Toshiba E-STUDIO520, Service Manual, Page: 341 / 592

March 2005 © TOSHIBA TEC e-STUDIO520/600/720/850 TROUBLESHOOTING
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[E320] 3rd drawer transport jam (paper not reaching 2nd drawer transport sensor)
[E350] 4th drawer transport jam (paper not reaching 2nd drawer transport sensor)
[E3E0] Tandem LCF transport jam (paper not reaching 2nd drawer transport sensor)
Open the feed cover. Is there paper in front of the 2nd drawer transport sensor?
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YES
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If the paper is damaged, remove the paper and check the followings
1) Check if the paper is skewed, and correct it if it is skewed.
2) Check the paper amount.
3) Check if the paper is not the one with printing on its back side.
4) Check if the width of the side guides of the drawer is too narrow.
NO
Is the 2nd drawer transport sensor working?
(Perform the input check in the test mode: 03-[FAX]OFF/[2]/[C]
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NO
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1) Check if the connector of the 2nd drawer transport sensor is discon-
nected.
2) Check if the connector CN329 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 2nd drawer transport sensor.
6) Replace the LGC board.
YES
Are the transport clutches working?
(Perform the output check in the test mode: 03-210/225/231)
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NO
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1) Check if the connectors of the (lower/middle) transport clutches are
disconnected.
2) Check if the connector CN329,350 on the LGC board is discon-
nected.
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 (lower/middle) transport clutches.
6) Replace the LGC board.
YES
1) Check the condition of the feed roller, separation roller and pickup roller of each paper
source, and clean or replace them.
2) Check the transport roller. Clean or replace it.