hi,
excel just sends the data. custom paper type is handled by
the printer or just put into different feeder trays. excel
will display default printer info.
goto edit>page setup>option button>paper tab.
here you may be able to select any custom paper from a
special tray in the printer. i can't say about an epson LQ-
570e because i have no experiance with this model. but we
do have to sometimes select special paper to print on like
paper with company logo or colored paper ect. we have H/Ps.
