KS55 SERIES OPERATION MANUAL
4.2 - KS55 CONNECTORS
On the KS55 could be found the following connectors:
Fig.4.5.
USB or SERIAL RS232 interface connectors.
4.2.1 - Power supply connector
The KS55 is powered by an external power supply by means of 3-pins connector shown below.
Verify power supply voltage before connecting the printer.
Fig.4.6.
Power supply connector J1.
Use a
3-pin DC jack TCS-7960-43-2010 (HOSIDEN)
or equivalent. (See
APPENDIX – HOW TO
ORDER-ACCESSORIES
).
NOTES:
(1) The KS55 requires one power source: VCC (24VDC) for driving the thermal head and
motor.
(2) If the number of dots that are energized at the same time is increased, a higher current
will flow; therefore, a power supply with an adequate current capability must be used.
(3) When designing printing lines and bit images, take the printing ratio and print duty into
consideration. Print quality may be poor if the printing ratio (energizing pulses/dot line) or
print duty is high.
(4) Average energizing pulse width is defined as 64 of 192 dots/dot line that are energized.
WARNING: Beware not to invert the polarity of power supply. This may
irremediably damage the printer. Ensure that the voltage is the correct
one.
IMPORTANT NOTE ABOUT POWER SUPPLY:
The required power supply depends on the content printed on the ticket. A 150W power
supply covers all adverse possibilities (printing ratio of 100% black at any temperature).
However, if the print ratio is not over 60%, a 60W power supply can be used. In any case, power
supply must satisfy the peaks current that mechanism requires, which are determined by the
following formula:
12 of 66
POWER
SUPPLY
POWER
SUPPLY
USB
RS232
GND
24VDC
N.C
