2009 HP Designjet T1770 & T1200 Service Manual

Technical Scope and Features

• Built for owners and workshops servicing the 2009 HP Designjet T1770 & T1200 wide-format printer series
• Official OEM publication P/N Q6659-60089, v.3, dated October 21, 2009
• Contains 56 specific system error code descriptions and associated resolution tables
• Includes how factory workshop documentation is structured regarding internal self-tests and diagnostic menus
• Accessible from your device as soon as the order is placed
• Permanent availability in your purchase account — no re-buy required
• Laid out for standard letter and A4 printing
• Indexed PDF search covers every chapter and appendix
• This 2009 third version is the primary documentation for the T-series launch build, detailing initialization sequences and complex troubleshooting patterns for the scan-axis and ink delivery sub-systems

Troubleshooting and Diagnostics Overview

The 383-page HP Designjet T1770 & T1200 service manual provides a structured reference for identifying mechanical and firmware issues. The documentation opens with comprehensive coverage of printer status indicators, including front panel key combinations for accessing engineering menus and diagnostic modes. Subsequent chapters outline the system error code structure, detailing the hexadecimal breakdown of subsystems, user-defined actions versus those requiring professional intervention, and the logic behind continuable and non-continuable fault states. Detailed procedures are provided for testing individual assemblies, including the carriage, scan-axis, service station, and ink supply systems, helping technicians differentiate between mechanical failures and software-related firmware exceptions.

Specification and Error Code Preview

Technical data within the documentation includes input voltage thresholds of 120 V AC, thermal operational limits between 10–35°C, and system memory specifications requiring 2 GB baseline for standard operation. The manual lists detailed electrical and diagnostic values, such as the 25 W power draw of the formatter board and specific error code sequences related to the printhead, main PCA, and memory management components. System error code 86:01 indicates a potential paper path obstruction or carriage jam, requiring inspection of the media advance drive and pinch wheels. Data-related 79:04 faults are documented as firmware exceptions often tied to corrupt spooling or queue management, with resolution paths focused on factory resets and diagnostic re-initialization. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. This is an official 383-page HP technical publication covering the 2009 HP Designjet T1770 & T1200, documenting error codes, diagnostics, and system maintenance for the wide-format printer series.

Document Reference: Part No. Q6659-60089, v.3, published 2009-10-21