JPH0274372A - Printer - Google Patents

Abstract

PURPOSE:To print at a position immediately after a cutting position by feeding and cutting a continuous sheet according to a feeding distance calculated from a fixed length determined by the length of the sheet, the final printing position and a printer, and then reversibly feeding it at the same feeding distance. CONSTITUTION:A length (a) from the head position 12A of a page to a final printing position 13 is fed from a sheet feeding distance detection counter 7 to calculating means 4, the feeding distance (d) of a continuous sheet 1 when a printed sheet is cut is calculated with the length (a), a sheet length l set in sheet length setting means 6, and a fixed value (m) set to fixed value storage means 8, and the sheet is fed to cutting position feeding means 10. When the means 10 feeds the distance (d) and a normal rotation signal to sheet feed control means 3, the means 3 drives a sheet feeding motor 5 through a motor driver 8 to feed the sheet 1 at the distance (d), and sheet cutting means 27 cuts the sheet 1. Then, the means 3 reversibly rotates the motor 5 to return the sheet 1 to the position of printing means.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is applicable to printers used in computers, etc.
In particular, it concerns the feeding of continuous paper.

[Prior Art] FIGS. 4 and 5 are block diagrams showing paper feeding mechanisms of printers used in computers, etc., and FIG.
This is a paper pushing type printer in which continuous paper 1 with folds for each page is pushed in by a tractor 21, and FIG. 5 shows a horizontal type printer in which continuous paper 1 is fed by feed rollers 31 and 32.

In the paper push type printer shown in Fig. 4, when the continuous paper 1 is set on the tractor 21 and the "paper load" switch on the operation panel is pressed, the motor (not shown) moves the tractor 21, sprocket 22, and platen. By rotating 23, the continuous paper 1 having sprocket holes is sent to the printing position 24. Print head 24
The print head 24 performs predetermined printing on the continuous paper 1 sent to the position. The printed continuous paper 1 is sent out of the cover 26 through a paper cutting means 27 provided at the end of the cover 26 while being pressed by a presser lever 25 so as not to bulge or sag.

When printing of the continuous paper 1 is finished and the continuous paper 1 is to be cut at the perforation provided on the fold immediately after the last line, the fold of the continuous paper 1 is sent to the cutting position of the paper cutting means 27, and the continuous paper 1 is cut out.

Also, in the horizontal type printer shown in FIG. 5, the feed roller 31. , 32 while printing with the print head 24, the continuous paper is sent out of the cover 26 through the paper cutting means 27. When the printing is completed, the continuous paper 1 is sent to the end position corresponding to one page to the paper cutting means 27, and the continuous paper 1 is cut by the paper cutting means 27.

Therefore, in the printer shown in FIGS. 4 and 5, the continuous paper 1 can be cut immediately after the final printing position.

[Problems to be Solved by the Invention] In the printer configured as described above, when cutting the printed continuous paper 1, the cutting position immediately after the final printing position of the continuous paper 1 is moved from the print head 24 to the paper. It was necessary to feed it by a length corresponding to the distance to the cutting means 27 and then cut it.

However, since the presser lever 25 or the feed roller 32 is provided between the print head 24 and the paper cut means 27, and the print head 24 itself has a certain size, the print head 24 and the paper cut means 27 are It was not possible to shorten the distance between them.

Therefore, from the cutting position of the continuous paper 1 to the print head 24
The length up to
There was a problem in that it was not possible to print immediately from the cutting position, and continuous paper could not be used for growth purposes.

The present invention was made to solve this problem, and an object of the present invention is to provide a printer that can print from immediately after the cutting position of continuous paper.

[Means for Solving the Problems] A printer according to the present invention includes a paper length setting unit that sets the paper length of one page of continuous paper, and a paper length setting unit that detects the paper feed amount from the top position of page 6 to the printing end position. , a paper feed amount detecting means for storing, a fixed value storing means for storing a fixed value determined by the distance from the printing means to the paper cutting means, a calculating means and a paper cutting position sending means.

