When Power Is Supplied By The User - Star Micronics DP8340 Series User Manual

12. When pOWer is supplied by the user

Note : The optional AC adapter (PS8340A) has been designed specifically for
this unit(DP8340).
Other AC adapters may not meet the EMC technical standards.
When printer power is supplied by the user rather than through the accessory
power source unit, please be careful of the following points.
Note 1: An electrolytic capacitor (C = 4700µF/25V to 6800µF/25V) must be
connected across the output of the power supply. Use a power supply
of DC 12 V ± 5% and more than 2.0 A with SELV output and LPS or Class
2 (double-insulation structure) output approved by IEC60950.
Note 2: A DC power plug is available as an option.
Note 3: Be careful about installing the printer in an area where there is noise.
Take the appropriate measures to protect against electrostatic AC line
noise, etc.
– 47 –
GND
+12V
GND