JPH01145178A - Control of printing speed of printer - Google Patents

Abstract

PURPOSE:To provide the operator with a time interval for verifying whether a printer operates normally and relieve the operator from anxiety by providing a low-speed printing step for printing in a low-speed printing mode at a speed lower than that in a preset high-speed printing mode after the start of printing, and a high-speed printing step for thereafter switching the printing mode to the high-speed printing mode to print at a high speed. CONSTITUTION:At the time of starting printing, a printing paper is drawn-in by a center software supplied from a host apparatus or an manual operation of the operator, and is set to a head protruding position. Then, for several lines, printing is forcibly conducted in a low-speed mode determined by the average degree of mental composure of man. When N lines determined by the degree of mental composure are printed, the printing mode is switched to a preset high-speed printing mode. The switching is performed either automatically or by a setting switch on a console panel of a printer. After the switching, high-speed printing is conducted based on printing data sent outputted from the host apparatus or a line. When all printing data is completely printed, the printing paper is discharged by the center software or a manual operation of the operator, returning to a stand-by condition.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method for controlling the printing speed of a printer widely used as a hard copy device for information processing systems or communication terminals, and in particular to a method for controlling the printing speed of a high-speed serial printer. Regarding control method.

[Conventional technology] This type of serial printer has developed with the pursuit of high speed being the biggest technical challenge, especially with the improvement of the print head, and current serial printers have improved as well as improving the basic printing speed. For example, it is equipped with a double speed mode based on a method of thinning out the lateral dot density.

[Problems to be solved by the invention] In the above-mentioned development environment, when setting paper and starting printing, the operator who handles the device or system first has to make sure that the printer is operating normally mechanically. The act of checking whether the printing results are correct and whether the desired printing results are being obtained. Therefore, when printing is started in the high-speed printing mode that is set from the beginning as in the conventional method, there is a drawback that it gives psychological anxiety to the operator who is trying to confirm whether or not the printer is operating normally. This tendency is particularly noticeable in devices such as printers that involve mechanical operations and whose processing results are physically visible.

[Means for Solving the Problems] The present invention solves the above problems and provides a printing speed control method for a printer that controls the printing speed so that an operator can check whether the printer is operating normally. purpose.

In order to achieve the above object, the present invention provides a printing speed control method for a printer that prints on printing paper via a print head, in which after printing starts, a preset high-speed printing mode is selected. The present invention includes a low-speed printing step in which low-speed printing is performed in a low-speed printing mode, and a high-speed printing step in which, after the low-speed printing step, the printing mode is switched and high-speed printing is performed in the high-speed printing mode.

[Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a flow chart showing a printing speed control method for a printer according to an embodiment of the present invention.

In FIG. 1, when printing starts, the printing paper is sucked in and set at the cue position by the center software from the host device or by manual operation by the operator (step 10).
0). Next, printing begins on the printing paper based on the print data sent from the line or host device, but at this time, the first few lines are forced to print in a low-speed mode determined by the average psychological margin of humans. Do (step 101)
. Here, the psychological margin refers to the margin with which a person can sufficiently confirm whether the device is mechanically operating normally or whether the intended printing result is about to be obtained. The printing speed in the low-speed mode and the number of lines (printing amount) N to be printed in the low-speed mode are determined according to this psychological margin.

After starting printing in this way, printing is performed in low-speed printing mode and the line feed of the printing paper is repeated, and when the number of lines determined by the psychological margin is reached (step 102)
, switch to the preset high-speed printing mode (step 1)
03). This switching of the print mode is automatically performed by the center software or a setting switch (by the operator) on the printer's operation panel.

After switching to the high-speed printing mode, high-speed printing is performed based on the print data sent from the host device or line in the same way as described above, and when all print data has been printed (step 104), the center software or operator's manual operation The print paper is ejected and the printer enters a standby state (steps 105 and 106).

When the printing operation is performed again, the printing speed is similarly controlled from step 100 described above.

Note that the above control can be easily realized by, for example, a control circuit controlled by a microcomputer system.

[Effects of the Invention] As explained above, according to the present invention, in the printing speed control method of a printer that prints on printing paper via a print head, after printing starts, the printing speed is lower than the preset high-speed printing mode. There is a low-speed printing step in which the printer performs low-speed printing in the high-speed printing mode, and a high-speed printing step in which the printing mode is switched after the low-speed printing step and high-speed printing is performed in the high-speed printing mode. It is possible to give a gain interval, and it is effective in removing psychological anxiety.

[Brief explanation of the drawing]

FIG. 1 is a flow chart showing a printing speed control method for a printer according to an embodiment of the present invention.

Claims (1)

[Claims] A method for controlling the printing speed of a printer that prints on printing paper via a print head includes a low-speed printing step in which after printing starts, printing is performed at a low speed in a print mode lower than a preset high-speed printing mode; . A high-speed printing step of switching the printing mode and performing high-speed printing in the high-speed printing mode after the low-speed printing step.