1 – 122Chapter 1 TroubleshootingFIP- 1.P6 Vertical stripesBefore 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 vertical black stripes along the paper.ESS and possible causes- 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)- 550 FEEDER ASSY (PL7.1.10)Step Check Yes No1Check the paper transfer course.Check if there are any stains or obstacles on the papertransfer course between the paper feeding entranceand the exit.Are there any obstacles on the paper transfer course?Go to step 2.Remove the obsta-cles or stains fromthe paper transfercourse.2Checking the laser beam courseMake sure there is no obstacle between ROS ASSYand Drum.Are there any obstacles on the laser beam course?Check if any stains on ROS ASSY window.Go to step 3.Remove all theobstacles from thelaser beam courseand/or clean ROSASSY window.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 ASSY Remove 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 the con-nectors.6Checking Heat Roll and Pressure Roll Remove FUSERASSY. (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 orstained?Go to FIP1.42Electrical Noise.Replace FUSERASSY. (RRP8.8)
