JP3444319B2 - Paper ejection mechanism of printer - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a paper discharge mechanism of a printer capable of optionally using cut sheets and continuous paper. 2. Description of the Related Art A conventional paper feed mechanism in a printer capable of optionally using cut-sheet paper and continuous paper will be described with reference to the drawings. In FIG. 5A, the cut-sheet paper feeding mechanism is the top sheet 1 of the plurality of cut sheets 103 stacked on the cut-sheet stacking unit 102 of the sheet feeding device 101.
04 is pushed out by the rotation drive of the paper feeding roller 105, and after the leading end corner of the paper 104 gets over the separation claw 106 and is separated from other papers, the leading end is caught between the platen 107 and the friction roller 108. Sent out to. When the paper 104 is transferred to the platen 107 and the friction roller 108, the rotation of the paper feed roller 105 is stopped, and then the platen 107 rotates in the direction of arrow B so that the leading end of the paper 104 is moved between the print head 109 and the platen 107. The paper is conveyed until it is guided to the paper guide unit 110 through the interval. Then, a printing process is performed on the conveyed sheet. [0003] The cut-sheet paper 103 after printing is placed on the paper guide unit 1.
The sheet is guided to the transfer roller 10 and transferred to the discharge roller 111, sent out to the discharge sheet storage section 112 by the rotation of the discharge roller 111, and placed on the bottom surface of the storage section. Next, a paper feed mechanism for continuous paper will be described. First, the paper feeding device on the printer is removed. In FIG. 5B showing this state, the continuous paper 114 supplied from the continuous paper supply port TA and conveyed by the tractor 113 in the direction of arrow c.
Is guided between the platen 107 and the print head 109 by being guided by the paper guide plate 115. Then, the print head 109 is driven, and printing is performed on the continuous paper 114. [0005] The printed continuous paper 114 is discharged from the paper discharge port TC, and is led out of the discharge guide 120 through a passage formed on the upper surface of the printer body. As described above, the paper feeder 101 is selectively attached to the printer main body having the paper feed mechanism for continuous paper, thereby enabling automatic paper feed of cut sheets. However, if it is desired to print continuous paper after printing cut sheets using the paper feeder 101, the paper feeder 101 must be removed from the printer body 117 and stored in a predetermined place. There was an inconvenience of not becoming. In order to solve the above-mentioned disadvantage, as shown in FIG. 5C, when printing is performed on continuous paper with the paper feeding device 101 being attached to the printer main body 117,
There is known an apparatus configured to discharge continuous paper from a cut-sheet paper discharge unit of a paper feeding apparatus 101 (Japanese Patent Laid-Open No. 63-959).
No. 73). However, in the apparatus having such a configuration, when continuous paper is used, even if the leading end of the continuous paper is discharged from the paper discharge port, the continuous paper is stored in the discharged paper storage section. When the paper is hit and bent, the friction between the discharged paper storage unit and the paper hinders the advance of the paper, and the continuously discharged continuous paper is stacked in the discharged paper storage unit. Therefore, while the length of the sheet exiting the discharge port is short, the leading end of the continuous sheet must be picked up and dropped over the upper part of the sheet feeding device to the rear of the sheet feeding device, which is troublesome. Accordingly, the present invention provides a paper ejection mechanism for a printer device that can drop the leading end of the continuous paper beyond the paper feeding device to the rear of the paper feeding device without any trouble even when the continuous paper is used. It is intended to provide. [0011] paper discharge mechanism of the present invention in order to achieve the above object, there is provided a means for solving] are either continuous for paper and cut-sheet for paper
In the printer apparatus that allows to print selectively Meanwhile, the the discharge side of the common discharge roller for discharging the continuous for paper and cut-sheet for paper, to support the rear end of the cut sheet paper that is discharged Clear the gap from the bottom of the stacker and the bottom of the stacker
And a stacker that supports the back of the cut sheet.
Along with arranging a stacker with a car board,
The lower end of the stacker board and the bottom of the stacker
In the meantime, cut sheets from the discharge roller are stacked in the stacker.
-The stacker board while forming a path leading to the bottom
And a position for continuation from the discharge roller.
