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DeskJet 400 Printers Series Service Manual

This guide is designed as a reference for people who provide post-sale technical support to end-users of
the HP DeskJet 400 printer. It represents a collection of information gathered from Hewlett-Packard’s
dealer and end-user support organizations. The purpose of this guide is to provide answers to frequently
asked questions and solutions to common problems.

Contents:

Chapter 1 Product Information
Model Numbers and Product Positioning
Support Tools
Features and Benefits
Views
Printer Options
Power Adapter Part Numbers
Supplies and Accessories
User Documentation
Internal Fonts
Specifications
Performance Specifications
Reliability Specifications
Graphics Resolution
Interface Specifications
Physical Specifications
Packaging Dimensions Specifications
Electrical Specifications
Environmental Specifications
Product Safety Specifications
Paper Handling Specifications
Printable Area
Hewlett-Packard Print Cartridge Specifications

Chapter 2 Installation and Configuration
Items Included
Connecting Power to the Printer
Connecting the Printer to a Power Adapter
Centronics Parallel Pinout Information
Connecting the Interface Cable and Establishing Communication
Installing Windows Printer Drivers
Configuring the Printer
Configuration Options with the DJPMenu Configuration Utility
Running the DJPMenu Configuration Utility
Changing Default Graphics Resolutions
Changing the Input Buffer Size
Localizing Factory Defaults

Chapter 3 Operation and Usage
Printer Buttons and Lights
Loading Media
Normal Printing from the Paper Tray
Manual Single Load
Installing/Replacing a Print Cartridge
Maintenance
Maintaining Print Cartridges
Print Cartridge Safety
Cleaning the Print Cartridge
Material Safety Data Sheet
Print Cartridge Tips
Maintaining the Printer
Thermal Inkjet II Technology

Chapter 4 Printer Drivers
Windows Printer Drivers
Microsoft’s Printer Drivers for Windows
Hewlett-Packard’s Printer Drivers for Windows
Printer Driver Features and Capabilities
HP DeskJet 400 Printer Driver for Windows
Minimum Configuration for Hewlett-Packard’s Printer Drivers
Common Windows Printer Driver Problems
Composite Black Ink
Increasing the Printing Speed
Selecting a Printer Driver

Chapter 5 Problem Resolution
Troubleshooting Tools
Overall Troubleshooting
Solving Power Adapter Problems
Troubleshooting the Printer
Self-Tests
Power On Self-Test
Printer Demo Page
Printing Problems
Printer Light Indications
Solving Carriage Stall Conditions
Troubleshooting Paper Feed Operations
Clearing Paper Jams
Avoiding Print Skew
Printer Skew Specification
Measuring Paper Squareness
Measuring Print Skew
Troubleshooting Communication Problems
Troubleshooting Print Cartridges
Short Print Cartridge Life
Identifying the Print Cartridge Expiration Date
Using the Print Cartridge Cleaning Routine
Removing Crusted Ink from the Print Cartridge Nozzles
Cleaning the Electrical Contacts
Clearing Clogged Print Cartridge Nozzles
Troubleshooting Print Quality
Solving Black Print Quality Problems
Solving Color Print Quality Problems
Printouts Missing Rows of Dots
Inconsistent Color Fill Patterns

Chapter 6 Service and Support Information
Warranty Information
U.S. Service Support Contracts
HP Express Exchange Service
HP SupportPack
HP Customer Return Repair Service
Non-U.S. Service Support Contracts
HP SupportPack
Returning a Printer for Service
In the U.S
In the UK, France, Germany, Switzerland, Austria, Belgium, Norway, Sweden,
Denmark, Finland, and the Netherlands
Elsewhere in the World
Service and Support Resources
Obtaining Printer Drivers
Obtaining Support Information
Additional Resource Information
Printer Repair Feedback Information
HP DeskJet 400 Printer Repair Sheet

Appendix A HP PCL Printer Commands and Control Codes
HP PCL Printer Command Summary
Control Codes

Index

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