Canon imagePRESS C800 imagePRESS C800 Series Operation Guide - Page 231

Problem, Solution, Automatic color mismatch correction, Print quality settings

Page 231 highlights

Problem Solving Problem Solution CMYK colors are not correctly aligned. Perform the automatic color mismatch procedure. Automatic color mismatch correction on page 239 (See ) Printed output has white gaps between color panes. Enable the trapping preset setting. Print quality settings on page 267 (See ) You can create new trapping presets. Create a trapping preset on page 240 (See ) An uneven density occurs. 1. Perform the professional Auto gradation adjustment procedure. 2. Perform the Shading correction procedure. About calibration on page 170 (See ) Gradation problem occurs: Automatic gradation adjustment shows strange results. Automatic gradation adjustment does not work. 1. Reset the Auto gradation adjustment calibration curves. 2. Perform the Auto gradation adjustment procedure. About calibration on page 170 (See ) Temperature or humidity Perform the standard or professional Auto gradation adjustment changes significantly in the procedure. print environment. About calibration on page 170 (See ) Uneven color planes occur. The Shading correction procedure assures consistent, even color planes on the output. About calibration on page 170 (See ) Slight color tone deviations If printer calibration and media family calibration cannot correct over time. the slight color deviations you can use the automatic correction color tone (ACCT) function. Correct the color tones with the ACCT function on page 248 (See ) When also the ACCT function cannot fix the color tone deviations, contact your local service representative. imagePRESS C800 Series Chapter 11 - Help 231

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Problem
Solution
CMYK colors are not cor-
rectly aligned.
Perform the automatic color mismatch procedure.
Automatic color mismatch correction
on page 239
(See )
Printed output has white
gaps between color panes.
Enable the trapping preset setting.
Print quality settings
on page 267
(See )
You can create new trapping presets.
Create a trapping preset
on page 240
(See )
An uneven density occurs.
1.
Perform the professional Auto gradation adjustment proce-
dure.
2.
Perform the Shading correction procedure.
About calibration
on page 170
(See )
Gradation problem occurs:
Automatic gradation ad-
justment shows strange re-
sults.
Automatic gradation ad-
justment does not work.
1.
Reset the Auto gradation adjustment calibration curves.
2.
Perform the Auto gradation adjustment procedure.
About calibration
on page 170
(See )
Temperature or humidity
changes significantly in the
print environment.
Perform the standard or professional Auto gradation adjustment
procedure.
About calibration
on page 170
(See )
Uneven color planes occur.
The Shading correction procedure assures consistent, even color
planes on the output.
About calibration
on page 170
(See )
Slight color tone deviations
over time.
If printer calibration and media family calibration cannot correct
the slight color deviations you can use the automatic correction
color tone (ACCT) function.
Correct the color tones with the ACCT function
on page 248
(See )
When also the ACCT function cannot fix the color tone deviations,
contact your local service representative.
Problem Solving
Chapter 11 - Help
231
imagePRESS C800 Series