The calculation means calculates the difference between the paper length set in the paper length setting means and the paper feed amount detected by the paper feed amount detection means, and further adds the calculated value to the fixed value stored in the fixed value storage means. Calculate the feed amount of continuous paper from the final printing position. The paper cutting position feeding means receives the paper cutting signal, feeds the continuous paper by the feed amount calculated by the calculation means, cuts the paper with the paper cutting means, and then reversely feeds the remaining continuous paper to the position of the printing means. .

[Operation] In this invention, the paper feed amount when cutting the paper is calculated from the paper length of one page of continuous paper, the final print position, and a fixed length determined by the printer, the continuous paper is fed and cut using this feed amount, and then the same paper is cut. By reversing the paper by the feed amount, the cutting position of the continuous paper is returned to the position of the printing means.

Embodiment FIG. 1 is a block diagram showing a control system of a printer according to an embodiment of this invention. The paper feeding mechanism of the printer used in this embodiment is exactly the same as that shown in FIG.

In FIG. 1, reference numeral 2 indicates a paper feed total specifying means for specifying the paper feed amount when printing continuous paper 1 having creases for each page, and 3 indicates a paper feed amount specified by the paper feed total specifying means 2. A paper feed control means 4 for controlling feeding is a motor driver that drives a paper feed motor 5 based on a control amount sent from the paper feed control means 3.

6 is a paper length setting means, and the paper length setting means 6 has a paper length g, which is the length between the folds 12A and 12B of the continuous paper 1, as shown in a plan view of the continuous paper 1 in FIG. 2, which will be described later. is set. 7 is a paper feed amount detection counter, and the paper feed amount detection counter 7 receives the paper feed amount for each printing line output from the paper feed control means 3, and calculates the paper feed amount from the leading edge position of page 6 of the continuous paper 1 to the final printing position. Calculate the length a up to 13.

8 is a fixed value storage means, and the fixed value storage means 8 is a fourth
In the figure, a fixed value m is stored for the printer, which is determined by the distance from the print head 24 to the paper cutting means 27. 9
is an arithmetic circuit, and the arithmetic means 9 receives signals from the paper feed amount detection counter 7, the paper length setting means 6, and the fixed value storage means 8, and calculates the continuous paper 1 when cutting the printed paper.
The paper feed amount d is calculated. Reference numeral 10 denotes a paper cutting position feeding means, and the paper cutting position feeding means lO receives the paper feeding Qd calculated by the calculation means 9 and a signal sent from the paper load switch 11, and sends a forward rotation/reverse rotation signal to the paper feeding control means 3. send.

2 and 3 are plan views of the continuous paper 1. FIG.

The operation of the printer configured as described above will be explained with reference to the continuous paper 1 shown in FIGS. 2 and 3.

First, before starting the printing operation by the printer, the paper length g of the continuous paper 1 to be used is set in the paper length setting means 6.

Further, the fixed value storage means 8 also stores a fixed value m unique to the printer, such as the distance between the paper cutting means 27 and the printing means.

In this state, the paper feed control means 3 drives the paper feed motor 9 to start printing while feeding the continuous paper 1 to the print head 24. At this time, the paper feed control means 3 sends the paper feed amount for each printing line to the paper feed amount detection counter 7. The paper feed amount detection counter 7 calculates the paper feed amount for each line fed, and calculates the length from the top position of the page being printed, that is, the fold position 12 of the continuous paper 1 to the current printing position. calculate. This calculated length is sent to calculation means 9 and compared with paper length g set in paper length setting means 6.

When the length calculated by the paper feed amount detection counter 7 matches the paper length g, that is, when the printing of the first page of the continuous paper 1 is completed, the calculation means 9 sends a reset signal to the paper feed amount detection counter 7, and the paper feed is started. The amount detection counter 7 is reset.

The paper feed amount detection counter 7 subsequently calculates the length of the continuous paper 1 from the fold position 12^ to the printing position and sends it to the calculation means 4.

