Canon imagePRESS C7011VPS series, Operation Manual

Page: 360 / 391

Problem Solving
Problems occur due to a print system or a job handling problem.
Below you can find an overview of solutions for problems that can occur.
Problem Solution
Similar colors for text and color
panes in the source document
are different on the printed out-
put. Perform a media calibration for all halftones.
(See
Calibrate a media family on page 356 )
Similar colors in the source
document are different on dif-
ferent media. When the different media are in two media families, calibrate
both media families.
(See
Calibrate a media family on page 356 )
CMYK colors are not correctly
aligned. Perform the automatic color mismatch procedure.
(See
Auto color mismatch correction on page 343
)
Printed output has white gaps
between color panes. Perform the automatic color mismatch procedure
(See
Auto color mismatch correction on page 343
)
When the automatic color mismatch procedure does not
solve the problem, enable the trapping preset setting.
You can create new trapping presets.
(see
Description of the print job settings on page 157
Opera-
tion guide - trapping)
An uneven density occurs. 1. Perform the Shading correction procedure.
2. Perform the Auto gradation adjustment procedure.
(See
About calibration on page 353
)
Gradation problem occurs. 1. Reset the Auto gradation adjustment calibration curves.
2. Perform the Auto gradation adjustment procedure.
(See
About calibration on page 353
)
Uneven color planes occur. The Shading correction procedure assures consistent, even
color planes on the output.
(See
About calibration on page 353 )
Problem Solving
360 Chapter 14 - Maintenance and print quality