1 – 125Chapter 1 TroubleshootingFIP- 1.P8 Partial DeletionBefore commencing troubleshooting, check the paper transfer course. Make sure there is no foreignarticles on the transfer course, such as staples, paper clips, scraps of paper and so on.Print defectThere are some extremely faint or completely missingparts. Those missingparts are dotted in a limited area on the paper.ESS and possible causes- EP CARTRIDGE- HVPS/MCU (PL12.1.19)- BTR ASSY (PL8.1.21)- 150 FEEDER ASSY (PL5.1.1)- PWBA ESS (PL12.1.13)- 550 FEEDER ASSY (PL7.1.10)Step Check Yes No1Checking the paper condition Have new, dry and rec-ommended paper on. Re-print the problem image.Does the problem still occur?Go to step 2. End of work2Checking EP CARTRIDGE Install a new EP CAR-TRIDGE. Re-print the problem image. Does the prob-lem still occur?Go to step 3. End of work3Checking the image development process Operate TestPrint, and turn off the power of the printer while printing.Remove the EP CARTRIDGE with care, and check thetoner image formed on the drum, right before the tran-scribe part (BTR). Is the image on the drum completelyformed? Is the area clear and black, and easily read?Go to step 4. Go to FIP1.41HVPS/MCU.4Checking the image transcribe process Check the tonerimage formed on the drum, right after the transcribepart (BTR). Is the toner image on the drum completelytranscribed on the paper?Go to step 5. Replace BTRASSY. (RRP8.10)5Checking Heat Roll and Pressure Roll Remove FUSERASSY. (RRP8.8) Warning; Start the operation after theFUSER ASSY have cooled down. Turn the Gear HRwith a finger, and check the Heat Roll and PressureRoll. Are the Heat Roll and Pressure Roll damaged orstained?Go to step [ESSand possiblecauses].Replace FUSERASSY. (RRP8.8)
