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Hexadecimal dump
This feature is useful for programmerswho are debuggingprinting pro-
grams and want to see the actual codes the printer is receiving. (Some
computemchangethe codesthe programmerintended.)
Inthismode,alldatareceivedwillbeprintedin ahexadecimaldumpformat,
ratherthan the controlcodesbeing actedon as commandcodes.
This mode is accessedwith the followingprocedure:
1. While holding both
the(PAPER FEED)and(
SEJAE~~CT
)buttons down,
turn power ON. A beep tone will be heard.
2. Beginprinting.In place of the usual printoutyou will get a formatted
dumpshowingexactlywhatdatatheprinterreceives.Eachlinepresents
sixteencharacters,theirhexadecimal c odestotheleft andprintablechar-
actersprintedon the right.
3. At the end of the hexadecimaldump, set the printer off-line with the
( ON
LINE
)
button.This is necessaryto print the last line.
The followingBASICprogramis a simpletest you can run in hexadecimal
mode:
10 LPRINT WIDTH "LPT1 : " .255
20
FOR 1=0 TO 255
30 LPRINT CHR$(I) ;
40
NEXT I
50 LPRINT
60 END
If your system passes the codes directlyto the printer without changing
them, you will get a printoutlike Figure2-5.
00
01
02
03
04
05
06
07
08
09
OA 06
OC OD OE OF
. . . . . . . . . . . . . . . .
10
11
12
13
14
15
16
17
18
19
1A
16
IC
ID
1 E 1 F
20
21
22
23
24
25
26
27
28
29
2A 2B
2C 2D
2E
2F
! " #$%&: i ) ~+ ; -. /
30
31
32
33
34
35
36
37
38
39
3A 3B
3C 3D
3E
3F
0123456789
: ; <=>?
40
41
42
43
44
45
46
47
48
49
4A 46, 4C
4D 4E
4F
@ABCDE FGH I JKLMNO
50
51
52
53
54
55
56
57
58
59
5A 56
5C 50
5E
SF
PQRSTUVWXYZ [\]
'-
60
61
62
63
64
65
66
67
68
69
6A
66
6C
6D 6E
6F
' abcdefghi
jkl
mno
70
71
72
73
74
75
76
77
78
79
7A
7B 7C 70
7E
7F
pqrstuvwxyz
( ! ) -.
60
81
82
83
84
85
86
87
88
89
8A 8B
8C 8D 8E
8F
. .
90
91
92
93
94
95
96
97
98
99
9A
9B 9C
90
9E
9F
. .
.
. . . .
.
.
.
AO Al
AZ A3
A4 A5 A6
A7
A8 A9
AA AB AC AO AE AF
.
BO 81
R2 63
64
B5 B6
B7
B8 B9
6A t3B BC BD 8E
BF
. .
.
. . .
.
. . . . .
CO Cl
C2 C3
C4 C5 C6
C7
C8 C9
CA CB CC CO CE CF
. . . . . .
. .
. . . . .
DO D1 D2 03
04
05
D6 D7
D8
D9 DA OB DC DD DE DF
. . . . . . . . . . . . . . . .
EO El
E2
E3
E4
E5
E6
E7
E8
E9
EA EB EC EO EE EF
.
. . . . . . . . . . .
. .
FO F1
F2
F3
F4
F5
F6
F7
F8
F9
FA FB FC FD FE FF
.
.
. . . .
.
OD OA
Figure 2-5. Sample hexadecimal dump
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