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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
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