OKIDATA OKIPAGE 8c, Service Manual

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Service Guide - OKIPAGE 8c
Chapter 4 Adjustments
4.2.2 Color Registration Using the Operator Panel (Color deviation correction)
After replacing a part of the page printer, be sure to check whether colors are matched. If not, correct the
deviations.
- Method of correcting color deviations
(a) Set the User Maintenance mode, select the Color Deviation Correction mode (COLOR REG ADJUST
EXECUTE), and print out a color chart (PRINT PATTERN). In this mode, the page printer cannot receive
any data from the host computer.
(b) Watch the printed color and check color deviations (#1 to #3 for yellow, #4 to #6 for magenta, and #7
to #9 for cyan).
(c) After a color chart is printed out, the menu shows the ADJUST #1 mode for entering a correction
value for the left (#1) yellow chart.
(d) Enter correction values for #1 (left yellow chart), #2 (middle yellow chart) and #3 (right yellow chart).
Similarly enter correction values for #4 to #6 for left, middle, and center magenta charts and for #7 to #9
for left, middle, and center cyan charts.
(e) After entering all correction values, print out a new color chart (by PRINT EXECUTE), and check color
deviation.
(f) Repeat the above steps until all colors match.
(g) Press the ONLINE switch to exit the color correction mode (by EXIT). Initialize the page printer and
enter the operation mode.
The menus for correction of color deviations are as follows: