JPS6124481A - Feeding mechanism of paper for printer - Google Patents

Abstract

PURPOSE:To avoid the blocking of printing paper without interruption with operability when papers are set in the early period by providing a switch by which the main roller for feeding paper and a subsidiary roller for initially setting paper are allowed to work in reverse phases. CONSTITUTION:After a preparatory stage in which a subsidiary roller 2-1 is released and the main roller 2-2 is in non-released state, a switch 6 is turned ON, the roller 2-1 is put into non-released state, and the roller 2-2 is released. At a time when the tip 1' of a rolled paper 1 is passed by a cutter 5, the switch 6 is turned OFF to stop the automatic feeding of paper. Under the usual use condition, the roller 2-1 is released, the roller 2-2 is set to non-release state, and paper is fed by the main roller 2-2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a paper set for a printer, and more particularly to a printer paper feeding mechanism suitable for a cash register (ECR) or a point of sale (PO5).

[Background of the invention]

Conventional printer paper feeding mechanisms that issue receipts require the paper to be cut for each transaction. Since the paper was designed to be printed in one section and then cut by the cutter 5, if the leading edge of the paper hit a part of the mechanism and the paper stopped there, a new paper would be sent out by the roller 2. Another drawback is that paper tends to become clogged inside the paper feed mechanism.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a printer paper feeding mechanism that is less likely to cause clogging of paper without impairing operability during initial paper setting.

[Summary of the invention]

The present invention provides a printer comprising a mechanism for printing on roll paper and a mechanism for cutting the printed recording paper for each transaction, including a main roller for paper feeding, a sub-roller for initializing the paper, and the main roller. This is characterized by the provision of a switch that causes the sub rollers to operate in opposite phases.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 2 to 4.

Figure 2 shows a state in which roll paper is prepared at the end of the paper feed as a preparation stage for initial paper settings, Figure 3 shows paper being automatically fed during initial settings, and Figure 4 shows normal usage. ing.

As a preparation step for initial setting of paper, the leading end 1' of the roll paper 1 is prepared inside the paper feeding sub roller 2-1 as shown in FIG. In the preparation stage, the operation changeover switches 6 for the sub roller 2-1 and the main roller 2-2 are turned off, so that the sub roller 2-1 is released and the main roller 22-2 is not released.

After the above preparations are completed, by turning on switch 6,
As shown in Fig. 5, the sub roller 2-1 is not released, and the main roller 2-1 is not released.
2 is released, the roll paper 1 is sent out by the sub roller 2-1, the leading edge 1' passes between the print head 3 and the platen 40, and is in the released state.

The paper passes through the main row 22-2 of the paper without any resistance, and finally, when it passes the cutter section 5, the switch 6 is turned off, and at the same time, the automatic feeding of the paper is stopped.

FIG. 4 shows the state after the initial setting of the paper is completed and is in normal use. In this state, the auxiliary roller 22-1 is released, the main roller 2-2 is not released, and the paper is fed by pulling the inside of the paper feeding mechanism by the main roller 22-2.

According to this embodiment, the initial setting of paper can be automatically fed with a simple operation, and the structure is such that it is pulled during normal use.
Even if the paper gets caught in the middle, it will be forcibly pulled, making it less likely to become clogged.

〔Effect of the invention〕

According to the present invention, it is easy to automatically set the paper at the time of initial setting, so the operability is good.Also, during normal use, the paper is pulled out at the exit of the paper feed mechanism, so the paper can be easily set automatically. It has the effect of preventing clogging.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of a conventional paper feeding mechanism, FIGS. 2 to 4 are model diagrams of an embodiment of the present invention, and FIG. 2 is a preparatory stage,
FIG. 5 is a configuration diagram showing the initial automatic feeding state, and FIG. 4 is a configuration diagram showing the normal use state. DESCRIPTION OF SYMBOLS 1... Roll paper, 2... Roller, 2-1... Subroller, 2-2... Main roller, 3... Print head, 4... Platen, 5... Cutter part・ ６・・・Selector switch〇

Claims (1)

[Claims] 1. In a printer consisting of a mechanism for printing on roll paper and a mechanism for cutting the printed recording paper for each transaction,
A main roller for paper feeding, a sub-roller for initializing paper,
A printer paper feeding mechanism characterized in that a switch is provided for causing the main roller and the sub roller to operate in opposite phases.