Phaser 6280 Color Laser Printer Service Manual
3-41
Error Messages and Codes
7
Check the Fuser signal.
1. Disconnect P/J17 from the MCU
Board.
2. Is there +3.3 V across ground <=>
J17-1 pin?
Go to step 8.
Replace the
MCU Board
(page 8-86).
8
Check the Exit Sensor for signal.
1. Measure the voltage across ground
<=> P/J17-3 pin.
2. Does the voltage change when the
Actuator of the Exit Sensor is
activated?
Replace the
MCU Board
(page 8-86).
Replace the
Fuser
(page 8-11).
9
1. Perform the Registration Sensor
Service Mode
>
Engine Diag
>
Sensor Test
>
Regi
Sensor
.
2. Does the number on the Control
Panel increase by 1 when the
Actuator of the Registration Sensor
is activated?
Go to step 15.
Go to step 10.
10
1. Check the wiring harness
connectors P/J29, P/J292, and P/
J2922 between the MCU Board and
the Registration Sensor.
2. Are the connectors securely
connected?
Go to step 11.
Reconnect the
connectors.
11
Check the Registration Sensor
Harness for continuity.
1. Disconnect P/J292 from the Right
Side Harness and P/J2922 from the
Regi Sensor.
2. Check continuity between P/J292
<=> P/J2922.
Go to step 12.
Replace the
Registration
Sensor
Harness.
12
Check the Right Side Harness for
continuity.
1. Disconnect P/J29 from the MCU
Board and P/J292 from the Regi
Sensor Harness.
2. Check continuity between P/J29 <=>
P/J292.
Go to step 13.
Replace the
Right Side
Harness.
13
Check the Registration Sensor for
continuity.
1. Disconnect P/J29 from the MCU
Board.
2. Is there +3.3 V across ground <=>
J29-8 pin?
Go to step 14.
Replace the
MCU Board
(page 8-86).
Troubleshooting Procedure Table (continued)
Step
Actions and Questions
Yes
No
Содержание Phaser 6280
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