Rep 1.10 Ess Fan; Rep 1.11 Controller Chassis - Xerox Phaser 790 Service Manual

REP 1.10 ESS Fan

Parts List on PL 12.1
Removal
To avoid personal injury or shock, do not perform repair activities with the power switch
on or electrical power applied to the machine.
1. Switch off the machine power and disconnect the machine Power Cord.
2. Remove the Top Cover Assembly (REP 14.4).
3. Remove the Right Cover (REP 14.9).
4. Remove the ESS Fan (Figure 1).
Replacement
Ensure that the wire harness is not pinched when installing the harness.
1. Reinstall the ESS Fan in the reverse order of removal.
1
Disconnect the
connector
Figure 1 Removing the ESS Fan
Initial Issue
Phaser 790/DocuColor 2006
WARNING
CAUTION
2
Remove the screws
3
Remove the
ESS Fan

REP 1.11 Controller Chassis

Parts List on PL 12.1
Removal
To avoid personal injury or shock, do not perform repair activities with the power switch
on or electrical power applied to the machine.
1. Switch off the machine power and disconnect the machine Power Cord.
2. Remove the Top Cover Assembly (REP 14.4).
3. Remove the Right Cover (REP 14.9).
4. Remove the ESS PWB (REP 1.9).
5. Remove the Controller Chassis (Figure 1).
Replacement
1. Reinstall the Controller Chassis in the reverse order of removal.
3
Remove the five
upper screws
2
Loosen the
four lower
screws
Figure 1 Removing the Controller Chassis
10/00
4-11
WARNING
4
Lift to disengage,
then remove the
Controller Chassis
1
Open the Bypass Tray /
Registration Assembly
Repairs and Adjustments
REP 1.10, REP 1.11