Portable printer for handheld computer

Details Portable printer for handheld computer Portable printer for handheld computer

1995-02-24

1996-05-28

Yan, Ren

Typewriting machines

Pocket typewriter

400693, 361189, B41J 336

Patent

active

055204708

ABSTRACT:
An improved portable printer apparatus adapted to interface with a handheld computer in either of two alternative ways, including via a connector locating in a receiving well into which the portable computer can be placed or, alternatively, via a radio link. This provides communication flexibility and enhanced reliability. In another feature, electrical power for the printer apparatus is automatically selected from between a power supply, an external battery, and an internal battery, according to a predetermined hierarchy.

REFERENCES:
patent: 4617638 (1986-10-01), Krause et al.
patent: 4706096 (1987-11-01), Sato
patent: 4980814 (1990-12-01), Hosaka et al.
patent: 5090830 (1992-02-01), Kroeger et al.
patent: 5146490 (1992-09-01), Beckman
patent: 5209583 (1993-05-01), Lewis et al.

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