U2-1 Carriage Module Fail; U3-5 Laser Power Or Ros Motor Fail - Xerox WorkCentre 5020 Service Documentation

U2-1 Carriage Module Fail

BSD-Reference: CH6.2 (Figure 2)
Explanation
A carriage fault was detected.
Procedure
Execute diagnostics [05-22 Move scanner to home position] and [05-23 Move scanner to main-
tenance position]. (How to Enter the Diagnostic Mode) The carriage moves.
Y N
Check each IIT Carriage connector. Each connector is connected securely.
Y N
Connect each connector securely.
Check for foreign substances and deformed parts in the carriage. None is found.
Y N
Remove the foreign substances and repair the deformed parts.
Replace the IIT Carriage (PL 10.3)(REP 10.3.1).
Execute diagnostics [05-23 Move scanner to maintenance position]. When the IIT Carriage
has moved to the leftmost position, press the [Stop] button to put the Carriage Sensor into the
blocked state. Execute diagnostics [5-11 Home Sensor], and "H" is displayed.
Y N
Check each IIT Carriage and Carriage Sensor connector. Each
nected securely.
Y N
Connect each connector securely.
Replace the Carriage Sensor (PL 10.6) and the IIT Carriage (PL 10.3) (REP 10.3.1) in
that order.
Check the Carriage Sensor (PL 10.6 ). The Carriage Sensor is installed properly.
Y N
Install the Carriage Sensor (PL 10.6) properly.
Replace the IIT Carriage (PL 10.3) (REP 10.3.1).
Status Indicator RAPS
U2-1, U3-5

U3-5 Laser Power Or ROS Motor Fail

BSD-Reference:
Explanation
The ROS Motor does not turn, or the laser output is not normal.
Procedure
Execute diagnostics [6-15 ROS Motor ON]. (How to Enter the Diagnostic Mode) The ROS
Motor can be heard rotating.
Y N
Measure the voltage between the AIOC PWB P403-7 ( P/J403) (+) and GND (-).
voltage is approximately +24VDC.
Y N
Replace the AIOC PWB (PL 8.1) (REP 8.1.1) and the LVPS (PL 8.1) (REP 8.1.2) in
that order.
Replace the ROS (PL 3.1) (REP 3.1.1) and the AIOC PWB (PL 8.1) (REP 8.1.1) in that
order.
Measure the voltage between the AIOC PWB P403-1 ( P/J403) (+) and GND (-).
age is approximately +5VDC.
Y N
Replace the AIOC PWB (PL 8.1) (REP 8.1.1).
connector is con- Check the AIOC PWB P/J403 ( P/J403), LD PWB P/J140 ( P/J140), and P/J130 ( P/J130) con-
nectors. The P/J403, P/J140, and P/J130 connectors are connected securely.
Y N
Connect the AIOC PWB P/J403 ( P/J403), LD PWB P/J140 ( P/J140), and P/J130 ( P/
J130) connectors securely.
Check the wires between J403 ( P/J403) and J140 ( P/J140) and between J403 and J130 ( P/
J130) The wires are not shorted or open.
Y N
Repair the wire(s).
Replace the ROS (PL 3.1) (REP 3.1.1) and the AIOC PWB (PL 8.1) (REP 8.1.1) in that order.
July, 2007
2-26
CH6.3 (Figure 3)
The
The volt-
Initial Issue
WorkCentre 5020