Oki MB770 Service Manual

45641001TH Rev.1
4-17 /
Oki Data CONFIDENTIAL
4.4.5 Judgment threshold for ACS (common for copy and network scan)
Thejudgmentlevelisadjustedfortheautomaticidenticationofwhethertheoriginalsetonthe
glassisblackorcolor.Namely,thisistoadjustthejudgmentlevelusedwhen“AutoColor”is
selectedatcolormodes.Thesameadjustmentvalueissimultaneouslyappliedtoallcasesof
originalsontheoriginalglassforcopierfunctionsandnetworkscanningfunctions,andthose
placed on the RADF.
<AdjustmentMode(05)>
Code Itemtobeadjusted Contents
7630 Judgment
threshold for ACS
Thelargerthevalueis,themoreanoriginaltendstobejudged
asblackevenattheAutoColorMode.Thesmallerthevalueis,
themoreittendstobejudgedascolor.
Acceptable values: 0 to 255 (Default: 70)
<Procedure>:
The procedure is the same as that of

P.4-15“4.4.2Densityadjustment”.
4.4.6 Sharpnessadjustment
Ifyouwanttomakescanimageslooksofterorsharper,performthefollowingadjustment.The
adjustmentcanbemadeforeachofthecolormodesandoriginalmodesindependently.
<AdjustmentMode(05)>
Code Color mode Original mode Contents
8354 Full Color Text/Photo Thelargerthevalueis,thesharpertheimage
becomes;whilethesmallerthevalueis,the
softer the image becomes.
Thesmallerthevalueis,thelessmoiretendsto
appear.
The acceptable values are 0 to 255.
Thecentervalueis128.
8335 Text
8336 Photo
8375 Custom mode
7430 Black Text/Photo
7431 Text
7432 Photo
7470 Custom mode
7433 Gray Scale −
Notes:
Youhavetomakeadjustmentbybalancingbetweenmoireandsharpness.
<Procedure>
The procedure is the same as that of

P.4-15“4.4.2Densityadjustment”.

Oki MB770 Specifications

General

Brand	Oki
Model	MB770
Category	All in One Printer
Language	English