JPH05169731A - Printer - Google Patents

Abstract

PURPOSE:To provide a printer capable of printing on paper of any size. CONSTITUTION:A housing 2 of a printer is constituted so as to be placed in a desired position on a table. In the housing 2, a support arm 18 is movably supported at least along the uniaxial direction. To this support arm 18, a print head 92 is fixed opposing the face of the table. The support arm 18 is driven at least in the uniaxial direction by motors 52 and 20 housed in the housing 2. A printer input device for controlling the print head 92, the motors 52 and 20 housed in the housing 2 is connected to an output section of an external word processor. The motors 52 and 20 for driving the print head 92 and the support arm 1.8 are controlled by the output of the word processor.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a printer in which a housing is placed on a sheet of paper on a table and printing is performed on the sheet of paper with a wire-dot type print head in this state. .. [Prior Art] In this type of printer, a paper guide is provided in the housing, and the paper is printed on the paper by inserting and restricting the paper in the guide. [Problems to be Solved by the Invention] When the paper position is regulated by the guide in this way, the size of the paper is limited,
It is not possible to print on a non-regular sheet, for example, a desired portion of a large-sized drawing. SUMMARY OF THE INVENTION It is an object of the present invention to provide a printer capable of printing on a desired portion of a sheet regardless of the size of the sheet. [Means for Solving the Problems] In order to achieve the above object, the present invention provides a housing 2 having a shape suitable for being placed at a desired position on a table, and moving the housing 2 along at least one direction. A support arm 18 supported freely,
A motor built in the housing 2 for driving the support arm 18 in the feed direction, at least one print head 92 fixed to the support arm 18 so as to face the table surface, the print head 92, A printer input device for controlling the motor, the printer input device being connectable to an output section of an external word processor 102, the print head 92 and the motors 52, 2;
0 is controlled by the output of the word processor 102. [Operation] In the above-described structure, the housing 2 is placed at a desired position on the table and the word processor 1
When the output signal of 02 is supplied to the support arm feed motor and the print head 92, the print head 92 is sent along the paper in at least one direction by the movement of the support arm 18 in at least one X coordinate axis direction. 92
By this, printing is performed on the paper surface directly underneath, and predetermined characters are continuously printed on the paper. [Embodiment] The configuration of the present invention will be described in detail below based on an embodiment shown in the accompanying drawings. 2 and 3, reference numeral 2 denotes a printer housing, to the bottom of which a X-axis guide 4, 6 is fixed via a bracket. Inner diameter portions of X cursors 8 and 10 are slidably fitted into the X-axis guides 4 and 6, respectively. Y guide shafts 12 and 14 are integrally provided on the X cursors 8 and 10. Reference numeral 16 is a Y cursor slidably inserted into the Y guide shafts 12 and 14, and a support arm 18 is integrally formed at the tip end of the Y cursor. The support arm 18 is a guide hole for the X cursor 8. It is slidably inserted in. The tip of the arm 18 projects forward of the upper edge of the housing 2. Reference numeral 20 is a Y motor fixed to the bottom wall of the housing 2, and the output shaft of the Y motor is a small gear 22.
The small gear 22 meshes with a gear 26 fixed to one end of a shaft body 24 rotatably supported by a bracket on the bottom of the housing 2. A drum 28 is fixed to the shaft body 24, and a flexible wire rope 3 is attached to the drum 28.
