JPH0584995A - Printer with cutter - Google Patents

Abstract

PURPOSE:To make both no-format paper and format paper acceptable by a method wherein after a label head is cut at an appropriate position in accordance with the type of set paper judged by a sensor, the paper is set to a printing start position. CONSTITUTION:Continuous paper wound on a roll is loaded on a printer. After the tip of the paper is clamped between the feed rolls 6, a paper set switch is depressed. Then, the rolls 6 are rotated forward and a paper feed action is started. A mark or the like on the paper P is detected by a sensor 1, and whether a negative pulse is detected is judged. If the mark or the like is detected, the counting of a paper feed amount is started. In the presence of the mark in the detection of the mark, the label head is fed to a cutter position and cut in accordance with a calculation from the detected mark position. On the other hand, if the mark is not found and the paper is already fed by a predetermined amount, the paper is fed back by a fixed amount and cut at the tip. After that, the paper is fed back to be set on a home position, and printing is started.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer with a cutter for positioning continuous paper (including adhesive paper decontaminated on a continuous backing paper) at a predetermined position and cutting at a desired position after printing.

[0002]

2. Description of the Related Art Unlabeled paper (continuous blank paper, etc.) that is appropriately printed from the leading end and cut at regular intervals and continuous label paper, and labels cut into a fixed shape are attached to a continuous backing sheet. Formatted paper (dust removal paper) or continuous paper that has a frame line for each page or an identification mark (home position mark) for each page printed on it. , It is sufficient to start printing after cutting the leading edge properly, but since the position to cut and the position to start printing are predetermined, the format paper should be fed to the label at an appropriate position. , The leading edge of the first printable label must be cut, and then the paper must be fed to the print start position before printing is started. This is done when the first home position mark is detected, and when printing is started, the first printed label, etc. will have an extra leading edge margin or irregular shape. However, since this is a defective label, this is an operation necessary for obtaining a predetermined margin for the first home position mark and making the first label a good product. As described above, depending on the type of paper, different control is required in the operation up to the start of the first printing. Therefore, in the conventional label printer with a cutter, only unformatted paper is used, or scraped adhesive paper or the like is used. There is a problem that it is inconvenient to use, because only format paper is used or only one is used.

[0003]

SUMMARY OF THE INVENTION According to the present invention, the label tip is cut at an appropriate position according to the type of the set paper, and the paper can be set at the home position (print start position). The purpose of the present invention is to provide a printer with a cutter that can be used for both unformatted paper and formatted paper.

[0004]

In a label printer with a cutter, a sensor for detecting a label edge on a format paper or a home position mark for each page, and the label edge or home position for feeding a fixed length of paper. A means for determining whether the paper set in the printer is unformatted paper or formatted paper depending on whether or not the mark is detected by the sensor, and the label edge or home detected when the paper is determined as the formatted paper. The control unit that feeds the cutting position on the leading end side of the printing area corresponding to the position mark to the cutter position, cuts the paper at the cutting position, sets the home position mark at a predetermined position after cutting, and starts printing. When it is judged to be format paper, back feed the paper,
Control to send the paper to the cutter position at a position that is a certain distance from the leading edge of the paper as the cutting position (label boundary position), cut the paper at the predetermined position, set the leading end to the predetermined position after cutting, and start printing And means.

[0005]

[Function] The paper is fed for a certain length, during which the home position detection sensor detects the home position mark or
Depending on whether or not the label edge of the adhesive paper is detected,
It is possible to determine whether the label paper is unformatted paper or formatted paper. The amount of paper to be fed for the determination is assumed to be the label length to be used or the paper length for one page, and a value larger by about 10 mm may be set. Alternatively, the input may be appropriately set from the outside. In any case, this makes it possible to determine the label paper. Since the operation program for the leading edge processing of the sheet can be selected according to the determined type of the sheet, the leading edge processing can be appropriately performed on the formatted paper and the unformatted paper without the user manually switching.

