IBM 4400 User Manual
276
Chapter
9
P-Series EVFU
Clearing the EVFU Memory
The following actions reset (clear) the EVFU memory:
•
Sending only the start load code.
•
Sending a start load code followed immediately by an end load code.
•
A second start load code is received, resulting in reinitialization of the
EVFU. (This allows the host data to be restarted.)
When the EVFU memory is cleared, the forms length returns to the previously
set value and the current print position becomes the top-of-form (TOF).
set value and the current print position becomes the top-of-form (TOF).
Table 78. P-Series EVFU Codes - PI Line Disabled or Not Used
ASCII
Data Bits
Channel
Hex
Dec.
Code
8
7
6
5
4
3
2
1
10
16
DLE
0
0
0
1
0
0
0
0
1 (TOF)
11
17
DC1
0
0
0
1
0
0
0
1
2
12
18
DC2
0
0
0
1
0
0
1
0
3
13
19
DC3
0
0
0
1
0
0
1
1
4
14
20
DC4
0
0
0
1
0
1
0
0
5
15
21
NAK
0
0
0
1
0
1
0
1
6
16
22
SYN
0
0
0
1
0
1
1
0
7
17
23
ETB
0
0
0
1
0
1
1
1
8
18
24
CAN
0
0
0
1
1
0
0
0
9
19
25
EM
0
0
0
1
1
0
0
1
10
1A
26
SUB
0
0
0
1
1
0
1
0
11
1B
27
ESC
0
0
0
1
1
0
1
1
12 (VT)
1C
28
FS
0
0
0
1
1
1
0
0
13
1D
29
GS
0
0
0
1
1
1
0
1
14
1E
30
RS
0
0
0
1
1
1
1
0
Start Load
1F
31
US
0
0
0
1
1
1
1
1
End Load
(X = Undefined, 0, or 1) (1 = High) (0 = Low)