Canon imagePRESS C800 Series Operator's Maintenance Manual page 27

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Initial Setup > Adjustments/Settings > Adjustment/Maintenance Menu screen > Automatic Gradation Adjustment
● Registering Paper for Calibration
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.
CAUTION:
• Make sure to register paper to adjust in the stable room environment (i.e.
temperature and humidity).
• If the rapid changes in room environment occur after the registration of paper to
adjust, accurate recalibrations of the gradation, density, and color settings of the
machine cannot be made for paper already registered to adjust. In this case, register
again that paper to adjust.
• Make sure to register paper whose finish and whiteness are equivalent to the
Hammermill Color Copy Digital (28lb. (105 g/m
recalibrations of the gradation, density, and color settings of the machine may not be
made if you register and use paper other than that condition as paper to adjust.
• To perform the procedure described in this section, you must log in to this machine
as an administrator.
• 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.
- When Using the Duplex Color Image Reader Unit-H1 : [Use Scanner]
- When Using the Auto Gradation Sensor-A1 : [Do Not Use Scanner]
1 Initial Setup > Adjustments/Settings > Adjustment/Maintenance Menu screen > Automatic Gradation Adjustment
2
)) as paper to adjust. Accurate
CAUTION:
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.
Item When Using the Duplex Color
Image Reader Unit-H1
Size • A3
• 11" × 17"
Basis Weight/Finish/ Paper to use as a basis:
Whiteness • Hammermill Color Copy Digital (28lb. (105 g/m
• 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
* The name of the paper is subject to change without notice. For more information,
contact with service technician.
NOTE:
While you are registering the custom paper type as a paper to adjust, the paper type
settings are protected and you cannot change the detailed information for custom
type or delete the custom type in [Paper Type Management Settings] in [Preferences]
(Settings/Registration).
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When Using the Auto Gradation
Sensor-A1
• A3
• 11" × 17"
• 12 5/8" x 17 11/16"
• 12" x 18"
• 13" x 19"
2 ))*
T-1-17
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