JPH11309912A - Method for precut process for printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a precut method which realizes an appropriate precut in accordance with a paper kind or a paper size in a printer using a roll paper, particularly meets different sizes in a printer of a type in which a print direction is orthogonal to a paper discharge direction. SOLUTION: When a roll paper 20 is set to a printer, the paper is automatically transferred by a predetermined amount and a positioning marker 58 formed on the paper is detected. Based on the detection of the marker 58, a paper kind and a paper size are automatically judged, and at the same time, a transfer amount from a leading end of the paper to a first reference marker 58 is detected, so that a cut amount (x) of a leading end part of the paper is determined. When the cut amount is larger than a size of a paper discharge opening (corresponding to an A6 size), in order to cut a paper piece of a size disposable from the paper discharge opening, a paper piece of an amount x1 is cut and then a paper piece of an amount x2 (=A6 size) is cut, whereby the leading end part of the paper of the cut amount is removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pre-cut processing method for a printer, and more particularly to an operation (pre-cut) sequence for cutting off an unnecessary leading end of a sheet when a sheet is set in the printer after a jam processing.

[0002]

2. Description of the Related Art In general, printers are classified into a type using single-sheet paper (cut paper) and a type using continuous paper (roll paper). In the latter type, continuous paper wound in a roll is loaded into the printer body, the continuous paper is conveyed to a printing / printing unit by a conveying unit, and printing is performed. (For example, A
5 size, A6 size, etc.). Further, among printers using roll paper, for example, a printer that is devised so as to be compatible with both paper sizes of A5 size and A6 size is also known.

In such a printer using roll paper, paper jam (so-called jam) due to defective feeding or the like.
Occurs, the user needs to cut the continuous paper at an appropriate position using scissors or the like, take out the jammed paper, and then set the paper again in the printer.
When the paper is set in the printer by such an operation or the like, the printer trims the leading edge of the paper excessively in order to arrange the leading edge of the paper in a predetermined printable state (hereinafter, such a truncation process will be referred to in this specification. In many cases, pre-cut processing is performed). The pieces of paper cut by the pre-cut process are discharged from a predetermined discharge port by a discharge device.

[0004]

However, in a conventional printer capable of supporting different sizes, a paper feeding direction (printing direction) at the time of printing and a paper discharging direction after cutting (paper discharging direction) are the same. Thus, there is no printer that discharges paper in a direction perpendicular to the printing direction. The pre-cut amount depends on the position and state of the paper cut by the user in the jam processing or the like, and differs depending on the size of the roll paper used. In the case where the paper direction is the same, if the size of the paper discharge port is formed in accordance with the width of the paper, it is possible to discharge paper sheets of any size.

However, considering the situation in which the operator is operating toward the printer, the paper on which printing has been completed is placed on the operating side of the operator (ie, in front of the printer).
Is preferable. Therefore, there is a demand for a printer that transports paper to a printing unit from the lateral direction of the printer, prints the paper, and then discharges the cut paper to the near side.

In such a type of printer in which the printing direction and the paper discharge direction are orthogonal to each other, when considering compatibility with different sizes, even if the size of the paper discharge port is determined according to the specified paper size, However, there is a problem that a large pre-cut amount of the paper piece cannot be discharged from the paper discharge port because the size of the paper piece cut off by the pre-cut is arbitrary. Also,
Although it is conceivable to design the paper ejection system in accordance with the maximum value of the paper piece cut off by the pre-cut, it is conceivable that the apparatus becomes large in size.

