JPS59228460A - Printer - Google Patents

Abstract

PURPOSE:To attain miniaturization and 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 ratio of the number of dots of both means integer. 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 of a print means 5 or a reading means 6 is mounted on the carriage 4 attachably and detachably and they are replaced with each other. Further, the carriage 4 is provided with a carriage side connector 7 connected electrically to the reading control section 2, and in case of mounting the print means 5, a print means connector 8 is connected thereto, while in case of the read means 6 is mounted, a reading means connector 9 is connected thereto. Then the ratio of the number of dots of a print head and the number of reading dots of the reading means 6 is made integer.

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) A printing device is used as an input/output device for computers, word processors, personal computers, etc., and this printing device is used to print characters such as letters, symbols, and images on printing paper using a collection of dots tb. The ones described above are widely used, and this type of printing device is classified into non-impact type and impact type. Non-impact types include thermal printers, inkjet printers, laser printers, etc., including those that directly record on thermal paper and those that thermally transfer using ink cartridges. On the other hand, impact type printers include, for example, wire dot type 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 reading means to a conventional printing device, the device must be large and the control system for the printing and reading means built into the main body of the printing device as well as the carriage drive system becomes complicated and costly. However, there are disadvantages in that it may cause uptime, and it becomes difficult to store and read data from any external storage such as a 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 ratio of the number of dots of these two means an integer.

(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 control section 2 installed in a main body, a carriage drive system 3 controlled by the control section, and a carriage 4 driven by the carriage drive system. On the carriage, either one of the printing means 5 and the reading means 6, which are mutually exchangeable, is removably mounted. Further, the carriage 4 is provided with a carriage-side connector 7 electrically connected to the print reading multi-control unit 2, and when the printing means 5 is installed, the printing means connector 8 is connected to this, and the reading When the reading means 6 is installed, the reading means connector 9 is connected to it.

The print reading system section 2 is connected to a storage section 50 consisting of an external storage device such as a floppy disk, and is configured to store and read data.

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

Carriage 4#'i moves along carriage guide bar 10. The back surface of the printing paper is guided and supported by the surface of the platen 12.

A carriage side connector 7 is attached to the support shaft 13 provided on the carriage 4.
is rotatably supported, and a connector 8 for printing means is removably fitted to this gear 1 nozzle (1411 connector).A print head 14 is provided at the tip of the connector 8 for printing means. By forcefully driving the carriage side connector 7 in the direction of arrow A with a step motor (not shown) attached to the carriage 4 via /4-15, the print head 14 is The head is raised from the pressure contact position shown in the figure to the separation position, and the paper feed tfc is brought into a state in which paper can be taken in and out.During printing, the print head 14 is pressed against the print paper 11 by a spring or the like.

Further, a glue link 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. Inside the Tonori Den cassette, there are provided a take-up CIJ reel 18 which is rotated in accordance with the printing speed by a drive shaft (not shown) on the side of the carriage 4, and a supply reel 19 which is rotated following the printing speed. The ink cartridge 20t is caused to run between the printing head 14 and the printing paper 11(5).

The printing means 5 in FIGS. 2 and 3 is a separate print head 1.
It is composed of four cassettes and a cassette set 16, each of which is individually attached to the carriage 4 so as to be replaceable. In addition, in the case of a printing method that does not require the resin cassette 16 (such as a method using thermal paper), only the print head 14 can be replaced via the connector 7.8 without using the resin cassette. It is good to attach it to.

Next, a case where a reading means 6 is mounted on the same carriage 4 in place of the printing means 5 will be explained with reference to FIGS. 4 and 5. In addition, in Figures 4 and 5, Figures 2 and 3 are
Parts corresponding to the figures are indicated by the same reference numerals, and explanations of overlapping parts will be omitted. In Figs. 4 and 5, a reading cartridge set (9 reading means) 6 is replaceably mounted in a predetermined position using a positioning pin 17 or the like. This reading cassette 6 is provided with a reading means connector 9, and in the attached state, this connector of C6) is also connected to the carriage side connector 8 and electrically coupled.

In this case of reading, 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).

Inside the reading cartridge 6, as shown in FIG.
a lamp 21 that irradiates a light beam onto the surface of the manuscript paper 11; a lens unit 22 that collects reflected light from the surface of the manuscript paper;
A light receiving element 23 and a circuit board 24 are provided for converting the light passing through the lens unit into an electrical signal.

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

Therefore, the ratio between the number of dots printed by the print head 14 in FIGS. 2 and 3 and the number of dots read by the reading means 6 in FIGS. 4 and 5 is an integer. For example, if the number of printed dots is 16 and the number of read dots is 8, the ratio is 2:
1, or conversely, the number of printed dots is 8 and the number of read p-dots is 16, making the ratio 1:2.

Therefore, when the number of printed dots is twice the number of read dots, as shown in FIG.
...and the second line A1, C... are read line by line, and all of them are stored in the memory section Y as A, B, C...A11B, No...
When storing the data in this order and printing this data, print two lines at the same time on paper Z: lines A, B, C... and lines A, B, NO,... be able to. This printing operation can be easily performed by making some modifications to the reading control of the storage section 50, and data storage and reading can be performed extremely easily.

Also, when the resolutions are the same, if the drive system such as the carriage is controlled based on the one with the smaller number of dots (reading in the case mentioned above), the drive control for the one with the larger number of dots (printing) will be performed using exactly the same thread path. be able to.

When the number of read dots is an integral multiple of the number of print heads, the number of print dots may be used as a reference, contrary to the above, and the same effect can be achieved.

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 in which system control can be made the same.

[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 partially sectional plan view taken from the arrow ■-■ in FIG. 2; FIG. 4 is a longitudinal sectional view when the reading means is in use;
FIG. 5 is a partially sectional plan view taken from line v-■ in FIG.
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... For reading means Connector, 11... Carriage guide bar, 14...
Print head, 16... Reden cassette. Figure 1 L ++ -'' Figure 2 Figure 4 Figure 6

Claims (1)

[Claims] (1) Printing characterized in that the printing means and the reading means are replaceably attached to the same carriage that moves along the surface of the printing paper, and the ratio of the number of printed dots to the number of read dots is an integer. Device.