Primera Pictura 310s User Manual page 53

32 bit QuickDraw
Selecting this option increases the maximum
number of colors the printer driver can print from
256 to 16.7 million and, in most cases, should
always be selected.
Mirrored
When the Mirrored box is checked, the printer
driver will print the image in a reversed format,
making the printed image appear as if you were
viewing it in a mirror. This is useful when printing
images for heat transfers.
Perfed Paper
Select this option only if printing onto A-Long or
A4-Long wax thermal transfer paper or
transparency film with perfed extensions.
Print within margins
Most color printers cannot print over the entire
piece of paper. There is often a non-printable
margin that the printer mechanism physically
cannot reach. Some applications do not take this
non-printable margin into account when printing
the document. The top left corner of the document
on screen is positioned at the top left corner of the
paper when printed. Selecting the Print within
margins option in such applications forces the
document to print at the top left corner of the
printable area. Normally, you should not have to
choose this option, since the application usually
adds its margins to the non-printable margin of the
printer.
Better bitmap scaling
When selected, this option reduces the distortion
that can be seen sometimes in bitmaps and bit-
mapped fonts when printed on a high-resolution
printer. Bit mapped images are often stored and
printed at screen resolution, 72 dots per inch (dpi).
When a 72-dpi bitmap is printed on a high-
resolution printer, the number of dots in the image
must be increased. Each dot on the printer is
smaller than a pixel on the screen; therefore, dots
must be added to maintain the overall size.
The Color Sign Printer has a resolution of 300 dpi,
so for every dot in the original bitmap, the driver
theoretically has to put 4.2 dots across and down
the page. Of course, the printer cannot put
fractions of a dot on the paper. The driver therefore
increases the number of dots by four, or sometimes
by five, to even out the fractions.
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