6
Chapter 1 Getting Started
1-3 Important Notes on Printing
When Performing Pullback Printing
What is Pullback Printing?
Pullback printing refers to a printing method in which the white-ink (or metallic silver ink) undercoat is printed
first, and then CMYK color is printed on top of white ink (or vice versa); in the process, the already printed
media is pulled back to the original position once, and then overprinting is performed.
Allow the ink to dry thoroughly.
Dry the ink sufficiently before you perform pullback printing with the next color. Performing pullback
printing before the ink has dried enough may make attractive printing impossible or cause problems such
as reduced weatherability.
Drying time differs according to various conditions, but as a general guide you should use an auxiliary
drying unit (DU-540) and also allow the media to stand for an additional 15 minutes.
In particular, when you're pullback printing a white or metallic silver undercoat with CMYK inks, allow the
undercoat to dry thoroughly before you overprint it. If the undercoat is not dry enough, differences in
dryness may cause variations in the overprinted CMYK colors.
Using the middle pinch rollers
The middle pinch rollers may smudge the printed surface when the media is pulled back. When you per-
form pullback printing, we recommend securing the media in place using only two pinch rollers (one on
the left and one on the right).
Never use the media take-up system
Performing pullback printing requires pulling the media back, and so the take-up unit cannot be used.
When Using Transparent Media
Loading transparent media
Set the [EDGE DETECTION] menu item to "DISABLE". Transparent media cannot be loaded unless this set-
ting is made.
Ensure a margin of at least 75 mm from the leading edge of the media to the printing- or cutting-start
location.
Important notes on the amount of media remaining
When you use transparent media, the presence of media cannot be detected. In such cases, printing opera-
tion does not stop when the media runs out, and there is a chance that the platen or the like may become
soiled by ink or that ink may get inside and damage the machine.
If media runs out while printing is in progress, immediately press
to quit printing.
Chapter 1 Getting Started