![background image](http://html.mh-extra.com/html/epson/stylus-color-900/stylus-color-900_service-manual_109626088.webp)
EPSON Stylus Color 900
Revision C
Troubleshooting
Overview
88
3.1.1.5 Remedies for Fatal Error
A fatal error is basically caused by any of the following conditions:
1. The printer does not detect the carriage in the home position.
2. The printer does not detect signals from the linear scale.
3. The ASF sensor does not detect the ASF home position.
The following tables show various causes of the error and
corresponding solutions. Be sure to follow the steps correctly to solve
the problems.
NOTE: If the finding for the question is Yes, take the action described in
the right column. If “No”, proceed to the next step.
Table 3-13. Remedies for Fatal Error
Table 3-14. Remedies for Fatal Error
Step
Check Point
Actions
1
Has the CRHP
sensor come off the
printer mechanism
frame?
Is the connector for
the CRHP sensor
disconnected?
Check the CRHP sensor visually. Connect the
connector properly. Make sure the connector is
connected to the indicated position on the relay
board. Also, check that there is no dust nor paper
debris between the sensor parts.
2
Has the encoder belt
come off?
Referring to step 2 in Section 3.1.2.2, check that the
encoder belt is set between the sensor parts. Also
check that the sensor is free from dust and paper
debris.
M/
C
M
/C
C
R
H
P
E
A
S
F
R
E
D
W
H
T
B
LK
M
/C
C o n n e c t o r 1
C o n n e c t o r 2
M e c h a n i s m
F r a m e
Step
Check Point
Actions
3
Has the ASF sensor
come off?
Is the sensor for the
ASF disconnected?
Referring to the figure below, check that the ASF
sensor is attached to the correct position.
Check that both connectors 1 and 2 are securely
connected.
4
Has the coil for the
CR motor burnt?
Since the CR motor is controlled by the Bipolar
system, measure the coil resistance using the tester
as shown below.
<Resistance: 5.8
Ω
±
10%>
Note: Be
sure to
measure the
resistance at
two points
shown in the
figure below.
5
Has the coil for the
PF motor burnt?
Measure the internal coil resistance of the PF motor
in the same manner as for the CR motor.
<Resistance: 8.1
Ω
±
10%>
M/
C
M
/C
C
R
H
P
E
A
S
F
R
E
D
W
H
T
B
LK
M
/C
A S F S e n s o r
A S F F r a m e
( L e f t )
C o n n e c t o r 1
C o n n e c t o r 2
T o P i n 1
T o P i n 3
S t e p 1
S t e p 2
T o P i n 2
T o P i n 4
C R M o t o r
Summary of Contents for Stylus Color 900
Page 1: ...EPSONStylusColor900 RevisionC Color ink jet printer SEIJ98006 ...
Page 8: ...Component Layout 180 Parts List 184 Exploded Diagrams 187 Circuit Diagrams 195 ...
Page 9: ... PRODUCTDESCRIPTION ...
Page 43: ... OPERATINGPRINCIPLES ...
Page 78: ... TROUBLESHOOTING ...
Page 101: ... DISASSEMBLYANDASSEMBLY ...
Page 130: ... ADJUSTMENT ...
Page 161: ... MAINTENANCE ...
Page 171: ... APPENDIX ...
Page 183: ...EPSON Stylus Color 900 Revision c Appendix Component Layout 183 Figure 7 6 C265 PNL Board ...
Page 194: ...06 03 01 02 for S E ASIA 03 03 05 03 04 EPSON STYLUS COLOR 900 No 7 10056 Rev 01 ...
Page 196: ......
Page 197: ......
Page 198: ......
Page 199: ......
Page 200: ......