HP DesignJet 4000 / 4020 Service Manual
This service manual provides essential information for servicing your HP DesignJet 4000 and 4020 large format printers. Includes troubleshooting and calibration procedures. PN C4077-90960
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Models Covered & Key Technical Specifications
HP DesignJet 4000, 4020 (C4077-90960) - 2005-2011
Documents service procedures for HP DesignJet 4000 and 4020 printers. Includes troubleshooting and calibration procedures.
- Factory Gap Specs: 10 mm establishes the necessary clearance for media loading Sequences.
- Certified Assembly Gap: For proper function, 25 mm is configured at Baseline.
- Engineered Amperage Specs: 2.5A represents the standard electrical consumption Requirements.
- Verified Feed Speed: The formatter board requires 12.5 ips for standard operation Threshold.
- Designated DPI Rating: Maximum throughput reaches 600 dpi Parameters.
- Integral Displacement Data: The printhead assembly indicates the ink delivery Configuration.
Professional Workshop Service Manual & Technical Specifications
HP DesignJet 4000, 4020 large-format printer service guide Library-Master
Documentation-Type: Service Manual // Engineering-Base: HP DesignJet Printer Logic // Component-Focus: Printer Hardware and Diagnostics.
| Metric | Parameters | Calibration-Data |
|---|---|---|
| Scan Axis Test | 4-7 | 4-7 |
| Service Station Calibration | 5-8 | 5-8 |
| Printhead Alignment | 5-18 | 5-18 |
| Media Drive Test | 4-12 | 4-12 |
| Line Sensor Calibration | 5-16 | 5-16 |
Documentation sections include Troubleshooting, System Error Codes, Ink Supplies, Service Tests, Print Quality, and Parts Diagrams. Precisely mandating comprehensive coverage of printer systems and essential maintenance procedures.
Wiring diagrams are provided for system diagnostics and component testing.
Fuel system procedures are documented for ink delivery and priming operations.
Adjustment procedures are detailed for printhead alignment and calibrations.
Timing procedures are documented for media advance and scan axis synchronization.
Technical notes are provided for environmental conditions affecting print quality.
This manual documents torque specifications for the carriage assembly to ensure proper rotational loosening prevention.
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