Dec. 1996 © TOSHIBA CORP. 1 - 33 2060, 2860/70 ADJUSTMENT
[A] Focus and horizontal reproduction ratio adjustment for 100%
(1) Make an actual size-copy and check the focus and horizontal reproduction ratio. If adjustment is
necessary, the adjustment data must be re-entered as follows.
• Poor focus and reduced horizontal reproduction ratio: reduce the mirror position data (code 61).
• Poor focus and enlarged horizonal reproduction ratio: increase the mirror position data (code 61).
• Good focus, but reduced horizontal reproduction ratio: increase the lens position data (code 60).
• Good focus, but enlarged horizontal reproduction ratio: decrease the lens position data (code 60).
Notes:
1. The focus and horizontal reproduction ratio change when the lens or the mirror is moved. But the
lens position data mainly change the horizontal reproduction ratio and the mirror position data
mainly change the focus.
2. The horizontal reproduction ratio should be adjusted after adjusting the focus, then check the focus
again.
3. If the horizontal reproduction ratio is incorrect (within ±0.5%), it will not be possible to achieve good
focusing.
4. Because of the lens characteristics, there is a greater margin for focusing at the center of the image
than at the corners.
5. For 200% and 50%, the horizontal reproduction ratio (lens position) will automatically assume the
optimum condition when the focus (mirror position) is adjusted. So the horizontal reproduction ratio
adjustment is not normally necessary.
[B] Focus and horizontal reproduction ratio adjustment for 200%
(1) Make a 200% copy and check the focus and horizontal reproduction ratio.
(2) If the focus and horizontal reproduction ratio are poor, re-enter the data of code 63 to adjust them.
Adjustment of the code 62 is usually unnecessary.
[C] Focus and horizontal reproduction ratio adjustment for 50%
(1) Make a 50% copy and check the focus and horizontal reproduction ratio.
(2) If the focus and horizontal reproduction are poor, re-enter the data of code 65 to adjust them.
Adjustment of the code 64 is usually unnecessary.
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