JP2001121765A - Printer and control method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide printer, and a control method therefore, in which a sheet can be discharged surely even when the residual quantity of sheets is low. SOLUTION: A continuous form is printed (501) and then reprinted (501) if the end of the continuous form is detected by means of a paper end sensor (510, YES) but not detected by means of a real end sensor (510, NO) until a cut command is received (505, NO). If the end of the continuous form is detected by means of the real end sensor (511, YES), a feed roller and a discharge roller are driven to discharge the sheet (512).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer for printing on continuous paper and a control method thereof, and more particularly to a printer characterized by discharge control of continuous paper having a small remaining amount and a control method thereof.

[0002]

2. Description of the Related Art As a printer built in an ATM device or the like for outputting a receipt or the like, a printer in which roll paper or other continuous paper is mounted and which is appropriately cut and separated by an automatic cutter mechanism is widely known. . Since this type of printer is often installed in a place where its manager or technician is not resident, it is an important issue to minimize the obstacles associated with its use.

It is important that, even when a failure occurs, a method for recovering from the failure is as simple as possible.

[0004] For this reason, a printer has a
A real end sensor for detecting the end of the continuous paper is provided. When the end of the continuous paper is detected by the real end sensor, printing is stopped assuming that the continuous paper has run out. Then, the paper is fed and the remaining continuous paper is discharged from the discharge port. Thereafter, after the continuous paper is replaced by a new one by the maintenance staff, printing is performed again.

[0005]

However, in such a conventional printer, if printing is performed when there is only a small amount of continuous paper left, the leading end of the continuous paper reaches a discharge roller provided near the discharge port. Before that, the end may be detected by the real end sensor. In such a case, since the continuous paper cannot be sent to the discharge roller, the continuous paper cannot be discharged and remains in the printer. Then, there is a problem that printing cannot be resumed unless the maintenance staff manually removes the continuous paper remaining in the printer. Also, the task of extracting paper from a narrow paper path in the printer is very time-consuming.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and to provide a printer capable of reliably discharging continuous paper even when the remaining amount of continuous paper is small, and a control method thereof. .

[0007]

According to the present invention, there is provided a method for controlling a printer for printing on continuous paper, comprising the steps of: (a) connecting the end of the continuous paper to a discharge port of the printer; A step of detecting when discharge is possible;
(B) discharging the continuous paper from an outlet of a printer when the end of the continuous paper is detected.

In the control of the present invention, the end of the continuous paper can be detected at the time when the continuous paper can be discharged, and the discharging operation can be performed. Therefore, the continuous paper can be reliably fed to the discharge roller and the continuous paper can be discharged, so that the maintenance staff does not need to manually remove the continuous paper.

The present invention also relates to a method of controlling a printer for printing on continuous paper, wherein (a) the end of the continuous paper is
(B) detecting the end of the continuous paper at a point where printing on the continuous paper becomes impossible; and (c) detecting the end of the continuous paper at a point where the continuous paper cannot be printed. If printing is completed after the end of the continuous paper is detected in the step (a) and before the end of the continuous paper is detected in the step (b), the continuous paper is discharged from the discharge port of the printer. And
If the end of the continuous paper is detected in the step (b) after the end of the continuous paper is detected in the step (a) and before the printing is completed, the printing on the continuous paper is stopped. Discharging the continuous paper from a discharge port of the printer.

[0010] In this case, when the end of the continuous paper is detected, if the printing is to be completed with a little more printing, the printing can be continued to complete the printing. Therefore, it is not necessary to perform printing again after replacing the continuous paper.

[0011] The present invention also relates to a printer for printing on continuous paper. The printer according to the present invention is a printer that performs printing on continuous paper, wherein a first transport unit that transports a printed area of the continuous paper toward an output port of the printer; and A second conveying means for conveying the printed area of the continuous paper out of the discharge port, and a paper end sensor for detecting the end of the continuous paper when the continuous paper can be discharged from the discharge port of the printer. When the end of the continuous paper is detected by the paper end sensor, control is performed to drive the first transport means and the second transport means to discharge the continuous paper from a discharge port of a printer. Means.

