Gamma Adjustment; Summary - Ricoh G133 Service Manual

Image Adjustment

3.3.4 GAMMA ADJUSTMENT

Clean and/or replace related parts first to solve color quality problems. Do these
procedures if adjustments are necessary:

Summary

To adjust the printer gamma:
Select the print mode you want to calibrate
Print a color calibration test sheet
Make the gradation scales on the printout smooth from the lowest to the highest
density. Adjust the CMY gradation scale at the top of the chart by balancing the density
of the C, M, and Y gradation scales – the CMY gray scale should change smoothly
from minimum to maximum. There should be no coloration.
Examine this color adjustment sheet:
You can adjust 15 points for each color: (example [A]) between 0 (lowest density) [B] and
255 (highest density) [C]. For each point, you can adjust the density within 0 and 255.
G133 3-6 SM