Xerox Phaser 6280 Service Manual page 178

Error Messages and Codes
3-42
Troubleshooting Procedure Table (continued)
Step Actions and Questions
14 Check the Registration Sensor signal.
1. Measure the voltage across ground
<=> J29-10 pin on the MCU Board.
2. Does the voltage change when the
Actuator of the Registration Sensor
is activated?
1. Perform the Main Motor test
15
(page 4-41): Service Mode
Engine Diag > Motor Test
Motor.
2. Does the Motor operate properly?
1. Check the wiring harness
16
connectors P/J22 and P/J222
between the MCU Board and the
Main Drive.
2. Are the connectors securely
connected?
Check the Right Side Harness for
17
continuity.
1. Disconnect P/J22 from the MCU
Board and P/J222 from the Main
Drive Assembly.
2. Check continuity between P/J22 <=>
P/J222.
18 Check the Main Drive Assembly signal.
1. Disconnect P/J22 from the MCU
Board.
2. Is there +24 V across ground <=>
J22-B2/J22-B4 pin when the
Interlock Switch is activated?
1. Perform the Sub Motor test
19
(page 4-42): Service Mode
Engine Diag > Motor Test
Motor.
2. Does the Motor operate properly?
1. Check the wiring harness
20
connectors P/J22 and P/J221
between the MCU Board and the
Main Drive Assembly.
2. Are the connectors securely
connected?
Yes
Replace the
MCU Board
(page 8-86).
Go to step 19.
>
> Main
Go to step 17.
Go to step 18.
Replace the
Main Drive
Assembly
(page 8-70).
Go to step 23.
>
> Sub
Go to step 21.
Phaser 6280 Color Laser Printer Service Manual
No
Replace the
Registration
Sensor
(page 8-43).
Go to step 16.
Reconnect the
connectors.
Replace the
Right Side
Harness.
Replace the
MCU Board
(page 8-86).
Go to step 20.
Reconnect the
connectors.