Further, the printer according to the present invention, in a printer for printing on continuous paper, a first transport means for transporting a printed area of the continuous paper toward an outlet of the printer, and a vicinity of the outlet. And a second transport unit that transports the printed area of the continuous paper out of the discharge port, and detects the end of the continuous paper when the continuous paper can be discharged from the discharge port of the printer. A paper end sensor that detects the end of the continuous paper, a real end sensor that detects when printing on the continuous paper becomes impossible, and the end of the continuous paper detected by the paper end sensor. If printing is completed before the end of the continuous paper is detected by the real end sensor, the first transport unit and the second transport unit are driven to drive the continuous paper from the printer outlet. Discharge After the end of the continuous paper is detected by the paper end sensor, if the end of the continuous paper is detected by the real end sensor before printing is completed, printing on the continuous paper is stopped. And control means for driving the first transport means and the second transport means to discharge the continuous paper from a discharge port of a printer.

Further, in the printer according to the present invention, the paper end sensor may be provided on the upstream side of the first transport means, and the interval between the paper end sensor and the first transport means may be different from the first transport means. It can be arranged at a position that is at least equal to the mutual distance between the means and the second transport means.

Thus, when the end of the continuous paper is detected by the paper end sensor, the remaining length of the continuous paper is equal to or greater than the mutual interval between the first transport means and the second transport means. Therefore, the continuous paper can be reliably sent to the second transport unit.

Further, the printer of the present invention comprises: a receiving means for receiving a control command and print data transmitted from a host computer; a printing means for printing on a web-shaped sheet according to the content received by the receiving means; First paper detection means for detecting the end of the web-shaped paper, cutting means provided near the printing means, if necessary, for cutting the paper, provided at a position facing the printing means, A first transport unit that transports the paper toward the discharge port, and a first transport unit that is provided near the discharge port downstream of the first transport unit and receives the paper transported from the first transport unit; A second transport unit for discharging the sheet from the discharge port, wherein when the first detecting unit detects the end of the sheet during printing by the printing unit, the first computer disconnects the sheet from the host computer. A control means is provided for controlling so as not to perform a cutting operation by the cutting means even when a command is received, and to discharge the sheet by a conveying operation by the first conveying means and the second conveying means. And

According to this configuration, even if a disconnection command indicating the end of printing is received from the host computer, the paper can be ejected without cutting by the disconnection command, so that the paper stays inside the printer. I will not do it.

Further, the printer of the present invention comprises: a receiving means for receiving a control command and print data transmitted from a host computer; a printing means for printing on a web-shaped sheet according to the content received by the receiving means; First paper detecting means for detecting the end of the web-shaped paper; second paper detecting means provided near the printing means for detecting a lower end of a printable state on the paper; and facing the printing means. A first transport unit that is provided at a position and transports the sheet toward the discharge port; and is provided near the discharge port downstream of the first transport unit and is sent from the first transport unit. A second sheet for receiving paper and discharging it out of the discharge port
Even if the first paper detection means detects the end of the paper during printing by the printing means, the printing is continued until the end of the paper is detected by the second detection means. And control means for controlling the first conveying means to convey the sheet without stopping.

According to this configuration, even if the first detecting means detects the end while printing data is slightly left during printing,
Since printing is possible until the second detecting means detects the end of the sheet, it is possible to output a sheet on which complete print data is printed.

Further, the printer of the present invention comprises: a receiving means for receiving a control command and print data transmitted from a host computer; a printing means for printing on a web-shaped sheet according to the content received by the receiving means; First paper detection means for detecting the end of the web-shaped paper, cutting means provided near the printing means, if necessary, for cutting the paper, provided at a position facing the printing means, A first transport unit that transports the paper toward the discharge port, and a first transport unit that is provided near the discharge port downstream of the first transport unit and receives the paper transported from the first transport unit; A second conveying means for discharging the paper from the discharge port to the outside, wherein a distance between the first paper detecting means and the cutting means is larger than a distance between the cutting means and the second conveying means. Increase the distance It is characterized in.

According to this configuration, the end of the sheet of the previous print cut by the cutting means (the start of the current print) to
Since the distance from the start end of the current printing to the first detecting means (that is, the minimum value of the printing time of the last printing of the paper) is larger than the distance between the second conveyance means and the last printing (the end of the paper). Is reliably transported by the second transport means, and the paper does not stay inside the printer.

