HP LaserJet 4345mfp / 4345x mfp / 4345xs mfp / 4345xm mfp Service Manual
Comprehensive service and repair documentation for all HP LaserJet 4345 models, covering installation, maintenance, and troubleshooting. Includes detailed part diagrams. PN Q3942-90950
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Models Covered & Key Technical Specifications
HP LaserJet 4345mfp Series (Q3942-90950) - Service Manual This manual provides full service and repair documentation for all HP LaserJet 4345 models. | HP LaserJet Library Packet
- Documented Specifications: Print speed of 45 ppm establishes the maximum throughput for Letter-size paper.
- Calibrated Settings: For optimal operation, 600 dpi resolution is configured for enhanced detail.
- Authorized Maintenance Procedures: After 215,000 pages, a maintenance kit replacement is documented.
- Core Component Functionality: The fuser assembly uses heat and pressure to bond toner to media.
- Rated Power Consumption: Ready mode consumes 44 W of power.
- Principal System Operations: The formatter processes print jobs and controls device functions.
Professional Workshop Service Manual & Technical Specifications
HP LaserJet 4345 Series Service Manual: HP Printer Repair Manual
| Model-Designation: HP LaserJet 4345mfp Series // Service-Level: Comprehensive Technical Documentation / Operation Logic // Unit-Designations: Printer, Copier, Scanner | Assessment-Parameter | Value | Logic |
|---|---|---|---|
| Product Dimensions (W x D x H) | 761 x 566 x 545 mm | Standard operational configuration | |
| Power Requirements | 100-127 VAC, 50/60 Hz | Standard North American operation | |
| Print Speed | 45 ppm (Letter) | High-speed document processing | |
| Duty Cycle | Up to 200,000 pages/month | Sustained high-volume usage | |
| Memory | 256 MB RAM | Standard data processing capacity |
Maintenance hierarchies are structured into the following key areas:
- Section 1: Product Information - Details configurations, features, and site requirements.
- Section 2: Service Approach - Outlines repair methodology and ordering processes.
- Section 3: Installation and Configuration - Guides initial setup and network connectivity.
- Section 4: Maintenance - Covers cleaning, calibration, and part replacement.
- Section 5: Theory of Operation - Explains internal systems and component functions.
- Section 6: Removal and Replacement - Provides step-by-step procedures for part servicing.
OEM guidelines are included for maintaining optimal performance and print quality. The manual details internal component functions, including the engine control system and image formation process. Torque specifications are documented for critical component reassembly to ensure proper rotational loosening prevention. Parts identification is covered for all user-replaceable components, aiding in efficient servicing.
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