JPS5913466A - Printer - Google Patents

Abstract

PURPOSE:To improve the efficiency of the movement of a printing head and to speed up printing in a printer to be used for the hard copying of character pattern information received through a subscriber's telephone line and reproduced by a television receiver, by scanning the 1st line of the 1st picture and then scanning the 1st line of the 2nd picture to print out the 1st and 2nd pictures in parallel. CONSTITUTION:When a hard copying is required, a microprocessor reads out data stored in a multipage memory of an I/O interface in the sequence of MP1l1, MP2l1, MP2l2, MP1l2, MP1l3, MP2l3..., supplied to a printer through a data buffer and printed out by moving a printing head as shown in the figure. Namely, the 1st line l1 of the 1st picture P1 is scanned and printed out, the 2nd line l2 of the 2nd picture P2 is scanned and printed out and then the 2nd line l2 of the 1st picture P1 is scanned and printed out. Thereafter, the printing head scans the lines to print out pictures in the same manner.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention utilizes a television receiver and a telephone to transmit character and graphic information reproduced by the television receiver through a subscriber telephone line. The present invention relates to a printer suitable for use in copying images.

Background technology and its problems Currently, all information such as news, immediate information such as weather forecasts, learning programs, quizzes, individual interactive information such as Gu6, limited information such as business information, and email services, etc. A so-called text and graphic information system is being considered. As a terminal device for this character/graphic information system, a device as shown in FIG. 1 has been proposed.

That is, in Fig. 1, (1) indicates a modem, which performs predetermined modulation on the signal to be transmitted so that it can easily pass through the subscriber telephone line, which is the transmission path, and A predetermined demodulation is performed on a received signal obtained from a telephone line and subjected to a predetermined modulation.

The terminal device side of this modem (1) is connected to a microprocessor (3) that performs control and signal processing via an input/output interface (2), and this input/output interface (
2) and the microprocessor (3) are connected to a read-only memory (which stores system programs, etc.).
4), a random access memory (5) for storing received signals, and an input/output interface (6) for connecting external input/output devices, and a key is connected to this input/output interface (6). The date (7) is connected to a television receiver (8) and a printer such as a dot matrix printer (9).In this case, the input/output interface (6) can process signals from the keypad by the microprocessor (3). convert it into a signal, and
The signals processed by the microprocessor (3) are converted into video signals that can be displayed on the television receiver (8), and the screen displayed on the television receiver (8) is sent to the printer (9). It has the function of making it possible to make a hard copy.

According to such a configuration, a signal obtained through the subscriber telephone line is demodulated by the modem (1), and this demodulated signal is supplied to the microprocessor (<3) via the input/output interface (2). , read-only memory (4)
After various signal processing is performed according to the system program stored in the system program, the signals are sequentially written to the random access memory (5), and the signals written to the random access memory (5) are inputted while their time axis is corrected. The signal is supplied to an output interface (6), converted into a υ video signal by this input/output interface (6), and this video signal is displayed on a television receiver (8). When the user wishes to copy the information displayed on the television receiver (8), the user may input the request using the keypad (7). That is,
Signals from the keyboard (7) are supplied to the microprocessor (3) via the input/output ink-7 ace (6);
The input/output interface (6) operates according to signals from the microprocessor (3), and the printer (
9) works.

In this case, the input/output interface 71 ace (6) has a built-in memory called multi-page memory in addition to the video ram video RkM for obtaining video signals.
As shown in Fig. 2, this multi-page memory has 14 screens, based on one screen of the television receiver 8) (hereinafter, one screen of this television receiver 8 is referred to as one page). That is, it has a storage capacity for storing 14-<part of data. When the user requests a hard copy of the image displayed on the television receiver (8), the data corresponding to this image is sent to the multi-taker.
・The first page of this multi-page memory
The stored data is sequentially read out from the first line t1 of the page MPI, and the read data is supplied to the printer (9) and printed by this printer (9). That is, in this printer (9), the third
As shown in the figure, the first screen P1 to be printed and the second screen P2 following this first screen P1 are lined up horizontally on a sheet of paper, for example, A4 size paper, and the following 14 sheets are printed in order. You can print continuously up to the screen.

