JPH02128871A - Printer device - Google Patents

Abstract

PURPOSE:To set a paper feed pitch independently by a method wherein paper feed mechanisms are independently provided for every printing station, and a drive mechanism for driving the respective paper feed mechanisms at different speeds under control is mounted. CONSTITUTION:A paper feed mechanism 8 is driven in such a manner as the rotation of a drive motor 1 is transmitted to a drive shaft 12 through a gear 2 and a gear 3 and further to the paper feed mechanism 8 through a gear 4 and a gear 6. On the other hand, a paper feed mechanism 9 is driven in such a manner as the rotation transmitted to the drive shaft 12 is transmitted to the paper feed mechanism 9 through a gear 5 and a gear 7. In the drive power transmission gears 2 - 7 for driving the paper feed mechanisms 8, 9, a gear pitch ratio of the gear 4 and the gear 6 is determined to be different from that of the gear 5 and the gear 7. In this manner, the paper feed mechanism 8 and the paper feed mechanism 9 can feed printing paper at different speeds.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printer device, and particularly relates to a printer device including two or more paper feeding mechanisms in which the paper feeding mechanisms can be individually controlled. .

[Conventional technology]

Generally, a printer device in a PoS terminal device or the like is equipped with two or more print stage date and paper feeding mechanisms for issuing receipts, printing journals, and the like.

Examples of prior art related to this type of printer device include:
JP-A-60-257270, JP-A-55-492
Techniques described in Japanese Patent Application Laid-open No. 84, Japanese Patent Application Laid-open No. 62-204977, and the like are known. These conventional technologies perform the same control on each of two or more paper feeding mechanisms, and even if it is possible to individually control whether or not to feed the paper, the paper feeding pitch cannot be adjusted. It cannot be changed or otherwise controlled.

[Problem to be solved by the invention]

In the conventional technology, two or more paper feeding mechanisms are controlled by one paper feeding drive mechanism, so even if a printer device is equipped with two or more printing stations, the paper feeding pitch of those printing stations can be adjusted. are the same, and there is a problem that the paper feed pitch cannot be changed for each printing station.For example, in a PoS terminal device, it is necessary to print a sheet and a journal, but printing a journal is not possible. , there is a demand for high-density printing with as much space between lines as possible. However, the above-mentioned conventional technology cannot meet such requirements, and has the problem that both receipts and journals can only be printed with the same line spacing.

SUMMARY OF THE INVENTION An object of the present invention is to provide a printer device including a plurality of printing stations in which the paper feeding pitch of each printing station can be changed independently.

[Means to solve the problem]

According to the present invention, the above object is achieved by independently providing a paper feeding mechanism for each printing station, and by providing a drive mechanism for driving and controlling each paper feeding mechanism at different speeds.

[Effect]

The paper feeding mechanism of each printing station is driven by a motor to which a control signal is applied via a drive mechanism that drives each paper feeding mechanism at a different speed, and the printing paper can be fed at a different pitch to each printing station. . Further, one print head of each print station is commonly provided in each print station and is commonly controlled.

Therefore, it is possible to obtain prints with different line spacings on the print paper of each print station printed by the print head that is commonly controlled.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a printer device according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a diagram showing an example of printing. In FIGS. 1 and 2, 1 is a driving motor, 2 to 7 are gears for transmitting driving force, and 8.
9 is a paper feed mechanism, IO is a print head, 11 is a head shaft, 12 is a drive shaft, and 13 and 14 are printing examples.

A printer device according to an embodiment of the present invention includes two printing stations as shown in FIG. These two print stations are commonly equipped with a drive motor 1 and a print head IO. 2
Printing paper (not shown) fed by two paper feeding mechanisms 8.9 is printed by the action of the rad 10, which is common to the reprinting paper that is controlled to move left and right on the head shaft 11.

The paper feed mechanism 8 is driven by the rotation of the drive motor 1 being transmitted to the drive shaft 12 by gears 2 and 3, and further transmitted to the paper feed mechanism 8 by gears 4 and 6. . Further, the paper feeding mechanism 9 is driven by the rotation transmitted to the drive shaft 12 being transmitted to the paper feeding mechanism 9 by the gears 5 and 7 in the same manner as described above.

Drive transmission gear 2 that drives the paper feed mechanism 8.9 described above.
- 7, by setting the gear pitch ratio between the gear 4 and the gear 6 and the gear pitch ratio between the gear 5 and the gear 7 to mutually different values, the paper feeding mechanism 8 and the paper feeding mechanism 9 can perform printing. Paper can be fed at different speeds. As a result, printing on each of the print sheets sent by the paper feed mechanism 8 and the paper feed mechanism 9 is performed at different pitches.

Printing examples 13 and 14 shown in FIG. 2 show that the pitch ratio between gear 4 and gear 6 in the embodiment of the present invention explained in FIG. 1 is 1% ff < than the pitch ratio between gear 5 and gear 7.
In this case, printing is performed on the printing paper fed by the paper feeding mechanism 8, and printing is printed on the printing paper fed by the paper feeding mechanism 9. In other words, gear 4 with a small gear pitch ratio.
The printing paper fed by the paper feeding mechanism driven by 6 is printed with a large line spacing.

As described above, according to the embodiment of the present invention, it is possible to print the same content on the printing paper of a plurality of printing stations by changing the printing pitch.

In particular, there is no problem with printing on journal paper for storage records in a printer with a two-print station for receipts/journals, as long as it is legible.
Printing on receipt paper must be as easy to read as a receipt given to a customer, but if the present invention is applied to such a printer, it will be possible to print more on journal paper than on receipt paper. This is effective in saving printing paper.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to independently set the paper feeding pitch of each printing station in a printer device including a plurality of printing stations.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a diagram showing an example of printing.

Claims (1)

[Claims] 1. In a printer device equipped with a plurality of print stations and a print head common to the plurality of print stations that prints on the print paper of the print stations, a paper feed provided separately for each of the plurality of print stations. What is claimed is: 1. A printer device comprising a mechanism and a drive mechanism for driving and controlling the paper feeding mechanisms at different speeds.