10/004-29Phaser 790/DocuColor 2006 REP 5.6Repairs and AdjustmentsInitial IssueREP 5.6 Registration RollParts List on PL 17.3RemovalWARNINGTo avoid personal injury or shock, do not perform repair activities with the power switchon or electrical power applied to the machine.1. Switch off the machine power and disconnect the machine Power Cord.2. Remove the ADF Front Cover and Rear Cover3. Remove the Document Transport Assembly. (REP 5.7)4. Remove the ADF Assembly from the scanner. (REP 5.1)5. Remove the Feeder Lower Cover. (Figure 1)Figure 1 Removing the Feeder Lower Cover6. Remove the left Counterbalance. (REP 5.3)7. Remove the ADF Registration Roll Drive Pulley/Gear (Figure 2)Figure 2 Removing the Drive Pulley/Gear1Remove the two retaining screws, thenremove the Feeder Lower CoverFeeder Lower Cover1Loosen screws,and raise theIdler Pulley2Reduce the belt tension,and disengage the Beltfrom the Pulley/Gear3Remove the E-Clip, Pulley/Gear and washer