01/023-138825/8830 Printer PQ 9, PQ 10Print QualityPQ 9 Deletions (bands) PQ 10 Deletions (in solid and halftone areas)Table 1 Deletions (bands) Symptom / CheckSymptom/ checkDeletion bands or very lowimage density perpendicularto the print feed direction.Probable Cause Corrective Action1. Damp media 1A. Refer to BSD 7.1 andBSD 7.3 to check for correctoperation of the Paper heat-ers.1B. Ensure that the Customeris storing the media correctly.2. Incorrect Corotron opera-tion.2A. Check / Clean or replacethe T/DT corotrons asrequired ( PL 9.4).2B. Perform GP 1 HVPSCheckout Procedure.4. Defective drum or no drumdrive.4A. Check for correct opera-tion of the drive system.4B. Replace the drum ( REP9.3).5. Magnetic roll 5A. Ensure that the housingis latched securely.5B. Check the mag roll fordamage or binding.6. Image Module Roller notcontacting drum6. Check/clean/replace asrequired ( PL 9.3).7. Media Transport. 7. Ensure that the MediaTransport gap ( ADJ 8.4) isset correctly.Table 1 Deletions (in solid and halftone areas) Symptom / CheckSymptom/ checkBands of deletion in the solidor halftone areas in the printfeed direction.Probable Cause Corrective Action1. Damp media 1A. Refer to BSD 7.1 andBSD 7.3 to check for correctoperation of the Paper heat-ers.1B. Ensure that the Customeris storing the media correctly.2. Exposure 2A. Clean the Image Bar.Check / clean the Air PressureTubes ( REP 9.18).2B. Enter [9-21-5 and checkfor correct operation. (Referto BSD 6.1, BSD 6.2 andcheck for correct electricalconnections to/from theReceiver PWB and the LEDImage Bar).3. Incorrect Corotron opera-tion3. Perform GP 1, HVPSCheckout Procedure.4. Magnetic roll 4. Check the mag roll fordamage or binding.5. The surface of the heat rollis damaged.5. Determine and fix thecause of the damage to theheat roll. Replace the heatroll ( REP 10.2).6. Media Transport. 6. Ensure that the MediaTransport gap ( ADJ 8.4) isset correctly.