0 is wound multiple times. One of the ropes 30 is hung on the rope pulleys 32, 34, 36 and 38 with appropriate tension, and one end of the rope 30 is fixed to one side portion of the bottom wall of the housing 2. The other end of the rope 30 is hung on the rope pulleys 40, 42, 44 and 46 with appropriate tension, and the other end of the rope 30 is fixed to one side portion of the bottom wall of the housing 2. The pulleys 32 and 40 are rotatably supported by the bottom wall of the housing 2. The pulleys 34 and 38 are rotatably supported by the X cursor 8, and the pulleys 42 and 46 are rotatably supported by the X cursor 10. The pulley 3
6, 44 are rotatably supported by the Y cursor 16. Reference numeral 52 is an X motor fixed to the bottom wall of the housing 2, a small gear 54 is fixed to the output shaft of the X motor, and the small gear 54 is rotatably supported on the bottom wall of the housing 2 via a bracket. The intermediate gear 56 fixed to one of the shafts meshes with the small gear 58 fixed to the other of the shafts. Reference numeral 60 denotes a shaft body rotatably supported on the bottom wall of the casing 2 via a bracket, and drums 62 and 64 are fixed to both ends of the shaft body. A gear 66 fixed to the shaft body 60 meshes with the small gear 58. A plurality of wire ropes 68 wound around the drum 62
Has one end fixed to one side of the X cursor 8, and the other side of the wire rope 68 has an appropriate tension,
It is hung on a rope pulley 69 rotatably supported on the bottom wall of the housing 2, and the other end of the rope 68 is fixed to the other side of the X cursor 8. One end of the wire rope 70 wound a plurality of times around the drum 64 is fixed to one side of the X cursor 10, and the other side of the rope 70 has an appropriate tension so as to be freely rotatable on the bottom wall of the housing 2. The rope 7 is hung on the supported rope pulley 72.
The other end of 0 is fixed to the other side of the X cursor 10. Reference numeral 74 denotes a pin fixedly mounted on the Y cursor 16, and the pin 74 is located at a cutout portion provided transparently on the Y cursor 16. A ribbon spool 76 is rotatably fitted to the pin 74. Reference numeral 78 is a ribbon feed motor fixed to the Y cursor 16. A ribbon spool 82 is attached to a pin 80 connected to the output shaft of the motor 78, and a ribbon spool 82 is attached to the output shaft 80.
It is detachably fitted so as not to rotate with respect to.
The pins 74 and 80 are set horizontally with respect to the X-axis guides 4 and 6 and the surface of the table 90. Reference numeral 84 denotes a head case fixed to the tip of the support arm 18, to which a pair of ribbon guide pulleys 86 and 88 are rotatably attached. Reference numeral 92 is a well-known print head of the wire dot system, and a moving path of the ink ribbon 94 is set below the print portion provided at a position close to the table 90 of the head 92. The ink ribbon 94 fed from the ribbon spool 76 is set so as to be wound around the ribbon spool 82 via the pulleys 86 and 88 and the lower side of the print portion of the print head 92. The housing 2 is configured exclusively for the printer, and the input device of the dedicated printer and the output unit of the document creator, that is, the word processor 102 are configured to be connected by a cord 104 as shown in FIG. The XY motors 52, 20,
The ribbon feed motor 78 and the print head 84 are connected to a printer input section built in the housing 2, the input section is connected to an output section of a word processor 102 provided separately from the housing 2, and the XY motor 52 is connected. , 20, the ribbon feed motor 78 and the print head 84 are controlled by the output signals of the word processor 102.
As is clear from the above description, the pins 74, 80 and the guide pulleys 86, 88 constitute a ribbon guide mechanism that guides the ink ribbon 94 movably along the longitudinal direction of the support arm 18. Further, although the motor 78 constitutes a ribbon drive mechanism, the motor 78 is not particularly limited to the configuration attached to the support arm 18. The motor 78 may be attached to the housing 2 and the driving force of the motor 78 may be transmitted to the pin 80 via the pulley and the wire rope. Next, the operation of this embodiment will be described. When the housing 2 is placed at a desired position on the paper on the table 90 and the print information of the word processor 102 is supplied to the printer input section, the XY motors 52, 20 and the ribbon feed motor 78 are driven based on the print information. In addition, the printing unit of the print head 92 is driven. X motor 5
When the drums 62 and 64 are rotated by the drive of 2, the X cursors 8 and 10 are moved along the X guide shafts 4 and 6 by the tension of the wire rope 70, and this movement causes the X guide shaft 4 to move to the paper on the table 90. , 6 is printed in a direction parallel to the direction. When changing the line on the paper, the Y motor 20
Is driven. When the Y motor 20 is driven, the drum 2
The wire rope 30 is wound around and wound around 8, and the tension of the wire rope 30 causes the Y cursor 16 to move a predetermined distance along the Y-axis guides 12 and 14, and the print head 92 moves a predetermined pitch in the line changing direction. .. During the printing operation by the print head 92, the ribbon feed motor 78 is driven, the ink ribbon 94 is unreeled from the spool 76, and is wound up on the spool 82. Next, another embodiment will be described with reference to FIGS. In FIGS. 4 and 5, reference numeral 18 denotes a support arm, one end of which is fixed to the X cursor 10. The other side of the support arm 18 penetrates the guide hole of the X cursor 8 and projects to the front of the housing 2 by a predetermined length. The head case 84 of the support arm 18 has three print heads 92a, 92b, 92c.
