Star-micronics DP8340 User Manual download pdf (Page 56)

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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: The power supply must be +12V 2A or above. An electrolytic ca-

pacitor (C = 4700µF/25V to 6800µF/25V) must be connected across

the output of the power supply.

Note 2: A DC power plug is available as an option.

Reference: Design the power supply referring to the power supply circuit shown

below.

Note: A line noise filter must be used to prevent line transients from passing

through power supply. Filter design to be determined by environmental

noise requirements.

10. WHEN POWER IS SUPPLIED BY THE USER

+10%

–5%

+12V

GND

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Star-micronics DP8340 User Manual Page 56