Further, according to the printer control method of the present invention, printing is performed on continuous web paper by a printing means, and the printed paper is cut by the cutting means based on a cutting command received from a host computer. In interpreting the received cutting command in the printer control method for discharging from the discharge port by the transport means, it is determined whether or not the sheet length after cutting by the cutting means is a length that can be discharged from the discharge port. (A) if the length of the sheet is a length that can be discharged, the sheet is cut by the cutting means;
(B) If it is determined that the length of the sheet is such that the sheet cannot be discharged, any one of the sheets discharged from the discharge port without cutting by the cutting means is selected.

According to this configuration, in a printer that performs cutting based on a cutting command, it is possible to determine whether or not paper stays inside the printer before cutting, and short paper that stays inside the printer after cutting is generated. Can be prevented.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view showing the internal structure of the printer according to the present embodiment. Printer 10
Is a printer for printing receipts mounted on an ATM or the like, and stores roll paper R therein. A print head 12, a paper cutting mechanism 13, a feed-side discharge roller (hereinafter referred to as a "feed roller") 14, and a discharge-side discharge roller (hereinafter referred to as "feed roller") are provided on a paper path communicating the roll paper discharge port 11 from the roll paper R storage section. , 15 and 1).
6 is installed.

In accordance with a print command received from a host computer (not shown) by a receiving means (not shown), these transport rollers 14 to 16 are appropriately driven, and the roll paper R is sequentially pulled out from the roll portion. With the feed of the roll paper R by the feed roller 14, the print head 12 is driven to print desired characters and symbols on the roll paper R. The printed area of the roll paper R is further conveyed toward the discharge port 11, and the rear end of the printed area is provided with the paper cutting mechanism 1.
When it comes to position 3, it is cut and separated by this,
It is supplied to the user from the discharge port 11 as a single receipt.

The first and second discharge rollers 15 and 16 receive the leading end of the roll paper R fed by the feed roller 14 and guide the roll paper R to the discharge port 11. First and second discharge rollers 1
The transport speed of the roll paper R by 5 and 16 is set basically the same as that of the feed roller 14. Therefore, the feed roller 14 and the first and second discharge rollers 15,
While the roller 16 is being driven, the paper is fed by the feed roller 14, and the leading ends thereof are first and second discharge rollers 15, 16.
There is no pulling force applied to the roll paper R drawn in between and no extra bending occurs.

The leading end of the paper (hereinafter referred to as paper r) cut off from the upstream side of the roll paper R by the paper cutting mechanism 13 is continuously transported by the first and second discharge rollers 15 and 16 and substantially conveyed. The entire area is sent out through the outlet 11. The second discharge roller 16 on the downstream side in the transport direction holds the sheet r with a smaller pressing force than the first discharge roller 15 on the upstream side. The rear end of the cut sheet r is finally held by the second discharge roller 16 on the downstream side. As described above, since the paper r is held by the second discharge roller 16 with a small force, the user can easily pull out the paper r. Regarding the control according to the present invention, the first and second discharge rollers 15 and 16 are driven and stopped independently of the feed roller 14. Details of this control will be described later.

The printer 10 also includes the two pairs of the first and the first pairs.
A paper sensor 17 is provided between the second discharge rollers 15 and 16. The paper sensor 17 detects when the roll paper R has been conveyed and its leading end has passed over the upstream first discharge roller 15. The paper sensor 17 also detects when the trailing end of the cut paper r exceeds this. Various controls are executed based on the detection signal from the paper sensor 17.

The printer 10 is provided with a real end sensor (second paper detecting means) 18 and a paper end sensor (first paper detecting means) 19. The real end sensor 18 detects the end of the continuous paper when printing on the continuous paper becomes impossible. Specifically, the real end sensor 18 is arranged at a position immediately upstream of the print head 12 and detects that the end of the continuous paper has passed the real end sensor 18. The paper end sensor 19 detects the end of the continuous paper,
It is detected at the time when it can be discharged from the discharge port 11 of 0. Specifically, the paper end sensor 19 is on the upstream side of the feed roller 14, and the mutual interval (L 1) between the paper end sensor 19 and the feed roller 14 is different from the first discharge roller 15 on the upstream side of the feed roller 14. Is located at a position (L1 ≧ L2) that is equal to or longer than the mutual interval (L2), and detects that the end of the continuous paper has passed this position. The real-end sensor 18 and the paper-end sensor 19 may perform any type of detection. Thereby, it is possible to detect whether or not the end of the continuous paper has passed.

