Canon imagePROGRAF GP-4000 - Manual (Page 955)

4905
Cause
A printer error has occurred.
What to Do
Turn off the power, wait a moment, and then turn it back on.
If the error appears again, make a note of the detailed error code (ECxx-xxxx) that appears on the touch
screen, and then turn off the power and contact a Canon customer service center.
Detailed error codes
EC51-3304 EC51-3306 EC51-3307 EC51-3308 EC51-3309 EC51-330A
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