Independent Resource: Not affiliated with or endorsed by HP®.

Error 0090-0006-0086Medium Severity

FW – (EH-CIO) connectivity heart beat stop / process lost

Last updated: February 22, 2026

Severity:Medium Severity
Affected:0 models
DIY Fix:Possible
HP DesignJet T2600 ps | system error: 0065-0006-0060 | dirty encoder strip, rough rail

Featured Video

HP DesignJet T2600 ps | system error: 0065-0006-0060 | dirty encoder strip, rough rail

0 views
What This Error Means

Connectivity process lost

Step-by-Step Troubleshooting Guide
  1. 1

    Run the 00103 Check connectivity service diagnostic. Run the 09901 Hard reset connectivity service diagnostic. Upgrade the firmware to the latest version.

Technical Service Diagrams

Reference diagrams for common repair procedures related to this error:

Carriage Belt Replacement

HP DesignJet Carriage Belt Replacement Diagram

Formatter Board Location & Connections

HP DesignJet Formatter Board Location Diagram

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

Still Having Issues?

Get connected with a certified DesignJet repair specialist in your area. Fast response, competitive quotes.

Was this page helpful?

Related Videos

HP DesignJet T2600 ps | system error: 0065-0006-0060 | dirty encoder strip, rough rail

DesignJet 100 - 130 reading error codes

HP DesignJet T2600 ps | system error 0065-0002-0008

HP latex 375 error 86:01 scan axis motor problem.

HP designjet T2600 ps | system error 0075-0004-0059 | dusty motor sensor

Quick Actions

Need help with your DesignJet printer?

Need Help With Your DesignJet?

Connect with repair specialists in your area. Get a custom quote for your DesignJet issue.

DesignJet Error Code

An independent resource for HP DesignJet printer error codes, troubleshooting guides, and professional repair connections.

Legal

  • Privacy Policy
  • Terms of Service

© 2026 DesignJet Error Code Hub. This is an independent resource and is not affiliated with, endorsed by, or sponsored by HP Inc. DesignJet is a trademark of HP Inc.