the paper leading edge within a specified time
after the re-pickup starts.
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Technical Reference > Pickup/Feed/Delivery System > Detecting Jam > Other Jams
The delivery full sensor (SR15) cannot detect the paper leading edge within a specified time
after the registration sensor (SR4) detects the paper trailing edge.
■ Stationary Jams
● Pickup stationary jam
If the registration sensor (SR4) cannot detect the paper trailing edge after the re-pickup is
started.
● Fixing delivery stationary jam
If within a specified time after the registration sensor (SR4) detects the paper trailing edge,
the fixing delivery sensor (SR8) cannot detect the paper trailing edge.
■ Other Jams
● Fixing wrapping-up jam
If the fixing delivery sensor (SR8) cannot detect the paper, after it detects paper leading edge
until the fixing delivery stationary starts the detection.
● Inside stationary jam 1
If during power ON/door close, paper feeder pre-registration sensor (SR1)/registration sensor
(SR4)/manual feed tray registration sensor (SR7)/fixing delivery sensor (SR8)/fixing loop
sensor (SR10)/pre-registration sensor (SR12)/cassette paper sensor (SR13) detect paper.
● Inside stationary jam 2
If before/after printing, paper feeder pre-registration sensor (SR1)/registration sensor (SR4)/
manual feed tray registration sensor (SR7)/fixing delivery sensor (SR8)/fixing loop sensor
(SR10)/pre-registration sensor (SR12) detect paper.
● Duplex re-pickup jam
If the registration sensor (SR4) cannot detect the paper leading edge in a specified time after
reversal starts.
● Door open jam
During printing, if each sensor detects paper when the door-open is detected.
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