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Chapter 1. Getting Started
Setting Up the Printhead
1 - 8
Positioning Multiple Printheads
Position multiple printheads as closely together as possible. The most
downstream printhead (the last printhead to print) must finish printing
before the next substrate passes under the cue sensor. (See the section
"Determining Cue Distance and Cue Delay" in this chapter.)
The following dimensions need to be considered:
•
Feedstroke - the substrate length plus the distance between
substrates
•
Cue distance - the distance between the cue sensor and the print
array of each printhead
•
Image length - the length of the image being printed.
For proper positioning, feedstroke must be equal to or greater than
the cue distance for each printhead plus the image length.
You can further verify accurate printhead positioning by ensuring that the
distance between substrates is equal to or greater than the cue distance
for the most downstream printhead.
Figure 1.7 diagrams the positioning dimensions.
Figure 1.7
Multiple printhead dimensions
Distance between substrates
Feedstroke
Image
Cue
length
distance
Substrate direction
Cue
sensor
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