JPH0541810U - Printer - Google Patents

Abstract

(57) [Summary] [Purpose] With the continuous form paper attached, insert a second sheet such as a single-cut sheet, which is different from the continuous form paper, onto the continuous form paper and insert it into the second form. Eliminate jams that occur when inserting a second sheet in a printable printer. [Structure] When a signal for transporting the cut-sheet paper 4 to the platen 1 is sent by operating the paper suction key, and when the continuous-paper sheet sensor 13 detects the continuous-cut paper, Prior to conveyance, the guide film 10 is moved between the print head 2 and the platen 1 so as to overlap the first continuous paper 3a, and the cut sheet 4 is guided. Then, when printing, the guide film 10 is retracted from the platen 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a printer, and more specifically, it is possible to stack a second sheet of paper as a printing sheet with the continuous form sheet still attached to the platen and perform printing on the second sheet by a print head. The present invention relates to a printing device.

[0002]

[Prior Art]

 Conventionally, if you want to cut and print single-cut sheets with the continuous form paper attached to the platen, to avoid the hassle of removing the continuous form paper, put it on the continuous form paper. There was a printing device that allowed sheets to be inserted on top of each other and printed on single sheets.

FIG. 5 shows a schematic configuration of a conventional device. The continuous form paper 3 is held with a certain tension in a state where the platen 1 is bent in a V shape with the top part thereof and inclined to the front and rear sides of the platen 1. The continuous paper 3 is conveyed by the pin tractor 5a for a certain length. A print head 2 is attached at a position facing the platen 1 with a continuous form paper 3 sandwiched therebetween with a gap. The single-cut sheet 4 is inserted from the horizontal direction onto the continuous-form sheet 3 of the platen 1 by a pair of feed rollers 6.

However, when the perforation 8 of the continuous form paper 3 is on the platen 1 due to a user's operation or the like, as shown in FIG. 5, the leading end of the cut sheet 4 is the perforation of the continuous form paper 3. Sometimes I bumped into 8 and caused a jam. In order to avoid this, before inserting the monotonous paper 4, it is necessary to feed the continuous form paper 3 by manual operation, a line feed switch or a line feed command, and move the perforation 8 from the platen 1. It was Such an operation is very troublesome for the user, and there is a problem that workability is significantly deteriorated.

On the other hand, a technique for printing on the cut-sheet paper 4 with a printing device in which the continuous paper 3 is inserted is proposed in Japanese Utility Model Publication No. 61-36371. The problem to be solved is to prevent the continuous form sheet 3 from being damaged when the cut sheet form 3 is overlapped on the continuous form sheet 3 and the printing operation is performed. Therefore, as shown in FIG. 6, when printing on the single-cut sheet 4, the platen 1 is retracted and the plate platen 9 for the single-cut sheet is moved to a position facing the print head 2. In this way, if the platen 1 is moved and the plate platen 9 is sufficiently opened to insert the platen 9, even if the perforation 8 of the continuous paper 3 is on the platen 1, no jam occurs.

[0006]

[Problems to be solved by the device]

 However, the device proposed in Japanese Utility Model Publication No. 61-36371 has a problem that a device for moving the platen 1 is required, resulting in a great increase in cost. Further, in order to improve print quality, the platen facing the print head 2 is required to have high rigidity. Performing the platen with the movable platen 9 as in the device proposed in Japanese Utility Model Publication No. 61-36371 has a problem that the rigidity of the platen is lowered and the print quality is deteriorated.

Further, in the apparatus proposed in Japanese Utility Model Publication No. 61-36371, when printing is used on the cut sheet 4, the platen 1 is always retracted even when the continuous form sheet 3 is not inserted. However, since the platen 9 is moving, the extra time is spent. Furthermore, it has been found that even if the continuous form paper and the cut form paper are overlaid and printed, the continuous form paper is not so damaged.

