Toshiba DP4500 Service Handbook page 107

[E13] Upper cassette misfeeding (paper not reaching the upper feed sensor)
Open the jam access cover. Is there any paper in front of the upper feed sensor?
YES
NO
Is the upper feed sensor working? (Perform the input check in the test mode: 03-[FAX]OFF/[6]/[E])
NO
YES
Is the upper cassette feed clutch working?
(Perform the output check in the test mode: 03-201)
NO
YES
Check the upper cassette feed roller and separation roller. Replace them if they are worn out.
DP4500/3500 TROUBLESHOOTING
Remove the paper.
1. Check if the connector of the upper feed sensor is disconnected.
2. Check if the connector J313 on the LGC board is disconencted.
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- or open-circuited.
5. Replace the upper feed sensor.
6. Replace the LGC board.
1. Check if the connector of the upper cassette feed clutch is disconnected.
2. Check if the connector J310 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- or open-circuited.
5. Replace the upper cassette feed clutch.
6. Replace the LGC board.
5 - 12 December 2000 © TOSHIBA TEC