GRAPHTEC CS2000 User Manual page 48

5. DAILY MAINTENANCE
Mounting the Document Hold-Down Unit
(1) While holding the document hold-down unit by the handle-ring at each side, lower the
document hold-down unit straight down into the scanner.
(2) Push down the handle-rings on each side of the document hold-down unit.
(3) Close the top cover, holding it in the center.
The document hold-down unit has a symmetrical shape, so it is physically possible
to mount it with its right and left sides reversed. Because the scanner's precision
has been adjusted before shipment from the factory, however, its reading precision
will decrease extremely if you mount the document hold-down unit in reverse.
Before mounting the document hold-down unit, be sure to check its proper orientation
as indicated on the seals attached to the scanner and the document hold-down unit.
Fully insert the document hold-down unit to the bottom end. If the document hold-
down unit is not pressed down, this will result in reduced image quality and paper
jamming.
5 – 2 CS2000