Apple LaserWriter 12/640 PS - Manual (Page 322)

Problems with printed documents
This section provides remedies for problems in the appearance of a printed
document.
The quality of grayscale art could be better.
Turn on the PhotoGrade feature, as described in Chapter 6 for Mac OS users
and Chapters 7 and 8 for Windows users. Also, try turning off the FinePrint
feature.
Note: You’ll need at least 12 MB memory to use PhotoGrade.
Paper curls when you print on it.
Use only 16- to 24-pound laser-quality or photocopy bond paper for automatic
feed and 16- to 32-pound paper for manual-feed printing. If you are using the
correct weight and the paper still curls, try using a different brand of paper.
Toner does not stay fixed on the paper.
If the toner does not stick to the paper, try using different paper. Best results
are obtained with laser-quality or photocopy bond paper.
The printer prints on only part of the paper, printing is off-center, or images are out
of place.
Make sure that you have selected the appropriate paper source, paper size,
and orientation in your printing software. (On a Mac OS computer, click the
Page Image icon in the Page Setup dialog box; if you want to narrow the
margins to print on more of the page, you can select Larger Print Area in the
Options portion of the Page Setup dialog box.)
Check the paper width guide in the cassette. If the width guide is set too
wide, the paper may be fed into the printer at an angle.
Also check that the margins set in your document are correct, that you are not
using a type of paper that is causing a feeding problem, and that the paper
cassette isn’t too full.
297 Fixing Paper and Image Problems