Epson AcuLaser C9200N Service Manual page 106

EPSON AcuLaser C9200N
MISFEED AT DUPLEX TRANSPORT SECTION (DUPLEX OPTION) (D, A)
Detection Timing
Table 3-12. Detection Timing
Type
Detection of The Duplex Unit Transport Sensor 2 (PC2) is not blocked even after the
misfeed at Duplex lapse of a given period of time after the paper has blocked the Duplex Unit
Transport section Transport Sensor 1 (PC1).
The Duplex Unit Transport Sensor 1 (PC1) is not unblocked even after the
lapse of a given period of time after it has been blocked by the paper.
The Duplex Unit Transport Sensor 2 (PC2) is not unblocked even after the
lapse of a given period of time after it has been blocked by the paper.
Detection of paper Duplex Unit Transport Sensor 1 (PC1DU) or Duplex Unit Transport
left in Duplex Sensor 2 (PC2DU) is blocked when the Power Switch is turned ON, a
Transport Section cover is opened and closed, or a JAM or malfunction is reset.
Action
Duplex Unit Transport Sensor 1 (PC1 DU)
Duplex Unit Transport Sensor 2 (PC2 DU)
Duplex Unit Switchback Motor (M1 DU)
Step Action
1 Initial check items
2 PC1 I/O check, Sensor check
3 PC2 I/O check, Sensor check
4 M1 operation check
5 M2 operation check
6 Change PWB-A (p.312)
7 Change PWB-M (p.198)
Troubleshooting
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Description
Table 3-13. Action
Relevant Electrical Parts
Duplex Unit Transport Motor (M2 DU)
Duplex Control Board (PWB-A DU)
Mechanical Control Board (PWB-M)
Connection Diagram
Control Signal
---
---
---
PWB-A DU PJ4A DU-1 to 4
PWB-A DU PJ5A DU-1 to 4
---
---
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JAM AT DUPLEX PRE-REGISTRATION SECTION (DUPLEX UNIT) (D, A,
G)
Detection Timing
Type
Detection of Misfeed at
Duplex pre-registration
section
Detection of Loop
Registration Reversing
JAM at Duplex pre-
registration section
Action
Registration Roller Sensor (PC1)
Duplex Unit Switchback Motor (M1 DU)
Duplex Unit Transport Motor (M2 DU)
Step
1 Initial check items
Location
2 PC1 I/O check, Sensor check
(electrical parts)
3 M1 operation check
---
4 M2 operation check
U-18
5 Change PWB-A
U-18
6 Change PWB-M
V-19
V-19
---
---
Jam Display
Table 3-14. Detection Timing
Description
The Registration Roller Sensor (PC1) is not blocked even after the
lapse of a given period of time after a Duplex paper feed sequence
has been started.
The Registration Roller Sensor (PC1) is not shaded even when the
specified period of time has passed after the Feed Roller started
rotating to re-feed paper.
Table 3-15. Action
Relevant Electrical Parts
Duplex Control Board (PWB-A DU)
Mechanical Control Board (PWB-M)
Connection Diagram
Action
Control Signal
---
---
PWB-A DU PJ4A DU-1 to 4
PWB-A DU PJ5A DU-1 to 4
(p.312) ---
(p.198) ---
Revision D
Location
(electrical parts)
---
U-18
V-19
V-19
---
---
106
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