[0006]

FIG. 1 shows an embodiment of the present invention. In FIG. 1, P
Is a continuous strip of paper. 1 is a photoelectric sensor for detecting the edge of a label attached to the paper P or the printed home position mark, 2 is a thermal head, 3 is a platen roller, 4 is an ink ribbon take-up roll, and 5 is the paper P.
Is a cutter for cutting the sheet at a right angle to the sheet feeding direction, and 6 is a feed roll for feeding and backing the sheet P. The sensor 1 is of a transmitted light type and is composed of a light source and a light receiving element which are arranged with a sheet sandwiched between them. When the label edge or the home position mark passes between them, the output of this light receiving element sharply decreases. Therefore, if the output of the light receiving element is differentiated by the differentiating circuit 7 and the differential signal is read by the CPU 8, the time when the negative pulse signal appears in the differential signal is when the label edge or the home position mark is detected. Yes,
The negative pulse signal becomes a detection signal for the home position mark or the like. In response to this detection signal, the CPU 8 uses the drive signal of the drive motor 9 of the feed roll 6 for the paper feed amount from the home position mark or label edge (hereinafter simply referred to as mark) of the paper in the control operation described below. It is calculated based on the above, and is used for determining the type of paper, or the drive control of the drive motor 9 of the feed roll 6 is performed. Reference numeral 10 is a memory for storing the feed amount set by the operator.

FIG. 2 is a flow chart of the operation at the time of setting new paper, which is the gist of the present invention.
The paper setting operation before the printing of new continuous paper is started will be described. The paper feed amount used for determining the paper type is stored in the memory 10 in advance. The continuous paper wound on the roll is loaded into the printer, and the leading end is the field roll 6
When the paper set switch is pressed after the paper has been bitten into the feed roll 6, the feed roll 6 is driven to rotate in the forward direction to start feeding the paper (A). The sensor 1 detects a mark or the like (negative pulse signal) on the paper P (a). It is judged whether a negative pulse signal is detected (C), and if a mark is detected,
Start counting the paper feed amount (d). Detect marks etc. (e). It is judged whether there is a mark or the like (f), and if there is a mark, it is calculated from the detected position of the mark, the label tip (cut position) is fed to the cutter position, and cut (ki). If the mark is not found, it is judged whether or not the paper feed amount reaches the set value (H), and if the paper is not fed up to the set value, the process returns to the operation (E) and mark detection is performed. If the paper has been fed up to the set value, a certain amount of back feed is performed, and then the leading edge is cut (f). After that, the paper is back-fed and set at the home position (printing start position) (K), and printing is started (K).
The above is the initial operation according to the present invention up to the start of printing. After printing is started, every time one page or one label is printed, the leading edge of the next page or label is sent to the cutter position, the printed portion is cut off, and the leading edge of the paper or label is set to the home position. Return and perform the next print.

[0007]

According to the present invention, the type of the set paper can be determined, the leading end of the label is cut at an appropriate position according to the set paper, and the paper is placed at the home position (print start position). By being able to set, the range of use has expanded further.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a flowchart of a paper setting operation in the above embodiment.

[Explanation of symbols]

 P Paper 1 Sensor 2 Thermal head 3 Platen roll 4 Ribbon winding roll 5 Cutter 6 Feed roll

Claims (1)

[Claims] 1. A sensor for detecting a label edge or a home position mark for each page on a format paper, and whether or not the label edge or the home position mark is detected by the sensor while the paper is fed for a certain length. Depending on whether or not the paper set in the printer is unformatted paper or formatted paper, and when it is judged to be formatted paper, the leading edge side of the print area corresponding to the detected label edge or home position mark. Send the cutting position to the cutter position, cut the paper at the cutting position, set the home position mark at a predetermined position after cutting, and start the printing, and control the paper when it is judged as unformatted paper. Backfeed and set a position that is a certain distance from the leading edge of the paper as the cut position (label boundary position). And the paper feed to the cutter position,
A printer with a cutter, comprising: a control unit that cuts a sheet at a predetermined position, sets the front end portion at a predetermined position after cutting, and starts printing.