Lexmark 3455 - Manual (Page 38)

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4.3.12 IPDS Resolution
This option defines the resolution used when printing IPDS jobs. This is a separate
setting from the printer's Print Resolution under the Quality Menu.
This option sets the working print resolution for the IPDS jobs. This alters the quality
of text with scalable fonts, barcodes, graphics, and scalable images. Bitmap fonts and
non-scalable images are not affected.
600 dpi* Print at 600 pel resolution
1200 dpi Print at 1200 pel resolution
300 dpi Print at 300 pel resolution
Note: The 3812/16 emulation does not support the printer IPDS Resolution
setting of 300 dpi. If 3812/16 emulation is selected and the printer IPDS
Resolution setting is 300 dpi, the printer IPDS emulation ignores the 300
dpi setting and uses 600 dpi. This means, that the 240 dpi data received
from the host is converted to the printer's working resolution of 600 dpi.
Some jobs may not print in the standard 4MB of installed printer memory. The 300 dpi
resolution uses the least amount of memory. Switch to this resolution if your job will
not print in the memory installed in the printer or add additional memory. Refer to
appendix C. Recommended memory on page 171 for minimum total recommended
memory for each resolution setting. Additional memory above the total recommended
may be required for printing complex pages. Additional memory may also increase
print speed.