#Color DeskJet Printing
09-Feb-92 13:45:51
Sb: #48713-#Color DeskJet Printing
Fm: John Pendergrass 76246,676
To: ROGER A. BRUCE 74206,3303
Well, color printing being three times as slow as black would make sense,
actually. Example: say you have a PgS page that is supposed to be all
black text. If you use the black ink cartridge and driver, it only
requires one pass of the printhead for each line. If you use the color
cartridge/driver, it requires -3- passes of the printhead to print the
'black'. At least three times as slow, probably more.
The way the color cartridge makes 'black' is to overprint all three colors.
This results in a dark dark green, rather than BLACK too.
I suppose it depends on what type of color you are using? If you are just
using spot color (either color hilighting on borders, adding a color
bitmap, a color headline, etc) and the rest is black, then I'd suggest
doing the multi-pass. Create two pages; one with all the pure black stuff,
and print that. Then the color stuff, and overprint. So long as the
registration can be a few dots off (that's REAL small) I've found that to
work like a champ. Worth a shot anyway.
–jp–seattle–