Xerox 7142 Service Manual page 275

RJ-901C/RJ-900C Maintenance Manual
Table 9-7 Symptoms and Check Items for Mechanical Serious Errors (Continued)
No. Message
16 E 078 error
H cable
17 E 097 error
NVRAM
18 E 161 error Y
life
Event/ Check item
symptom
Abnormal 1. Check connection
condition in of head cable
head cable or connectors on CR
head board assembly side
thermistor. and head side.
• Is head cable
inserted obliquely?
• Is it locked
securely?
2. Is head cable
broken?
3. Head thermistor
may be faulty.
Abnormal
condition in
NVRAM.
Carriage motor 1. Turn machine OFF.
has reached the Turn it ON again
end of life. and check if the
same message
appears.
2. The number of
endurance running
cycles of carriage
motor has reached
the specified value.
3. Main board
assembly may be
damaged.
Reconnect head cable.
Replace head cable.
Replace Print head
assembly.
Replace main board
assembly.
If message appears:
Refer to action in check
item No. 2.
Replace Carriage motor
Replace main board
assembly.
9-31
9 Troubleshooting
Action Reference
"4.6.1
Replacing
Print Head"
p.4-37
"4.10.1
Replacing CR
Board
Assembly"
p.4-64
"4.6.1
Replacing
Print Head"
p.4-37
"4.10.1
Replacing CR
Board
Assembly"
p.4-64
"4.6.1
Replacing
Print Head"
p.4-37
"4.3.3
Replacing
Main Board
Assembly"
p.4-21
-
"4.5.1 CR
Motor
Assembly"
p.4-30
"4.3.3
Replacing
Main Board
Assembly"
p.4-21