The present invention has been made to solve the above-mentioned problems, and provides a printing device in which continuous paper is inserted by a simple mechanism and other paper can be printed. The purpose is to

[0009]

[Means for Solving the Problems]

 In order to achieve this object, a printer according to claim 1 conveys continuous form paper through a print head, a platen facing the print head, and a gap formed by the print head and the platen. Second paper for transporting a second printing paper, which is different from the continuous form paper, into the paper passage and the gap formed by the print head and the platen on the print head side of the first paper passage. A printing device for printing with a print head on a second printing paper stacked on the continuous form paper on the platen, the printing device being provided with a passage on the platen. It has a guide member that guides the second printing paper at the first stop position on the continuous form paper, and retracts to the second stop position that is disengaged from the platen when the print head performs the marking operation. ..

The printing apparatus according to a second aspect of the invention conveys the continuous form paper through a print head, a platen facing the print head, and a gap formed by the print head and the platen. A paper path and a second paper path, which is located closer to the print head than the first paper path and conveys a second print paper other than the continuous form paper to a gap formed by the print head and the platen. A printing device for printing with a print head on a second printing paper stacked on the continuous paper on a platen, the continuous paper on the platen being fed when the second printing paper is conveyed. It has a guide member that guides the second print paper at the first stop position on the paper, and is retracted to the second stop position that is off the platen when the print head performs the marking operation. Detects continuous paper on one paper path And a control means for retracting the guide member to the second stop position even when the second printing paper is conveyed, when the paper detection means does not detect the paper. is doing.

[0011]

[Action]

 The printing head of the printing apparatus according to claim 1 having the above-mentioned configuration prints characters and figures on a printing paper on the platen, and further prints on a second printing paper stacked on the continuous paper on the platen. .. Further, since the platen faces the print head and supports the back surface of the printing paper with high rigidity, good printing quality can be obtained. Further, the first paper passage conveys the continuous form paper into a gap formed by the print head and the platen. The second paper passage is closer to the print head than the first paper passage, and conveys the second print paper, which is different from the continuous form paper, into the gap formed by the print head and the platen. ..

Further, the guide member is located at the first stop position on the continuous form paper on the platen and guides the second print paper when the second print paper is conveyed, and the print head performs the marking operation. Since the retreat is carried out to the second stop position which is detached from the platen, the second printing paper can be stably inserted even if there is a perforation of the continuous paper on the platen.

Further, in the device according to the second aspect, the paper detection means detects the presence or absence of the continuous paper on the first paper path. Further, since the control means retracts the guide member to the second stop position even when the second printing paper is conveyed, when the paper detection means does not detect the paper, the continuous paper When is not inserted, the second printing paper is immediately loaded without using extra time.

[0014]

【Example】

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a printing apparatus according to an embodiment of the present invention. The first continuous book 3a is held in a state in which the platen 1 is a top portion, is bent in a V shape, and is inclined to the front and rear sides of the platen 1 with a certain tension. The first continuous book 3a is conveyed by the pin tractor 5a for a certain length. A print head 2 is attached to the platen 1 at a position facing the platen 1 with a gap between the first continuous book 3a. The single-cut sheet 4 is inserted from the horizontal direction onto the first continuous book 3a of the platen 1 by a pair of feed rollers 6.

A continuous form paper passage 15, which is a first paper passage, is provided between the platen 1 and the pin tractor 5 a that conveys the first continuous form 3 a. Further, a first continuous form paper detection sensor 13a for detecting whether or not continuous form paper is attached is attached between the pin tractor 5a and the continuous form paper passage. A sheet passage 14 for a sheet, which is a second sheet passage, is provided on the left and right of the conveying roller 6 that conveys the sheet 4 for a sheet. A single-cut detection sensor 18 is attached between the single-cut sheet passage 14 and the platen 1.

Further, a transportation path for the second continuous paper 3b is provided above the insertion path for the cut-sheet paper 4, and the transportation path merges with the second transportation path at the platen position. The second continuous book 3b is carried by a pin tractor 5b provided upstream of the platen in the carrying path. A second continuous book paper detection sensor 13b is provided slightly downstream of the pin tractor 5b. The first continuous book 3a is generally used for printing without being cut. Therefore, generally, the continuous book cannot be saved. Further, the first continuous paper 3a cannot use a duplication paper or the like. This is because, in the case of copy paper, when single-cut printing is performed, it is inevitable that the continuous paper will be scratched by the impact of dots.

