Canon LBP-5100 User Manual page 406

Images in which two or more colors are overlaid come out faint.
Cause 1 Paper is inappropriate.
Remedy Replace the paper with one that can be used with this printer. (See "Paper
Requirements," on p. 3-2)
Cause 2 The printer is being used in a high-humidity environment.
Remedy Set [Special Print Mode] to [Special Settings 1] in the printer driver.
In order to specify the setting for [Special Print Mode], display the [Advanced
Settings] dialog box by clicking [Finishing Details] in the [Finishing] sheet, and
then clicking [Advanced Settings] in the [Finishing Details] dialog box.
IMPORTANT
Normally, use the printer with [Special Print Mode] set to [Off]. Set [Special Print Mode] to
[Special Settings 1] only when this problem occurs.
Thin lines or halftone areas come out faint.
Cause 1 Paper is inappropriate.
Remedy Replace the paper with one that can be used with this printer. (See "Paper
Requirements," on p. 3-2)
Cause 2 The printer is being used in a high-humidity environment.
Remedy Set [Special Print Mode] to [Special Settings 2] in the printer driver.
In order to specify the setting for [Special Print Mode], display the [Advanced
Settings] dialog box by clicking [Finishing Details] in the [Finishing] sheet, and
then clicking [Advanced Settings] in the [Finishing Details] dialog box.
IMPORTANT
Normally, use the printer with [Special Print Mode] set to [Off]. Set [Special Print Mode] to
[Special Settings 2] only when this problem occurs.
When printing is performed with [Paper Type] in the [Paper Source] sheet set to [Heavy
Paper 2], toner gets on the non-printed areas.
Cause Depending on the printer status, toner may get on the non-printed areas.
Remedy Set [Special Print Mode] to [Special Settings 6] in the printer driver.
In order to specify the setting for [Special Print Mode], display the [Advanced
Settings] dialog box by clicking [Finishing Details] in the [Finishing] sheet, and
then clicking [Advanced Settings] in the [Finishing Details] dialog box.
Print Quality Problems
7
7-29