Gradation is the gradual changing of the color depth and brightness. If the gradation is not reproduced correctly and the printed data greatly differs from the source data or original, calibrate the gradation (calibration). Gradation calibration is performed automatically according to usage of the machine and changes in the environment, but it can also be calibrated manually, as needed. You cannot perform calibration while printing or scanning or when a toner cartridge has reached the end of its lifetime.
Gradation can be manually calibrated in two ways: Quick Adjust or Full Adjust. First, try Quick Adjust for easy calibration. If you do not see an improvement, perform Full Adjust to calibrate more accurately.
The machine performs automatic adjustment (automatic calibration) in accordance with changes in the usage condition or environmental conditions.
A certain amount of toner in toner cartridges is used when calibration is performed, whether it is initiated automatically or manually. Frequent calibration may affect the lifetime of toner cartridges.
When the remaining amount of toner in cartridges is low, performing calibration may result in disruption of color balance. If this phenomenon actually occurs after calibration, it is recommended that you replace any toner cartridges of low remaining amount. Checking the Remaining Amount of Consumables
Simple Calibration (Quick Adjust)
Use the control panel to perform Quick Adjust. You cannot perform Quick Adjust using Remote UI from a computer.
1
On the control panel, press [Menu] in the [Home] screen. [Home] Screen
Calibration is performed. When calibration is completed, the message [Finished.] appears, and then the [Auto Adjust Gradation] screen is displayed. If the result after performing Quick Adjust is not satisfactory, perform Full Adjust. Calibrating More Accurately (Full Adjust)
Calibrating More Accurately (Full Adjust)
Scan a calibration image (image used for calibration) printed with the machine on the platen glass multiple times to calibrate the gradation more accurately. The result calibrated here is used until Full Adjust is performed next time.
Use the control panel to perform Full Adjust. You cannot perform Full Adjust using Remote UI from a computer.
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)]*.
To print on plain paper using the Superfine function, first perform correction with [Standard (Plain)]* and then with [For Printer 1200 dpi]*.
* Perform correction using plain paper.
1
On the control panel, press [Menu] in the [Home] screen. [Home] Screen
The available paper sizes and types are displayed on the confirmation screen.
3
Select the item to adjust.
4
Check that the size and type of paper displayed on the screen is loaded in the machine, and press [OK].
5
Confirm the procedure, and press [Start].
An adjustment image is printed.
Print and scan the adjustment image 3 times if [Standard (Plain)] has been selected or 2 times if [For Printer 1200 dpi] has been selected in step 3.
6
Open the feeder or the platen cover after the screen displayed during printing disappears.
7
Place the adjustment image on the platen glass.
Align the top edge with the numbered black bar on the adjustment image with the back edge of the platen glass and place the adjustment image with the print image facing down.
8
Gently close the feeder or the platen cover.
9
Press [Start Scanning].
The placed adjustment image is scanned, and then the second adjustment image is printed.
10
Open the feeder or the platen cover, remove the first adjustment image, and then place the second adjustment image on the platen glass.
In the same way as for the first adjustment image, place the adjustment image with the print side facing down while checking that the black stripe is placed on the back side of the machine.
11
Gently close the feeder or the platen cover.
12
Press [Start Scanning].
When [Standard (Plain)] is selected in step 3, the third adjustment image is printed after the placed adjustment image is scanned.
When [For Printer 1200 dpi] is selected in step 3, the adjustment is executed after it is scanned. Proceed to step 16.
13
Open the feeder or the platen cover, remove the second adjustment image, and then place the third adjustment image on the platen glass.
In the same way as for the first adjustment image, place the adjustment image with the print side facing down while checking that the black stripe is placed on the back side of the machine.
14
Gently close the feeder or the platen cover.
15
Press [Start Scanning].
The adjustment image is scanned and adjustment starts.
16
When a message appears notifying that adjustment is complete, open the feeder or the platen cover, and remove the adjustment image.
17
Gently close the feeder or the platen cover.
When [Could not perform correction.] Appears
Check that operations are performed with the procedure above. In particular, check the following:
In 4, check that available paper is loaded in the drawer.
In 7, check that the calibration image is properly set. Be careful of the print side and the position of the black band.
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