When printing is completed here, the paper feed control means 3 stops driving the paper feed motor 5, and stops feeding the continuous paper 1. At this time, the paper feed amount detection counter 7 sends the length a from the leading position 12A of the page to the final printing position 13 to the calculation means 4. The calculation means 4 uses the length a sent from the paper feed amount detection counter 7, the paper length g set in the paper length setting means 6, and the fixed value m set in the fixed value storage means 8. , the paper feed md of the continuous paper 1 when cutting the printed paper is calculated by the following equation and sent to the paper cutting position feeding means IO.

d-m+ (fI-a) - (1) That is, from the paper length g and the length a to the final printing position 13, the length from the final printing position to the next fold 12B, which is the cutout part, was calculated. By adding the fixed value m to the value, the length d from the position of the next fold line 12B to the paper cutting means 27 is calculated.

If the operator wants to cut the continuous paper 1 after printing is completed as described above, the operator should press the paper load switch 1.
By operating 1, a cutting signal is sent to the paper cutting position sending means lO.

When the paper cutting position sending means IO receives the cutting signal, it sends the paper feeding amount d and a normal rotation signal to the paper feeding control means 3.

When the paper feed control means 3 receives the paper feed amount d and the normal rotation signal, it drives the paper feed motor 5 via the motor driver 8.
As shown in FIG. 3, the continuous paper 1 is fed by a predetermined distance ff1d, and the position of the fold line 12B is aligned with the position of the paper cutting means 27. Thereafter, when the continuous paper 1 is cut by the paper cutting means 27 and the paper load switch ti is operated again, a restart signal is sent to the paper cutting position sending means 1o. When the paper cutting position feeding means 10 receives the restart signal, it changes to the fixed value m.
and a reverse rotation signal to the paper feed control means 3. The paper feed control means 3 reverses the paper feed motor 5 according to the sent signal to return the continuous paper 1 to the position of the printing means.

Since the continuous paper 1 has returned to the position of the printing means, when printing is to be performed again thereafter, printing can be performed from immediately near the leading position 12B of the continuous paper 1.

Note that in the above embodiment, the paper cutting position feeding means 10
The case where the cut signal and restart signal are sent from the paper load switch 11 has been explained, but the paper load switch 11
Instead, a timer is used to send the cut signal and restart signal after a certain period of time has passed since the data to be printed is interrupted.
Continuous paper may be automatically fed and returned.

Further, although the above embodiment has been described using the paper push-type printer shown in FIG. 4, it can be similarly applied to the horizontal type printer shown in FIG. 5.

[Effects of the Invention] As explained above, the present invention calculates the paper feed amount when cutting the paper from the paper length of one page of continuous paper, the final print position, and the fixed length determined by the printer, and uses this feed amount to cut the continuous paper. By feeding the continuous paper, cutting it, and then refeeding it the same amount in reverse, the cutting position of the continuous paper is returned to the position of the printing means, so printing can be performed immediately from the cutting position of the continuous paper, making effective use of the paper. It has the effect of being able to.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, FIGS. 2 and 3 are plan views showing continuous paper of the above embodiment, respectively.
FIGS. 4 and 5 are configuration diagrams showing the paper feeding mechanism of the printer, respectively. 6...Paper length setting means, 7...Paper feed amount detection counter, 8...Fixed value storage means, 9...Calculating means, IO
...Paper cutting position feeding means. Agent Patent Attorney Toshiaki Suzuki

Claims (1)

[Scope of Claims] A printer in which a printing unit prints on continuous paper fed by a paper feeding unit, and then the continuous paper is cut out by a paper cutting unit, comprising: a paper length setting unit for setting the paper length of one page of the continuous paper; , a paper feed amount detection means for detecting and storing the paper feed amount from the beginning position of each page to the printing end position, and a fixed value storage means for storing a fixed value determined by the distance from the printing means to the paper cutting means; A calculation that calculates the difference between the paper length set in the paper length setting means and the paper feed amount detected by the paper feed amount detection means, and further adds the calculated value to the fixed value stored in the fixed value storage means. and a paper cutting position for feeding the continuous paper by the length calculated by the calculation means in response to the paper cutting signal, and feeding the remaining continuous paper backwards to the position of the printing means after the continuous paper is cut by the paper cutting means. A printer characterized in that it is equipped with a feeding means.