Note that the paper end sensor 19-feed roller 14, feed roller 14-first discharge roller 15 are used as L1 and L2.
Is near the feed roller (print head),
It is desirable to compare the size according to the position cut by the sheet cutting mechanism 13 to the position cut by the paper end sensor 19 and the sheet cutting mechanism 13 to the position sandwiched by the first discharge roller 15.

The printer 10 includes a receipt collecting device 20 for cutting and separating receipts. Outlet 1
When the receipt is left unattended at 1, the first and second discharge rollers 15 and 16 reversely feed the receipt based on a command from the host computer and draw the receipt into the printer 10. The received receipt is transferred to the collection path 21
, And are sequentially collected in the collection tray 22.

The printer 10 includes a control CP (not shown).
U (control means) and ROM are mounted. A CPU mounted on the printer 10 controls each of the above-described mechanical parts of the printer according to a control command from a host computer and a control program stored in a ROM. In connection with the present invention, the CPU incorporated in the printer 10
4. Drive control of the first and second discharge rollers 15, 16 and the paper cutting mechanism 13 to realize a predetermined paper discharge operation. The CPU includes the paper sensor 17 and the real end sensor 1.
8. Monitor the paper end sensor 19 and notify its status to the host computer as needed. Also, CP
U drives the print head 12 to perform printing on the paper R.

(First Embodiment) FIG. 2 shows a first embodiment of the present invention.
FIG. 3 is a schematic side view of the printer 10 showing a feeding state of the roll paper R in the embodiment, and FIG. 3 is a flowchart of a printing process. The print control in the printer 10 will be described with reference to these drawings.

At the time of starting printing, as shown in FIG. 2A, the leading end of the continuous paper cut by the previous printing is arranged at a position immediately near the paper cutting mechanism 13. In this state, when receiving data from the host computer, the printer 10 temporarily stores the data in a reception buffer (not shown), and sequentially interprets the content by an interpretation unit implemented by the CPU. If it is a print command, print processing is performed. In this printing process, C
The PU drives (scans) the print head 12 while feeding the paper r by the feed roller 14, and performs printing in accordance with print data following the print command received from the host computer. This printing is performed every predetermined length (for example, 1
Each time the printing is performed, the feed roller 14 conveys the paper r by the predetermined length (step 30 in FIG. 3).
1). With this printing operation, the paper r is gradually sent toward the outlet 11.

Next, the CPU confirms the detection of the leading end of the sheet r by the sheet sensor 17 (step 302 in FIG. 3). If not detected, the first and second discharge rollers 1 are detected.
5 and 16 are driven in synchronization with the feed roller 14 (step 303 in FIG. 3).

Further, every time printing is performed, the CPU monitors whether or not a cutting command for executing cutting of the paper r has been received from the host computer (step 30 in FIG. 3).
5) If no disconnect command has been received (step 30)
5, No), it is monitored whether or not the end of the continuous paper is detected by the paper end sensor 19 (Step 3 in FIG. 3).
09). Then, a disconnection command is received from the host computer (Step 305, Yes) or the end of the continuous paper is detected by detecting the paper end sensor (Step 309, Yes).
Until there is, steps 301 to 303 are repeatedly executed.

Here, the yes (disconnect command) in step 305 means that the received data from the host computer stored in the receive buffer is interpreted in order, and the point in time when the disconnect command indicating the end of the print data is interpreted. 305
Yes.

When the leading end of the sheet r is detected by the sheet sensor 17 (Step 302, Yes), the first and second discharge rollers 15, 16 are stopped (Step 304). Therefore, the leading end of the sheet r between the first discharge roller 15 and the second discharge roller 16 is in a state of being sandwiched by the first discharge roller 15 (FIG. 2B). When the process 301 is repeatedly executed, the first discharge roller 15 is stopped but the feed roller 14 is driven, so that the paper r gradually bends, and the print head 12 and the first discharge roller 1
5, a loop (bending) is formed (FIG. 2C).
In this control, if the paper r is discharged before cutting, the paper r discharged to the exit of the ATM or the like by the user may be pulled and torn. It is to bend without making it. However, such control is not essential in the present embodiment.

