User`s manual

B–6 Printer Specifications
Print Rates
The printing speed of text is a function of the selected font and dot density,
and is measured in lines per minute (LPM). Print speed is independent of the
number of characters configured in the character set. Text containing
attributes such as bold or emphasized printing, superscripts, subscripts, or
elongated attributes cause print rates to decrease to not less than half the rates
of the font without such attributes. Table B–1 provides typical printing rates.
The plotting speed of graphics is measured in inches per minute (ipm), and is
calculated as follows:
Shuttle Speed x Vertical Density
60,000 Plotting speed in=
1
x
inches/minute
Shuttle speed varies with the horizontal dot density:
Horizontal Density
(milliseconds/stroke)
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
13.5
14.5
15.6
18.75
20.8
50
60
70
80
90
100
110
120
130
140
150
180
200
(dots/inch)
Selectable
by
graphics
control
codes
Shuttle Speed (LG06)
(milliseconds/stroke)
Shuttle Speed (LG12)
6.25
6.25
6.25
6.25
6.25
6.25
6.25
6.25
6.75
7.25
7.8
9.375
10.4
NOTES:
1. The theoretical plot speed will be reduced in half if there are adjacent
dots in a dot row (as in the case of RASTER plot in the LG06/LG12).
This limitation is due to the hammer fire cycle time.
2. The theoretical plot speed will be further reduced in half if the number
of non–adjacent dots in a row exceeds 86% of the maximum number of
non–adjacent dots for a given horizontal print resolution (this limitation
is due to power consumption requirement).