[0007] On the other hand, if the cut-out piece of paper cut by the pre-cut is too small, there is a problem that the piece of paper cannot be discharged to the outside by a discharge means such as a discharge roller.
The present invention has been made in view of such circumstances, and realizes an appropriate pre-cut according to the paper size and the type of paper.In particular, a printer of a type in which the printing direction and the paper discharging direction are orthogonal to each other can handle different sizes. It is an object to provide a pre-cut method that makes it possible.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a precut processing method for removing the leading end of a sheet prior to the start of printing in a printer using continuous paper as recording paper. Use continuous paper in which positioning markers having a fixed positional relationship with the cutting position for cutting to a predetermined paper size are formed periodically along the longitudinal direction of the paper, and the continuous paper is transferred to the printer body. After setting, the sheet is conveyed by a predetermined amount by the conveying unit, and the arrival of the positioning marker is monitored by the marker detecting unit during the conveyance, and at least the type or size of the sheet is grasped based on the detection of the positioning marker. At the same time, the transport amount from the leading edge of the paper to the first positioning marker is detected, and the leading edge of the paper is cut based on the detected transport amount. The cutout amount is obtained, and the magnitude relationship between the obtained cutout amount and a predetermined value corresponding to the size of the discharge port is compared. If it is determined that the cutout amount is larger than the predetermined value, the discharge port is determined. The cutting process is performed at least two or more times to cut out a piece of paper that can be ejected from the printer, thereby removing the leading end of the sheet by the cut amount.

That is, positioning markers are formed at regular intervals in accordance with the paper size on the continuous paper used in the printer, and the printer is provided with detection means for detecting the positioning markers. When the continuous paper is set in the printer, the paper is automatically conveyed by a predetermined amount. At this time, the marker detecting means detects the positioning marker of the paper. Then, the paper size and the paper type (paper type) are automatically determined based on the detection of the positioning marker, and the transport amount from the leading edge of the paper to the first reference marker is detected.

The cutting amount at the leading end of the sheet is determined from the transport amount detected in this way. If the cutting amount is larger than a predetermined value corresponding to the size of the paper discharge port, the size that can be discharged from the paper discharge port is determined. The cutting process is performed at least two or more times such that the paper piece is cut out, and the leading end portion of the cut amount is removed. Through such a procedure, it is possible to realize an appropriate pre-cut according to the paper size and the type of the paper, and to perform the pre-cut at an arbitrary cut amount without being limited by the size of the paper discharge port. It can be carried out.

According to a second aspect of the present invention, a continuous sheet is used as a recording sheet, and a conveying means for conveying the continuous sheet,
A printer pre-cut processing method for removing a leading edge of a sheet prior to the start of printing in a printer including a cutting unit that cuts a sheet and a sheet discharging unit that conveys a piece of paper cut by the cutting unit and discharges the sheet from a discharge port. Using a continuous sheet in which a positioning marker having a fixed positional relationship to a cutting position for cutting the continuous sheet to a predetermined sheet size is formed periodically along the longitudinal direction of the sheet, After the continuous paper is set in the printer main body, the paper is transported by a predetermined amount by the transport means, and during the transport, the arrival of the positioning marker is monitored by the marker detection means,
Based on the detection of the positioning marker, at least grasping the type or paper size of the paper, detect the transport amount from the leading edge of the paper to the first positioning marker,
The cut-off amount of the leading end of the sheet is obtained based on the detected transport amount, and the magnitude relation between the obtained cut-off amount and the minimum sheet size that can be discharged by the discharge means is compared. If it is determined that the paper size is smaller than the paper size, the leading end of the paper is removed by the amount obtained by adding the size of the predetermined paper size to the cutout amount, and the cut-out paper piece is discharged by the paper discharging means. It is characterized by:

According to the present invention, when the cut-out amount obtained from the detection of the positioning marker is small, which is less than the size that can be discharged by the paper discharging means, only one sheet of a predetermined paper size is further used. By performing extra truncation, the size of the truncated paper is increased. This allows
After the truncation, the paper piece can be conveyed by the paper discharging means and discharged.

The above-mentioned precut processing method according to claim 1 or 2, in particular, as described in claim 3, is a paper discharge method for discharging the cut paper in a direction perpendicular to the paper feed direction at the time of printing. It is more effective to apply to a printer equipped with the means. According to a fourth aspect of the present invention, as a specific mode of the printer precut method according to the first or second aspect, a registration marker indicating paper information including at least paper type information is formed on continuous paper. In addition, the printer is provided with a reading means for reading the registered marker, and after setting the paper in the printer, when reading the paper, the reading mark is read by the reading means, and based on the reading, the present printer is used. A paper type determination process for determining whether or not the paper type is a paper type registered in advance as a usable paper type is added.

