Printronix LQH-HWTM User Manual

Page 284

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284

Appendix C

Paper Motion Using the PI Line (Relative Line Slewing)

The binary slew commands can skip from 1 through 15 or 1 through 16 lines
on the form, depending on how the Slew Range configuration option is
configured. Refer to Table 24 which illustrates how lines are skipped for each
value. (Note that the state of data bit 5 is the difference between line slewing
and using the interface lines as EVFU channel codes.) This type of vertical
paper motion occurs whenever the line slewing command is used regardless
of whether the EVFU memory is loaded or not.

Table 24. Line Space Slewing

ASCII

Hex

7

6

5

4

3

2

1

1
1
1
1
1
1
1
1
1
1
1
1
1
1

X
X
X
X
X
X
X
X
X
X
X
X
X
X

X
X
X
X
X
X
X
X
X
X
X
X
X
X

1
1
1
1
1
1
1
1
1
1
1
1
1
1

0
0
0
0
0
0
0
0
1
1
1
1
1
1

0
0
0
0
1
1
1
1
0
0
0
0
1
1

0
0
1
1
0
0
1
1
0
0
1
1
0
0

0
1
0
1
0
1
0
1
0
1
0
1
0
1

1

2
3
4
5
6
7
8
9

10
11
12
13
14

Dec

X = Undefined, 0 or 1

1 = High

0 = Low

8*

1
1

1
1

1
1

1
1

1
1

0
1

15

Data Bits

Code

10
11
12

13
14
15
16
17
18

19
1A
1B
1C

1D
1E

16
17
18

19

20
21
22
23
24

25
26
27
28

29
30

DLE
DC1
DC2

DC3
DC4
NAK
SYN
ETB
CAN

EM
SUB
ESC
FS

GS
RS

1F

31

US

16

Slew Range

Configuration Value

0

1

1
2
3
4
5
6
7
8
9

10
11
12
13
14
15

1

X
X

X
X

Note

*The ASCII values in Table 24 assume that all undefined bits
are set to 0. When the PI line is enabled, data bit 8 is the PI
line on a serial interface, and data bit 8 is undefined on a
parallel interface.

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