Canon imagePROGRAF GP-4000 - Manual (Page 379)

Cleaning the Print Head
If printing is faint, cleaning the print head may improve results.
Choose one of three print head cleaning modes ( Cleaning , Deep Cleaning , or System Cleaning ),
depending on the problem to resolve.
• Cleaning •
Use this mode if printing is faint or contains foreign substances. This method of cleaning consumes the
least amount of ink.
It takes about 2 to 3 minutes.
• Deep Cleaning •
Use this mode if no ink is ejected at all or if Cleaning does not solve the problem.
It takes about 2 to 3 minutes.
• System Cleaning •
Use this mode if printing is not improved after Deep Cleaning . System Cleaning consumes a very
large amount of ink. Performing this frequently consumes the ink faster. Perform this only when needed.
It takes about 4 to 5 minutes.
Important
• Do not remove the maintenance cartridge or ink tanks during Cleaning , Deep Cleaning , or System •
Cleaning .
Ink may leak or an error may occur.
• If printing is not improved after System Cleaning , the print head may be at the end of its service life.
Contact your Canon dealer for assistance.
Note
• Check the nozzle check pattern and select an ink group for which to perform cleaning as needed. You •
can clean all print head or select the pattern below to clean the print head with a clogged nozzle.
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