How to Resolve the 009-654: CTD (ADC) Sensor Error on the E525w Dell Color Laser Printer
Summary: Solution for Sensor Error on the E525w Dell Color Laser Printer (Error 009-654).
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Symptoms
- Turn the power off to the printer and unplug from the wall outlet.
- Power the printer back on. If the error still occurs continue to set 3.
- Power off the printer.
- Push the rear cover release handle and open the rear cover.
- Clean the CTD sensor inside the printer with a clean dry cotton swab.
- Close the rear cover
Cause
More information can be found in the E525w Users Guide.
Resolution

More information can be found in the User Guide for your model printer, or go to our Printer Support site for additional information, troubleshooting articles and videos.
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Affected Products
Dell E525w Color Multifunction PrinterArticle Properties
Article Number: 000135897
Article Type: Solution
Last Modified: 18 Sep 2025
Version: 9
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