JPH04358860A - Manual printer - Google Patents

Abstract

PURPOSE:To minimize the dispersion of printing speed with manual operation by displaying printing speed on a display unit in a manual type printer. CONSTITUTION:The quantity of revolution is converted into a pulse-shaped electric signal through a driving roller 2, a gear row 3, an encoder 4 and a photo-interruptor 5 on printing. The signal is arithmetically processed by a CPU 6, and output to a movement display section 8 a printing speed data, and printing speed can be confirmed visually.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual printing device equipped with a display section for displaying the amount of movement.

0002

2. Description of the Related Art In recent years, manual printing devices have become widespread. Recently, small manual printing devices equipped with an input device and capable of printing on a wide variety of sheets of paper have become popular.

FIG. 3 shows a conventional manual printing device below.
This will be explained with reference to. As shown in the figure, the drive roller 11 transmits the amount of rotation to the encoder 13 via the gear train 12. The encoder 13 is provided with a slit, and the slit is interposed between the light emitting part and the light receiving part of the photointerrupter 14, and the light from the photointerrupter 14 is blocked as the encoder 13 rotates, thereby controlling the amount of rotation. Converts into a pulsed electrical signal. Further, the CPU 16 synchronizes the data transferred from the memory 15 with the signal from the photointerrupter 14, transfers the data to the head 17, prints it, and displays it on the display unit 18.

0004

[Problems to be Solved by the Invention] However, in the above-mentioned conventional configuration, the printing speed is not displayed on the display section 18, so the printing speed cannot be kept constant. There was a problem that the CPU processing could not be done in time, resulting in skipped dots.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a manual printing device that can eliminate printing unevenness.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the manual printing device of the present invention includes an encoder that outputs the amount of movement of the main body of the manual printing device, and prints in synchronization with the output signal of this encoder. The apparatus is configured to include a print head that performs output, a calculation means that calculates the amount of movement of the main body of the manual printing apparatus based on the output signal of the encoder, and a movement amount display section that displays the calculated amount of movement.

[0007]

[Operation] When printing, the manual printing device of the present invention configured as described above converts the amount of movement into a pulsed electrical signal via an encoder and a photointerrupter, calculates the printing speed using the CPU, and displays the printing speed on the display. By displaying , the optimal printing speed can be visually confirmed, so printing can be performed without uneven printing or skipped dots.

[0008]

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. As shown in the figure, when the main body 1 of the manual printing device moves, the drive roller 2
An encoder 4 driven through a gear train 3, and a photointerrupter 5 that converts the amount of rotation of the encoder 4 into a pulsed electrical signal are provided. The signal from the photointerrupter 5 is then processed by the CPU 6 and transferred to the movement amount display section 8 of the display section 7 as printing speed data. Also, the data to be printed is transferred from the memory 9 to the CPU 6.
The data is transferred to the head 10 and printed in synchronization with the signal from the photointerrupter 5.

The movement amount display section 8 is composed of a plurality of display windows, and when the printing speed based on the printing speed data processed by the CPU is the most appropriate, the movement amount display section 8 is displayed.
is displayed from the central display window as shown in FIG. 2(a), when the printing speed is fast and the amount of movement of the main body 1 is large, the display is shown as shown in FIG. 2(b), and when the amount of movement is small, the image is displayed. 2(c).

[0010] Therefore, the user can determine the printing speed simply by visually observing the position of the display on the movement amount display section 8, and can easily adjust the printing speed.

[0011]

Effects of the Invention As is clear from the above embodiments, since the amount of movement of the manual printing device is displayed on the visible movement amount display section, the user can easily determine the printing speed. This makes it possible to provide a manual printing device that eliminates printing unevenness and the problem of dot skipping occurring due to the CPU not being able to process in time due to high printing speed.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing the configuration of a manual printing device according to an embodiment of the present invention.

[Figure 2] (a) Front view of the display section showing the display when the same printing speed is the most appropriate (b) Front view of the display section showing the display when the same printing speed is fast (c) The same printing speed is slow Front view of the display section showing the time display

[Fig. 3] Schematic diagram showing the configuration of a conventional manual printing device

[Explanation of symbols]

1 Manual printing device main body 4 Encoder 6 CPU 8. Movement amount display section 9. Memory 10 Print head

Claims (1)

[Claims] 1. An encoder that outputs the amount of movement of the main body of the manual printing device; a print head that outputs print in synchronization with the output signal of the encoder; and an encoder that outputs the movement amount of the main body of the manual printing device; A manual printing device comprising a calculation means for calculating a movement amount and a movement amount display section for displaying the movement amount calculated by the calculation means.