As described above, the registration marker different from the positioning marker is formed on the continuous paper, and the paper is automatically determined based on the detection of the registration marker. Therefore, the use of paper other than the special paper can be eliminated. .

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a pre-cut processing method for a printer according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a front view showing the internal structure of a printer to which the present invention is applied, and FIG. 2 is a cross-sectional view taken along the arrow C in FIG. The printer 10 is a digital color printer of a Thermo-Autochrome type (hereinafter referred to as a TA type), and mainly includes a roll paper storage unit 22 for storing roll paper 20, a feed roller 24, and a pinch. Roller 26, capstan roller 28, thermal head 30, platen roller 32, cutter unit 34, photo sensor 36, magenta (M) fixing lamp 38, yellow (Y) fixing lamp 4
0, a paper discharge drive roller 42 and the like. These components are housed in a substantially rectangular casing 44. In FIG. 1, reference numeral 45 denotes a paper discharge tray, and the width of the paper discharge tray corresponds to the size of the paper discharge port.

The roll paper 20 is a continuous paper for forming a sticker wound so that the printing screen faces inward. That is, a seal paper on which an image is printed is stuck on a backing paper so that a cyan, magenta, and yellow color developing layer is formed on a support, and a heat-resistant protective layer is formed on the uppermost layer. Is formed. The width of the roll paper 20 is A
Various values such as 4, A5, A6, etc. are possible according to each paper size. For example, in the case of roll paper for A6 size, the dimension in the width direction is 148 mm. In the present embodiment, a roll paper for A6 size will be described as an example.

Roll paper 20 which is a sheet exclusively for creating a sticker
Is a fixed pattern in which 16 substantially rectangular seal shapes (predetermined shapes) of 4 × 4 are arranged in an area of A6 size, and only the seal paper is cut in advance (half cut) while leaving the mount. ) Has been. In addition, the shape of the seal shape, the number thereof, and the arrangement are not limited thereto, and various forms are possible.
The feed roller 24 is urged radially inward of the roll paper 20 by an urging means (not shown) so as to come into contact with the outer periphery of the roll paper 20, and the rotation driving force of a motor (not shown) is transmitted. Then, the roll paper 20 is fed rightward in FIG.

The pinch roller 26 and the capstan roller 28 are arranged opposite to each other, and
Numeral 6 is capable of being pressed against and released from the capstan roller 28 by a swing mechanism (not shown) or the like. The roll paper 20 is fed rightward in FIG. 1 by the feed roller 24, and the paper (paper) is
When the home position sensor 46 detects the arrival between the pinch roller 26 and the
6 is pressed against the capstan roller 28, and the sheet is nipped between the capstan roller 28 and the pinch roller 26.

A rotational driving force of a motor (not shown) is applied to the capstan roller 28 so that the capstan roller 2
8 is driven in the same rotation direction as the feed roller 24. Thus, the roll paper 20 is conveyed in the left-right direction in FIG. 1 with the rotation of the feed roller 24 and the capstan roller 28. A platen roller 32 is disposed below the thermal head 30 with the roll paper 20 interposed therebetween. At least one of the thermal head 30 and the platen roller 32 is supported by a mechanical mechanism (not shown) so as to be able to press and retract with respect to the paper (paper), and when the paper is conveyed to a predetermined position, the thermal head 30 is moved. Printing is started by pressing against the paper.

