HP LaserJet I/II/III/IIP/IIIP/2000 Service Manual (125 P.)
Troubleshooting diagnostics, paper path workflows, and fuser assembly repair for 300 dpi Canon SX engine LaserJets including error resolution sequences.
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Models Covered & Key Technical Specifications
Hewlett-Packard LaserJet I, ID, II, IID, III, IIID, IIP, IIIP, 2000 Series (2686A, 2686D, 33440, 33447, 33449, 33459, 33471, 33481, 2684) — 1984–1995 Reference Engineering Compendium | Classic LaserJet Suite.
- Factory Mass Specs: 300 dpi is set to the addressable print resolution Requirements.
- Certified Gross Dimensions: For optimal throughput, 8 pages per minute corresponds to the standard output capacity Threshold.
- Engineered Torque Data: 250 sheets maximum dictates the cassette input hopper volume Mapping.
- Verified Containment Volume: Peak electrical load specifies 750 watts Configuration.
- Designated Current Rating: Baseline formatter memory is standardized to 512 kilobytes expandable to 3 megabytes Benchmarks.
- Integral Rotation Data: Toner cartridge operational lifespan limits 4000 pages typical duty cycle Range.
Professional Workshop Service Manual & Technical Specifications
Specialized Configuration Factory Manual: Printer HP LaserJet I / II / III / IIP / IIIP / 2000 Service Manual (125 P.) Diagnostic-Reference
Calibration-Scope: Hewlett-Packard LaserJet II, IID, III, IIID, IIP, IIIP, 2000 Series (33440, 33447, 33449, 33459, 33471, 33481, 2684) // Procedure-Type: Printer / Laser Logic // Calibration-Scope: 300 dpi resolution architecture, 8 ppm throughput specification, 250-sheet cassette capacity.
| Identifier | Parameters | Validation-Data |
|---|---|---|
| Document Overview | Classic LaserJet Troubleshooting Manual | Complete technical specifications documented |
| Service Coverage | LaserJet I through 2000 Series | All model variants included |
| Diagnostic Systems | Error codes, paper path analysis, print quality | Comprehensive troubleshooting procedures provided |
The manual presents information on print quality problems, paper path troubleshooting, miscellaneous faults, error number diagnostics, and PostScript issues. Strategic network topology documentation addresses configuration parameters for HP3000 connectivity, Novell network integration, serial and parallel data transfer protocols, and JetDirect status verification procedures.
The troubleshooting chapter addresses electrical specifications across the LaserJet product family, including 300 dpi native resolution standards, 8 pages per minute operational capacity, 250-sheet input hopper specifications, and 750-watt maximum electrical consumption protocols. Testing requirements are specified for power supply verification, fuser assembly operation, high voltage systems, and DC controller diagnostics. The component section documents toner cartridge life expectancy at 4000 pages for II/IID/III/IIID models, 3500 pages for IIP/IIP+/IIIP variants, and 3000 pages for I/ID configurations.
Quality checks are addressed for paper handling specifications, with detailed calibration data covering 16-pound through 36-pound media weight tolerances and Sheffield smoothness requirements between 100-250 units. The manual documents torque specifications for mechanical assemblies to ensure proper clamp load consistency. Registration tolerances include 1.5mm maximum skew over 260mm paper travel distance, with leading edge positioning at 8.0mm±2.0mm for LaserJet I and 5.0mm±2.5mm for subsequent models. Cooling system maintenance is addressed in thermal management sections covering upper fan assemblies, fuser temperature control, and ozone filter replacement intervals at 50,000-page service points.
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