Minolta Di251 Service Manual page 232

<FD>
Requirement
• The difference should be within ±1.0 % of the actual length.
• Adjust so that the following specifications are satisfied with a scale length of 300 mm.
Zoom Ratio
Full size (×1.000)
NOTE
• This adjustment must be made when the CCD Unit has been replaced and after the
adjustments of Registration (CD and FD) (Printer) have been made.
Adjustment Procedure
Specification
300 ±3.0 mm Zoom Adjust (FD)
1. Place a scale in parallel with the Original Length
Scale and make a copy.
Use the full size (×1.000) mode and A3 or 11 × 17
paper.
If the scale is of plastic and transparent, place a
blank sheet of paper over it.
1167D112AA
2. Measure the length of the scale on the copy to
find the difference.
If the difference is outside the specification,
adjust by following the procedure shown below.
1138D154AA
D-51
Adjust Mode Setting Range
0.990 to 1.010