GeBE E + F GmbH • www.oem-printer.com • GeBE Doc.No.: SMAN-E-413-V4.1 Easy-Loading Thermal Printer GPT-4352(-60)
Connecting the Printer
6
5 Connecting the Printer
During installation:
Always disconnect from power!
5.1 Connecting the power supply (3)
The printer can be supplied with fixed voltage from a power supply
or a battery. Battery or power supply are plugged into the same
connector. Through the voltage supply connection, the printer can
be supplied with voltages between 3.5 V (for printers with Centro-
nics adapters with 4.5V) and 7.2 V. The supply for the logic chip is
produced on the board. The power cable GKA-410, included in sets
1 and 3, is connected to the connector J4 (3 red wires for + 3.5 -7.2
VDC, 3 black grounding wires, and one white cable for an NTC 6.8
KOhm of a Ni-MH battery). For simple power connections, the white
wire remains unconnected. We recommend keeping the length of
the line as short as possible. The longer the line, the higher the line
resistance, causing bad print quality or even printer failure.
5.2 Power Down
Starting with hardware version V1.4c the standard version does not support the power-off mode.
The controller comes with different levels of power saving modes (power down modes):
• Idle mode (8 mA typical)
• Sleep mode (20 µA typical)
• Power-off mode (0.1 µA typical), optional configuration required
During the receiving of data and during printing the controller is in an active status.
With the parallel interface, the ballast resistor R35 is not part of the standard configuration.
Connect jumper J3 for idle mode.
Remove jumper J3 for sleep mode.
Power-off logic ist not in the standard configuration (replaced by R37).
5.3 Connecting the Charger (5)
EVAL printers have a standard charging circuit for 4 Ni-MH cells. An operation with 3 or 5 cells is also possible.
The charging is performed by the uncontrolled plug-in power supply GNG-6V-0,5A-U that has a special internal re-
sistance. It is connected through the cable GKA-416 to the connector J1. The charging time for a 1500 mA/h bat-
tery will be about 5 hours. During the charging process, the LED on the control panel will display different pulses
that show, whether the fast or trickle charging mode is active.
Never use a fixed-voltage power supply for charging the batteries. The charging circuit is a "simple switch control",
meaning that the current limitation is not done in the charge control of the printer, but in the plug-in power supply.
Please use the suitable GeBE power supply GNG-6,0V-0,5A-U. In case of technical questions, please contact the
GeBE technic support (see chapter 17).
Designations:
1 Infrared (if equipped)
2 Connection winder
3 Connection power
4 SPI
5 Connection charger (Akku)
6 Connection RS232 / V.24
Avoid confusing the connection poles, because it can cause imme-
diate damage to the printer. Carefully check the power supply con-
nection before you turn on the printer.
