Removing the High Voltage Contact Assembly and Feed Guide Assembly . . . . . . . . . . . . . . . . 6-67 Replacing the High Voltage Contact Assembly/Feed Guide Assembly . . . . . . . . . . 6-68 Interconnect PCA Removal . . . . . . . . . . . . . . . 6-69 7 Troubleshooting LaserJet 5 Error Map . . . . . . . . . . . . . . . . . . . . 7-A Pre-Troubleshooting Procedures . . . . . . . . . . . . . 7-1 Preliminary Operating Checks . . . . . . . . . . . . . 7-1 Printer Message Troubleshooting . . . . . . . . . . . 7-2 Printer Message Summary Table . . . . . . . . . . . 7-2 Clearable Warnings . . . . . . . . . . . . . . . . . 7-10 Printer Message Troubleshooting Procedures . . . . . .
7-12 Blank Display . . . . . . . . . . . . . . . . . . . . . 7-12 MP/PC/LC (Tray 1/2/3) LOAD Message . . . . . . 7-13 Cassette Size Switches (SW603, SW604, SW605) Functional Check . . . . . . . . . . . . . . . . . . 7-15 Paper Size Sensing Lower Cassette . . . . . . . . . 7-16 PC Empty Sensor (PS2) Functional Check . . . . . . 7-17 PS4 Check (MP Tray Empty Sensor) . . . . . . . . . 7-17 12 Printer Open Message . . . . . . . . . . . . . . . 7-18 SW601 Functional Check . . . . . . . . . . . . . . . 7-19 13 PAPER JAM Message . . . . . . . . . . . . . . . 7-20 PS1 (Input/Registration Sensor) Check . . . . . . . . 7-22 PS3 (Exit Sensor) Check . . . . . . . . . . . . . . . .
7-23 Pickup Motor Functional Test (M2) . . . . . . . . . . 7-23 Lower Cassette Functional Check . . . . . . . . . . 7-24 14 NO EP CART Message . . . . . . . . . . . . . . . 7-25 16 Toner Low Message . . . . . . . . . . . . . . . . 7-25 41.X ERROR Message . . . . . . . . . . . . . . . . 7-27 50 SERVICE Error - Fuser Malfunction . . . . . . . 7-29 51 ERROR Message . . . . . . . . . . . . . . . . . . 7-31 52 ERROR Scanner Malfunction . . . . . . . . . . . 7-32 Laser/Scanner Assembly Functional Checks . . . . . 7-32 57 (or 57.1) SERVICE Message (Main Motor Failure) . . . . . . . . . . . . . . . . . . . . . . . 7-33 Main Motor Functional Checks . . . . . . . . . . . .
7-33 58 (or 57.2) SERVICE (Fan Failure) . . . . . . . . . 7-34 Image Defect Summary . . . . . . . . . . . . . . . . . 7-35 PS5 Check (MP Tray Paper End Sensor) Functional Test . . . . . . . . . . . . . . . . . . . 7-44 Image Formation Troubleshooting . . . . . . . . . . . . 7-49 Half Self-Test Functional Check . . . . . . . . . . . 7-49 Contents-6