HP LaserJet 4L 4 4ML 4P 4MP Service Manual

This product manual is designed to provide step-by-step instructions and information for the following printer models:

• LaserJet 4L
• LaserJet 4ML
• LaserJet 4P
• LaserJet 4MP

Included in this manual is a detailed matrix of printer features, along with general information applicable to all four models. You'll find specifications, major assembly locations, safety and regulatory information, as well as a discussion of the service and repair philosophy. The topics covered in this manual are:

• Step-by-step procedures for replacing all printer Field Replaceable Units (FRUs)
• Service Checkpoints
• Service Modes
• Printer Driver Installation
• Product Information
• Operating Requirements/ Procedures
• Installation and Configuration
• Maintenance
• Function Overview
• Removal and Replacements of FRUs
• Troubleshooting