JPS58194579A - Printer - Google Patents

Abstract

PURPOSE:To enable to reduce the number of component parts, by a method wherein a type wheel for receipt printing is moved to conduct journal printing, and a selecting trigger electromagnet and the type wheel are used for both printing modes, in a printer for ECR. CONSTITUTION:The type wheels 9 waiting on the journal side are stopped when desired types at respective digit places are aligned, by the rotation of a type wheel driving shaft 11 in response to a printing command and functions of an electromagnet 13,a selecting lever 14 and a returning spring 15 of a selecting means 16. Then, the type wheels 9 are moved to a receipt printing position by moving means 17-22 while being inked by an inking roller 4, and a receipt printing recording paper 8 is pressed by a rotation of a receipt printing roller 6 effected by a driving member 7, thereby printing. Then, the type wheels 9 are returned to a journal printing position, similarly print on a journal printing recording paper 3, and are stopped at a stand-by position by a selecting means 16 through a re-rotation of the driving shaft 11. Accordingly, the number of component parts can be reduced, and reliability can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ICOR printer that prints on receipt paper and journal paper arranged side by side.

Conventionally, IcOR printers that print on receipt paper and journal paper placed side by side have used the same type of journal printing type wheel as the receipt printing type wheel, even though the printed characters on the receipt paper and journal paper are often the same. had the same characters printed on journal paper and receipt paper, respectively.

The present invention is an IC where the printed characters on the receipt and the journal are often the same! Taking into full consideration the characteristics of the R printer, it is possible to perform journal printing by moving the type wheel for receipt printing. The purpose is to provide an inexpensive XOR printer that can be shared with other printers, greatly reduces the number of parts, and is inexpensive.

The present invention will be explained below using examples.

Figure 1 is a front view showing an embodiment of the present invention.
．． Reference numeral 7 designates a printing means, and reference numeral 1 represents a journal printing roller for printing on the recording paper 3 for journal printing, which is driven by a journal printing roller drive member 2. Reference numeral 4 represents an ink roller that transfers ink to the printed characters, and 5 represents an ink roller support member.

Reference numeral 6 denotes a receipt printing roller for printing on recording paper 8 for printing receipts, and is driven by a receipt printing roller drive member 7. Reference numeral 9 denotes a type ring on which printed characters such as letters and symbols are arranged around the outer periphery, and the number of digits required for journal printing is arranged. 10 is a type wheel shaft that supports the type wheel 9; 11 is a type wheel drive shaft that supports the type wheel shaft 10 and has a key groove in a part of the shaft.

The key groove of the type wheel drive shaft 11 and the protrusion of the type wheel shaft 10 that engages with the key groove play the role of transmitting rotation in the circumferential direction and as a guide for sliding the type wheel shaft in the thrust direction. 12 is a slide leno for sliding the type wheel shaft 10 (-116 to 16 are selection means necessary for waiting the desired type at the printing position, 15 is an electromagnetic coil, 14 is a selection lever, 15 is a selection lever return spring, 1
6 is a selection lever shaft. 17-22 are selected reno (-1
2 in the thrust direction of the type wheel shaft 10 (this is the same as the reciprocating movement iam of the print head by the rotating disk of the print head in JP-A-53-65114, so it will be briefly explained).

The driving force transmitted from the motor (not shown) is transmitted from the drive gear 17 to the transmission gear 18 by the gear.
The transmission gear 18 has a grooved cam and the crotch is a slider (do L//(-12
-S of the drive lever 21 that drives the groove cam is engaged with the groove cam. The drive lever 21 operates using the drive lever shaft 20 as a fulcrum, engages with the slide lever shaft 22, and moves the slide lever 12.

23 and 24 are frames. I have described the F configuration below,
Next, the operation of one printing cycle will be explained with reference to the timing chart of FIG. One printing cycle can be roughly divided into a type selection process, a receipt printing process, a journal printing process, and a reset process. In the type selection process, the type wheel 9 etc. are waiting on the journal side as shown in the figure.
When a print command is issued from the printer control unit (not shown), the character 1 drive shaft 11 begins to rotate.Accompanying this, the selection means 13 to 16 operate so that the desired character of each digit is printed at the printing position. The operation is completed when the type wheel drive shaft 11 stops.

