Oce ColorWave 600, User Manual

Page: 268 / 324

268 Chapter 7 Print quality and Print productivity
Banding across the print with differences in color and gloss
Check, analyze and solve output quality
problems of print jobs
Banding across the print with differences in color and gloss
Description of the problem
Your print contains a banding across the media with a difference in color and gloss.
The intensity of the banding can vary from left to right or vice versa. Banding mostly
occurs in the Production mode.
You can perform an additional check to identify the problem. Simply measure the
width of the banding. Each print mode has a typical banding width. The following
table describes the connection between the print modes and the banding widths.
[114]
Cause of the problem
■
The paper steps are not optimal.
■
There are time differences at the turning point of the carriage unit.
At one side, the time between 2 swaths is short (short turn). At the other side, the
crystallisation time between 2 swaths is long (long turn). Differences in the
crystallisation time of the toner can cause the banding patterns.
Illustration
[287]
[287] Example of banding across the print
[114] The connection between the print modes and the width of the banding
Print mode Typical width of the banding
Economy mode 42 mm
Production mode 21 mm
Presentation mode 17 mm