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Graphics4-6
In
Normal Density Plot
:
D
The mode is selected with the odd dot plot control code ENQ (05 hex).
D The
odd-numbered dot columns are addressed to produce a horizontal and
vertical
density
that varies, based on the mode of operation:
Data Processing (DP)
Correspondence (NLQ)
High Speed A (HS)
High Speed B (HSB)
High Speed C (HSC)
Horizontal dpi Vertical dpi
60
90
60
60
60
72
96
48
72
72
Print Mode
D
Different print modes cannot be mixed on the same dot row.
Figure 4-5 illustrates normal density dot plot.
Figure 4-5. Normal Density Plot
In
Double Density Plot:
D Two separate shuttle strokes produce double density plot. First the even plot comĆ
mand
(EOT
, 04 hex) and
dot data are sent, followed by the odd plot command (ENQ,
05
hex) and dot data, allowing a maximum of 1584 dots in a single dot row at 60 dpi.
D Even dot plot is sent first for control of the initial plot pattern; then odd dot plot is
sent
for control of the final dot pattern.
D
The dots average .017" in diameter.
D
The vertical density remains the same in normal and high density plotting.
Figure 4-6 illustrates double density plotting.
Figure 4-6. Double Density Plot