WaxJet 6100, Service Reference Manual

Page: 12 / 131

Formulas
Firing frequency
, as it applies to a given application, is
determined with the following two formulas.
Using Shaft Encoder:
EDPI
W
LS FREQ





×
=
.
where:
EDPI= Encoder assembly base DPI rating
W=
WIDTH setting of FoxJet controller
LS= Line Speed (in inches/second; IPS)
Freq.= Firing pulses generated by belt movement (in cycles per
second: Hz) to Printhead (8 kHz maximum)
The formula for converting foot per minutes to inches per seconds is.
FPM ÷ 5 = IPS
Using Internal Oscillator :
35000 ÷ W = Freq.
Print DPI’s
are determined with the following formulas.
Using Internal Oscillator (35kHz):
( )
35000
÷ ÷ = W LS DPI
where:
DPI= Horizontal print resolution
W= WIDTH setting of FoxJet controller
LS= Line Speed (in inches/second; IPS)
Using Shaft Encoder Assembly:
EDPI W DPI
÷ =
where:
EDPI= Encoder assembly base DPI rating
W=
WIDTH setting of FoxJet controller
DPI= Horizontal print resolution
2-2 Application Design