EPC1200 SERIES OPERATION MANUAL
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4.2- POWER SUPPLY
The EPC1200 is powered by an external power supply by means of a female 2-pin polarized
connector that includes a security anchor. The power supply voltage must be verified before powering
the printer.
Terminal nº
Voltage
1 GNDP
2
VCC (5VDC or 12-24VDC)
Fig. 5. -
Power supply connector CON1.
The power supply male connector must be a:
Housing:
VHR-2N or VHR-2M
(JST Ref.)
Terminal:
SVH-21T-P1.1
or equivalent.
NOTES:
(1) 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.
(2) When designing 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.
(3) 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. Use
the 2 terminals (2 wires) with 1 mm² minimum section each.
IMPORTANT NOTE ABOUT POWER SUPPLY:
The current demand depends on the density of the printout. A 60W power supply covers all
adverse possibility (printing ratio of 100% black at any temperature). Anyway, power supply must meet
the peaks current that mechanism requires. As an example, next figure shows the relationship between
a sample ticket and the input current measured for 3 different voltage supplies. As it can be observed,
the peak current required when printing a horizontal line of about 90% density can be as high as 10A
when supplied at 5VDC
.
A very important point to be aware of is the necessity of keeping the supply wiring the shortest
possible. When the printer is supplied with 5VDC, if the input voltage drops a significant quantity the
printer could stop working normally. The longest and thinnest the wire the higher the impedance and
therefore the voltage drop at the input.
FENIX offers different power supplies as an accessory option (See APPENDIX C – HOW TO
ORDER). These power supplies which have been exhaustively tested are available in OPEN FRAME or
ENCLOSED version.
Recommended power
supply
EPC1200-5 / EPC1250
5VDC / 60W
EPC1200-12 (12VDC supply)
12VDC / 60W
EPC1200-12 (24VDC supply)
24VDC / 60W
