Oki DP-5000 manual Printing is possible, but the foil ink is not trans- parent

6When coloured paper is used for full colour printing, the colours are not reproduced correctly.

Colour printing is based upon the ink being printed on a white background, so correct colours cannot be reproduced on coloured paper. DP printers, however, can provide the following forms of printing even on coloured paper.

a On light-coloured paper, DP printers pro- vide a white undercoat prior to colour print- ing. This allows colours to be reproduced in tones close to those obtained by printing on white paper.

b On dark-coloured paper, impressive finish- ing may be obtained by using monochrome printing with white ink.

Ink and paper

1How should I use white ink? White ink can be used as follows:

a As with foil ink, white ink is effective for spot colour printing on dark-coloured paper.

b White ink can provide an undercoat for full colour printing on light-coloured or coarse- surfaced paper. The white undercoat will

improve image quality and colour reproduc- tion.

2Can I print on overhead transparencies using foil cartridges?

Printing is possible, but the foil ink is not trans- parent.

3Can I use the Dye Sub Overcoat cartridge for Glossy finishing?

No. Always use the Finish II cartridge.

4Is it OK to print using the white ink on top of a full colour image?

This can cause unsatisfactory results. Print the white ink before using other ink colours.

5For full colour printing and glossy finishing, may I use any type of paper?

We suggest using High Grade Paper for full col- our printing. Using other types of paper can pro- duce a poor image. Using our VPhoto Primer will help make many plain papers suitable for full-col- our printing.

90 User’s Guide