Is provided, and an ink ribbon 94 is located below the printing portions of the print heads 92a, 92b, 92c. The ink ribbon 94 is supplied from the spool 76, and is wound around the spool 82 via the guide pulleys 86 and 88. The spool 82 is fitted to a pin 80 connected to the output shaft of the ribbon feed motor 78 via a rotation stopping mechanism. In this embodiment, the support arm 18
Is not provided with a mechanism for moving in a direction perpendicular to the X-axis guides 4, 6. Further, in the first embodiment, the support arm 18 is provided with the single print head 92.
In this embodiment, a plurality of print heads 92a, 92b, 92
c are arranged in series in the Y-coordinate axis direction, and the print heads 92a, 92b, and 92c are simultaneously driven to perform printing in a plurality of columns. The other structure is the same as that of the first embodiment. Next, the operation of this embodiment will be described. The X motor 52 and the ribbon feed motor 7 are output according to the output signal from the separately prepared word processor.
8 and the print heads 92a, 92b, 92c are controlled. The housing 2 is placed on the table 90 at a desired position of the sheet.
And the print start button is pressed, the print heads 92a, 92b, 92c print on the paper surface on the table 90, and the X arm 52 drives the support arm 18 to the X axis guides 4, 6. Move along. In the present embodiment, three lines of characters are printed simultaneously within the range of movement of the support arm 18 in the X coordinate axis direction. The number of print lines can be increased by increasing the number of print heads. [Effects] According to the present invention, as described above, when the housing of the printer is placed on the table, the print head closely faces the paper on the table and the print head can print the print information of the word processor on the paper on the table. Therefore, there is an effect that the print information of the word processor can be printed on paper of any size.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external view, FIG. 2 is a plan view with a housing cover removed, FIG. 3 is a sectional view, and FIG. 4 is a plan view showing another embodiment. FIG. 5 is a side sectional view of the same. 2 ... Housing, 4, 6 ... X-axis guide, 8, 10 ... X cursor, 12, 14 ... Y-axis guide, 16 ... Y cursor,
18 ... Support arm, 20 ... Y motor, 22 ... Small gear, 2
4 ... Shaft, 26 ... Gear, 28 ... Drum, 30 ... Wire rope, 32, 34, 36, 38, 40, 42, 44, 4
6 ... Rope pulley, 52 ... X motor, 54 ... Small gear, 5
6 ... Intermediate gear, 58 ... Small gear, 60 ... Shaft, 62, 64
... drum, 66 ... gear, 68 ... wire rope, 69 ... rope pulley, 70 ... rope, 74 ... pin, 76 ... ribbon spool, 78 ... ribbon feed motor, 80 ... pin, 90
... table, 84 ... head case, 86, 88 ... ribbon guide pulley, 92 ... print head, 94 ... ink ribbon.

Claims (1)

[Claims] 1. A housing 2 having a shape suitable for being placed at a desired position on a table, a support arm 18 movably supported in the housing 2 along at least one direction, and the support arm 18 in the feed direction. The housing 2 to be driven
And a printer input device for controlling the print head 92 and the motor, and a motor built in the printer, at least one print head 92 fixed to the support arm 18 so as to face the table surface, and a printer input device for controlling the print head 92 and the motor. A printer input device can be connected to an output section of an external word processor 102, and the print head 92 and the motors 52, 20 can be connected.
Is controlled by the output of the word processor 102.