Xerox 7142 Service Manual page 249

RJ-901C/RJ-900C Maintenance Manual
Table 9-2 Events and Check Items for Operation Status Messages(Continued)
No. Message
2
3 No media
Event/ Check item
symptom
9. Check cover sensor
assembly operation
from "Sen: Cover"
of self-diagnosis
function.
10. Check lever sensor
operation from
"Sen: Lever" of self-
diagnosis function.
11. Main board
assembly may be
damaged.
Displayed in 1. Is P_EDGE sensor
the following assembly cable at
cases: the head section
• When connected
media is correctly?
not set
2. Is P_REAR sensor
• When
assembly under
printing
media guide R
finishes in
connected
cut media
correctly?
mode
3. Check sensor
sensitivity from
"Sen: PaperEdge
AD" of self-
diagnosis function.
4. CR board assembly
may be damaged.
5. Check presence of
media from "Sen:
PaperRear AD" of
self-diagnosis
function.
6. CR cable may be
broken.
Replace cover sensor
assembly.
Replace lever sensor
assembly.
Replace main board
assembly.
Securely connect it to
CR board assembly
connector J211.
Securely connect it to
main board assembly
connector J114.
Adjust with main board
assembly volume
(R117, R119).
Replace P_EDGE
sensor assembly.
Replace CR board
assembly.
When "No media" is
displayed even if media
is set, replace P_REAR
sensor assembly.
Replace CR cable.
9-5
9 Troubleshooting
Action Reference
"4.8.3
Replacing
Cover Sensor
Assembly"
p.4-60
"4.5.4
Replacing T
Fence" p.4-33
"4.3.3
Replacing
Main Board
Assembly"
p.4-21
"4.10.1
Replacing CR
Board
Assembly"
p.4-64
"4.3.3
Replacing
Main Board
Assembly"
p.4-21
"7.11.1
P_EDGE
Sensor
Sensitivity
Adjustment"
p.7-34
"4.10.1
Replacing CR
Board
Assembly"
p.4-64
"4.9.2
Replacing
P_REAR
Sensor
Assembly"
p.4-63
"4.10.3
Replacing CR
Tape Wire"
p.4-68