Scan-Axis Motor Encoder Error
Last updated: February 21, 2026
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HP PLOTER T1300 Check & Clean Error code: 47:01 & 21:13 Eps: 02
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This error indicates a problem with the scan-axis motor's encoder, which provides feedback on the motor's position and speed. Without accurate encoder data, the printer cannot precisely control the carriage movement, leading to immediate printing cessation.
- 1
Turn off the printer and unplug the power cord. Carefully inspect the carriage area for any obstructions.
- 2
Gently try to move the carriage by hand to see if it moves freely. Do not force it if it's stuck.
- 3
Power cycle the printer: plug it back in, turn it on, and observe if the error clears during initialization.
Model-Specific Notes: • T-Series (e.g., T930, T1530): The encoder is often integrated into the motor. Check the motor's cable connection to the main PCA for security. • Z-Series (e.g., Z6, Z9+): These models have very precise carriage control. Any encoder issue will halt operation. Ensure the motor is not overheating. Expert Insight: This error often points to a failure of the scan-axis motor itself, as the encoder is typically an integral part. Before replacing the motor, verify that all cable connections are secure and free from damage. A multimeter can be used to check for continuity in the motor's wiring harness. If the motor feels unusually hot, it might be drawing excessive current, indicating an internal fault. This issue almost always requires replacement of the scan-axis motor assembly.
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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.
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 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.
A transparent plastic strip with precisely printed markings that the printer uses to determine the exact position of the carriage as it moves across the platen.
Optical or mechanical sensors that detect the presence, type, width, and position of print media loaded in the printer.
A set of printer settings optimized for a specific media type, including ink limits, drying time, number of passes, and color profile.
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