HP Color Laser 150 / 178 / 179 Service Manual – Troubleshooting & Maintenance Guide (2019)
Original price was: $75.00.$21.95Current price is: $21.95.
Official HP Color Laser 150, 178, and 179 Service Manual (Edition 1 – April 2019).
This detailed guide covers full troubleshooting, theory of operation, wiring diagrams, control-panel codes, image defect correction, connectivity issues, and firmware upgrade procedures. Perfect for field technicians and printer repair professionals.
Description
HP Color Laser 150 / 178 / 179 Service Manual – Troubleshooting & Maintenance Guide (2019) – PDF DOWNLOAD
Description
Overview
The HP Color Laser 150 and MFP 178 / 179 Service Manual is the official technical reference for maintenance, repair, and fault diagnosis of these compact color laser models. It explains every subsystem—formatter, DC controller, fuser, scanner, and power supply—with in-depth circuit logic and component diagrams.
Models Covered
HP Color Laser 150a / 150nw
HP Color Laser MFP 178nw / 178nwg
HP Color Laser MFP 179fnw / 179fwg
📑 Table of Contents
1. Theory of Operation
Basic & Sequence of Operation
Formatter-Control System (PJL, PML, CPU, USB)
Engine Control System (DC Controller, Motors, Sensors, Power Supply)
Fuser Control and Protection
Engine Laser Scanner System
Pickup, Feed & Delivery System
Scanning and Image Capture System (MFP 178 / 179)
2. Solve Problems
Problem-Solving Checklist & Flowchart
Power-On Checks and Subsystem Diagnostics
Connector Location Diagrams & External Ports
Control-Panel LED Patterns and Error Messages
Print Quality Troubleshooting (Gray Print, Streaks, Dropouts, Curl, Misregistration)
Copy / Scan Image Quality Improvement
Paper-Handling and Jam Removal Procedures
Connectivity (USB / Wireless Network Issues)
Service Mode Functions and Tech Mode Menus
Error Code and Troubleshooting Guide (C1-, S6-, U3- Series Errors)
Firmware Upgrade Procedures
🔧 Key Features
Comprehensive Troubleshooting Charts – step-by-step diagnosis for every subsystem.
Detailed Wiring and Connector Diagrams – PCA locations and voltage checks.
Control-Panel Light Pattern Interpretation for 150 and MFP series.
Print Quality Defect Reference Guide with measurements for repetitive defects.
Firmware Upgrade and Service Mode Access instructions.
Environmental and Paper Handling Specifications for optimal performance.
📂 File Details
| Field | Information |
|---|---|
| Manual Name | HP Color Laser 150 / 178 / 179 Service Manual – Troubleshooting |
| Models Covered | 150a / 150nw / 178nw / 178nwg / 179fnw / 179fwg |
| Edition / Year | Edition 1 – April 2019 |
| Format | PDF Digital Download |
| Quality | High-Resolution Scanned PDF (Searchable) |
| Total Pages | ≈ 144 Pages |
💡 Why Buy This Manual
Save hundreds on service-center fees with official HP procedures.
Diagnose power, fuser, or image defects accurately.
Ideal for technicians, IT support teams, and printer maintenance centers.
Fully printable and compatible with mobile devices.
