Oki MB760 Service Manual page 203

[I] adjust image quality
(1) Start up with the Adjustment mode (05).
(2) Enter the password, and then press the [OK] button.
(If the password is not set for Service, press the [ENTER] button without entering
anything.)
(3) Perform "Automatic gamma adjustment" (05-7165).
 P. 4-4 "4.2.1 Automatic gamma adjustment"
(4) Turn the power OFF.
45641001TH Rev.1
Oki Data CONFIDENTIAL
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