Clean the ADF (Auto Document Feeder) - TR4520

Article ID: ART177461 | Date published: 09/09/2020 | Date last updated: 09/09/2020


If you experience lines going down copies or scans, or if you send a fax from the ADF and the receiver indicates that a line is running down the page, you may need to clean the ADF.


If blank lines appear on copies, scans, or sent faxes when using the ADF (Auto Document Feeder):

Figure: Example of black vertical lines through copy from ADF

Clean the ADF to resolve this problem.

Be sure to use a soft, clean, lint-free and dry cloth to clean the ADF (Auto Document Feeder).

 Before cleaning the printer, turn it off and unplug it.

 The power cannot be turned off while the printer is sending or receiving a fax, or when unsent faxes are stored in the printer's memory. Make sure the printer has finished sending or receiving faxes before turning it off.

 Remember that faxes cannot be sent or received while the printer is off.

 Unplugging the printer will reset the date/time setting and erase all documents in the printer's memory. Send faxes or print documents as needed before unplugging the printer.

 To avoid scratching surfaces, do not clean with tissue paper, paper towels, or rough-textured cloth. Additionally, paper dust or fibers may remain in the printer and clog the print head or affect printing quality.

 Never clean the printer with detergent or volatile chemicals such as thinner, benzine, or acetone, which may cause malfunction or damage surfaces.

  1. Open the document cover.

    Figure: Open the document cover

  2. Open the document feeder cover.

    Figure: Open the document feeder cover

  3. Use the cloth to wipe off any paper dust inside the document feeder cover (A).

  4. Wipe glass surface of ADF (B) and inner side of document feeder cover (white area) (C) gently.

    Make sure not to leave any residue, especially on the glass surface.

    Figure: Wipe the document feeder cover (A), the glass surface of the ADF (B), and the inside of the document feeder cover (C)

     If any foreign substances such as glue, ink or correction fluid are adhered to the glass surface of the ADF (B), some black streaks will appear on the scanned image. In this case, wipe the dirt off gently.

  5. When finished, push the document feeder cover closed until it clicks into place.

  6. Close the document cover gently.

If you continue to experience vertical lines when using the ADF after cleaning, the printer will require servicing.

There are two options currently available to you.

  1. Warranty Service – If you are within the 1-year manufacturer’s warranty and have your proof of purchase you are entitled to service or replacement. If you have purchased a CarePak Canon extended warranty, you may be entitled to additional options.  Please create or log into your Canon Account to obtain service.
  2. Out of Warranty – If you are outside of your warranty period, you do qualify for a replacement through the Canon Upgrade Program. Please contact our Sales group to inquire about your upgrade options at 866-443-8002.
To verify your support options please create or log into your Canon Account.

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