Sensor (input) early/late arriving service check
Action
Yes
No
Step 1
Check the paper source.
Is the paper from the MPF?
Go to step 2.
Go to step 5.
Step 2
Check the MPF pick roller and separator pad for damage and
contamination.
Are they free of damage and contamination?
Go to step 3.
Replace the MPF pick
roller and separator
pad. See
“MPF pick
roller removal” on
page 206
and
“Separator pad
removal” on page
214
.
Step 3
Check the MPF solenoid for proper operation:
a
Remove the left cover.
b
Perform a print job from the MPF.
c
Check if the MPF solenoid moves when doing the feed test.
Does it move when doing the feed test?
Go to step 4.
Replace the MPF
solenoid. See
“MPF
solenoid removal” on
page 171
.
Step 4
Make sure the MPF gearbox spring is properly installed and free of
damage. Check the MPF gearbox for wear or damage.
Are they free of wear or damage?
Go to step 5.
Replace the MPF
gearbox. See
“MPF
gearbox removal” on
page 174
.
Step 5
Check the input sensor area for jammed media fragments.
Is the paper path free of partially fed or jammed media?
Go to step 6.
Clear the paper path of
any media fragments.
Step 6
Check the jam access cover if it is blocking the input sensor.
Is it blocking the input sensor?
Replace the jam access
cover. See
“Jam access
cover removal” on
page 207
.
Go to step 7.
Step 7
Check the input sensor cable for proper connection to the controller
board.
Is it properly connected?
Go to step 8.
Reseat the cable.
Step 8
Check the input sensor.
Is it free of damage?
Go to step 9.
Replace the input
sensor. See
“Duplex
sensor and input
sensor removal” on
page 219
.
4514
Diagnostic information
48
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 ...
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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 ...
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Page 298: ...4514 Part number index 298 ...
Page 302: ...4514 Part name index 302 ...
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