Thereafter, in step 305 of FIG. 3, when it is determined that the disconnection command has been received from the host computer, and the paper end is not detected by the paper end sensor 19 (step 306 in FIG. 3, no),
The CPU first drives the first and second discharge rollers 15 and 16 (step 307 in FIG. 3), and then drives the paper cutting mechanism 13
To cut the rear end of the paper r (step 30 in FIG. 3).
8). The cutting of the sheet r is completed before the formed loop completely disappears (hereinafter, not shown in the flowchart of FIG. 3).

The paper r separated from the roll paper R by the paper cutting mechanism 13 is supplied to the first and second discharge rollers 15, 1
6 conveys out of the outlet 11. When the rear end of the cut sheet r exceeds the sheet sensor 17 and this is detected, the first and second discharge rollers 1
The driving of 5 and 16 is stopped. As a result, as shown in FIG. 2D, the rear end of the paper r is weakly held by the second discharge roller 16, and the user can take out the paper r. This ends the printing process.

On the other hand, before the end of the continuous paper is detected by the paper end sensor 19 before it is determined in Step 305 that the disconnection command has been received from the host computer, that is, before printing is completed (Step 309, No). In step 310 in FIG. 3, the feed roller 14 and the first and second discharge rollers 15 and 16 are driven to discharge all the printed paper r and the remaining continuous paper.

For example, after cutting the paper r in step 308 (FIG. 2D), in the next printing process, steps 301 to 303 are performed.
It is assumed that the continuous paper has run out of paper while executing step 05. In this case, as shown in FIG. 2E, when the end of the continuous paper has passed through the paper end sensor 19, the end of the continuous paper is detected. Discharge takes place. Here, FIG.
Since the paper end sensor 19 is arranged such that L1 ≧ L2 in (e), when the end of the continuous paper is detected by the paper end sensor 19, the remaining continuous paper is sent out by the feed roller 14. Therefore, it can be reliably fed to the first discharge roller 15. Therefore, as shown in FIG. 2F, the remaining continuous paper can be discharged from the discharge port 11. Thereafter, the maintenance staff replaces the continuous paper with a new one and executes printing again. In the present embodiment, the real end sensor 18 can be omitted.

Here, whether or not the leading edge of the sheet is detected by the sheet sensor 17 (step 302, yes; no), whether or not a disconnection command is received from the host computer (step 305, yes; no) ), Since it is checked whether the end of the continuous paper is detected by the paper end sensor 19, if the end of the continuous paper is detected (Step 306, Yes), (or Step 30)
9, Yes), paper cutting mechanism 1 including auto cutter
The paper is discharged by the transport rollers 14 to 16 without operating the printer 3.

(Second Embodiment) Next, a second embodiment of the present invention will be described. FIG. 4 is a schematic side view of the printer showing a feeding state of a main part of the roll paper R in the embodiment,
FIG. 5 is a flowchart of the printing process. However, the configuration and the control method that are not particularly described are the same as in the first embodiment.

In the first embodiment, the paper end sensor 1
When the end of the continuous paper was detected in step 9, it was immediately discharged. Therefore, even when printing is completed if a little more printing is performed when the end is detected, it is necessary to replace the continuous paper and restart printing from the beginning. In the present embodiment, this point is improved, and printing is continued even if the end is detected, thereby eliminating the need for printing again. In the present embodiment, similar to the first embodiment,
Real end sensor 18 and paper end sensor 19
Is provided. Steps 501 to 504 in FIG. 5 are the same as steps 301 to 304 in FIG.

Now, when the end of the continuous paper is detected by the paper end sensor 19 (step 510 in FIG. 5, Yes; FIG. 4A), whether the end of the continuous paper is detected by the real end sensor 18 is determined. Is confirmed (see FIG. 5).
Step 511). If not detected (Step 5
(11, No), the process returns to step 501, and printing is continued as it is. With this printing, the paper r is gradually conveyed to the downstream side. Even if the end of the continuous paper is detected by the end sensor 19 (Step 510, Yes), but the end of the continuous paper is not detected by the real end sensor 18 (Step 511, No), the paper sensor 17 detects the end of the paper r. If the paper sensor 17 detects the leading edge and the real-end sensor 18 has not yet detected the end of the continuous paper, the printing is performed until the leading edge is detected. Therefore, the process 501 is continuously performed, and the sheet r is bent (FIG. 4).
(B), (c)).

