Thermal Head Application Energy; Motor Drive - Citizen CBM-202PC-04 User Manual

5.1.2 Thermal Head Application Energy

This LSI automatically controls the energy applied to the thermal head according to a
temperature and Vp voltage.
With the function selection terminal, print density can be set to the following 4 kinds of
ranks listed in Fig. 5.3.
Fig. 5.3
Gate Array Pin-31
5.2

Motor Drive

There are the following features:
1) Prevents heat generation of the motor and restrains current consumption through PWM
control.
2) Controls acceleration at start time.
3) Capable of providing fine control according to a voltage(VH) applied to the motor to realize
optimum paper feed.
Table 5.1 lists the maximum drive speeds at major voltages.
Table 5.1
VH Voltage
5 V
6 V
7.2 V
Notes)
• The maximum drive speed may slightly differ depending on the actual processing
time or voltage detection accuracy.
• If the head drive time becomes longer than the 1-step time of the motor during
printing, the motor will be driven after the head. During printing, therefore, the
drive speed will be slowed down due to the head divided driving method.
• The drive speed at auto loading time is 1/4 of the maximum drive speed at each VH
voltage.
Gate Array Pin-36
LOW
LOW
HIGH
HIGH
Max. Drive Speed
300 pps
490 pps
800 pps
Print Density
LOW
HIGH Standard
LOW Slightly dark
HIGH
At Auto Loading
75 pps
122 pps
200 pps
34
CBM-202PC-04 User's Manual
Level
Light 0
1
2
Dark 3
Print Density
Rate
80 %
100 %
120 %
150 %
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