Shading Correction - Canon imagePRESS C800 Series Operator's Maintenance Manual

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Initial Setup > Adjustments/Settings > Adjustment/Maintenance Menu screen > Shading Correction

■ Shading Correction

This mode enables you to correct the slightly uneven densities that occur in the halftone
density area of a printed image.
The following three types of shading correction can be made:
• Densitometer Correction
This mode enables you to correct uneven densities by gauging the output results of the test
page using a densitometer, and entering the displayed values for density adjustment.
• Visual Correction
This mode enables you to correct uneven densities by viewing the output results of the test
page and adjusting the density manually. Select this mode to correct uneven densities if
the densitometer is unavailable or the densitometer correction is unsatisfactory. Note that
sufficient experience in detecting slightly uneven densities is required to manually adjust
the density.
NOTE:
13" x 19", 12 5/8" x 17 16/11", 12" x 18", 11" x 17", or LTR plain paper can be used for
test pages. Make sure that a sufficient supply of paper is loaded in the paper source
before starting this procedure.
NOTE:
Other than the foregoing methods, shading correction can be performed by receiving
data from the print server when installing the optional imagePRESS Server.
For details, refer to the manual that comes with imagePRESS Server.
1 Initial Setup > Adjustments/Settings > Adjustment/Maintenance Menu screen > Shading Correction
● Densitometer Correction
1) In Adjustment/Maintenance menu screen, press [Correct Shading].
-> Shading correction screen is displayed.
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