(3) Preventing
Overheat
To prevent the motor from overheating, the maximum continuous drive time and drive ratio are limited.
Table 3-6 shows the Maximum Continuous Drive Time and Drive Ratio of the motor per print within 1m.
Follow Table 3-6 shown below to set drive time and a pause time of the motor.
Table 3-7 and Figure 3-8 show Drive Time and Paper Length at Temperature Rise of 50ºC and 75ºC.
Temperature rise of the motor is different according to the use conditions. (ambient temperature,
designing the outer case etc.) Keep the temperature of the motor outer case, 100
C or lower. Verify the
performance with your actual device.
Table 3-6 Maximum Continuous Drive Time and Drive Ratio
Motor Drive Voltage Vp (V)
8.0
7.5
6.5
5.5
Drive Pulse Rate
(pps)
Maximum
Continuous
Drive Time
(sec)
Drive Ratio
Drive Ratio
Drive Ratio
Drive Ratio
320
to
480
100
45%
50%
55%
60%
480
to
640
67
45%
50%
55%
60%
640
to
800
50
45%
50%
55%
60%
800
to
960
40
45%
50%
55%
60%
960
to
1120
33
45%
50%
55%
60%
1120
to
1280
29
45%
50%
55%
60%
1280
to
1440
25
45%
50%
55%
60%
1440
to
1600
22
45%
50%
55%
60%
1600
to
1760
20
45%
50%
55%
×
1760
to
1920
18
45%
50%
55%
×
1920
to
2080
17
45%
50%
55%
×
2080
to
2240
15
45%
50%
55%
×
2240
to
2400
14
45%
50%
×
×
2400
to
2560
13
45%
50%
×
×
2560
to
2720
13
45%
50%
×
×
2720
to
2880
12
45%
×
×
×
2880
to
2933
11
45%
×
×
×
×
: Unusable
( )
(%)
100
×
Time
Pause
+
Time
Drive
Time
Drive
=
%
Ratio
Drive
3-11