A cutter section 34 is provided at a stage subsequent to the thermal head 30. After the end of printing, the cutter unit 34 sets the roll paper 20 to a predetermined size (for example, A6 size).
The upper blade and the lower blade are arranged to face each other with the roll paper 20 interposed therebetween.
It is designed to be separated by sandwiching 0. Cutter unit 34
The photo sensor 36 is arranged at the subsequent stage. The photo sensor 36 is a sensor for detecting a positioning marker (not shown in FIG. 1) formed on the roll paper 20. Depending on the form of the positioning marker, the photo sensor 36 is a transmission type photo sensor or a reflection type photo sensor. Is used.
Note that a jam sensor 48 for detecting occurrence of a jam is provided near the photo sensor 36.

The M fixing lamp 38 and the Y fixing lamp 40 are installed above the fed roll paper 20, and are provided between the M fixing lamp 38 and the Y fixing lamp 40 and the Y fixing lamp 4.
A paper discharge pinch roller 50 is provided at the rear of 0. A discharge drive roller 42 is disposed below each of the discharge pinch rollers 50 with the roll paper 20 interposed therebetween.

As shown in FIG. 2, the paper discharge pinch roller 50 and the paper discharge drive roller 42 are provided one set before and after (right and left in FIG. 2) in the width direction of the paper, for a total of four sets. Further, each paper discharge pinch roller 50 is supported via a lever member 52 so as to be swingable in the vertical direction in FIG. 2, and can be pressed against and released from the paper discharge drive roller 42. .

The paper discharge drive roller 42 rotates counterclockwise in FIG. 2 when a rotational driving force of a motor (not shown) is applied, and the paper 20 ′ cut to a predetermined size by the cutter unit 34 is rotated. The sheet is sent out to the left discharge tray 56 side in FIG. The paper discharge tray 56 can be pulled out / stored in the printer 10 main body, pulled out as needed at the time of printing, and stored in the printer 10 main body after use.

The flow of the printing operation by the printer 10 is as follows. That is, the roll paper 20 is transported rightward in FIG.
A positioning marker on the back side of 0 is detected. Then, after the detection, the roll paper 20 is conveyed by a predetermined amount to the left in FIG. 1 by the capstan roller 28 and the pinch roller 26 and returned to the printing start position, and then again conveyed to the right at a constant speed. The thermal head 30 is controlled so that the yellow layer of the roll paper 20 has a color density according to the color image within the range of the thermal energy for coloring. Subsequently, light having a center wavelength of 425 nm is irradiated from the Y fixing lamp 40 to fix the yellow color.

Next, the roll paper 20 is rewound to the printing start position. Thereafter, the roll paper 20 is conveyed again to the right in FIG. 2 at a constant speed, and the thermal energy at which the magenta layer of the roll paper 20 develops a color. Within this range, the thermal head 30 is controlled so that the magenta layer has a color density corresponding to the color image, and then the light having a central wavelength of 365 nm is irradiated from the M fixing lamp 38 to fix the magenta color. Next, the roll paper 20 is rewound to the printing start position again. Thereafter, the roll paper 20 is conveyed at a constant speed to the right in FIG. So that the cyan layer has a color density corresponding to the color image.
Control 0. Thus, a color image is printed on the roll paper 20. After the printing is completed, the roll paper 20 is cut by the cutter unit 34, and the printed paper is discharged to the discharge tray 56 by the discharge drive roller 42 and the discharge pinch roller 50.

Next, a precut processing method in the present printer will be described. Paper used in the printer 10 can be roughly divided into plain paper and seal paper. The printer 10 can support both A5 size and A6 size paper sizes. That is, the paper discharge port of the printer 10 is formed in a size corresponding to the long side of the A5 size.

In the case of sticker paper, as shown in FIG. 3, a positioning marker 58 indicating a printing start reference position is formed on the back surface of the roll paper 20. As can be seen from a comparison between FIG. 3 and FIG. 4, the positioning marker 58 has a different period of formation depending on the paper size.
In the case of size paper, the positioning marker 58 is formed for each A6 area unit as shown in FIG. 3, and for the A5 size paper, the positioning marker 58 is formed for each A5 area unit as shown in FIG.
Is formed.

