Canon Satera LBP7700C User Manual page 61

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 Before printing
Specify the following settings.

Before printing from the printer driver for Windows or Macintosh
Specify the paper size and paper type in the printer driver before printing.

Before printing from the BMLinkS printer driver
See "User's Manual" for the BMLinkS printer driver.

Before printing from DOS, UNIX, or other operating systems
Specify [ ] and [ ].