Error in the Engine PCA
Last updated: February 22, 2026
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86:01 hp Designjet t series repair
Any factor that causes a problem with the movement of the carriage can cause this message to appear, such as a dirty or broken ...
NVM backup: not found, read, write or read back error.
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Reboot, replace the PrintMech PCA,Replace Formatter
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A numeric or alphanumeric code displayed on the printer's front panel or in diagnostic logs that identifies a specific hardware or software malfunction.
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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