JPS59228459A - Printer - Google Patents

Abstract

PURPOSE:To attain miniaturization and also to attain ease of control of a carriage driving system and storage and read of data by mounting a reading means replaceably with a print means and making the number of dots of both the means the same. CONSTITUTION:A printer 1 has a print reading control section 2 mounted in a main body, carriage driving system 3 and a carriage 4, and either a print means 5 or a reading means 6 is mounted on the carriage 4 freely attachably and detachably and the means 5 and 6 are replaced with each other. Further, the carriage 4 is provided with a connector 7 at carriage side connected electrically to the print reading control section 2, and in case mounting the print means 5, a print means connector 8 is connected thereto in case mounting the reading means 6, a reading means connector 9 is connected thereto, and the print reading control section controls the print or reading means.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a printing device, and particularly to a printing device that is capable of reading printed materials in addition to printing.

(Prior Art) Printing devices are used as input/output devices for computers, word processors, personal computers, etc., and these printing devices print small images of letters and symbols (characters) on printing paper using collections of dots. The printing devices described above are widely used, and these printing devices are classified into non-impact type and impact type. Non-impact types include thermal printers, including those that directly record on thermal paper and those that thermally transfer via an ink ribbon, inkjet printers, and laser printers. On the other hand, impact type printers include wire dot printers.

This type of conventional printing device has only a printing function, and cannot read original documents such as printed matter.

Further, a facsimile machine for transmitting and receiving images is fixedly equipped with both a reading means and a printing means (copying means).

Therefore, if we try to apply the facsimile principle to the above-mentioned printing device to provide multiple reading functions, it is necessary to add a reading means in addition to the printing means, which increases the number of parts installed in the carriage and increases the number of parts installed in the printing device. This is not desirable from a practical point of view, since it leads to an increase in size and weight.

Furthermore, when adding a unique reading υ means, not only the control system of the printing and reading means built into the main body of the printer but also the control of the carriage drive system become complicated, resulting in cost increase.
There is a drawback that it becomes difficult to store and read data from and to an external storage device such as a floppy disk or floppy disk.

(Objective) The object of the present invention is to eliminate the drawbacks of the prior art,
It is an object of the present invention to provide a printing device which can be miniaturized and which can also be used as a reader and which can easily control a carriage drive system and easily store and read data.

A feature of the present invention is that the above object is achieved by attaching the reading means interchangeably with the printing means and making the number of dots in both means the same.

(Description of Examples) The present invention will be specifically described below with reference to FIGS. 1 to 6.

In FIG. 1, a printing device 1 according to the present invention includes a print reading controller 2 installed in the main body, a carriage drive system 3 controlled by the controller, and a carriage 4 driven by the carriage drive system. A printing means 5 and a reading means 6, each of which is replaceable with the other, are detachably mounted on the carriage. Further, the carriage 4 is provided with a carriage-side connector 7 electrically connected to the print reading control unit 2, and when the printing means 5 is attached, the printing means connector 8 is connected to this, and the reading When the printing means 6 is installed, the reading means connector 9 is connected to it, and the printing or reading means is controlled by the print reading control section.

The print reading control section 2 is connected to a storage section 50 consisting of an external storage device such as a floppy disk.

The carriage 4 moves along the surface of the printing paper, and the printing means 5 is, for example, a combination of a print head handle and a cassette, and the reading means 6 is, for example, a reading cassette with a built-in photoelectric device. used.

The state in which a thermal transfer type printing means consisting of a print head and a ribbon cassette is mounted on a carriage will be described with reference to FIGS. 2 and 3.

The carriage 4 moves along a carriage guide bar 10 in a direction across the printing paper 11. The back side of the printing paper is guided and supported on the surface of the platen 12. A carriage-side connector 7 is swingably supported on a spindle 13 provided on a carriage 4, and a printing means connector 8 is attached to and detached from this carriage-side connector. Installed as possible. A print head 14 is provided at the tip of the connector 8 for printing means. A lever 15 that is driven in the direction of arrow A by a step motor (not shown) mounted on the carriage 4 is connected to the carriage side connector 7, and by controlling the step motor, the print head 14 is moved as shown in the figure. The head is raised from the pressure contact position to the separation position so that paper can be fed or taken in and out.

