Xerox Phaser 6125 Service Manual page 179

Phaser 6125/6130 Color Laser Printer Service Manual
Troubleshooting Procedure Table (continued)
Step Actions and Questions
Check the K Mode Solenoid for
6
resistance
Disconnect P/J24 from the MCU
Board.
Is the resistance across J24-1 and
J24-2 about 80 to 110-ohm?
7 Check that the Feed Drive Assembly is
properly installed. If not, install
correctly.
Does the error still occur when the
printer is powered on?
Check the connections between the
8
MCU Board and K Mode Sensor.
Are P/J26 and P/J261 connected
securely?
9 Does the error still occur when the
power is turned OFF and ON?
1. Disconnect J26 from the MCU
10
Board.
2. Measure the voltage across P26-1
<=> ground on the MCU Board.
Is the voltage about +3.3 VDC?
1. Remove the Feed Drive Assembly
11
from the printer (page 8-22), but let
P/J261 and P/J24 remain
connected.
2. Perform the K Mode Sensor test
(page 4-23): Service Mode
Sensor Test > K Mode
During this check, close the Front
Cover.
Does the voltage change, when a piece
of paper is inserted into the gap of the
K Mode Sensor?
Error Messages and Codes
Yes
Replace the
MCU Board
(page 8-59).
Go to step 8
Go to step 10.
Go to step 10.
Go to step 11.
Replace the
MCU Board
(page 8-59).
>
Sensor.
No
Replace the
Feed Drive
Assembly
(page 8-22).
Complete
Reconnect the
connector(s) P/
J26 and/or P/
J261 correctly,
then go to step
9.
Complete
Replace the
MCU Board
(page 8-59).
Replace the
Feed Drive
Assembly
(page 8-22).
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