02/20003-14 DocuPrint N2025/N2825IQ RAP 4, IQ RAP 5Initial IssueImage Quality Repair Analysis ProceduresInspect the BTR Assembly for contamination and wear. The BTR is free of contaminationand wear.Y NReplace the BTR Assembly (REP 7.7).Generate a test print and switch OFF the printer power halfway through the print cycle. Care-fully remove the Print Cartridge and inspect the toner image on the drum just before the trans-fer area (BTR). The image on the drum is completely developed, with sharp, black, easilyread areas and no horizontal deletions.Y NGo to RAP 43.Inspect the toner image on the drum immediately after the transfer area (BTR). The tonerimage on the drum was transferred to the paper.Y NGo to RAP 43.WARNINGIf the printer has been switched on, the Fuser will be hot.Warning: the Fuser may be hot. Open the Exit Assembly and remove the Fuser Assembly. Turnthe Fuser Assembly upside down. Rotate the fuser idler gear manually and inspect the HeatRoll. Turn the Fuser Assembly right side up. Open the fuser jam access cover. Rotate the fuseridler gear manually and inspect the Pressure Roll. The Heat Roll and the Pressure Roll arefree of scratches and contamination.Y NReplace the Fuser Assembly (REP 5.1).Replace in order until the problem is solved: HVPS PWB (REP 8.2), Right Print CartridgeGuide (REP 7.2), BTR Assembly (REP 7.7), Paper Transport Assembly (REP 4.1), LaserAssembly (REP 7.1), Print Engine Controller PWB (REP 8.5), Fuser Assembly (REP 5.1), MBFAssembly (REP 2.1), Registration Clutch (REP 4.3), Rear Chute Assembly (REP 3.2), TurnRoll Assembly (REP 2.4).IQ RAP 5 Vertical (Process) DeletionsA deletion is an area of the print where the image is missing or extremely light. Vertical banddeletions are deletions which extend across the short dimension of the page (Figure 1).Figure 1 Vertical DeletionsInitial Actions• Check that the paper supply is dry and fresh.• Inspect the printer paper path for items such as staples, paper clips and paper scraps.• Check installation of the Print Cartridge.• Check that the Print Cartridge ground contact points are clean.• Ensure there are no obstructions in the Laser path.• Check that rollers and other components in the paper path are clean and unobstructed.ProcedureLoad fresh, dry paper. Run a test print. The problem is still present.Y NProblem solved.Install a new Print Cartridge. Run a test print. The problem is still present.Y NProblem solved.Inspect the laser beam path between the Laser Assembly and the Drum. The laser beampath is free of obstructions.Y NRemove any obstructions from the laser beam path.Inspect the paper path, between feed and exit, for contamination or obstructions. The paperpath is free of obstructions.Y NRemove obstructions or contamination from the paper path.AA
