EC Line EC-PM-80320 - Print Position of Data; Electric Character of Thermal Print Head

EC-PM-80320 Service Manual
- 9 -
4.1.3 Print position of data
The 384 dots from 1 to 384 are transmitted through DATA IN1, and the 256 dots from385 to 640 are
transmitted through DATA IN2.The print position of all data dots are shown as follows:
4.1.4 Electric Character of Thermal Print Head
（Ta=25±10℃）
Rating
Items Symbol Condition
Least Standard Most
Unit
Resistance RH 630.5 650 669.5 Ω
Drive Voltage Vp 21.6 24.0 26.4 V
Drive Electricity Ip
Most drive dots are
352dots at one time.
-- 13.0 14.8 A
logical Voltage Vdd 4.75 5.00
.
5.25 V
Logical Electricity Idd
FCLK=8MHz,
fDI=1/2fCLK
-- -- 64 mA
High VIH CLK, DAT, LATCH, DST 0.8*Vdd -- Vdd V
Input Voltage
low VIL CLK, DAT, LATCH, DST 0 -- 02*Vdd V
High IIH DAT VIH=5V -- -- 0.5 uA
DAT Input
Electricity
low IIL DAT VIL=0V -- -- -0.5 uA
High IIH DST -- -- 120 uA
DST Input
Electricity
low IIL DST -- -- -2.0 uA
High IIH CLK -- -- 2.0 uA
CLK Input
Electricity
low IIL CLK -- -- -2.0 uA
High IIH LAT -- -- 2.0 uA
LATCH Input
Electricity
low IIL LAT -- -- -2.0 uA
High VDOH
Opening estate,
Vdd=4.5V
4.45 -- -- V
DAT Output
Voltage
low VDOL -- -- 0.05 uA
Figure 4-4 Print position of all data dots
Paper
DATA IN2 Data Input Arrange 385 386 …...639 640
Prin
t
Su
rf
ace
Paper in Direction
Th
e
o
r
de
r
o
f
p
rin
t
data
Data in
DATA IN1 D
ata
In
put
Arr
a
n
ge
12……
383
38
4
MP-
80
T Prin
te
r M
ec
h
a
ni
s
m
12
3
4
56
……………………………
638
639
6
4
0