[Caution] When you are not loading tab paper, make sure to return the Tab Feeding Attachment-F1 to its holder. Using the Tab Feeding Attachment-F1 for storing

paper other than tab paper may cause a paper jam.

1.1.7.1.21 Automatic gradation adjustment for a custom paper type / Registering and Selecting Paper for Calibration /

Initializing Standard Values for Calibration

[ Manual-related ]

Description

If you perform automatic gradation adjustment for a custom paper type, registering a custom paper type for calibration is required beforehand. You can register

paper for calibration in the following two types of procedure.

- Use the Duplex Color Image Reader Unit-H1

In this procedure, you need to scan the printed test pages 2 times, 1 time for base paper and 1 time for a custom paper type. You need to place test pages on the

platen glass for scanning, but it takes shorter time for the adjustment in comparison to using the Auto Gradation Sensor-A1. The number of sheets required for the

registration is 2 sheets of paper.

- Use the Auto Gradation Sensor-A1

In this procedure, the machine automatically performs the registration by printing test pages. You do not need to scan test pages, but it takes longer time for the

registration in comparison to using the Duplex Color Image Reader Unit-H1. The number of sheets required for the adjustment is 4 sheets of paper. Two basis paper

and two custom paper type to calibrate is output for test pages.

Field Remedy

[Caution]

- If both the Duplex Color Image Reader Unit-H1 and the Auto Gradation Sensor-A1 are attached, select the automatic gradation adjustment method you use in

"Select Method" beforehand. Select "Use Scanner" to use the Duplex Color Image Reader Unit-H1 or "Do Not Use Scanner" to use the Auto Gradation Sensor-A1.

- Confirm that both paper to use as a basis and a custom paper type to register to adjust, described in the following table, are set in paper sources correctly before

starting this procedure.

Basic paper / Custom paper type

Item

Size

Basis Weight/Finish/Whiteness

a) Registering Paper for Calibration

1) Press Settings/Registration > Adjustment/Maintenance > Adjust Image Quality > Auto Adjust Gradation > press Register Paper to adjust > select the destination

for registering new paper to adjust > press "Next".

[Reference] You can register up to three type of paper to adjust and you can overwrite them. When overwriting, you cannot restore the paper settings previously

registered.

2) Select the type for the paper to use as a basis > press "Next".

3) Select the paper source contains the type of paper to use as a basis > press "Next".

[Reference] This machine adjusts the toner and print speed according to the paper type. To make effective adjustments, select the correct paper type.

4) Press "Start Printing". First test page is output.

If you are using the Auto Gradation Sensor-A1, steps 5) to 6) are not necessary. Proceed to step 7).

5) Place the first test page face down on the platen glass, with the black bar along the top back edge of the platen glass. Press "Start Scanning".

6) Remove the first test page from the platen glass.

7) Select the paper source that contains the custom paper type to adjust > press "Next".

[Reference] This machine adjusts the toner and print speed according to the paper type. To make effective adjustments, select the correct paper type.

8) Press "Start Printing". Second test page is output.

If you are using the Auto Gradation Sensor-A1, the following steps are not necessary.

9) Place the second test page face down on the platen glass, with the black bar along the top back edge of the platen glass. Press "Start Scanning".

10) Remove the second test page from the platen glass.

b) Selecting Paper for Calibration

You can select the type of paper for calibration.

1) Press Settings/Registration > Adjustment/Maintenance > Adjust Image Quality > Auto Adjust Gradation.

2) Press "Select Paper to Adjust" > select the type of paper to adjust > press "OK".

[Caution]

- This machine adjusts the toner and print speed according to the paper type. To make effective adjustments, select the correct paper type.

- To perform the auto gradation adjustment to some custom paper type, select that custom paper type, which is registered in advance, for paper to adjust.

c) Changing Adjustment Level

You can change the adjustment level for auto gradation adjustment.

[Reference] When you set "By Paper Type Group" for "Adjustment Level", you can select the paper type and make effective adjustments according to the paper

type that you select from "Thin 1/Plain/Heavy 1-4", "Heavy 5", or "Heavy 6".

1) Press Settings/Registration > Adjustment/Maintenance > Adjust Image Quality > Auto Adjust Gradation.

2) Press "Adjustment Level" > select the adjustment level > press "OK".

[Caution] After changing the settings, make sure to perform the automatic gradation adjustment first, and then perform the color balance adjustment as the color

balance may become unstable.

1-106

When Using the Duplex Color Image Reader Unit-

11" x 17" or A3

Paper to use as a basis:

- Hammermill Color Copy Digital (28lb. (105 g/m2))*

- Thin 1, Plain 1, Plain 2 or Heavy 1 to Heavy 6/Uncoated that has the same whiteness of the Hammermill Color Copy Digital (28lb.

(105 g/m2)) and that is already registered as paper to adjust

- Custom paper type equivalent to the above basis weight/finish/whiteness and already registered as paper to adjust

Custom paper type to register to adjust:

- Custom paper type equivalent to the basis weight/finish/whiteness of paper to use as a basis

(Before loading custom paper type, you need to register the characteristics of custom paper type and register paper source in which you