施乐WorkCentre 7220-7225 彩色一体机原版排错拆装查询维修手册

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施乐WorkCentre 7220-7225 彩色一体机原版排错拆装查询维修手册

Image Quality Specifications
The following steps are used to set up the machine for the purpose of making test pattern copies to judge output image color density, balance, and registration.
1.Set the following Customer Mode Settings to the positions listed:
a.Output Color - Full Color
b.Original Type - Photo & Text / Halftone
c.Lighter/Darker - Auto Contrast
d.Variable Color Balance - Normal
e.Color Saturation - Normal
f.Sharpness - Normal
2.Place the Color Test Pattern on the platen. Load 11” X 17 or A3 paper into Tray 1. Make a copy of the test pattern.
3.Compare the copy to the test pattern. Refer to Figure 2 and Table 1 for this evaluation.
Registration and border deletions are checked using the Step Scales on the Geometric Test Pattern, an example of which is shown in Figure 1. All of the scales are 20mm in height, and are made up of four 5mm steps. Step 1 will be described as at the top of the Step Scale, and Step 4 will be described as at the bottom.

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