A registration marker 60 indicating registration information is formed following each positioning marker 58. The registration marker 60 indicates registration information of a supplier (supplier) that manufactures and supplies a specific continuous sheet of sealing paper (special paper) that is registered in advance as a sheet that can be used in the printer 10. By using the detection of, the use of paper not registered in the system can be excluded.

Incidentally, it is necessary to take measures for distinguishing the registration marker 60 and the positioning marker 58 at the time of detection. For example, as shown in FIGS. 3 and 4, the positioning marker 58 may be formed thicker than the registration marker 60, or the registration marker 60 may be in the form of a barcode. As described above, the positioning marker 58 and the registration marker 60 are provided on the roll paper 20 for producing the sticker, whereas the above-described markers are not formed on plain paper. Therefore, by detecting the presence or absence of the positioning marker 58, the type and size of the paper can be automatically determined, and it is possible to perform operation control suitable for the type and size of the paper according to the determination result. .

Next, the procedure of the precut processing in the printer configured as described above will be described. FIG. 5 shows a flowchart of the precut processing in the present printer. When the roll paper 20 is set on the main body of the printer 10, the control of the precut processing is started (step S100). In the pre-cut process, first, the paper is conveyed by conveying means such as a feed roller or a capstan roller, the leading edge of the paper is detected by the home position sensor, and then the A5 area is fed and the marker is read. (Step S102). Then, the presence or absence of the marker is determined based on the reading (step S104).

As a result of the determination, if there is no marker, it is determined that the paper set in the printer 10 is plain paper, and a system controller (hereinafter abbreviated as syscon) corresponding to a control unit of the printer 10 is referred to. A value (in this case, “one sheet”) obtained by converting the cut amount by the pre-cut, that is, the used amount of paper into the number of sheets of A6 size is returned, and this value is recorded in the memory (step S10).
6).

Thereafter, a cutting process of A6 size is performed from the leading edge of the sheet (step S108). Note that the precut mode (first mode) performed in step S108 is described as "precut (1)" in FIG. After executing the cutting process for the A6 size,
The actually cut number is returned to the system controller (step S132).

The system controller counts up the notified number of cuts, grasps the cumulative number of cuts, and monitors the amount of paper used (total number of sheets) in A6 size conversion. In the case where a piece of paper having a halfway size larger than the A6 size and smaller than the A5 size is cut out, it is estimated to be overestimated and counted as "two sheets". Thus, the pre-cut processing of the paper is completed,
Preparations are made so that printing is possible (step S13).
4).

If a marker is detected in the determination process of step S104, it can be determined that the sheet set in the printer 10 is a seal sheet. Therefore,
In this case, it is then determined based on the marker detection data whether or not the positioning marker 58 is present in an area where the paper transport amount is 85 mm or more (step S108). The value of 85 mm is a size indicating the minimum size of a piece of paper that can be mechanically discharged by the paper discharging means of the printer 10, and is set as appropriate for each printer model.

If it is determined that the positioning marker 58 exists in an area 85 mm or more from the leading end of the sheet,
The sheet is rewound to the position of the positioning marker 58 existing in the area exceeding mm (step S110). Of course, at this time, rewinding is performed while searching for the positioning marker 58. Next, it is determined whether or not the cut amount (cut amount: x) is equal to or larger than the A6 size (step S1).
12) If it is determined to be A6 or more, a value "2 sheets" indicating the cutting amount by the pre-cut is returned to the system controller, and this value is recorded in the memory (step S11).
4).

Next, cutting is performed at the planned cutting position A indicated by reference numeral 66 in FIG. 3 (step S118). The form (second form) of the precut executed in step S118 is described as “precut (2)” in FIG.
On the other hand, if it is determined in step S112 that the cut amount is less than A6, a value of "one sheet" indicating the cut amount by the pre-cut is returned to the system controller, and this value is recorded in the memory (step S116). Next, the pre-cut (2) in step S118 described above is performed.