The second continuous ledger 3b is generally assumed to cut the printed portion each time it is printed. Therefore, when the second continuous book 3b is not printed, the tip of the second continuous book 3b is retracted to the position of the second continuous book detection sensor 13b upstream of the platen position. You can save the continuous book. Copy paper may be used for the second continuous book.

A shifter 11 is mounted between the first continuous paper path 15 and the single-cut paper path 14 so as to be linearly movable in the paper transport direction. A rack 11 a is formed on the lower surface of the shifter 11. The rack 11a is fitted with a pinion 17 attached to the step motor 12. A guide film 10, which is a guide member, is fixed to the tip of the shifter 11. The guide film 10 is made of a thin film having an appropriate rigidity such as polyester.

The guide film 10 is rotated in the forward / reverse direction of the step motor 12 so as to move in the same direction as the sheet conveying direction of the single-cut sheet 14 and the first stop position on the platen 1 and the second retracted position from the platen 1. It can be moved to the stop position. The shift position of the guide film 10 is detected by the shift sensor 19 via the shifter 11.

Next, a configuration for controlling the printing apparatus will be described. FIG. 2 is a block diagram showing the configuration of the control device. The CPU 21 is connected to a ROM 23 that stores a control program and the like for splash printing and a RAM 22 that temporarily stores data and the like for printing, and cooperates with them to control the printing apparatus. The switch panel 20 includes various key switches, and inputs signals of keys pressed by the user to the CPU 21. To the CPU 21, signals from the continuous paper detection sensor 13, the cut sheet detection sensor 18, and the shift sensor 19 are input.

Further, the CPU 21 includes a step motor 12 for driving the shifter 11, a motor 24 for driving the sheet transporting device such as the platen 1, the transport roller 6, and the pin tractor 5a, and a driver for driving the print head 2, respectively. It is connected and the CPU 21 controls each motor and the like via a driver.

Next, the operation of the printing apparatus will be described. The selection of the first continuous form 3a, the second continuous form paper 3b or the cut form paper 4 is performed by a key operation of the switch panel 20 or a command from the host device. The first continuous book 3a is attached to the pin tractor 5a and the platen 1 for printing. Since this is the same as the operation of the conventional printing device, the details are omitted.

The operation of feeding the single-cut sheet 4 or the second continuous form sheet, which is the main part of the present invention, will be described with reference to the flowchart of FIG. In addition, a single form is described here as an example, but the outline is the same in the case of the second continuous form. When the first continuous paper 3a is already attached, in order to print on the cut sheet 4 by interruption, first, the cut sheet suction signal key on the switch panel 20 is pressed (S1). The CPU 21 checks the signal from the first continuous paper sensor 13a to determine whether the first continuous paper 3a is mounted in the printing device (S2).

When the first continuous book 3a is attached, the step motor 12 is driven to slide the guide film 10 in the direction of the platen 1 by a predetermined pulse amount (S3). As a result, the guide film 10 contacts the first continuous paper 3a on the platen 1. At this time, even if the perforations of the first continuous paper 3a are located on the platen, since the guide film 10 has sufficient rigidity, the guide film 10 is inserted without being disturbed by the perforations. ..

Next, the paper transport motor 24 is driven to rotate the transport roller 6 and suck the single-cut sheet 4 toward the print head 2 (S4). Then, after the leading edge of the cut sheet 4 is detected by the cut sheet detection sensor 18, it is advanced by a prescribed pulse amount (S5), and the print start position is made to face the print head 2 (the state is shown in FIG. 1). .. At this time, since the cut-sheet paper 4 advances along the guide film 10 on the guide film 10 which is overlapped on the first continuous book 3a, the perforation of the first continuous book 3a is on the platen 1. Even if it exists, unlike the conventional printing apparatus, the single-cut sheet 4 does not hit the perforation and a jam does not occur.

