Sharp AR-651 Service Handbook page 53

Code Items to adjust
570 Range correction on Photo/Text
original manually set
on the original glass
571 Photo
572 Text
593 Gamma data Photo/Text
594 slope adjustment Photo
595 Text
620 Sharpness Photo/Text
adjustment
621 Photo
622 Text
648 Adjustment of Photo/Text
blurred/thin
spotted text
657 Normal
658 Toner save
Adjustment mode (05)
Accept-
Function Default able
value
PPC JPN:44 11~14, Set whether the value of the
UC, 21~24, background peak and text peak
EUR:12 31~34, are fixed or not. One's place is an
41~44 adjustment for "automatic
densitiy" and ten's place is one
for "manual density". If they are
PPC 12 fixed, the range correction is
performed with standard values.
The values of the background
peak and text peak affect the
reproduction of the background
density and text density respec-
PPC 44 tively.
1:
2:
3:
4:
PPC 0 0~9 When the value increases,
PPC 0 0~9 the image becomes darker.
PPC 0 0~9
PPC JPN:1 0~99 The number of units: Enter one of
UC:31 the following fixed values in the
EUR:31 copying mode.
1: Text/Photo 2: Photo 5: Text
The number of tens: intensity
PPC 2 0~99 0: default value
1 to 9: when the value increases,
the image becomes sharper.
• In case of Text/Photo mode
(code 620),
PPC 5 0~99 2 1
PPC JPN:152 0~255 Adjustment of the blurred/thin
UC:30 spotted text
EUR:30 05-648: With increasing the
value, the thin spotted text is
PRT 4 0~9 suppressed, and with decreasing
it, the blurred text is suppressed.
05-657, 658: With decreasing the
value, the thin spotted text is
PRT 6 0~9 suppressed, and with increasing
it, the blurred text is suppressed.
2 - 29 AR-651/810 ERROR CODES AND SELF-DIAGNOSIS
Contents
Background peak Text peak
fixed fixed
varied fixed
fixed varied
varied varied
Fixed value for the Text/
Photo mode
Enter a number (0 to 9)
Operation
procedure
1
1
1
1
1
1
1
1
1
1
1
1