1 - 91Chapter 1 TroubleshootingFIP-1.P6 Vertical stripesTrouble substanceThere are vertical black stripes along the paper.ESS and possible causative parts- EP CARTRIDGE- HVPS/MCU (PL12.1.19)- GUIDE ASSY CRU R (PL8.1.25)- BTR ASSY (PL8.1.21)- 150 FEEDER ASSY (PL5.1.1)- ROS ASSY (PL8.1.1)- PWBA ESS (PL12.1.13)- 250 FEEDER ASSY (PL6.1.11)- 550 FEEDER ASSY (PL7.1.10)Before 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.Step Check Yes No1Check the paper transfer course.Check if there are any stains or obstacles on the papertransfer course between the paper feeding entrance andthe exit.Are there any obstacles on the paper transfer course?Go to step 2.Remove theobstacles orstains from thepaper transfercourse.2Checking the laser beam courseMake sure there is no obstacle between ROS ASSY andDrum.Are there any obstacles on the laser beam course?Check if any stains on ROS ASSY window.Go to step 3.Remove all theobstacles fromthe laser beamcourse and/orclean ROS ASSYwindow.3Checking EP CARTRIDGEInstall a new EP CARTRIDGE.Carry out a test printing.Have the vertical black stripes gone?End of work Go to step 4.4Checking BTR ASSYRemove BTR ASSY. (RRP8.10)Check if any stains and/or wear on BTR ASSY.Are there any stains and/or wear on BTR?Go to step 5. Replace BTRASSY. (RRP8.10)5 Checking ROS ASSYAre the connectors on ROS ASSY surely connected? Go to step 6. Reconnect theconnectors.6Checking Heat Roll and Pressure RollRemove FUSER ASSY. (RRP8.8)Warning; Start the operation after the FUSER ASSYhave cooled down.Turn the Gear HR with a finger, and check the Heat Rolland Pressure Roll.Are the Heat Roll and Pressure Roll damaged or stained?Go to FIP2.19Electrical Noise.Replace FUSERASSY. (RRP8.8)