Here, as described in the first embodiment, the reception of the disconnection command from the host computer is confirmed (step 505 in FIG. 5, Yes), and the real end sensor 1
8. If neither the end of the paper end sensor 19 is detected (steps 506 and 507, no), the process proceeds to steps 508 and 509 in the same manner as usual, where the paper r is discharged and cut, and the paper r is discharged. It is discharged from the outlet 11. Therefore, printing can be completely performed, and it is not necessary to perform printing again after replacing the continuous paper.

Steps 506 and 510 can be omitted if necessary.

On the other hand, before the reception of the disconnection command from the host computer is confirmed (Step 505, No), when the end of the continuous paper is detected by the real end sensor 18 (Step 511, FIG. 4C), As in step 310 described above, the paper r already printed and the remaining continuous paper are discharged (step 512, FIG. 3D). In this case, as in the first embodiment, the continuous paper can be discharged even when the remaining amount is small.

Even if a disconnection command is received from the host computer (step 505, Yes), the end of continuous paper is detected by the real end sensor 18 or the paper end sensor 19 (Steps 506, 507, Yes). , Without cutting the paper,
To discharge the paper.

Before the disconnection command is received, even if the paper end sensor 19 detects (Step 510, Yes), printing is performed until the real end sensor 18 detects (Step 501). (Step 511, Yes), without cutting the paper
The printing is stopped, and the transport rollers 14 to 16 are driven (Step 510), and the sheet is discharged.

As described above, one embodiment of the present invention has been described with reference to the drawings. However, the present invention is not limited to the matters described in the above embodiment, and is described in the claims and the detailed description of the invention. The range in which those skilled in the art can make changes and applications based on well-known techniques is included.

[0052]

As described above, according to the present invention, the end of the continuous paper can be detected at the time when the continuous paper can be discharged, and the discharging operation can be performed. Therefore, the continuous paper can be reliably fed to the discharge roller, and the continuous paper can be discharged, so that the maintenance staff does not need to manually remove the paper.

Alternatively, when the end of the continuous paper is detected, if the printing is to be completed with a little more printing, the printing can be continued to complete the printing. Therefore, it is not necessary to perform printing again after replacing the continuous paper.

Further, when the end of the continuous paper is detected by the paper end sensor, the remaining length of the continuous paper is equal to or greater than the mutual interval between the first transport means and the second transport means. Therefore, the continuous paper can be reliably sent to the second transport unit.

[Brief description of the drawings]

FIG. 1 is a schematic side view illustrating an internal structure of a printer according to a first embodiment of the present invention.

FIG. 2 is a schematic side view of the printer showing a roll paper feeding state according to the first embodiment of the present invention.

FIG. 3 is a flowchart of a printing process according to the first embodiment of the present invention.

FIG. 4 is a schematic side view of a printer showing a roll paper feeding state according to a second embodiment of the present invention.

FIG. 5 is a flowchart of a printing process according to a second embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 printer 11 discharge port 12 print head 13 paper cutting mechanism 14 feed roller 15 first discharge roller 16 second discharge roller 17 paper sensor 18 real end sensor 19 paper end sensor 20 collection device 21 collection path 22 collection tray R roll paper r paper

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Jinichi Takizawa 3-3-5 Yamato, Suwa-shi, Nagano F-term in Seiko Epson Corporation (reference) 2C058 LA03 LA24 LB09 LC02 LC12 LC16 LC25 2C061 AS05 LL06 3F105 AA01 AB04 DA23 DA51 5B021 CC05 KK00 KK07

Claims (9)

