FENIX IMVICO
TK23 OPERATION MANUAL
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GND
24V DC
nc
2.3.1- POWER SUPPLY CONNECTOR
Attach power supply cable to the 3-pin micro connector. Verify power supply voltage
before making the connection.
The connector is a female 3-pin HOSIDEN type, which have the following pin-out:
Fig.2.6-
Power supply connector as seen from outside the TK23.
Use a 3-pin DC jack KPP-3P model or equivalent.
2.3.1.1 - Optional Power supply connector :
A special version of TK23 (under agreement only), can use for power supply a Male 4-
pin 0.156" pitch (3,96mm) disconectable Crimp style connector.
User side connector type:
Housing:
VHR-4N (JST or compatible)
Contact:
SVH-21T-P1.1 (JST or compatible)
NOTE: All 4 pins must be connected. Terminals 2 and 3 are VCC (24V DC)
Terminals 1 and 4 are GND
The TK23 requires one power source: VCC (24V DC) for driving the thermal head and
motor. This voltage is internally regulated to 5V to control the electronic active parts.
The power supply must meet the following conditions:
VCC:
24V DC +/- 2,4V
Example of printhead current consumption (for the 80mm-wide mechanism):
Print head current consumption at a printing ratio of 35%:
(Printing ratio is defined as the number of dots/dot lines (576 dots)).
1)
Peak current:
3.05 A (when all 208 dots are powered).
NOTE:
Peak current is measured at the minimum resistive value of thermal
head and the maximum operating voltage.
Conditions:
VH max: Head connector terminal voltage max. 26.4V
Rmin: Head resistance value min. 1800 Ohm.
The following formula is used to obtain the head drive peak current:
Ipeak = Vmax (volts) x 576 dots x printing ratio / minimum head resistance value (ohms)
