FW – (EH-CIO) connectivity heart beat stop / process lost
Last updated: February 22, 2026
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HP DesignJet T2600 ps | system error: 0065-0006-0060 | dirty encoder strip, rough rail
Connectivity process lost
- 1
Run the 00103 Check connectivity service diagnostic. Run the 09901 Hard reset connectivity service diagnostic. Upgrade the firmware to the latest version.
Reference diagrams for common repair procedures related to this error:
Carriage Belt Replacement

Formatter Board Location & Connections

Note: These diagrams are for reference only. Always consult official HP service documentation and follow proper ESD precautions.
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