Canon BJC-3000 - Manual (Page 228)

228 Troubleshooting - Printout is Unsatisfactory
Characters and figures notched /
gradation streaked or unnatural
Characters and figures print with unnatural notches.
Gradation appears streaked.
Check Are you using the application program that only supports PostScript?
The BJC-3000 is a QuickDraw printer and is not a PostScript printer.
Therefore, if you use the application program that only supports PostScript,
the lines of characters and figures may print with unnatural notches.
Always use the application program that supports QuickDraw.
Some PostScript application programs have a setting that allows you to use
ATM fonts or TrueType fonts. When you specify the ATM fonts or TrueType
fonts in the application program, characters, figures and gradation can be
reproduced properly.
Macintosh