3-84 Phaser 6128MFP Service Manual
Error Messages and Codes
4 Does the media reach the
Registration Rollers when fed from
the Tray?
Go to step 7. Go to step 5.
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?
Repair or
replace the
manual Feed
Actuator In
(page 8-28).
Go to step 6.
6 Run the Manual Feed Sensor test
(DI-0) (page 4-39).
Use the actuator to toggle the
sensor output.
Does the sensor operate?
Go to step 7. Go to step 10
7 Run the Registration Clutch test
(DO-0 and DO-29) (page 4-48).
Does the Registration Clutch and
Registration Rollers operate?
Go to step 8. Go to step 18.
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?
Repair or
replace the
Registration
Roller Actuator
(PL3.2.8)
Go to step 9.
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?
Replace the
MCU Board
(page 8-57).
Go to step 14.
10 Check connectors P/J23 and P/J233
between the MCU Board and
Manual Feed No Paper Sensor.
Are the connectors secure?
Go to step 11 Reconnect the
connectors.
11 Check Left Side Harness continuity.
Disconnect P/J23 from the MCU
Board and P/J233 from the Manual
Feed No Paper Sensor.
Is the harness damaged?
Repair or
replace the
harness
(PL10.4.18).
Go to step 12.
12 Check for +3.3 V at J23 on the MCU
Board.
Is +3.3 V available between J23-6
<=> ground?
Go to step 13. Replace the
MCU Board
(page 8-57).
13 Check Manual Feed Sensor signal.
Does the voltage between ground
<=>J23-8 on the MCU Board change
when the actuator blocks the
sensor?
Replace the
MCU Board
(page 8-57).
Replace the
Manual Feed
Sensor
(page 8-27).
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No
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