Carriage & PC Main doesn't detect pens
Last updated: February 22, 2026
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HP Designjet T610 21:13 error fix
This is how to repair the HP Designjet T610 21:13 error fix. The foam ink sponge part expands when ink comes into the asorptive ...
Carriage & PCA Main doesn’t detect pens.
- 1
Reboot. Check Trailing Cable connections, replace if damaged, check printheads, check thr Flex xircuit contacts, repalce Carriage PCA, replace Main PCA
Reference diagrams for common repair procedures related to this error:
Carriage Belt Replacement
Note: These diagrams are for reference only. Always consult official HP service documentation and follow proper ESD precautions.
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The mechanism that moves the printheads back and forth across the media during printing. It rides on a guide rail and is driven by the scan-axis motor via a belt.
The main logic board inside an HP DesignJet printer that controls all operations, including processing print jobs, managing ink delivery, and communicating with connected devices.
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