Printer device

Abstract

A compact and lightweight design for a printer device that is optimally portable. A printed circuit board assembly 22 incorporated in the printer device includes a control printed-circuit board 22a and a power printed-circuit board 22b arranged substantially in L-shaped fashion. A connector 23 electrically couples boards 22a and 22b to each other. The power printed-circuit board, on which large current flows, is located near a large current source. A charge circuit, battery contacts and a control circuit for applying voltage to a thermal head are mounted and concentrated on the sole power printed-circuit board. The control printed-circuit board 22a for controlling recording paper and ink ribbon feed, which require only small current, is located near a small current source, such as an actuator needed for feeding recording paper and an ink ribbon including a recording paper/ribbon feeding mechanism 17. The circuits for controlling recording paper feed and ink ribbon feed are mounted and concentrated on the sole control printed-circuit board 22a. The substantially L-shaped printed-circuit board assembly, serving as a motherboard, is incorporated in the printer device to realize the capabilities of the printer device.

Dependencies are inferred from the claim text.