US 5,492,424 AGranted

Carriage-connecting device in a serial printer

AssigneeSeiko Epson Corporation

InventorsTakashi Hori, Hirotomo Tanaka, Toshio Kuriyama

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Abstract

A serial printer is disclosed in which a serial printer body is connected to a carriage via a cable. The carriage is driven by electric power supplied through the cable, and signals are also transmitted between the serial printer body and the carriage through the cable. The cable comprises a sheet-like substrate and a plurality of conductive strips which are formed on the sheet-like substrate and which extend in a longitudinal direction of the sheet-like substrate. The plurality of conductive strips includes at least one wide conductive strip for supplying the electric power and at least one narrow conductive strip for transmitting the signals. The wide and narrow conductive strips are arranged such that noise created by the electric power supplied by the wide conductive strip does not interfere with the signals transmitted in the narrow conductive strip.

Claims15

Dependent claims

A carriage-connecting device in a serial printer, comprising:

a serial printer body;
a cable;
a carriage, which has a printing head and a sensor, connected to said serial printer body via said cable,
said printing head is driven by electric power supplied to said printing head through said cable,
signals, which are generated by said sensor, are transmitted between said serial printer body and said carriage through said cable,
said cable comprises a sheet-like substrate and a plurality of conductive strips which are formed on said substrate and said conductive strips extend in a longitudinal direction of said sheet-like substrate,
said plurality of conductive strips comprise at least one wide conductive strip supplying said electric power and at least one narrow conductive strip for transmitting said signals,
said at least one wide conductive strip and said at least one narrow conductive strip are spaced on said sheet-like substrate in such a manner as to reduce the amount of noise caused by said electric power in said signals transmitted in said at least one narrow conductive strip.

5 more elements

Dependencies are inferred from the claim text.