Streaked horizontal or vertical lines appear on prints check
Actions
Yes
No
Step 1
Check the imaging unit for wear or damage.
Is it free of wear or damage?
Go to step 2.
Replace the imaging
unit.
Step 2
Make sure the paper path is free of debris or toner contamination.
Does the problem remain?
Go to step 3.
The problem is solved.
Step 3
Check the transfer roll for contamination or excessive wear.
Is it free of contamination or wear?
Go to step 4.
Replace the transfer
roll. See
“Transfer roll
removal” on page
194
.
Step 4
Remove the fuser and check for damage or debris on the rollers and belts.
Is it free of damage and debris?
Go to step 5.
Replace the fuser. See
“Fuser removal” on
page 238
.
Step 5
Reseat the cables JVIDEO1 and JGLV on the controller board.
Does the problem remain?
Replace the LSU. See
“Laser scanning unit
(LSU) removal” on
page 240
.
The problem is solved.
Toner smear check
Leading edge
Trailing edge
ABC
DEF
4514
Diagnostic information
38
Summary of Contents for M1140
Page 18: ...4514 18 ...
Page 20: ...4514 20 ...
Page 142: ...4514 142 ...
Page 197: ...b Set the spring over the plunger 4514 Repair information 197 ...
Page 204: ...3 Squeeze the latches B to release the left and right links B 4514 Repair information 204 ...
Page 228: ...10 Remove the screw C and then detach the trailing edge sensor A 4514 Repair information 228 ...
Page 229: ...11 Disconnect the two springs D 4514 Repair information 229 ...
Page 246: ...3 Swing the right cover backward to remove 4 Remove the screw D 4514 Repair information 246 ...
Page 248: ...4514 248 ...
Page 253: ...4514 253 ...
Page 255: ...Assembly 1 Covers 4514 Parts catalog 255 ...
Page 257: ...Assembly 2 Electronics 1 4514 Parts catalog 257 ...
Page 259: ...Assembly 3 Electronics 2 4 3 2 1 6 5 4514 Parts catalog 259 ...
Page 261: ...4514 Parts catalog 261 ...
Page 262: ...Assembly 4 Frame 4514 Parts catalog 262 ...
Page 264: ...4514 Parts catalog 264 ...
Page 265: ...Assembly 5 Option trays 3 4 5 6 1 2 4514 Parts catalog 265 ...
Page 268: ...4514 Parts catalog 268 ...
Page 270: ...4514 270 ...
Page 274: ...4514 274 ...
Page 276: ...4514 276 ...
Page 298: ...4514 Part number index 298 ...
Page 302: ...4514 Part name index 302 ...
Page 303: ......