System Settings77-24 VL6522c/VL5522c/VL4522c7.1Gradation AdjustmentAdjust irregular gradation levels of print images.0 Adjust each correction item three times.1 Turn off the main power switch of this machine.2 Wait at least 10 seconds, and then turn it on again.3 Press the [Utility/Counter] key ö [Administrator Settings] ö [System Settings] ö [Expert Adjustment]ö [Gradation Adjustment].4 Press the [Start] key.The image stabilization operation starts.The correction items on the right of the touch panel become enabled.5 Select an item to be corrected.6 Select paper used to output a test pattern.% As a paper size, select A3 w, 11 e 17 w, A4 v, or 8-1/2 e 11 v. By default, A3 w is selected.% Paper in the bypass tray cannot be selected.7 Press the [Start] key.A test pattern is printed.% Selecting A3 w or 11 e 17 w outputs one sheets, and selecting A4 v or 8-1/2 e 11 v outputs twosheets.8 Place the printed test pattern on the original glass in orientation displayed in the touch panel.% For the test patterns of A4 v or 8-1/2 e 11 v, place the output two sheets side by side.9 Place 10 or more sheets of blank paper on top of the test pattern to prevent it from becomingtransparent.10 Close the ADF.11 Press the [Start] key.The test pattern is scanned.The gradation level is automatically adjusted.12 Repeat steps 5 through 11 two more times.
