Ge BE E + F Gm bH • ww w .oe m- pri nte r .co m • Ge BE Do k.N r .: SM AN -E- 413 -V3 .0 Eas y-L oad ing The rm al Pri nte r GPT -43 52
C on ne ct in g th e Pr in te r
6
5 C on ne ct in g th e Pr in te r
During installation:
Always disconnect the power !!
5.1 Connecting the power supply (1)
The printer can be supplied with fixed voltage fr om a power supply or a battery . Battery or power supply ar e plug-
ged into the same connector . Thr ough the voltage supply connection, the printer can be supplied with voltages
between 3.5 V (for printers with Centr onics adapters with 4.5V) and 7.2 V . The supply for the logic chip is pr oduced
on the boar d. The power cable GKA-410, included in sets 1 and 3, is connected to the connector J4 (3 r ed wir es
for + 3.5 -7.2 VDC , 3 black gr ounding wir es, and one white cable for an NTC 6.8 KOhm of a Ni-MH battery). For
simple power connections, the white wir e r emains unconnected. W e r ecommend keeping the length of the line as
short as possible. The longer the line, the higher the line r esistance, causing bad print quality or even printer failu-
r e.
Attention:
A void confusing the connection poles, because it can cause immediate damage to the printer . Car eful-
ly check the power supply connection befor e you tur n on the printer .
5.2 Power Down (2)
Starting with har dwar e version V1.4c the standar d version does not support the power -of f mode.
The contr oller comes with dif fer ent levels of power saving modes (power down modes):
• idle mode (8 mA typical)
• sleep mode (20 µA typical)
• power -of f mode (0.1 µA typical), optional configuration r equir ed
During the r eceiving of data and during printing the contr oller is in an active status.
With the parallel interface, the ballast r esistor R35 is not part of the standar d configuration.
Connect jumper J3 for idle mode.
Remove jumper J3 for sleep mode.
Power -of f logic ist not in the standar d configuration (r eplaced by R37).
5.3 Connecting the Char ger(3)
EV AL printers have a standar d char ging cir cuit for 4 Ni-MH cells.
An operation with 3 or 5 cells is also possible. The char ging is per -
formed by the uncontr olled plug-in power supply GNG-6V -0,5A-U
that has a special inter nal r esistance. It is connected thr ough the
cable GKA-416 to the connector J1. The char ging time for a 1500
mA/h battery will be about 5 hours. During the char ging pr ocess,
the LED on the contr ol panel will display dif fer ent pulses that show ,
whether the fast or trickle char ging mode is active.
1
3
2
4
5
6
A TTENTION !
Never use a fixed-voltage power supply for char ging the batteries. The char ging cir cuit is a "simple -
switch contr ol", meaning that the curr ent limitation is not done in the char ge contr ol of the printer ,
but in the plug-in power supply .
Please use the suitable GeBE power supply GNG-6.0V -0,5A-U.