Introduction
If the HP Deskjet fails to produce quality scans or copies, and you have already checked that the scanner glass is clean and that there are no other problems, you may need to replace the Scanner Bar/Light inside the printer. This part is the sensor that illuminates and captures an image of the document you are trying to scan or copy. The steps for removing this part are included in the following guide.
What you need
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Open the front access panel by placing your finger in the front slot and pulling gently.
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Open the protective lid that is covering the glass. Press gently against the base of the panel to remove the lid from the rest of the printer.
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Remove one 9mm T10 Torx screw from the back of the printer lid.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.