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HP
LaserJet Pro 400 CZ195ABGJ manual
6
1
6
118
118
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118 pages, 27.05 Mb
iv
Conventions used in this guide
ENWW
Contents
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Page
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Conventions used in this guide
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Table of contents
2 Parts and diagrams
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Page
List of tables
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List of figures
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Page
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1 Removal and replacement
Removal and replacement strategy
Electrostatic discharge
Required tools
Types of screws
Service approach
Before performing service
After performing service
Post-servicetest
Print-qualitytest
order removal Parts
Removal and replacement procedures
Rollers
Multipurpose (MP) tray pickup roller
Multipurpose (MP) tray separation pad
Reinstallation tip
Page
Tray 2 and optional Tray 3 pickup roller
Tray 2 and optional Tray 3 separation pad
Covers and control panel
Left cover
Right cover
Top cover with LCD control-panelmodule
LCD control panel
Page
Top cover with touchscreen control-panelmodule
Page
Touchscreen control panel
Page
Rear cover, rear door, and feed assembly
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Page
Cartridge door and front cover assembly
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Page
Main assemblies
Laser scanner assembly
Registration roller assembly
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Fuser assembly and paper feed guide
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Page
Face down drive or duplex drive assembly
Page
Solenoids
Tray 1 solenoid
Duplex solenoid
Page
Motors and fans
Main motor
Page
Fan
Page
Printed circuit-boardassemblies (PCAs)
Engine controller assembly (DC controller) PCA
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Universal serial bus (USB) PCA
Page
Formatter PCA
Wireless PCA
Power switch PCA
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Connecting PCA
Miscellaneous parts
Transfer roller
Multipurpose (MP) tray pickup gear assembly
Optional paper feeder (Tray 3)
Optional paper feeder right cover
Optional paper feeder driver PCA
Optional paper feeder paper sensor PCA
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2 Parts and diagrams
Order parts by authorized service providers
Order replacement parts
Related documentation and software
Supplies part numbers
Whole-unitreplacement part numbers
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How to use the parts lists and diagrams
Assembly locations
HP LaserJet M401a, M401n, M401d models
HP LaserJet M401dn and M401dw models
Optional paper feeder
Covers, panels, and doors
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Internal assemblies
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Input devices
500-sheetpaper feeder
Paper feeder covers
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Paper feeder main body (1 of 2)
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Paper feeder main body (2 of 2)
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Alphabetical parts list
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Numerical parts list
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Index