Error 21:4:Medium Severity

Primer Error, Primer motor, Servo Shutdown, Servo Fault

Last updated: February 22, 2026

Severity:Medium Severity

Affected:0 models

DIY Fix:Possible

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 ...

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What This Error Means

Primer Error, Primer motor, Servo Shutdown, Servo Fault

Step-by-Step Troubleshooting Guide

1
Turn off/on. Check service station path for obstacles, perform service station diagnositic , replace service station, repalce PrintMech PCA

Technical Service Diagrams

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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Glossary Terms

Service Providers

Related Glossary Terms

Scan-Axis Motor

The motor that drives the carriage assembly horizontally across the platen. It's responsible for the precise left-right movement of the printheads during printing.

Error Code

A numeric or alphanumeric code displayed on the printer's front panel or in diagnostic logs that identifies a specific hardware or software malfunction.

Paper Advance Motor

The motor responsible for feeding media through the printer in precise increments between each pass of the printhead carriage.

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