Epson Aculaser C9200N, Service Manual

Page: 102 / 441

EPSON AcuLaser C9200N Revision D
Troubleshooting Jam Display 102
Confidential
3.2.3 Solution
INITIAL CHECK ITEMS
When a paper misfeed occurs, first make checks of the following initial check items
MISFEED AT FUSING/EXIT SECTION (A, B, H)
†
Detection Timing
†
Action
Table 3-1. Initial Check Items
Check Item Action
Does paper meet product specifications? Change paper.
Is paper curled, wavy, or damp. Change paper.
Instruct user in correct paper storage.
Is a foreign object present along the paper path, or is
the paper path deformed or worn? Clean or change the paper path.
Are the Paper Separator Fingers dirty, deformed, or
worn? Clean or change the defective Paper
Separator Finger.
Are rolls/rollers dirty, deformed, or worn? Clean or change the defective roll/roller.
Are the Edge Guide and Trailing Edge Stop at
correct position to accommodate paper? Set as necessary.
Are actuators found operational as checked for
correct operation? Correct or change the defective actuator.
Table 3-2. Detection Timing
Type Description
Detection of
misfeed at Fusing/
Exit Section PC2 is not unblocked even after the lapse of a given period of time after
the paper has blocked the Exit Sensor (PC2).
The Duplex Unit Transport Sensor 1 (PC1) is not blocked even after the
lapse of a given period of time after the Exit Sensor (PC2) has been
unblocked by the paper during a switchback sequence.
Detection of paper
left in Exit Section The Exit Sensor (PC2) is blocked when the Main Power Switch is turned
ON, a door or cover is opened and closed, or a misfeed or malfunction is
reset.
Table 3-3. Action
Relevant Electrical Parts
†
Exit Sensor (PC2)
†
Duplex Unit Transport Sensor 1 (PC1)
†
Duplex Control Board (PWB-A DU)
†
Mechanical Control Board (PWB-M)
Step Action
Connection Diagram
Control Signal
Location
(electrical
parts)
1 Initial check items --- ---
2 PC2 I/O check, Sensor check PWB-M CNTH2-8 (ON) C-14
3 PC1 I/O check, Sensor check --- U-18
4 Change PWB-A (p.312) --- ---
5 Change PWB-M (p.198) --- ---