Canon Color imageRUNNER LBP5975 User Manual page 492

The printing position is skewed slightly depending on the color to be printed.
Cause Although laser printers are manufactured with technology of high
precision, a phenomenon of "Out-of-Register Colors" may be slightly
conspicuous depending on the print image. Please note that this is due to
the structure of laser printers, but not due to printer malfunction.
Remedy 1 Adjust the phenomenon of "Out-of-Register Colors" in CALIBRATION (See p.
5-106) in the UTILITY menu.
Remedy 2 If [Gray Compensation] in the printer driver is set to [Off], poor print quality (a
phenomenon of "Out-of-Register Colors") may be alleviated.
In order to specify the setting for [Gray Compensation], display the following
dialog box.
- For the UFR II printer driver: Display the [Advanced Settings] dialog box by
clicking [Details] in the [Quality] sheet, then clicking [Advanced Settings] in the
[Detailed Settings] dialog box.
- For PCL Printer Driver: See Help of the PCL printer driver.
Gradation in the black or gray parts of the image does not appear smooth (the color
changes stand out).
Cause Data in black or gray was printed with the setting for RGB PURE BLACK
enabled.
Remedy Set RGB PURE BLACK (See p. 5-98) in the PS options to OFF.
Also, you can specify the same setting in the PS printer driver. For more details,
see Help of the PS printer driver.
IMPORTANT
When printing is performed with the setting for RGB PURE BLACK set to OFF, data in
black or gray is printed with 4-color toner of CMYK. Therefore, the data may be printed in
color, even if all the pages are in black and white.
Gray data appears grainy.
Cause Data in black or gray was printed with the settings for RGB PURE BLACK
and OUTPUT PROFILE enabled.
Remedy Set RGB PURE BLACK (See p. 5-98) to OFF, then set OUTPUT PROFILE (See
p. 5-97) to NORMAL in the PS options.
IMPORTANT
When printing is performed with the setting for RGB PURE BLACK set to OFF, data in
black or gray is printed with 4-color toner of CMYK. Therefore, the data may be printed in
color, even if all the pages are in black and white.
When You Cannot Obtain Appropriate Printout Results
7
7-79