Epson AcuLaser C8500, Service Manual

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EPSON AcuLaser C8500 Revision C
Troubleshooting Level 1 FIP (Fault Isolation Procedure) 5-37
FIP-1.12 Size Mismatch FIP-1.12 Size Mismatch FIP-1.12 Size Mismatch FIP-1.12 Size Mismatch
Step Check
Treatment
Yes No
1
*Initial setting
Use of parts of non-EPSON specifications, improper mounting, damage, distortion, dirt,
adherence of foreign matter?
*Main parts to check
SIZE SWITCH ASSY, MAIN P/H ASSY, REGI. SENSOR
CASSETTE SIZE ACTUATOR, END GUIDE, MCU PWB
Replace and remount the
concerned part(s).
Go to step 2.
2
*Engine and controller division check
Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed
normally with the engine alone?
Printer controller check
(If an error still occurs
after replacing, go to
step 3.)
Go to step 3.
3
*Paper size check
Are you using the correct paper size in accordance with the specifications?
Go to step 4.
Use the correct paper in
accordance with the
specifications.
4 Is paper being supplied from the MSI tray? Go to step 5 Replace the MCU PWB.
5
*MSI paper size setting check
Does the paper size set by the DIAG tool or controller agree with the paper size set for the
MSI tray?
Go to step 6.
Alter the setting to agree
with the actual paper size.
6
*Paper size detection mechanism check
Does the paper size set in the concerned tray agree with the ON/OFF combination of the 4
Paper Size Switches on the SIZE SWITCH ASSY?
• Make sure the TRAY SIZE ACTUATOR works together with the END GUIDE. Check if the
Cassette SIZE ACTUATOR pushes the Paper Size Switch in when the tray is mounted.
(The Paper Size Switch is pushed in if the paper has resistance when inserted on the
SIZE SWITCH ASSY from the rear.)
„
With tool:
Go to step 7.
„
Without tool:
Go to step 8.
If the problem still occurs
after performing the
following treatment, go
to FIP-2.25
Replace the faulty part(s).
7
*Paper size check
Does the size of the paper mounted in the concerned paper cassette agree with the Paper
Size Switch data?
• By using the DIAG tool, check by Digital Input Test device code “02”.
„
With tool:
Go to step 8.
„
Without tool:
Go to FIP-2.25
Replace the faulty part(s)