02/20003-14 DocuPrint N2125IQ RAP 3, IQ RAP 4Initial IssueImage Quality Repair Analysis ProceduresWARNINGIf the printer has been switched on, the Fuser will be hot.Open the Rear Cover. Remove the Fuser Assembly. Rotate the fuser idler gear manuallyand inspect the Heat Roll. Open fuser jam access cover. Rotate the fuser idler gear man-ually and inspect the Pressure Roll. The Heat Roll and the Pressure Roll are free ofscratches and contamination.Y NReplace the Fuser Assembly (REP 6.2).Replace the following, in order, until the defective component is found: BTR Assembly(REP 7.1), Fuser Assembly (REP 6.2), Chute Transport Assembly (REP 6.1), HVPS PWB(REP 9.6), Laser Assembly (REP 7.4), Print Engine Controller PWB (REP 9.3)Problem solved.IQ RAP 4 Horizontal DeletionsA deletion is an area of the print where the image is missing or extremely light. Horizontal dele-tions extend across the page (Figure 1).Figure 1 Horizontal 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.• Check that rollers and other components in the paper path are clean and unobstructed.ProcedureEnter Diagnostics and select Test Print. Scroll to Print Pattern and press Enter [4]. Run five testprints. The test prints have horizontal deletions.Y NExit diagnostics and enter the Menu Mode. Print a Config Sheet. The prints have hori-zontal deletions.Y NThe problem appears to be with the host computer or the cables. If the problems per-sist, replace the System Controller PWB (REP 9.2).Remove and reseat the System Controller PWB. If the problems persist, replace the Sys-tem Controller PWB (REP 9.2).Load fresh, dry paper. Run a test print. The problem is still present.Y NProblem solved.Install a new Print Cartridge. The problem is still present.A B
