Toshiba e-STUDIO556 Service Manual page 612

NO
Is the intermediate transport sensor working?
(Perform the input check in the test mode: 03-[FAX]OFF/[1]/[A])
NO 
l
l

YES
Is the transport motor rotating?
(Perform the output check in the test mode: 03-133,183)
NO 
YES
Check if the spring of the follower roller of the intermediate transport roller is working
properly.
Replace the registration roller (rubber) if not solved.
[E120] Bypass misfeeding (paper not reaching registration sensor)
Open the bypass unit cover. Is there any paper in front of the registration sensor?
YES  Remove the paper.

NO
Is the registration sensor working?
(Perform the input check in the test mode: 03-[FAX]ON/[4]/[E])
NO 
l
l
l
l
l
l
l
l

YES
Is the width of the side guides of the bypass unit too narrow?
Is the paper skewed?
YES  Match the width of the side guides and that of the paper.

NO
Is the bypass feed clutch working? (Perform the output check in the test mode: 03-204)
Is the bypass feed sensor working? (Perform the input check in the test mode: 03-
[FAX]OFF/[6]/[G])
e-STUDIO556/656/756/856/557/657/757/857
ERROR CODE AND TROUBLESHOOTING
1. Are paper dusts accumulated on the intermediate transport sensor?
2. Check if the harness is not damaged.
3. Check if the connector is disconnected.
Replace the transport motor.
1. Check if the connector of the transport motor is disconnected.
2. Check if the connector on the LGC board is disconnected.
3. Check if the connector pins are disconnected and the harnesses are
open circuited.
4. Check if the conductor pattern on the LGC board is short circuited or
open circuited.
5. Replace the LGC board.
1. Check if the connector of the registration sensor is disconnected.
2. Check if the connector CN341 on the LGC board is disconnected.
3. Check if the connector pins are disconnected and the harnesses are
open circuited.
4. Check if the conductor pattern on the LGC board is short circuited or
open circuited.
5. Replace the registration sensor.
6. Replace the LGC board.
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