HP 400 manual Table of contents

Table of contents

1 Removal and replacement	1
Removal and replacement strategy	2
Introduction	2
Removal and replacement strategy	2
Electrostatic discharge	3
Required tools	3
Types of screws	4
Service approach	5
Before performing service	5
After performing service	5
Post-service tests	6
Test 1 (print-quality test)	6
Test 2 (copy-quality test)	6
Test 3 (fax-quality test; fax models only)	6
Parts removal order	7
Removal and replacement procedures	9
Rollers and pads	9
Transfer roller	9
Pickup roller (Tray 2 and Tray 3)	10
Separation roller (Trays 2 or 3)	13
Reinstall the separation roller	15
Document feeder pickup roller assembly	16
Pickup roller and separation pad (Tray 1)	17
Main assemblies	20
Print-cartridge drawer	20
DIMM cover	22
Right cover	23
Document feeder input tray	25
Scanner assembly	26
Right-front cover and power button	28
Rear-upper cover (duplex product)	30
Paper-feed guide assembly	31
ENWW	v