Seiko Instruments LTP F Series 用户手册

The printer has a built-in head driver IC.  Table 3-11 shows the head voltage.

Table 3-11  Head Voltage

Head drive voltage

V

P

21.6 to 26.4 V

Head logic voltage

V

dd

4.75 to 5.25 V

Since the peak current (maximum current) may reach the values calculated using equation (1) 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 (1):

I

P

=

I

P

:

Peak current (A)

N:

Number of dots that are driven at the same time

V

P

: Head drive voltage (V)

RH: Head resistance (

Ω)

N 

× V

P

RH