Toshiba e-STUDIO6520C Service Handbook page 455

[EF25] Paper trailing edge detection abnormality
Is there any paper remaining on the paper transport path? Is it staying at the position shown
below?
YES
NO
Are the paper position sensors (S6-1 and S6-2) obstructed by paper dust or punching
scraps?
YES
NO
Are the paper position sensor (S6-1 and S6-2) and its wiring correct?
NO
YES
Replace the hole punch control PC board (HP).
[EF27] Paper position detection error 1
[EF28] Paper position detection error 2
Is there any paper remaining on the transport path?
YES
NO
Are the skew sensor (S7-1 and S7-2) and its wiring correct?
NO
YES
Replace the hole punch control PC board (HP).
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Paper
Fig. 6-4
Figure out the cause of the paper stopping (e.g. folding) and correct it.
Then remove the paper.
Remove the obstruction from the sensors.
Replace the sensor. Correct the wiring.
Remove the paper, not leaving any chips.
Replace the sensor. Correct the wiring.
6 - 73
Skew sensor
(S7-1, S7-2)
Paper position sensor
(S6-1, S6-2)
Skew sensor
(S7-1, S7-2)
e-STUDIO5520C/6520C/6530C
ERROR CODE and TROUBLESHOOTING
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