HP manual 9

6Removal and Replacement

Required Tools . . .	. . . . . . . . . . . . . . . . . .	.	.	. 6-2
Hardware Review .	. . . . . . . . . . . . . . . . . .	.	.	. 6-2

Removing the Covers . . . .	. . . . . . . . . . . . . . . . 6-4
Right Side Cover Removal	. . . . . . . . . . . . . . . . 6-4
Top Cover Removal . . .	. . . . . . . . . . . . . . . . 6-5

Left Side Cover Removal . . . . . . . . . . . . . . . . . 6-7 Rear Door Removal . . . . . . . . . . . . . . . . . . . . 6-8

Font Door Cover Removal (LJ 5 Right Front
Cover Removal) . . . . . . . . . . . . . . . . . . .	6-10
Multi-Purpose (MP) Tray (Tray 1) Door Removal . . .	6-12
Multi-Purpose (MP) Tray (Tray 1) Removal . . . . . .	6-13

Assemblies Removal . . . . . . . . . . . . . . . . . . . . 6-15 Power Supply Removal . . . . . . . . . . . . . . . . . 6-15

Paper Feed Assembly Removal . . . . . . . . . . . . .		6-18
High Voltage Power Supply (HVPS) Removal . . . . .		6-21
Fuser Assembly Removal . . . . . . . . . . . . . . . . 6-22
Control Panel and Overlay Removal . . . . . . . . . .		6-23
Removing the SIMMs Door . . . . . . . . . . . . . .		6-25
Formatter Cage Removal . . . . . . . . . . . . . . . . 6-27
Formatter PCA Removal . . . . . . . . . . . . . . . . 6-29
DC Controller Removal . . . . . . . . . . . . . . . . . 6-33
DC Controller Installation . . . . . . . . . . . . . . .		6-35
Main Motor Assembly Removal . . . . . . . . . . . .		6-37
Gear Assembly Removal . . . . . . . . . . . . . . . .		6-38
Fan Removal . . . . . . . . . . . . . . . . . . . . . .		6-39
Output Assembly Removal . . . . . . . . . . . . . . . 6-41
Paper Exit Sensor (PS3) Removal . . . . . . . . . . .		6-42
Scanner Assembly Removal . . . . . . . . . . . . . .		6-43
Lower Cassette Assemblies . . . . . . . . . . . . . . . .		6-44
Lower Cassette Sensor PCA Removal . . . . . . . . .		6-44
Lower Cassette Pickup Motor Removal . . . . . . . .		6-45
Replacing Fuser Assembly Parts	. . . . . . . . . .	6-47
Fuser Assembly Configuration . . . . . . . . . . . .		6-48
Removing the Fuser Roller Heat Lamp . . . . . . . .		6-49
Fuser Assembly Thermoswitch Removal . . . . . . .		6-55
Thermistor Removal . . . . . . . . . . . . . . . . . .		6-56
Paper Control PCA Removal . . . . . . . . . . . . . .		6-59
Sensor PCA Removal . . . . . . . . . . . . . . . . . . 6-60
PS1 and PS2 Sensor Assembly Removal . . . . . . .		6-61
High Voltage Contact Plate (HVCP) and Paper Guide
Removal . . . . . . . . . . . . . . . . . . . . . . . .		6-62
Accessing the High Voltage Contact Plate and
Feed Guide Assembly . . . . . . . . . . . . . . . .		6-62

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