After that, the step motor 12 is rotated in the reverse direction to retract the guide film 10 to the position where the shifter 11 detects the shifter sensor 19 (S6). As shown in FIG. 4, the cut sheet 4 is placed on the platen 1 so as to overlap the first continuous form 3a. Further, the guide film 10 is stopped at the position retracted from the platen 1. Then, the print head 2 starts the printing operation according to the print data and the like from the host device as in the usual case.

Here, since the guide film 10 is retracted from the platen 1 when printing, the pressure of the print head 2 is received by the regular platen 1, so that the printing quality is good.

When the key for inhaling the cut sheet paper 4 is pressed to print on the cut sheet paper 4 (S 1), and the continuous form paper is not attached to the printing device (S 2), the guide film 10 Immediately suck the single-cut sheet 4 without advancing (S7) and send only the specified pulse amount (S8). Therefore, when the first continuous ledger 3a is not attached to the printing device, it is possible to perform work efficiently without spending extra time.

In the present embodiment, the case where the first continuous book 3a has perforations has been described, but the same applies even when the first continuous book 3a is a sheet such as a label sheet having a step or a sheet having a score line. Applicable to The same applies even if the second printing paper is the second continuous paper 3b. Further, if the leading edge of the single-cut sheet 4 is conveyed by the processing of S5 until it is held by the conveyance roller 7 on the downstream side of the platen, and the guide film is pulled out in that state, even when using thin sheets, It is possible to prevent the paper from being pulled out by rubbing or adsorbing by static electricity during the operation of pulling out the guide film. After the processing of S6 is completed, the paper is moved to the print start position. In this case, since the leading edge of the sheet has already exceeded the perforated position, even if the sheet comes off the transport roller 7 at this time, no jam occurs.

[0030]

[Effect of the device]

 As is clear from the above description, according to the present invention, the guide member is in the first stop position on the continuous form paper on the platen when the second printing paper is conveyed, and the second printing is performed. Since the paper is guided and retracted from the platen when the print head performs the printing operation, the second printing paper can be stably fed to the printing device equipped with continuous paper, which makes it easy. With this mechanism, the troublesome work of the user can be eliminated and the print quality can be maintained.

Further, when the paper detection means for detecting continuous paper on the first paper path and the paper detection means do not detect the paper, the guide member conveys the second printing paper. Since it also has a control means that retracts it to the second stop position when it is carried out, if the continuous form paper is not loaded in the printing device, the cut sheet paper is immediately fed. As a result, the extra time is eliminated and the work efficiency of the user can be improved.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a printing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a control configuration of a printing apparatus.

FIG. 3 is a flowchart showing a printer control operation.

FIG. 4 is a schematic configuration diagram showing a state in which a guide film is in a retracted position in the printing apparatus.

FIG. 5 is a schematic configuration diagram of a conventional printing device.

FIG. 6 is a schematic configuration diagram of another conventional printing apparatus.

[Explanation of symbols]

 1 platen 2 print head 3 continuous form paper 4 single form paper 5 pin tractor 6 transport roller 10 guide film 11 shifter 12 step motor 13 continuous form paper detection sensor 14 single form paper passage 15 continuous form paper passage 19 shift sensor

Claims (2)

[Scope of utility model registration request] 1. A print head, a platen facing the print head, a first paper passage for conveying continuous paper through a gap formed by the print head and the platen, and a first paper passage. A second paper path for transporting a second printing paper different from the continuous printing paper is provided in a gap formed between the printing head and the platen on the platen side, and the continuous printing is performed on the platen. In a printing device that prints on a second print sheet stacked on a sheet with the print head, a first stop position on the continuous form sheet on the platen when the second print sheet is conveyed. And a guide member that guides the second print sheet and is retracted to a second stop position that is out of the platen when the print head performs a marking operation. 2. The paper according to claim 1, wherein paper detecting means for detecting continuous paper on the first paper path, and when the paper detecting means does not detect paper, A printing apparatus, comprising: a control unit that retracts the guide member to the second stop position even when the second print sheet is conveyed.