Phaser 4500/4510 Service Manual 5-47
Print-Quality Troubleshooting
5 The following printer components
and areas are associated with this
problem. One or more of these
components or areas may have
partially or completely failed.
If misregistration occurs only on
two-sided prints, repair or replace
the duplex unit.
If misregistration occurs in the
process direction when feeding
from all trays. Replace in
sequence as necessary:
■ Registration clutch (page 8-19)
■ Registration rollers (page 8-19)
■ Registration sensor and
Actuator (page 8-20)
■ 150-sheet feeder assembly
(page 8-15)
If misregistration occurs in the
process direction when feeding
from a specific paper tray, replace
in sequence as necessary:
■ Feed, nudger, retard rollers
(page 8-93)
■ Paper cassette (page 8-13)
■ Feed clutch (page 8-19)
■ Turn roller clutch (Trays 3 and 4
only) (page 8-92)
■ Feeder assembly (page 8-86)
■ HVPS/engine Logic PWBA
(page 8-73)
If misregistaition occurs in the
scan direction, replace in
sequence as necessary:
■ Laser assembly (page 8-38)
■ I/P PWBA (page 8-75)
Registration Troubleshooting Procedure (continued)
Step Actions and Questions Yes No