Seiko LTPA245 Series, Справочное руководство

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3-1
3
SPECIFICATIONS
3.1 GENERAL SPECIFICATIONS
Table 3-1 General Specifications
Item Specification
Print method Thermal dot line printing
Dots per line 384 dots
Resolution 8 dots/mm
×
16 dots/mm (W
×
H)
Print width 48 mm
Maximum printing speed 427 dot lines/s (53.4 mm/s) (at 5 V)
1
616 dot lines/s (77 mm/s) (at 7.2 V)
1
720 dot lines/s (90 mm/s) (at 8.5 V)
1
Paper feed pitch 0.0625 mm
Head temperature detection Via thermistor
Out-of-paper detection Via photo interrupter
Operating voltage range
V
P
line (for head and motor drive)
V
dd
line (for head logic)
4.5 V to 8.5 V
(equivalent to four through six Ni-Cd or Ni-MH
batteries, or two lithium-ion batteries)
2.7 V to 5.25 V
Current consumption
For driving the head (V
P
)
For driving the motor (V
P
)
For head logic (V
dd
)
Average:
1.48 A (at 5 V), 2.13 A (at 7.2 V), 2.51 A (at 8.5 V)
2
Maximum:
1.53 A (at 5 V), 2.20 A (at 7.2 V), 2.60 A (at 8.5 V)
2
Maximum 0.60 A
Maximum 54 mA
1
Maximum printing speed is attained with the following conditions:
! When the driving voltage is 5 V, the character size is a 24-dot font, the line spacing is 16 dots, the temperature of
the head is 50
°
C or more, the number of simultaneously activated dots is 64 dots or less and the head division
driving is not performed.
! When the driving voltage is 7.2 V, the temperature of the head is 10
°
C or more, the number of simultaneously
activated dots is 64 dots or less and the head division driving is not performed.
!
When the driving voltage is 8.5 V, the number of simultaneously activated dots is 64 dots or less and the head
division driving is not performed.
2
When the number of simultaneously activated dots in the head is specified as 64.
CHAPTER