However, in this printer screen 9), as shown in FIG. 3, the first line t1, the second line t2, and
When the printing of this first screen P1 is completed, the first line t1 of the second screen P2 is scanned and printed.
, second line t2, etc., it takes time to feed the print head between printing the first screen P1 and starting printing the second screen P2, and therefore However, the disadvantage was that the printing speed was slow.

OBJECTS OF THE INVENTION In view of the above, it is an object of the present invention to propose a printer in which the efficiency of print head movement is improved and cylinders can be moved at a higher speed.

Summary of the Invention The present invention provides a printer that prints first and second screens horizontally, scanning the first line of the first screen and then scanning the first line of the second screen. In this way, the first and second screens are printed in parallel, and the efficiency of the movement of the print head is improved, making it possible to print at a much higher speed.

Embodiment Hereinafter, one embodiment of the printer of the present invention will be described with reference to FIGS. 4 and 5.

In addition, in FIGS. 4 and 5, parts corresponding to those in FIGS. 2 and 3 are designated by the same reference numerals, and detailed explanation thereof will be omitted.

In this example, the input/output interface (6) is provided with a data buffer having a storage capacity to store data for 22 inches of multi-page memory.

In this case, data from the multi-page memory is supplied to the data buffer, and data from the data buffer is supplied to the printer.

In addition, the 111 sequence for reading data from the multi-page memory of the input/output interface 7 ace (6) is as shown in FIG. page MP
I and MP2 lines t1, t2, . . . , An
The following pages MP13 and MP1 are read out alternately and sequentially.
4 Do the same reading with t. The rest of the structure is the same as before.

According to this configuration, when a hard copy is requested by the user, the data stored in the multi-page memory of the input/output interface (6) by the microprocessor (3) is converted to MPltI-MP2t1-MP2t2-M.
The data is read out in the order of PIt2-MPIt3-MP2t3-..., and is supplied to the printer (9) via the data buffer, where the print head moves as shown in Figure 5. and then printed. That is, after scanning and printing the first line t1 of the first screen P1, scanning and printing the first line t1 of the second screen P2, and then scanning and printing the second line t1 of the second screen P2.
2 is scanned and printed, the second line t2 of the first screen circle is scanned and printed, and the print head is scanned and printed in the same manner. In this way, the screens P1 and P2, P3 and P4, etc. that are printed horizontally are printed in parallel, and as in the past, for example, the first screen P
There is no need for time-consuming feeding of the print head between the end of printing the first screen and the start of printing the second screen P2, and by improving the efficiency of print head movement, printing can be performed at higher speeds. can do.

As described above, according to the printer of this example, by printing the screens that are printed horizontally, for example, Pl and P2 in parallel, it is possible to improve the efficiency of the movement of the print head, and to achieve higher speeds. Can be printed.

In the above-mentioned embodiments, the case where printing is performed in each of the forward and backward paths of the print head has been described, but it goes without saying that the present invention can be similarly applied to a case in which printing is performed only in the forward path. Further, it goes without saying that the present invention is not limited to the above-described embodiments, and can take various other configurations without departing from the gist of the present invention.

Effects of the Invention According to the printer of the present invention, by printing horizontally arranged screens in parallel, the efficiency of print head movement can be improved and printing can be performed at higher speed. I can do it.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an example of a terminal device for a character and graphic information system, Fig. 2 is a diagram for explaining a multi-base memory, Fig. 3 is a diagram for explaining a conventional printer, and Fig. 4 is a diagram for explaining a conventional printer.
The figure is a diagram for explaining the printer of the present invention, and FIG. 5 is a diagram for explaining the scanning of the print head of the printer of the present invention. (3) a microprocessor; (6) an input/output interface; (8) a television receiver; and (9) a printer. Figure 2 Figure 4 Figure 3

Claims (1)

[Claims] In a printer that prints first and second screens horizontally side by side, the first line of the first screen is scanned, and then the first line of the second screen is scanned. 1 and the above-mentioned second screen in parallel.