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[Color Adjustment, Masking Table]
IC101 is a color adjustment IC.
During the printing of Y, M, and C, it performs color rotation, RGB-YMC conversion of the
printed data.
It also performs color adjustment using the look-up table memory.
The table data is memorized by the CPU program ROM. (UP-D2550 (For J) only) The following
shows the data flow.
Y (MAIN)
Y PRINTING
COLORO = H
COLOR1 =L
C (SUB1)
M (SUB2)
M (MAIN)
M PRINTING
COLORO =L
Y (SUB1)
COLOR1 =H
C (SUB2)
C (MAIN)
C PRINTING
COLORO =H
M (SUB1)
COLOR1 =H
Y (SUB2)
M (MAIN)
BW PRINTING
COLORO =L
Y (SUB1)
COLOR1 =L
C (SUB2)
IC105 and IC106 are two ROM data conversion type masking ROMs. They correct deviation in
the ideal color reproduction and color of the print. (UP-D2550 (For J) only)
In the case of the UP-D2500 (For UC and CE), the data output from the color adjustment IC101 is
sent directly to the PRT-11 board (CN102) without going through IC105 and IC106.
UP-D2500(UC,CE)
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