RD-KT247 thermal printers
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printer shell, more particularly note protecting the printing head.
1. If the printer is not used for a long time, we do not turn on the printer power.
2. If the printer is not working properly, please turn off the printer's power.
3. Power supply must meet the requirements, or it is unfavorable for the printing head, and even
damages the printing head.
4. When replacing the paper roll, please note whether there are the paper scraps and dust on the
printing head. If having paper scraps and dust, please gently remove. Note the thermal paper's
obverse and reverse side, and if the reverse side is uncoated, the printer can‘t print out the
handwriting.
5. When the printer is printing or paper feeding, we can't tear the paper, and can't more reversely
drag the paper
6. Keep the printer control panel clean
7. When thermal printer prints unclearly, we can use the clean cotton ball soaked some alcohol to
gently wipe the surface dirt on the print head chip heating element.
8. When we connect the printer to the host, we should connect the printer data cable, and then
power on the printer.
9. To choose a good quality paper when we select the paper for the thermal printer can not only
improve the printing quality, but also reduce the abrasion for thermal film.
APPENDIX
A : printing character set
HEX
HEX
HEX
HEX
HEX
HEX
HEX
HEX
20
(
空格
)
21
!
22
“
23
#
24
$
25
%
26
&
27
‘
28
(
29
)
2A
*
2B
+
2C
,
2D
-
2E
.
2F
/
30
0
31
1
32
2
33
3
34
4
35
5
36
6
37
7
38
8
39
9
3A
:
3B
;
3C
<
3D
=
3E
>
3F
?
40
@
41
A
42
B
43
C
44
D
45
E
46
F
47
G
48
H
49
I
4A
J
4B
K
4C
L
4D
M
4E
N
4F
O
50
P
51
Q
52
R
53
S
54
T
55
U
56
V
57
W
58
X
59
Y
5A
Z
5B
[
5C
\
5D
]
5E
^
5F
_
60
`
61
a
62
b
63
c
64
c
65
e
66
f
67
g
68
h
69
i
6A
j
6B
k
6C
l
6D
m
6E
n
6F
o
70
p
71
q
72
r
73
s
74
t
75
u
76
v
77
w
78
x
79
y
7A
z
7B
{
7C
|
7D
}
7E
~
7F