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45641001TH Rev.1 4-7 /Oki Data CONFIDENTIAL4.2.4 Background adjustmentThe density of the background can be adjusted as follows. Mode (05)>ColormodeOriginal modeRemarksText/Photo Text Photo CustomModeBlack 7100 7101 7102 7106 The larger the value is, the darker the backgroundbecomes.Acceptable values: 0 to 255 (Default: 128)Make a test copy and compare the image obtained with the current settings; if necessary, makeadjustment using the following procedure.The procedure is the same as that of & P. 4-5 “4.2.2 Density adjustment”.4.2.5 Judgment threshold for ACS (common for copy and scan)Judgment levels for automatically identifying whether an original is color or black are adjusted.This adjustment is for judgment levels when “Auto Color” is selected as a color mode. The sameadjustment value is simultaneously applied to all cases of originals on the original glass forcopier functions and network scanning functions, and those placed on the RADF. Mode (05)>Code Item to be adjusted Contents7630 Judgment threshold forACSThe larger the value is, the more an original tends to bejudged as black . The smaller value is, the more it tends tobe judged as color.Acceptable values: 0 to 255 (Default: 70)Make a test copy and compare the image obtained with the current settings; if necessary andmake adjustment.(1) While pressing [0] and [5] simultaneously, turn the power ON.(2) Key in a code and press the [START] button.(3) Key in a sub-code and press the [START] button.(4) Key in an adjustment value.(To correct a value once keyed in, press the [CLEAR] button.)(5) Press the [OK] or [INTERRUPT] button to store the value. → The equipment goes back tothe ready state.(6) Turn the power OFF and back ON in the normal mode, and then make a copy.(7) If the desired image quality has not been attained, repeat step (1) to (6).
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