Adjustment Of The Magnification Ratio Of The Lens - Toshiba e-STUDIO650 Service Handbook

(2) Adjustment of the magnification ratio of the
lens
Notes: 1. Perform magnification ratio adjustment of the
lens only when the lens unit has been
removed or is to be replaced.
2. Before making this adjustment, check that
the primary scanning reproduction ratio of
the printer is correct.
a. Place a ruler on the original glass and make a copy on a A4/LT-sized paper at a 100% reproduction
ratio.
b. Compare the copied ruler with the actual ruler to see the difference in size.
c. Make adjustment following the procedure below, so as to make the distance between each mark on
the rulers match.
Note: After this adjustment is finished, be sure to perform the "deviation adjustment of the scanner primary
scanning start position".
<Adjustment procedure>
1. Remove the original glass and lens cover.
2. Screw the two pins for the lens magnification adjustment to the long hole at the lens base.
3. Loosen the 2 screws fixing the lens unit.
e-STUDIO550/650/810 ADJUSTMENT
Feeding direction
Copied ruler
3 - 30
Actual ruler
Adjustment pin
June 2002 © TOSHIBA TEC