10/003-19Phaser 790/DocuColor 2006 IQ16Image QualityInitial IssueIQ16 Repeating Bands, Streaks, Spots, and Smears RAPProcedureMeasure the distance between the repeating defects. Locate the distance on the table below.Perform the indicated repair actionsTable 1 Repeating DefectsRepetitionspacing Component(s) Repair Actions<4 mm. High Frequency Band-ingCheck/adjust the Developer Roll Spacing (ADJ 9.1).Check for damage or contamination to gears on shaftsof Rotary Motor, Developer Clutch and DispenseClutch (PL 10.1).28 mm. Developer Magnet Roll Check Developer roll bias for floating or shorting out.Replace Developer Housing(PL 6.2) if required.44 mm. BCR Roll Replace the Copy/Print Cartridge (PL 5.1).59 mm. BTR 1 Roll Check for intermittent bias contact to Copy/Print Car-tridge.Replace the Copy/Print Cartridge (PL 5.1)88 mm. BTR 2 Backup RollBTR 2 RollCheck the BTR 2 Assembly for damage or contamina-tion. Clean, repair or replace as required (PL 7.1).Replace the IBT Assembly (PL 7.1).90 mm. Feed Roll TBD134 mm. Fuser Heat RollFuser Pressure RollRemove the Fuser Assembly. Check the rolls for dam-age (nicks, wear, or cuts) or contamination. Clean orreplace as required (PL 8.1).Check the Fuser Nip (ADJ 10.1).Go to the 010-701 RAP.264 mm. Photoreceptor Drum Check the surface of the drum for contamination ordamage. Clean or replace the Copy/Print Cartridge asrequired. (PL 5.1)
