Canon imagePROGRAF GP-4000 - Manual (Page 645)

Utility Tab Description
The Utility tab allows you to perform printer maintenance or check the settings of the printer.
Print Nozzle Check Pattern
Prints a nozzle check pattern.
Perform this function if printing becomes faint or a specific color fails to print. Print a nozzle check
pattern, and check whether the print head is working properly.
If the print result for a specific color is fainted, or if there are any unprinted sections, use
Print Head
Cleaning to clean the print head.
Paper Source
Displayed using the Media Type , Page Size and Roll Paper Width for each currently set paper
feed position.
Print Head Cleaning
Performs print head cleaning.
Print head cleaning removes any blockage in the print head nozzles.
Perform cleaning when printing becomes faint, or a specific color fails to print, even though all ink levels
are sufficiently high.
There are two head cleaning functions, which are described below.
Cleaning
Perform cleaning when printing becomes faint, or a specific color fails to print, even though all ink
levels are sufficiently high.
System Cleaning
System Cleaning is a more powerful cleaning function. Execute this function if the condition does
not improve even after you repeat Cleaning several times.
645