Xerox 7142 Service Manual - page 271

RJ-901C/RJ-900C 　 Maintenance Manual

9 Troubleshooting

9-27

6

E 066 error

Y motor

Abnormal 

condition in 

CR motor (Y-

axis) during 

plotter 

operation.

Displayed if 

the difference 

between motor 

command 

value and 

feedback from 

encoder is 

large.

1. Check error history 

from "Test: Elec." 

of self-diagnosis 

function.

2. Move carriage in 

both directions 

while the plotter is 

turned off, and 

check if there is any 

position where 

carriage does not 

move smoothly. 

3. Set the number of 

endurance running 

cycles to 50 or more 

from "Life: CR 

motor" of self-

diagnosis function, 

and check if "Y 

motor error" occurs.

-

•

Clean and lubricate 

CR rail roller guide.

•

Check connection 

of following 

connectors. 

Main board: 

•

CR motor assembly 

connector: J106

•

CR cable connector: 

J110 - J114

CR board: 

•

CR cable connector: 

J201 - J205

•

TF_ENC assembly 

connector: J210

"5.4.7 

History 

Menu" p.5-17

"8.4 

Lubrication/

Bonding" 

p.8-6

"4.3.3 

Replacing 

Main Board 

Assembly" 

p.4-21

7

E 068 error

Y encoder

Abnormal 

condition in 

head travel 

distance (Y-

axis) during 

plotter 

operation.

Displayed if 

there is no 

feedback from 

encoder.

Table 9-7  Symptoms and Check Items for Mechanical Serious Errors (Continued)

No.

Message

Event/

symptom

Check item

Action

Reference