Ricoh B156 Service Manual page 223

Action 3 (parallelogram image in platen mode)
Parallelogram slants to the right
Parallelogram slants to the left
1. Remove the rear cover, scanner left cover, and upper left cover.
2. Mark the position of the left scanner reinforcement plate by drawing a line
along the lower edge (see photograph below).
3. While holding the scanner unit in place, loosen the 6 screws of the left scanner
reinforcement plate.
Note: The scanner must be held in place, as it will tend to sink due to its own
weight.
4. Raise or lower the scanner with respect to the reference line, then tighten the
screws.
Left scanner reinforcement plate
SM
CÓPIA NÃO CONTROLADA
SKEWED, TRAPEZOID, AND PARALELLOGRAM IMAGES
Raise the left side of the scanner unit.
Lower the left side of the scanner unit.
Mark the
line
4-33
CÓPIA NÃO CONTROLADA
B156/B220