Toshiba e-STUDIO350 Service Handbook page 466

[E742] Jam not reaching the reverse sensor (feeding in reverse)
Is the reverse roller stained?
YES
NO
Is the reverse sensor working? (Perform the input check: 03-[FAX]ON/[7]/[F])
| NO
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YES
Replace the RADF board.
[E743] Jam not reaching the exit sensor (feeding in reverse)
Are the reverse roller and read roller stained?
YES
NO
Is the exit sensor working? (Perform the input check: 03-[FAX]ON/[7]/[E])
| NO
|
|
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|
YES
Replace the RADF board.
[E860] Jam access cover open
Is the jam access cover opened?
YES
NO
Is the jam access cover switch working? (Perform the input check: 03-[FAX]ON/[7]/[C])
| NO
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|
|
|
|
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|
YES
Replace the RADF board.
e-STUDIO350/352/353/450/452/453
TROUBLESHOOTING
Clean the roller.
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.
Clean the roller.
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.
Remove the original, if any, and close the jam access cover.
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.
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