e-STUDIO350/352/353/450/452/453
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TROUBLESHOOTING
5 - 30
[E742] Jam not reaching the reverse sensor (feeding in reverse)
[E743] Jam not reaching the exit sensor (feeding in reverse)
[E860] Jam access cover open
Is the reverse roller stained?
È
YES
Æ
Clean the roller.
NO
Is the reverse sensor working? (Perform the input check: 03-[FAX]ON/[7]/[F])
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È
NO
Æ
1) Check if the connector of the reverse sensor is disconnected.
2) Check if the connector CN4 on the RADF board is disconnected.
3) Check if the connector pins are disconnected or the harnesses are open
circuited.
4) Check if the conductor pattern on the RADF board is short circuited or open
circuited.
5) Replace the reverse sensor.
6) Replace the RADF board.
YES
Replace the RADF board.
Are the reverse roller and read roller stained?
È
YES
Æ
Clean the roller.
NO
Is the exit sensor working? (Perform the input check: 03-[FAX]ON/[7]/[E])
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È
NO
Æ
1) Check if the connector of the exit sensor is disconnected.
2) Check if the connector CN4 on the RADF board is disconnected.
3) Check if the connector pins are disconnected or the harnesses are open
circuited.
4) Check if the conductor pattern on the RADF board is short circuited or open
circuited.
5) Replace the exit sensor.
6) Replace the RADF board.
YES
Replace the RADF board.
Is the jam access cover opened?
È
YES
Æ
Remove the original, if any, and close the jam access cover.
NO
Is the jam access cover switch working? (Perform the input check: 03-[FAX]ON/[7]/[C])
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È
NO
Æ
1) Check if the connector of the jam access cover switch is disconnected.
2) Check if the connector CN8 on the RADF board is disconnected.
3) Check if the connector pins are disconnected or the harnesses are open
circuited.
4) Check if the conductor pattern on the RADF board is short circuited or open
circuited.
5) Replace the jam access cover switch.
6) Replace the RADF board.
YES
Replace the RADF board.