Diagnostic information
2-21
4024-110
3
Check the sensor (bridge unit media exit) for correct
operation.
Perform the sensor (bridge unit media exit) test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Media Path1.
5. Select Bridge media exit.
Open the bridge unit top cover assembly.
Does the display on the operator panel change every
time the actuator of the sensor (bridge unit media exit)
is operated?
Go to step 6.
Go to step 4.
4
Check the sensor (bridge unit media exit) connection.
Is the above senor connected properly?
Replace the
sensor (bridge
unit media exit).
Go to
“Sensor
(bridge unit
media exit)
removal” on
page 4-17
.
After
reconnecting, go
to step 5.
5
Check the sensor (finisher media entrance) for correct
operation.
Perform the sensor (finisher media entrance) test.
1. Enter Diagnostics mode
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Media Path1.
5. Select Fin media ent.
Detach the finisher from the printer.
Insert a sheet of white media into the finisher media
path entrance.
Does the display change, every time a piece of white
media is placed over the sensor (finisher media
entrance)?
Go to step 7.
Go to step 6.
9
Check the sensor (finisher media entrance)
connection.
Is the above sensor connected properly?
Replace the
sensor (finisher
media entrance).
Go to
“Sensor
(bridge unit
media entrance)
removal” on
page 4-16
.
Replace the
connection.
7
Check the bridge unit drive motor by opening the
finisher front door assembly and then closing it.
Open the bridge unit top cover assembly.
Does the bridge unit drive motor rotate normally?
Go to step 9.
Go to step 8.
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 ...