HP 4 plus C2037A, C2021A, 5n C3952A, 5 C3916A, 5m C3917A, 4 C2001A manual Troubleshooting

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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