After the pre-cut (2) process, the process proceeds to step S132, where the cumulative number of cuts is counted up, and the pre-cut process ends (step S134).
On the other hand, handling when the cut amount is less than 85 mm in step S108 will be described. In this case, the paper is further transported in the paper feeding direction (rightward in FIG. 1) while monitoring the detection of the positioning marker 58 (step S12).
0). Then, when the positioning marker 58 is detected, the cut amount is evaluated, and it is determined whether the cut amount is 210 mm or more (step S122).

If the cut amount is less than 210 mm, the size of the cut piece can be discharged from the discharge port.
Is returned, and this value is recorded in the memory (step S124). Then, cutting is performed at the scheduled cutting position B indicated by reference numeral 68 in FIG. 3 (step S126). The precut mode (third mode) performed in step S126 is described as “precut (3)” in FIG.
After the pre-cut (3) process, the process proceeds to step S132, where the cumulative number of cuts is counted up, and the pre-cut process ends (step S134).

If it is determined in step S122 that the cut amount exceeds 210 mm, a value "3 sheets" indicating the cut amount by the pre-cut is returned to the system controller, and this value is recorded in the memory. (Step S
128). However, since the cut amount is large, if the cutting process is performed as it is, the cut-out piece of paper cannot be discharged from the discharge port. Therefore, in this example, as shown in FIG. 4, the total cut amount x is divided into two, first, the amount of x1 is cut, the first piece of paper is discharged, and then x2 (=
A6) is cut (step S130).
The precut mode (fourth mode) performed in step S130 is described as "precut (4)" in FIG. After the pre-cut (4) processing, step S
Go to 132, count the cumulative number of cuts,
The precut processing ends (step S134).

As described above, according to the printer of this embodiment,
Appropriate pre-cutting according to the set paper type and size can be realized. In the above description, two cuts are performed when the precut amount is larger than the discharge port. However, two or more cuts may be performed. Next, another embodiment of the present invention will be described.

FIG. 6 shows a main configuration of a printer according to another embodiment of the present invention. In FIG.
Is a cutter unit, 42 is a paper discharge drive roller, 50 is a paper discharge pinch roller, 70 is a paper guide, and 72 is a paper discharge port. When the paper discharge rollers (42, 50) disposed at the subsequent stage of the cutter unit 34 are installed at a distance L1 from the cutter unit 34, the cut amount x of the paper is L1.
If it is smaller than this, there arises a problem that the cut-off paper pieces cannot be discharged by the discharge rollers 42, 50.

To solve such a problem, the following method is adopted. That is, the precut amount x is 0 (x = 0)
In the case of (1), cutting is performed at the planned cut position for one print, and the paper is discharged in a sheet size for one print.
The precut amount x is greater than 0 and less than L1 (0 <x <L1
In the case of ()), in addition to the precut amount x, an extra print is cut off by one print, and the sheet is discharged with a sheet size of [one print] + [precut amount x]. When the precut amount x is equal to or larger than L1 (x≥L1), the cutting is performed with the precut amount x and the sheet is discharged in the size of x as usual.

As described above, in consideration of the arrangement relationship between the cutter unit 34 and the paper discharge roller, the size of the cut-out paper piece that can be discharged is adjusted in the above cases (1) to (4). Further, the adjustment processing of the cut-off paper piece size described in FIG.
It is also possible to incorporate it into the sequence of the precut processing described in FIG. In the above-described embodiment, a TA-type printer has been described as an example. However, the present invention may be applied to various methods such as thermal transfer (melt type / sublimation type), laser exposure heat development transfer (pictography), inkjet, and thermal recording method. It can be applied to printers of various recording systems.

[0044]

As described above, according to the pre-cut processing method of the printer according to the present invention, the necessary amount of pre-cut (cut amount) is determined based on the feed amount from the leading edge of the paper to the marker detection, and the cut amount is determined. When the size is larger than the paper exit, pre-cut processing is performed multiple times so that the size of the paper is large enough to allow the paper to be discharged. Can be.

