Canon imagePROGRAF GP-4000 - Manual (Page 744)

The printer ejects blank, unprinted paper
Check 1 The leading edge of the roll paper may have been trimmed.
The leading edge of the roll paper may be trimmed if Trim edge first is not set to Off or Manual in the touch
screen menu.
Cutting the Leading Edge of Roll Paper Automatically
Check 2 Is the Print head nozzle blocked?
Print a nozzle check pattern to check the Print head status.
Checking for Nozzle Clogging
Check 3 Is the correct printer driver selected?
Print again using the correct printer driver for your printer.
If none of the above apply, there may be a printer malfunction.
Contact your Canon dealer for assistance.
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