Troubleshooting
7-14
7.3.10 Printed Vertical Lines Become Curved
Description: When printing the vertical lines are not straight.
Possible Cause
Sequence of Repair Actions
1.
The +24 V supply to the laser unit is faulty.
a.
Use the DCU test 05 to test the laser motor.
b.
If the voltage is stable, replace the laser
unit.
c.
If the voltage is not 24 volts, replace the
SMPS.
d.
Replace the main board.
Summary of Contents for 3150 - Phaser B/W Laser Printer
Page 1: ...laser printer Phaser 3150 Service Manual ...
Page 2: ......
Page 14: ...Precautions 1 6 ...
Page 22: ...Specifications 3 4 ...
Page 38: ...Summary of Product 4 16 ...
Page 76: ...Alignment and Adjustments 6 12 ...
Page 94: ...Troubleshooting 7 18 ...
Page 112: ...Parts List 8 18 ...
Page 114: ...Block Diagram 9 2 ...
Page 116: ...Connection Diagram 10 2 ...