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Vertical Format Units5–6
Relative Line Slewing
Another
method of moving paper using the PI line results in vertical slews of a specified number of
lines
within the form relative to the current print line (rather than slewing to a specific line). For this
to
occur, three criteria must be met:
• The PI line must be enabled and set high;
• Data bit 5 must be 1 (set); and
•
The EVFU must be the selected V
ertical Format Unit.
The
Slew Relative configuration and the status of data bits 1–4 determine the number of lines slewed as
described
in T
able 5–3. (Note that the state of data bit 5 is the dif
ference between line slewing and us
-
ing
the
interface lines as EVFU channel codes.) As long as the EVFU is selected, this type of vertical
paper motion will occur, regardless of whether the EVFU memory is loaded or not.
If the Double High for One Line attribute is active, n
+ 1 lines are slewed rather than
n lines.
Table 5–3. P–Series EVFU Line Slewing
ASCII
Lines Slewed
Hex PI 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
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
1
0
0
0
0
1
1
1
1
1
1
1
1
0
1
15
X
X
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