[Claims] 1. A method for controlling a printer that performs printing on continuous paper, comprising: (a) detecting the end of the continuous paper at a time when the continuous paper can be discharged from a discharge port of the printer; Discharging the continuous paper from an output port of the printer when the end of the continuous paper is detected. 2. A method for controlling a printer that performs printing on continuous paper, comprising: (a) detecting the end of the continuous paper at a time when the continuous paper can be discharged from a discharge port of the printer; (C) detecting the end of the continuous paper at the time when printing on the continuous paper becomes impossible; and (c) detecting the end of the continuous paper in the step (a).
If printing is completed before the end of the continuous paper is detected in the step (b), the continuous paper is discharged from the discharge port of the printer, and the end of the continuous paper is detected in the step (a). Thereafter, if the end of the continuous paper is detected in the step (b) before the printing is completed, the printing on the continuous paper is stopped, and the continuous paper is discharged from a discharge port of a printer. And a printer control method comprising: 3. A printer for performing printing on continuous paper, wherein: a first transport unit configured to transport a printed area of the continuous paper toward an outlet of the printer; A second conveying unit that conveys the printed area of the paper out of the discharge port, a paper end sensor that detects the end of the continuous paper at a time when the continuous paper can be discharged from the discharge port of the printer, When the end of the continuous paper is detected by the paper end sensor, the control means drives the first transport means and the second transport means to discharge the continuous paper from a discharge port of a printer. And a printer comprising: 4. A printer for performing printing on continuous paper, comprising: a first transport unit configured to transport a printed area of the continuous paper toward an outlet of the printer; A second conveying unit that conveys the printed area of the paper out of the discharge port, a paper end sensor that detects the end of the continuous paper at a time when the continuous paper can be discharged from the discharge port of the printer, A real end sensor that detects the end of the continuous paper when printing on the continuous paper becomes impossible; and a continuous end that is detected by the real end sensor after the end of the continuous paper is detected by the paper end sensor. When printing is completed before the end of the paper is detected, the first transport unit and the second transport unit are driven to discharge the continuous paper from a printer outlet, and the paper end is output. C If the end of the continuous paper is detected by the real end sensor after the end of the continuous paper is detected by the sensor and before the printing is completed, the printing on the continuous paper is stopped and the Control means for driving the first transport means and the second transport means to discharge the continuous paper from a discharge port of the printer. 5. The paper end sensor according to claim 1, wherein
Upstream of the conveying means, and is disposed at a position where the interval between the paper end sensor and the first conveying means is greater than or equal to the interval between the first conveying means and the second conveying means. The printer according to claim 3. 6. A receiving means for receiving a control command and print data transmitted from a host computer, a printing means for printing on a web-like sheet according to the content received by the receiving means, A first paper detecting means for detecting the end, a cutting means provided in the vicinity of the printing means and for cutting the paper as required, and a cutting means provided at a position facing the printing means, and A first transport unit that transports the paper toward the discharge port, which is provided downstream of the first transport unit in the vicinity of the discharge port, receives the paper transported from the first transport unit, and further moves out of the discharge port. And a second transport unit for discharging the sheet. When the first detecting unit detects the end of the sheet during printing by the printing unit, a disconnection command is received from the host computer. And a control means for controlling so as not to perform the cutting operation by the cutting means, and to discharge the sheet by the conveying operation by the first conveying means and the second conveying means. 7. A receiving means for receiving a control command and print data transmitted from a host computer, a printing means for printing on a web-shaped sheet according to the content received by the receiving means, A first paper detecting means for detecting an end, a second paper detecting means provided in the vicinity of the printing means and detecting a lower end capable of printing on the paper, and a second paper detecting means provided at a position facing the printing means; A first transport unit that transports the paper toward the discharge port, provided near the discharge port downstream of the first transport unit, for receiving the paper transported from the first transport unit; A second conveying means for discharging the paper from the discharge port, wherein even if the first paper detection means detects the end of the paper during printing by the printing means, the end of the paper is the second paper.
Do not stop printing until it is detected by the paper detection means of
A printer comprising control means for controlling the first transport means to transport the paper. 8. A receiving means for receiving a control command and print data transmitted from a host computer, a printing means for printing on a web-shaped sheet according to the contents received by the receiving means, A first paper detecting means for detecting the end, a cutting means provided in the vicinity of the printing means and for cutting the paper as required, and a cutting means provided at a position facing the printing means, and A first transport unit that transports the paper toward the discharge port, which is provided downstream of the first transport unit in the vicinity of the discharge port, receives the paper transported from the first transport unit, and further moves out of the discharge port. A second conveying means for discharging, wherein a distance between the first paper detecting means and the cutting means is larger than a distance between the cutting means and the second conveying means. Features Pre Nta. 9. A printer for printing on continuous web paper by a printing means, cutting the printed paper by a cutting means based on a cutting command received from a host computer, and discharging the cut paper from a discharge port by a transport means. In the control method of (1), when interpreting the received cutting command, it is determined whether or not the sheet length after cutting by the cutting means is a length that can be discharged from the discharge port. If the length is possible, the sheet is cut by the cutting means. (B) If it is determined that the sheet length becomes a length that cannot be discharged, the sheet is discharged from the discharge port without cutting by the cutting means. And a printer control method.