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Troubleshooting > Error Codes > Jam Codes
Troubleshooting > Error Codes > Jam Codes
Error Code Detail Code Main Cause/Detection Content Condition/Countermeasure
E748 2012 Failed to rewrite due to no more
alternative block of Flash ROM
(NAND) available.
Replace the Controller board.
4000 G-Chip loopback ended in
timeout.
Replace the Main Controller
4020 Unknown device has been
detected on PCI.
Replace the Controller board.
E760 0000 CPU exception occurred. Turn on the power again.
E805 0001 Fan1 failure Replace
the Fan1
0002 Fan2 failure Replace the Fan2
E808 0001 Low-voltage power supply failure Replace the Low-voltage power
supply unit.
Jam Codes
Jam Code Cause Jam Position
High Order Low Order
84 Paper feed delay jam 1 –
85 Paper feed delay jam 2
86 Paper feed delay jam 3
88 Paper feed retention jam 1 –
8C Fixing output delay jam 1 –
8D Fixing output delay jam 2
90 Fixing output retention jam 1 –
94 Internal paper jam 1 –
95 Internal paper jam 2
98 Door open jam 1 –
9C Wind-up jam 1 –
A4 Reversal unit jam 1 –
00 – Unknown area
01 – Feed slot 1 – resist position area
02 – Feed slot 2 – resist position area
03 – Feed slot 3 – resist position area
04 Feed slot 4– resist position area
07 – Resist position – cartridge area
08 – Cartridge – xing roller area
09 – Fixing unit roller – paper output unit area
0C – Duplex reverse unit and adjacent area
0D – Duplex Feed unit and adjacent area
0E – Duplex reload unit and adjacent area
T-5-30
T-5-31
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