Scanner Axis Motor Malfunction
Last updated: February 21, 2026
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replacing oops t830 t730 t650 t630 t250 t520 t120
The scanner's internal motor, responsible for moving the CIS sensor carriage, has encountered an error. This prevents the scanner from moving during calibration or scanning, leading to scan failures.
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Turn the printer off and then on again.
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Carefully open the scanner lid and check for any obstructions (e.g., paper, debris) that might be blocking the scanner carriage path.
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Ensure the scanner carriage moves freely by gently pushing it by hand (when the printer is off).
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If the error persists, contact HP Support.
Model-Specific Notes: • T-Series MFP (T1700dr, T850 MFP, T950 MFP): Check the entire length of the scanner's encoder strip for dirt, damage, or dislodgement. It's usually a clear or translucent strip running parallel to the scanner bar. • Z-Series MFP (Z9+dr): These models may have a more robust scanner mechanism. Listen for the specific sound of the motor attempting to move. Access the service menu for 'Scanner Motor Test'. Expert Insight: After checking for physical obstructions, power off the printer and carefully inspect the scanner's drive belt for tension and damage. Also, clean the encoder strip with a lint-free cloth and isopropyl alcohol. If the motor is making noise but not moving the carriage, the belt might be broken or dislodged. If there's no motor sound, check the motor's electrical connection and the scanner PCA. A failing motor often requires replacement of the entire scanner assembly.
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Glossary Terms
Related Questions
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.
Optical or mechanical sensors that detect the presence, type, width, and position of print media loaded in the printer.
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.
The process of adjusting the printer's color output to match a known standard, ensuring consistent and accurate color reproduction.
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 motor responsible for feeding media through the printer in precise increments between each pass of the printhead carriage.
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