2-86
Finisher Service Manual
4024-110
990.01 Sensor (stapler carriage HP) off failure
4
Check the stapler carriage motor assembly by opening
the finisher front door assembly then pushing the
stapler carriage towards the back. Then closing the
finisher front door assembly, the stapler carriage
should move.
Does the stapler carriage motor assembly rotate
normally?
Go to step 6.
Go to step 5.
5
Is the stapler carriage motor assembly connected
properly?
Replace the
stapler carriage
motor assembly.
Replace the
connection
6
Perform a test print stapled document.
Does the error still occur?
Replace the
printer engine
card assembly.
Refer to the
Printer Service
Manual.
Problem solved.
Step
Check
Yes
No
1
Check the stapler by moving it with your fingers.
Does the Stapler carriage move smoothly?
Go to step 2.
Remove
obstructions.
2
Check the sensor (stapler carriage HP) for correct
operation.
Perform the sensor (stapler carriage HP) test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Punch and Staple.
5. Select Stapler carriage shift HP.
Does the display on the operator panel change every
time the sensing area of the sensor (stapler carriage
HP) is placed to the interrupt flag of the stapler rack
gear by moving the stapler carriage by hand?
Go to step 4.
Go to step 3.
3
Is the sensor (stapler carriage HP) connected
properly?
Replace the
sensor (stapler
carriage HP). Go
to
“Sensor
(stapler carriage
HP) removal” on
page 4-58
.
Replace the
connection.
4
Check the stapler carriage motor assembly by opening
the finisher front door assembly then pushing the
stapler carriage towards the back. Then closing the
finisher front door assembly, the stapler carriage
should move.
Does the stapler carriage motor assembly rotate
normally?
Go to step 6.
Go to step 5.
5
Is the stapler carriage motor assembly connected
properly?
Replace the
stapler carriage
motor assembly.
Replace the
connection.
Step
Check
Yes
No
Summary of Contents for W850dn
Page 8: ...viii Finisher Service Manual 4024 110 ...
Page 12: ...xii Finisher Service Manual 4024 110 ...
Page 22: ...1 6 Finisher Service Manual 4024 110 ...
Page 155: ...Repair information 4 3 4024 110 5 Remove the bridge unit assembly B from the printer B ...
Page 240: ...4 88 Finisher Service Manual 4024 110 25 Remove the main paddle shaft assembly Rear J F K L ...
Page 272: ...4 120 Finisher Service Manual 4024 110 ...
Page 282: ...5 10 Finisher Service Manual 4024 110 ...
Page 284: ...6 2 Finisher Service Manual 4024 110 ...
Page 290: ...7 6 Finisher Service Manual 4024 110 Assembly 4 Covers 3 7 5 9 2 10 6 4 8 1 ...
Page 292: ...7 8 Finisher Service Manual 4024 110 Assembly 5 Covers and front door 3 7 5 2 6 4 1 ...
Page 294: ...7 10 Finisher Service Manual 4024 110 Assembly 6 Stacker bin lift 5 4 6 3 1 2 8 2 3 3 3 1 7 7 ...
Page 298: ...7 14 Finisher Service Manual 4024 110 Assembly 8 Stapler 3 7 5 2 6 4 8 1 ...
Page 300: ...7 16 Finisher Service Manual 4024 110 Assembly 9 Media eject 8 4 9 6 2 7 5 1 3 11 2 3 6 5 10 ...
Page 310: ...7 26 Finisher Service Manual 4024 110 Assembly 14 Electronics 3 5 2 6 4 1 ...
Page 312: ...7 28 Finisher Service Manual 4024 110 Assembly 15 Cables 1 3 7 5 2 6 4 1 ...
Page 316: ...7 32 Finisher Service Manual 4024 110 ...
Page 322: ...I 6 Finisher Service Manual 4024 110 ...