1 - 92Chapter 1 TroubleshootingFIP-1.P7 Horizontal stripesTrouble substanceThere are horizontal 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)- MAIN MOTOR (PL11.1.2)- GEAR ASSY HOUSING (PL11.1.3)- ROS ASSY (PL8.1.1)- PWBA ESS (PL12.1.13)- LVPS (PL12.1.5)- 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 No1Checking EP CARTRIDGEInstall a new EP CARTRIDGE.Re-print the problem image.Have the horizontal black stripes gone?End of work. Go to step 22Checking ROS ASSYAre the connectors on ROS ASSY surely connected?Is the ROS ASSY surely secured to the frame?Go to step 3.Reconnect theconnectors and/orreinstall the ROSASSY.3Checking Drive Assy and GEAR ASSY HOUSINGReplace Drive Assy and GEAR ASSY HOUSING.(RRP11.3)Re-print the problem image.Does the problem still occur?Go to step 4. End of work4Checking GUIDE ASSU CRU R for continuityRemove EP CARTRIDGE.Check if there are any deformation or stains on the plate ofGUIDE ASSY CRU R.Check the continuity of the plate of GUIDE ASSY CRU R.Are there any deformation or stains on the plate of GUIDEASSY CRU R, and does it continuous?Go to step 5.Replace GUIDEASSY CRU R.(RRP8.13)5Checking connection of GUIDE ASY CRU RCheck the contact of the plate of GUIDE ASSY CRU R withthe terminal on HVPS/MCU.Does the plate of GUIDE ASSY CRU R correctly contactwith the terminal on HVPS/MCU?Go to step 6.Replace GUIDEASSY CRU R.(RRP8.13)
