Canon imagePROGRAF GP-4000 - Manual (Page 458)

When Repairing, Lending, or Disposing of the Printer
If you have entered personal data, passwords and/or other security settings on the printer, such information
may be stored in the printer.
When sending the printer for repair, lending or transferring the printer to another person, or disposing of the
printer, please be sure to follow the steps below in order to delete such information and prevent third parties
from accessing it.
Initializing Printer's Setting
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