HP LaserJet 4L - Removal and Replacement

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Removal and Replacement Strategy – 6-2
Required Tools – 6-3
User Installable Assemblies – 6-4
Memory Upgrade (LaserJet 4L) – 6-4
Memory/Language SIMMS(LaserJet 4P/4MP) – 6-5
Cover and Doors – 6-6
Power, I/O and Memory Doors (LaserJet 41J4ML) -6-6
Printer Cover (LaserJet 4L/4ML) -6-7
Printer Cover (LaserJet 4P/4MP) -6-9
Rear Door – 6-12
Control Panel (LaserJet 4P/4MP) ~ 6-13
Left Side Assemblies – 6-15
Formatter Shield and PCA – 6-15
Gear Train Assembly – 6-17
Main Motor – 6-19
Front Assemblies – 6-20
Front Oblique Roller Assembly – 6-20
Paper Cassette Assembly – 6-21
Tray Forms Size Guide (LaserJet 4L/4ML) -6-21
Compression Springs – 6-22
Internal Assemblies – 6-23
Laser/Scanner Assembly – 6-23
Fan – 6-24
Power Switch Assembly (LaserJet 4P/4MP only) -6-25
Paper Guide/Top Oblique Roller Assembly – 6-26
Transfer Roller and Guide – 6-27
Transfer Roller Bushings – 6-28
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Beam-to-Drum Mirror Assembly – 6-29
(continued on back)
Chapter 6
Contents Page 1