Printer Gamma Correction; Copy Mode - Ricoh B132 Service Manual

IMAGE ADJUSTMENTS

3.19.6 PRINTER GAMMA CORRECTION

ACC adjustment done at installation is usually sufficient to adjust the color balance
for optimum performance. Printer gamma correction is required for fine adjustment
to meet a customer requirement.
The printer gamma curve created during ACC can be modified with SP modes. The
gamma data for highlight, middle, shadow areas, and IDmax can be adjusted. The
adjustable range is from 0 to 30 (31 steps).

Copy Mode

KCMY Color Balance Adjustment
The adjustment uses only "Offset" values.
Important: Never change "Option" values (default value is 0).
Highlight (Low ID)
Middle (Middle ID)
Shadow (High ID)
ID max
Offset
There are four adjustable modes. You can get access to these with SP4918 009:
• Copy Photo mode
• Copy Text mode
• Copy Text (Single Color) mode
• Copy Photo (Single Color) mode
B132/B200
Levels 2 through 5 in the C4 chart 10-level scale
Levels 3 through 7 in the C4 chart 10-level scale
Levels 6 through 9 in the C4 chart 10-level scale
Level 10 in the C4 chart 10-level scale (affects the entire image
density.)
The higher the number in the range associated with the low ID,
middle ID, high ID, and ID max, the greater the density.
3-182
B146R967.WMF
SM