Canon imagePROGRAF GP-4000 - Manual (Page 407)

Cleaning the Print Heads
The print head cleaning function allows you to clear up clogged print head nozzle. Perform print head
cleaning if printing is faint or a specific color fails to print, even though there is enough ink.
The procedure for print head cleaning is as follows:
Print Head Cleaning
1. Open the printer driver setup window 1.
2. Click Print Head Cleaning on the Utility tab 2.
When the Print Head Cleaning dialog box opens, select the head cleaning to be performed from the
following:
Cleaning
Perform Cleaning if printing is faint or a specific color fails to print, even though there is enough
ink.
System Cleaning
System Cleaning is a more powerful cleaning function. Perform System Cleaning if there is no
improvement even after repeating Cleaning several times.
Important
• System Cleaning consumes an extremely large amount of ink.
Executing system cleaning frequently will rapidly deplete your printer's ink supply. Therefore,
execute system cleaning only when necessary.
3. Execute cleaning 3.
Make sure that the printer is on and then click OK .
Print head cleaning starts.
Note
• After Cleaning or System Cleaning is complete, perform Print Nozzle Check Pattern and check the
cleaning results.
Related Topic
Printing a Nozzle Check Pattern
407