The above is the type selection process, and next, the receipt printing process will be explained. The printing process includes the steps of inking and printing the type, and the type to be printed aligned at the journal printing position (first printing position) is moved as it is to the moving means 17~
22, it is moved in the direction of arrow A to the receipt printing position (second printing position W). At this time, the ink is transferred by the ink roller 4. At this time, together with the type wheel 9, the type wheel shaft 10, the slide lever 12, and the selection means 15 to 16
moves. When the movement is completed, the receipt printing roller 6 is rotated by the receipt printing roller drive member 7, and presses the printed characters through the recording paper 8 for printing the receipt. Then, the ink transferred by the ink roller 4 is further transferred to the recording paper 8 for receipt printing. The above is the receipt printing process.

Next is the journal printing process, in which the moving direction is in the direction of arrow B, and the remaining operations are the same as the receipt printing process.

In the final centration step, when the type wheel drive shaft 11 rotates again, the type wheel 9 is stopped at the original standby position by the selection means 15 to 16, and the type wheel drive shaft 11 etc. are stopped by a stop signal from the printer control section. Then, the reset process and one printing cycle are completed.

As described above, according to the present invention, by taking advantage of the feature that printing is the same on receipt paper and journal paper in a KOR printer, and using selected type for both journal side printing and receipt side printing, the type can be printed more easily than before. Ring 9 is cut in half. Along with this, the method for selecting type wheels can be cut in half, resulting in significant cost reductions and lower prices.
We can provide OR printers. In addition, the fact that the number of type wheels 9 and selection means 16 to 16 can be reduced to half compared to conventional ones increases the reliability of the selection part of the printer, reduces the burden of testing at the design stage, and improves ease of assembly. It has the effect of increasing the direction and direction. In addition, conventionally, power consumption is high because the receipt electromagnetic coil and the journal electromagnetic coil are energized at the same time, but according to the present invention, the power consumption is halved because the electric bomb coil is halved, so the power consumption is reduced. will be significantly reduced.

FIG. 3 is a diagram showing a second embodiment of the moving means, in which 25 is a first plunger for moving from the journal to the receipt, 26 is a 21st plunger for moving from the receipt to the journal, and 27 is the 11th plunger 25 and second
It is a movable iron core common to plunger 26, and a part of it is part of bin 29.
is fixed. Reference numeral 28 is a drive lever that engages with a fixed pin 29 and moves the fulcrum shaft 30 to the center of rotation.

The moving method is as follows: When the first plunger 25 is energized when desired to move, the movable core 27 moves in the direction of arrow C, and when it reaches the receipt position of the drive lever 28, that is, it moves to the drive lever 28-1 shown by the dotted line. . At this time, the current is turned off and a holding current is allowed to flow.Then, to move in the opposite direction, the holding current of the eleventh plunger is first cut off, and the second plunger is turned on, and the rest is carried out in the same manner as described above.

In addition to the methods shown in the first and second embodiments, there are various possible moving means according to the present invention, and there are also various printing means and selection means.

This is an EcR printer that achieves low power consumption.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention, and 1 is a jar +
7' mark II roller, 4 is an ink roller, 6 is a rent printing roller, 9 is a type wheel, 1o is a type wheel shaft, 11 is a type wheel drive shaft, 12 is a slide lever, 13 to 16 are selection means, 17 to 22 are This is a moving means that moves the type wheel in the thrust direction. FIG. 2 is a timing chart showing an embodiment of the present invention. FIG. 3 shows a moving means according to another embodiment of the present invention. Above 11 applicants
Shinshu Seiki Co., Ltd. Agent Patent Attorney Mogami Tsutomu

Claims (1)

[Claims] A type wheel having 11'# characters, symbols, etc. on its outer periphery, a type wheel shaft to which a plurality of the type wheels are mounted, and a selection means for selecting desired characters and symbols and aligning and stopping them at a first printing position; moving means for moving the type wheel selected by the selection means from the first printing position to a second printing position in the thrust direction of the type wheel shaft; 1. A printer comprising a printing means for printing at a printing position.