Error 17:Medium Severity

Harness of PCA Main to Printmech not connecting

Last updated: February 22, 2026

Severity:Medium Severity

Affected:0 models

DIY Fix:Possible

Scanner Error 17 Fix! HP M477fnw MFP

This video shows how to fix a scanner error 17 on an HP M477fnw printer. The process involves disassembling the scanner, inspecting the scanner head, and resetting it to its original position. The video ends with the printer being reassembled and tested.

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What This Error Means

Harness of PCA Main to Printmech not connecting

Step-by-Step Troubleshooting Guide

1
Turn off.on. Check interconnection cables, replace harness, replace main pca, replace printmech PCA

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PCA (Printed Circuit Assembly)

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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