Adjusting Gradation

If color gradation reproducibility has become so poor that the gradation in the printed or copied image differs markedly from the print data or original document, gradation adjustment may improve the problem.
Adjustments may not be performed effectively if there is not sufficient toner.

C7700 Series / C5700 Series Only

There are two types of adjustments: Full Adjustment and Quick Adjustment.

Full Adjustment

Correct the gradation of an image accurately and optimize reproducibility during printing. Optimized information will be retained until the next accurate correction.
You can use the following paper sizes/types.
C7700 Series Only
Size: A3, A4, 11x17, LTR
Type: Plain
C5700 Series Only
Size: A3, A4, 11x17, LTR
Type: Plain, Heavy 1, Heavy 2 to 7
1
Press  (Settings/Registration)  <Adjustment/Maintenance> <Adjust Image Quality> <Auto Adjust Gradation>.
2
Select the paper to adjust, and press <Full Adjust>.
If you selected <Simple> in <Adjustment Level>, it is not necessary to select the paper. Adjustment is applied to all paper types. Changing the Settings for Adjustment
3
Select the paper source in which the paper you selected in step 2 is loaded, and press <OK>.
4
Press <Start Printing>.
A test page is printed.
5
Place the test page on the platen glass.
Place the test page as indicated by the on-screen instructions.
6
Close the feeder and press <Start Scanning>.
The machine starts scanning the test page.
7
Open the feeder, and remove the test page.
8
Repeat steps 4 to 7.
To complete the adjustment, print the test page four times, and scan it each time it is printed.

Quick Adjustment

This adjustment maintains the optimized status that was acquired by <Full Adjust>. If the result of this adjustment is not satisfactory, perform <Full Adjust>.
1
Press  (Settings/Registration)  <Adjustment/Maintenance> <Adjust Image Quality> <Auto Adjust Gradation>.
2
Select the paper to adjust, and press <Quick Adjust>.
If you selected <Simple> in <Adjustment Level>, it is not necessary to select the paper. Adjustment is applied to all paper types.
3
Press <Start>.

Changing the Settings for Adjustment

You can change the paper and adjustment level to use when performing adjustment.
 (Settings/Registration)  <Adjustment/Maintenance>  <Adjust Image Quality>  <Auto Adjust Gradation>

C3700 Series Only

There are two types of adjustments: Full Adjustment and Quick Adjustment.
If the machine is running without having executed <Full Adjust> or <Quick Adjust> once, it may take time to print the first sheet after turning the power ON.
Adjustment with the feeder can be executed when the Single Pass DADF-C is attached.

Full Adjustment

Correct the gradation of an image accurately and optimize reproducibility during printing. Optimized information will be retained until the next accurate correction.
You can use the following paper sizes/types.
Size: A3, A4, 11x17, LTR
Type: Thin, Plain, Recycled
If the printed color tones are different from the color tones of the print data
Depending on the paper to use for printing and the print settings, perform correction as follows.
To print on plain paper, perform correction with <Standard (Plain)>*1.
To print on heavy paper, first perform correction with <Standard (Plain)>*1 and then with <Standard (Heavy)>*2.
To print on plain paper using the Superfine function, first perform correction with <Standard (Plain)>*1 and then with <For Printer 1200 dpi>*1.
To print on heavy paper using the Superfine function, first perform correction with <Standard (Plain)>*1, then with <Standard (Heavy)>*2, and finally with<For Printer 1200 dpi>*2.
*1 Perform correction using plain paper.
*2 Perform correction using heavy paper.
Performing Full Adjustment with the Feeder
Performing Full Adjustment with the Platen Glass

Quick Adjustment

This adjustment maintains the optimized status that was acquired by <Full Adjust>. If the result of this adjustment is not satisfactory, perform <Full Adjust>.
1
Press  (Settings/Registration)  <Adjustment/Maintenance> <Adjust Image Quality> <Auto Adjust Gradation>  <Standard (Plain)>  <Quick Adjust>.
2
Press <Start>.
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