Output; Changing Circuit; Output Voltage - Acroprint ATR120 Service Manual

9-3. Output

Secondly output: DC12V
The secondly output voltage of this machine. The driver voltage shown below are produced from this main

output voltage:

Print drive power: Approx. 11V (Signal name: 12V)
This voltage is produced by the diodes PD4 and PD5 from the secondary output (12V). when the power is cut off,
it is supplied from the NiCd batteries through the diode PD7.
Logic circuit power: 5V
A three-pin regulator (PU2) produces this voltage from the Print drive power supply and supplies it.
ACLO/ output
This signal is used to check whether AC power is input or not. It is produced from the secondary main output
voltage.

9-4. Changing Circuit

The change circuit charges the NiCd batteries by RPR16 from the Print drive power.
9-5. Output Voltage
Signal name
12V
5V
ACLO/
Voltage range Voltage range (No load)
10.5
5
4.5
11.5
5
4.5