Further, by adding supplier protect information to the registration information of the system, forming a registration marker indicating this information on continuous paper, and reading the registration marker at the time of pre-cut, the use of paper not registered in the system is possible. It is also possible to use it in such a way that it cannot be performed. Further, when it is determined that the cut amount by the pre-cut is less than the size that can be discharged by the paper discharging means,
Since extra cutting is performed for one predetermined sheet size, the cut-out paper piece can be reliably discharged by the discharge means.

[Brief description of the drawings]

FIG. 1 is a front view showing the internal structure of a printer to which the present invention is applied.

FIG. 2 is a sectional view taken in the direction of arrow C in FIG. 1;

FIG. 3 is a rear side plan view of A6 size roll paper used in the printer.

FIG. 4 is a plan view of the back side of A5 size roll paper used in the printer.

FIG. 5 is a flowchart illustrating a procedure of a precut process of the printer.

FIG. 6 is a main part configuration diagram of a printer showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Printer 20 ... Roll paper 26 ... Pinch roller 28 ... Capstan roller 30 ... Thermal head 34 ... Cutter part 42 ... Discharge drive roller 45 ... Discharge tray part 50 ... Discharge pinch roller 58 ... Positioning marker 60 ... Registration marker 70: paper guide 72: paper exit

Claims (4)

[Claims] 1. A pre-cut processing method for removing a leading end of a sheet prior to the start of printing in a printer using continuous paper as recording paper, wherein the pre-cut processing method comprises the steps of: Using continuous paper in which positioning markers having a positional relationship of are periodically formed along the longitudinal direction of the paper, and after setting the continuous paper in the printer main body, the paper is transported by a predetermined amount by transport means. During the transport, the arrival of the positioning marker is monitored by marker detection means.Based on the detection of the positioning marker, at least the type or size of the paper is grasped, and the transport amount from the leading edge of the paper to the first positioning marker is determined. The amount of paper cut at the leading edge of the paper is calculated based on the detected transport amount. Comparing the magnitude relationship with a predetermined value corresponding to the size, and performing a cutting process in which a piece of paper having a size releasable from the paper exit is cut out when it is determined that the cut amount is larger than the predetermined value. A pre-cut processing method for a printer, characterized in that at least two or more times of the cutting are performed to remove the leading end of the sheet by the cut amount. 2. A continuous sheet is used as a recording sheet, a conveying unit for conveying the continuous sheet, a cutting unit for cutting the sheet, and a discharge unit for conveying a piece of paper cut by the cutting unit and discharging the cut piece from a discharge port. A pre-cut processing method for a printer equipped with paper means for removing a leading edge of a sheet prior to starting printing, wherein the pre-cut processing method has a fixed positional relationship with a cutting position for cutting a continuous sheet to a predetermined sheet size. Using continuous paper in which positioning markers are periodically formed along the longitudinal direction of the paper, and after setting the continuous paper in the printer body, the paper is transported by a predetermined amount by transport means. The arrival of the marker is monitored by marker detection means, and based on the detection of the positioning marker, at least the type or size of the paper is grasped. The amount of paper transported from the leading edge of the paper to the first positioning marker is detected, and the amount of paper cut at the leading edge of the paper is determined based on the detected amount of paper transport. Comparing the size relationship with the sheet size, and if it is determined that the cut amount is smaller than the minimum sheet size, the leading edge of the sheet is determined by adding the size of the predetermined sheet size to the cut amount. A pre-cut processing method for a printer, comprising removing a cut portion and discharging a cut-out piece of paper by the paper discharging means. 3. A pre-cut printer according to claim 1, wherein the pre-cut printer is applied to a printer having a paper discharging means for discharging the cut paper in a direction perpendicular to a paper feeding direction at the time of printing. Processing method. 4. A registration marker indicating paper information including at least paper type information is formed on the continuous paper, and a reading means for reading the registered marker is provided in the printer, and the continuous paper is set in the printer. A process of reading the registration mark by the reading means after the reading, and determining whether or not the sheet is a sheet registered in advance as a sheet that can be used in the printer based on the reading. Item 3. A precut processing method for a printer according to Item 1 or 2.