HP LaserJet 4345 Multifunction Printer series - Horizontal lines (ADF)

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Horizontal lines (ADF)

Horizontal lines on copied documents indicate that components of the ADF need to be
cleaned or that the scanner needs to be calibrated.

1. Clean the ADF. See

Cleaning the ADF delivery system


2. If the mylar strip is dirty or worn, replace it. Replacement mylar strips are stored in an

envelope that is underneath the white, vinly ADF backing. Follow the instructions that
are in the envelope.

3. If the problem persists, calibrate the scanner. See

Calibrating the scanner



Correcting print-quality and copy-quality problems