Further, a beam cassette 16 is removably attached to a predetermined position on the upper surface of the carriage 4 using a positioning pin 17 or the like. A drive shaft (not shown) on the side of the carriage 4 is provided in this glue cassette with a take-up reel 18 that rotates in accordance with the printing speed and a supply reel 19 that rotates following the printing speed. The ink ribbon 2o is run between the print head 14 and the print paper 11.

The printing means 5 in FIGS. 2 and 3 is a separate print head 1.
4 and a ribbon cassette 16, each of which is individually and replaceably mounted on the carriage 4. In the case of a printing method that does not require the ribbon cassette 16, only the print head 14 may be replaced via the connector 7.8.

Next, a case where a reading means 6 is installed in the same carriage 4 in place of the printing means 5 will be described with reference to FIGS. 4 and 5. In addition, in Figures 4 and 5, Figures 2 and 3 are
Portions corresponding to the figures are indicated by the same reference numerals, and explanations of overlapping portions will be omitted.

4 and 5, a reading cartridge set (reading means) 6 is mounted on the upper surface of the carriage 4 so as to be replaceable at a predetermined position using a positioning bin 17 or the like. This reading cartridge set 6 is provided with a connector 9 for reading means, and in the attached state, this connector is also connected to the carriage side connector 8 and electrically coupled.

In the case of this reading method, the printing paper 11 is a manuscript paper on which characters and images have already been recorded, such as a manuscript or a copy (printed material).

As shown in FIG. 5, the reading cartridge set 6 includes a lamp 21 that irradiates a light beam onto the surface of the document paper 110, a lens unit 22 that collects reflected light from the surface of the document paper, and a light beam that passes through the lens unit. A light receiving element 23 that converts light into an electrical signal and a circuit board 24 are provided.

Therefore, the carriage 4 can be read while moving along the original paper 11.

Therefore, the number of dots printed by the print head 14 in FIGS. 2 and 3 is the same as the number of dots read by the reading means 6 in FIGS. 4 and 5 (for example, 8 dots). .

That is, the number of dots in the vertical direction is the same when printing and reading are performed line by line in the horizontal direction.

Therefore, as shown in FIG. 6, the first rows A and B on the document surface
, C... and the second row A2, C... are read and stored in the storage section Y in the order of A, B, C... A22 B, C..., and this data is When printing, mark A and B on the first line on paper Z.

It becomes extremely easy to record C..., A, B, C, etc. in the same order on the second line.

That is, even if the carriage drive system is controlled in exactly the same way, data can be stored and read in the same order, and if the resolution is adequate, multiple printing and reading operations can be performed under the same mode of control.

The present invention is applicable to all types of dot printing devices, whether impact type or non-impact type, as long as they display characters or images using a collection of dots.

(Effects) As is clear from the above description, according to the present invention, it is possible to achieve miniaturization and cost reduction of the device, and it is easy to store and read data, and if the reading and printing resolutions are equal, the drive A readable printing device is obtained which allows for identical control of the system.

[Brief explanation of drawings]

FIG. 1 is a block diagram illustrating the overall configuration of a printing device according to the present invention, FIGS. FIG. 3 is a partial cross-sectional plan view taken from the arrow ■-■ in FIG. 2; FIG. 4 is a vertical cross-sectional view when the reading means is in use;
Figure 5 is a partially sectional plan view taken from line ■-■ in Figure 4;
FIG. 6 is an explanatory diagram illustrating the manner in which data is stored and read in the printing apparatus of the present invention. 1...Printing device, 2...Print reading control unit, 3...
- Carriage drive system, 4... Carriage, 5... Printing means, 6... Reading means, 7... Carriage side connector, 8... Connector for printing means, 9... Reading means connector, 11 carriage guide bar, 14... print head, 16... ribbon cassette set. (9) Figure 1 L + -J Figure 2 Figure 4

Claims (1)

[Claims] (1) A printing device characterized in that a printing means and a reading means are interchangeably attached to the same carriage that moves along the surface of printing paper, and the number of printed dots and the number of read P dots are made the same. .