3-15
3.5.3 Head Voltage
The printer has a built-in head driver IC.
Table 3-7
shows the head voltage.
Table 3-7 Head Voltage
Item
Voltage Range
Head drive voltage
Vp
4.5 to 8.5 V
Head logic voltage
Vdd
2.7 to 5.25 V
3.5.4 Peak
Current
Since the peak current (maximum current) may reach the values calculated using equation (3) shown
below when the thermal head is driven, make sure that the allowable current for the cable material and
the voltage drop on the cables are well within the specified range.
Equation (3):
Ip:
Peak current (A)
N:
Number of dots that are driven simultaneously
Vp:
Head drive voltage (V)
RH:
Head resistance (
Ω
)
N
×
Vp
×
RH
Ip=
(RH+16+0.05
×
N)
2
Содержание LTPA245 Series
Страница 1: ...LTPA245 SERIES LINE THERMAL PRINTER MECHANISM TECHNICAL REFERENCE U00060425801 ...
Страница 59: ...7 4 Figure 7 3 LTPA245A Platen Block Appearance and Dimensions Unit mm ...
Страница 63: ...7 8 Figure 7 7 LTPA245B LTPA245C and LTPA245D Platen Block Appearance and Dimensions Unit mm ...