Operation Manual

English
7-26 Chapter 7
3 Has an ink cartridge for a different printer been installed?
Cartridges made by other manufacturers will not work. Use only OKI
recommended cartridges.
Printing Quality, Hue, and Resolution queries
1
Can all four colours of the colour inks be combined for black and
white printing?
In colour printing mode, greyscale portions are printed using a four-
colour greyscale. Black characters are also printed using a mixture of
the four colours, if brightness is adjusted. To print monochrome
portions in black only, adjust the brightness to 0%. To subject the
overall image to monochrome printing, set the Type Settings to
Black
& White.
2 Black is printed with black ink, but grey portions are printed using
four colours.
In colour printing, greyscale intermediate colours (such as grey) are
printed using four colours. If you want to print only in black ink, set the
Type setting in the Print dialogue box to Greyscale.
3 I would like to adjust the image quality of photographs without
reducing character resolution.
Characters always print at the currently selected resolution (if an
outline font is used). The image quality of photographs can be adjusted
independently using the
Halftone setting in the Image Setting dialogue
box.
4 There seems to be no difference between photographic output
using monochrome printing set to
Fine
and images obtained by
monochrome printing set to
Standard
.
With monochrome printing set to Fine, only the characters can be
printed at
Fine. This is done by smoothing the Standard images. The
quality of photographs, however, differs little from that of images
obtained by monochrome printing set to Standard.
5 When plain or other coarse-surfaced paper is printed in colour, ink
is missing from a number of points on the image.
When paper with a coarse surface is used for full colour printing, ink
will be missing from certain points where it was difficult to deposit. To
correct this, you can attempt the following: