JPH0316743A - Printing system in impact printer - Google Patents

Abstract

PURPOSE:To enable an operator to select a low-noise printing, as necessary, by a method wherein a printing speed can be changed over by a switch. CONSTITUTION:A control part 2 selects a normal printing speed 3 and a low- noise printing speed 4 using a switch 1 and issues a control instruction. Namely, by making a printing speed selectable by the change-over of the switch, the need for changing an existing program is eliminated, and an operator can accordingly and selectively change the printing speed regardless of before or during printing, as necessary. Alternatively, the printing speed can be changed over stepwise in several steps, as necessary.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printing method in an impact printer, and particularly to a printing speed switching method for reducing noise. [Prior Art] Impact printers generate noise due to the impact movement of the printing pins during printing.

[Problem to be solved by the invention]

Although noise generation is an unavoidable problem in impact printers due to their structure, lower noise has now become an essential condition as demand increases and usage environments become more diverse.

[Means to solve the problem]

In the present invention, by taking advantage of the fact that the noise level can be lowered by lowering the printing speed, the user can control the printing speed provided in the control unit by operating a switch provided in the device as necessary. The feature is that the circuit can be switched either before or during printing.

That is, in the present invention, the impact printer has a normal printing speed and a low printing speed, and by making it possible to switch between the two printing speeds with a switch or a switch, the user can print at a low noise level 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, the control unit 2 selects a normal printing speed 3 and a low printing speed 4 using switches 1,
Send control commands. That is, according to the present invention, by making it possible to select the printing speed by changing the switch, the user can change the selection at any time as necessary, whether before or during printing, without having to change the existing program. Become. In this embodiment, the printing speed is limited to two stages, but it is also possible to change the printing speed in several stages as necessary.

〔Effect of the invention〕

As explained above, the present invention allows the printing speed to be selected from two or more levels using a switch, so that the user can print at the right time without having to change to low-noise printing during printing or change existing programs. This has the effect of allowing you to select the speed.

writing speed, 4...Low printing speed.

Claims (1)

[Claims] A printing method for an impact printer, characterized in that the impact printer has a circuit that can control printing density in at least two levels or more, and the printing speed can be changed by a switch.