JPH037361A - Printing method of dot impact printer - Google Patents

Abstract

PURPOSE:To change the printing method to a low noise printing method during printing or to select a printing method at a suitable time without changing the existing program by making two or more kinds of the printing methods selectable by a switch. CONSTITUTION:A control part 2 selects a normal printing method 3 and a low-noise printing method 4 by a switch 1, with generating a controlling instruction. According to the normal printing method 3, that is, in the conventional method, each row of groups of printing wires 5, 6 is actuated to print at the normal printing speed. On the other hand, according to the low-noise printing method 4, the groups of the printing wires 5, 6 are alternately driven at low speeds. In other words, it is made possible to select the combination of the number of printing pins simultaneously driven and the printing speed through manipulation of the switch. Accordingly, the printing method can be selected and switched without changing the existing program in accordance with the requirement of the user before printing or during printing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printing method in a dot impact printer, and particularly to a printing method switching method for reducing noise.

[Conventional technology]

Dot impact printers generate noise when printing due to the impact movement of the printing pins.

[Problem to be solved by the invention]

In dot impact printers, the generation of noise is an unavoidable problem due to their structure, but with the increasing demand and diversification of usage environments, lower noise has now become an essential condition.

[Means to solve the problem]

The present invention takes advantage of the fact that the noise level can be lowered by reducing the number of simultaneous printing bins and lowering the printing speed, and by operating the switch provided on the device as necessary for use. Accordingly, the control circuit for the number of simultaneous printing bins and the printing speed provided in the control unit can be switched either before or during printing.

That is, in the present invention, the dot impact printer has a normal printing method and a low-noise printing method, and by making it possible to switch between the two printing methods with a switch, the user can use the low-noise printing method as needed. Printing can be selected.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

In FIG. 1 showing an embodiment of the present invention, a control section 2 selects a normal printing method 3 and a low noise printing method 4 using a switch 1, and sends a control command. Normal printing method 3. An embodiment of the low noise printing method 4 will be described with reference to FIG.

Normal printing method 3 is a conventional method in which the printing wire groups 5 and 6 of each row are printed at the normal printing speed at the same time in all bins, and in low noise printing method 4, either printing wire group 5 or printing wire group 6 is printed at the same time. To print groups of wires alternately and at low speed.

Although the above explanation is for a dot serial printer, it goes without saying that a dot line printer can also be used by selecting and switching the number of simultaneous printing pins and printing speed. In other words, according to the present invention, by making it possible to select the combination of the number of simultaneous printing pins and the printing speed by changing a switch, it is possible to change the number of simultaneous printing pins and the printing speed according to the user's needs before or during printing, without having to change the existing program. Therefore, it becomes possible to switch the selection in a timely manner.

In this embodiment, the printing method, that is, the combination of the number of simultaneous printing pins and the printing speed is limited to two stages and explained, but it is also possible to switch the combinations in several stages in the same way.

〔Effect of the invention〕

As explained above, the present invention enables the selection of two or more printing methods using a switch, which allows the user to change the printing method at the appropriate time without changing to a low-noise method during printing or without changing an existing program. It has the effect of giving you a choice.

[Brief explanation of the drawing]

FIG. 1 is a block diagram partially showing an embodiment of the present invention;
FIG. 2 is a diagram showing a printed wire. 1...Switch, 2...Control unit, 3.
...Normal printing, 4...Low noise printing, 5.
...Printed wire group, 6...Printed wire group.

Claims (1)

[Claims] A dot impact printer having a circuit capable of controlling the combination of the number of simultaneous printing pins and the printing speed in at least two stages, characterized in that the combination of the number of simultaneous printing pins and the printing speed can be changed by a switch. printing method.