Xerox 7142, Service Manual

Page: 273 / 341

RJ-901C/RJ-900C Maintenance Manual 9 Troubleshooting
9-29
11 E 073 error
Y origin CR_HP
detection is not
possible. 1. Check CR_HP
sensor from "Sen:
CR Origin" of self-
diagnosis function.
• Check connection
of CR_HP sensor
cable assembly
connector. "5.4.4
Sensor
Menu" p.5-13
2. CR_HP sensor may
be damaged.
• Replace CR_HP
sensor. "4.5.2
Replacing
CR_HP
Sensor" p.4-
31
3. Main board
assembly may be
damaged.
• Replace main board
assembly "4.3.3
Replacing
Main Board
Assembly"
p.4-21
12 E 074 error
cover Abnormal
condition in
cover sensor. 1. Check cover sensor
from "Sen: Cover"
of self-diagnosis
function.
• Check connection
of cover sensor
assembly
connector. "5.4.4
Sensor
Menu" p.5-13
2. Cover sensor
assembly may be
damaged.
• Replace cover
sensor assembly. "4.8.3
Replacing
Cover Sensor
Assembly"
p.4-60
13 3. Main board
assembly may be
damaged.
• Replace main board
assembly. "4.3.3
Replacing
Main Board
Assembly"
p.4-21
Table 9-7 Symptoms and Check Items for Mechanical Serious Errors (Continued)
No. Message Event/
symptom
Check item Action Reference