JPH0361066A - Printer device - Google Patents

Abstract

PURPOSE:To eliminate a restriction on a distance between a printer device and a host device when the printer device is not used by electrically connecting the host device to an interface circuit part with an optical connecting means consisting of light emitting parts and light receiving parts. CONSTITUTION:An output from a host device 1' is issued from a light emitting part 1A as an optical signal, received by a light receiving part 2A of an inter face part 2', converted to an electric signal, and inputted to an interface circuit 2C. Then, the control of a printer, a printing action, and the like are performed. On the other hand, the state, information, and the like of the printer are outputted from the interface circuit 2C to a light emitting part 2B, converted to an optical signal in the light emitting part 2B, and received by a light receiv ing part 1b of the host device 1'.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printer device, and particularly to an interface unit with a host device.

[Conventional technology]

Conventionally, in an interface section of a printer device, a host device 1 and an interface circuit section 2 are electrically connected via an interface cable 3, as shown in FIG.

[Problem to be solved by the invention]

However, in the conventional interface section, the host device 1 and the interface circuit section 2 are electrically connected via the interface cable 3, so there is a limit to the distance from the host device 1. For example, the distance from the host device 1 is limited. When connecting to such a portable host device, there is a troublesome problem in that the Inter7Ace cable 3 must be connected each time. A large number of superior devices 1
When connecting with the interface cable 3, the attachment of the interface cable 3 must be changed, which is a troublesome problem.

[Means to solve the problem]

In order to solve these problems, in the printer device according to the present invention, the interface section is constituted by an optical coupling means consisting of a light emitting section and a light receiving section.

[Effect]

In the present invention, the host device and the interface section are connected to each other by optical coupling.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of essential parts showing an embodiment of a printer device according to the present invention. In the figure, the host device 1' is provided with a light emitting section IATh and a light receiving section 1B, and the interface section 2' is provided with light receiving sections 2Aj? and light emitting part 2
B are provided and are electrically connected to each other in an infrared beam manner. Note that 2C is an interface circuit.

In such a configuration, the output of the host device 1' is output as an optical signal from one light emitting section, and the output from the interface section 2.
The signal is received by the two light receiving units of 1, converted into an electrical signal, and input to the interface circuit 2C, where, for example, printer control and printing are performed. In addition, the printer status and information are transmitted from the interface circuit 2C to the light emitting unit 2B.
The light is output to the light emitting section 2B, converted into an optical signal, and received by the light receiving section 1B of the host device 1'.

〔Effect of the invention〕

As explained above, the present invention connects the host device and the interface circuit section in a sharp manner by optical coupling means consisting of a light emitting section and a light receiving section. There is no limit to distance,
Great, since cables are not used, multiple host devices can be connected to one
Extremely excellent effects such as ease of using multiple printers can be obtained.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a printer device according to the present invention, and FIG. 2 is a block diagram showing a conventional printer device. 1'...Host device, 1 person...Light emitting unit, 1B...
...Light receiving section, 2'...Interface circuit section, 2
Person... Light receiving part, 2B... Light emitting part, 2C...
・Interface circuit.

Claims (1)

[Claims] A printer device characterized in that a host device and an interface circuit section are connected by an optical coupling means consisting of a light emitting section and a light receiving section.