Xerox Phaser 6128MFP Service Manual page 168

Error Messages and Codes
3-48
Troubleshooting Procedure Table (continued)
Step Actions and Questions
5 Check the Manual Feed Actuator for
damage or misalignment. Remove
the Lower Chute (PL3.2.27) to
examine the actuator.
Is the actuator damaged or
misaligned?
6 Run the Manual Feed Sensor test
(DI-0) (page 4-39).
Use the actuator to toggle the
sensor output.
Does the sensor operate?
7 Run the Registration Clutch test
(DO-00 and DO-29) (page 4-48).
Does the Registration Clutch and
Registration Rollers operate?
8 Check the Registration Roller
Actuator for damage or
misalignment. Remove the Lower
Chute (PL3.2.27) to examine the
actuator.
Is the actuator damaged or
misaligned?
9 Run the Registration Sensor test (DI-
2) (page 4-35).
Use the Registration Actuator In to
toggle the sensor output.
Does the sensor operate?
10 Check connectors P/J23 and P/J233
between the MCU Board and
Manual Feed Sensor.
Are the connectors secure?
11 Check Left Side Harness continuity.
Disconnect P/J23 from the MCU
Board and P/J233 from the Manual
Feed Sensor.
Is the harness damaged?
12 Check for +3.3 V at J23 on the MCU
Board.
Is +3.3 V available between J23-6
<=> ground?
13 Check Manaul Feed Sensor signal.
Does the voltage between ground
<=>J23-8 on the MCU Board change
when the actuator blocks the
sensor?
Yes No
Repair or Go to step 6.
replace the
manual Feed
Actuator In
(page 8-28).
Go to step 7. Go to step 10
Go to step 8. Go to step 18.
Repair or Go to step 9.
replace the
Registration
Roller Actuator
(PL3.2.8)
Replace the Go to step 14.
MCU Board
(page 8-57).
Go to step 11 Reconnect the
connectors.
Repair or Go to step 12.
replace the
harness
(PL10.4.18).
Go to step 13. Replace the
MCU Board
(page 8-57).
Replace the Replace the
MCU Board Manual Feed
(page 8-57). Sensor
(page 8-27).
Phaser 6128MFP Service Manual