December 2005 © TOSHIBA TEC e-STUDIO163/203 TROUBLESHOOTING
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[E21] Paper fed from the PFU drawer not reaching the registration sensor
Open the transfer cover. Is there paper in front of the registration sensor?
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YES # Remove the paper.
NO
Is the registration sensor working?
(Perform the input check in the test mode: 03-[INTERRUPT]OFF/[9]/[6]
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NO # 1) Check if the connector of the registration sensor is disconnected.
2) Check if the connector CN26 on the MAIN 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 MAIN board is short circuited or
open circuited.
5) Replace the registration sensor.
6) Replace the MAIN board.
YES
Are the PFU transport clutches (High speed/Low speed) working?
(Perform the output check in the test mode: 04-203, 205)
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NO # 1) Check if the connectors of the PFU transport clutches (High speed/
Low speed) are disconnected.
2) Check if the connector CN4 on the MAIN 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 MAIN board is short circuited or
open circuited.
5) Replace the PFU transport clutches (High speed/Low speed).
6) Replace the MAIN board.
YES
1) Check the condition of the pickup roller of paper source, and replace it if it is worn out.
2) Check the transport roller. Replace it if it is worn out.
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