1 - 84Chapter 1 TroubleshootingFIP-1.P2 Blank print (No print)Trouble substanceThe entire paper is printed pure white.ESS and possible causative parts- EP CARTRIDGE- 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)- FUSER ASSY (PL8.1.20)- LVPS (PL12.1.5)- HVPS/MCU (PL12.1.19)- 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 No1Confirm whether HVPS/MCU isassembled under the hook ofFRAME.Go to step 2.Work over theinstallation ofHVPS/MCUagain.(RRP12.10)2Checking the laser beam courseMake sure there is no obstacle between ROS ASSY andDrum.Are there any obstacles on the laser beam course?Go to step 3. Removeobstacles.3Checking ROS ASSYCheck if any obstacles entirely cover the ROS ASSYwindow.Check if the connectors of the ROS ASSY aredisconnected.Go to step 4.Removeobstacles of ROSASSY windowand/or connectthe connectors ofROS ASSY.4Checking EP CARTRIDGEInstall a new EP CARTRIDGE.Re-print the problem image.Is the image density normal?End of work Go to step 5.5Checking 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 6. Replace BTRASSY. (RRP8.10)HOOK