Xerox Phaser 6250 Service Manual page 200

Troubleshooting Procedure
Step Check
5 Check the following pins between
the Engine Control Board and the
Housing Assembly Bias for
continuity, depending on the color
affected.
J 601<=>DEVE Y contact
J 602<=>DEVE M contact
J 603<=>DEVE C contact
J 604<=>DEVE K contact
6 Replace the Laser Unit,
page 8-68.
Does the image quality improve if the
Laser Unit is replaced?
5-12
Yes
Go to Step 6.
Complete
Phaser 6250 Color Laser Printer Service Manual
No
Replace the Housing
Assembly Bias
page 8-69.
Replace the Engine
Control Board,
page 8-107.