HP 1200 Service Manual - Page 53

Cleaning and recalibrating the copier/scanner Recalibrating the copier/scanner The optional copier/scanner automatically calibrates to the white sheet opposite the image sensor at the beginning of each scan or copy job. Keep the white sheet clean to make sure the optional copier/scanner calibrates correctly. See "Cleaning the scanner path" on page 51 for information about cleaning the white sheet. 1 Cleaning the scanner path You might have to clean the copier/ scanner if: ! You can smudge the ink on documents you scan. ! The documents have excessive 2 amounts of dust or dirt on them. ! There are smudges or other marks on documents or scans of documents. ! The scanned output has lines or defects that were not on the original. Note Be careful not to touch the glass surface of the image sensor. If you inadvertently touch the glass, clean it according to the instructions below. 1 Unplug the printer to turn the power off, and wait for the copier/scanner to cool. 2 Open the scanner door. EN Cleaning the equipment 51