Configure the path for paper to follow the stacker board
And the paper output path plate that moves to
I have. When the continuous paper is used, a paper discharge path plate is provided immediately after the paper discharge roller over the stacker board, and the leading end of the continuous paper discharged by the paper discharge roller is used. Proceed to the stacker board along the discharge path plate, and proceed upward along the stacker board. This is because the discharge path plate itself immediately after the discharge rollers is gentle, and the connection angle of the surface from the discharge path plate to the stacker board is small, so the discharged continuous sheet traveling upward along the stacker board The weight of the paper is applied to the lower part of the discharged continuous paper that is traveling upward along the stacker board, and the continuous paper is not broken by the paper output path plate supporting it.
The leading end of the continuous paper passes through the upper portion of the stacker board and is guided to the rear of the discharge paper storage unit. Also use cut sheet paper
In some cases, the paper output path plate forms part of the stacker board.
Therefore, the bottom of the stacker follows almost the same path as the continuous paper.
Housed in the department. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to the drawings. In FIG. 1 and FIG.
Feeding means for feeding the cut sheet 1 and the continuous sheet 2; printing means for printing on the cut sheet 1 and the continuous sheet 2; discharge means for discharging the cut sheet 1 and the continuous sheet 2 from the printing means; And a stacker for depositing cut-out forms. The means for feeding the cut sheet 1 includes a hopper 3 for stacking the cut sheet 1. Cut sheet 1 from hopper 3
A sheet feed roller 4 that is rotated by a motor (not shown) to separate the sheets one by one, and a pressing plate 5 that presses the cut sheet 1 against the sheet feed roller 4, and a separating unit 6 that separates the cut sheet 1. is there. At a position where the cut sheet 1 is fed from the hopper 3, there is a paper feed auxiliary roller 7 which is rotated by a motor (not shown), and the feed auxiliary roller 7 rotates to feed the cut paper 1 further. There is a paper feed guide 8 for guiding the voting paper 1 to the printing means. The printing means includes a platen 9 and a print head 10. The platen 9 is rotated by a motor (not shown) to feed the cut sheet 1 and the continuous sheet 2. There is a frame guide 13 and a lower rear portion of a paper output cover 12 that guides the sent cut sheet 1 and continuous paper 2 to a paper output roller 11. The discharge roller 11 is rotated by a motor (not shown) to discharge the cut sheet 1, and the cut sheet 1 is sent to the stacker while being guided to the upper rear side of the discharge cover 12. The stacker has a stacker bottom 14 that supports the rear end of the cut sheet 1 below the discharge roller 11 and a stacker board 15 that is inclined to support the back of the discharged cut sheet 1. There is a possible discharge path plate 16. A tractor 17 is provided as a means for feeding the continuous paper 2 and sends the continuous paper 2 to the printing means. The paper discharge path plate 16 has a plate portion 16a extending over substantially the entire width of the pun rita, a shaft portion 16b on both sides of an upper end portion of the plate portion and a rotation center of the paper discharge path plate 16, and both sides of the plate portion 16a. Has an operation unit 16c protruding upward. The shaft portion 16b of the sheet discharge path plate 16 is rotatably supported by the frames 18 on both sides below the stacker board 15. One end of a torsion coil spring 19 is fitted on both sides of the paper discharge path plate 16, and the other end of the torsion coil spring 19 is fitted to the frame. The paper discharge path plate 16 can hold the lower end of the paper discharge path plate immediately after the paper discharge roller 11 by the torsion coil spring 19. Behind the back side of the paper discharge path plate 16, there is a transverse frame 20 fixed to the frames 18 on both sides, and when the cut sheets 1 are stacked on the stacker, the paper discharge path plate 16 is rotated. Then, a stacker is formed by contacting the back surface of the cut sheet 1 with the transverse frame 20, and the discharge path plate 16 supports a lower portion of the back surface of the cut sheet 1 discharged by the discharge rollers 11. Next, the conveyance of the sheet will be described. When the continuous paper 2 is used, as shown in FIG. 1, the operation section 16c of the paper discharge path plate 16 is operated, the paper discharge path plate 16 is rotated, and the paper discharge path plate 16 and the paper discharge cover 12 are rotated. A paper discharge path is formed on the stacker board 15 immediately after the paper discharge roller 11 by the upper part on the back side of the paper. The continuous paper 2 is sent to the printing means by the tractor 17 and, after printing, is discharged to the stacker by the paper discharge roller 11.
6 and slides up the surface of the stacker board 15 as shown in FIG. 3, crosses the stacker board 15 as shown in FIG. 1, and further passes through the hopper behind the stacker board 15 to the rear of the printer device. Be guided. When the cut sheet 1 is used, the sheet discharge path plate 16 is brought into contact with the transverse frame 20 to form a stacker as shown in FIG. The cut sheet 1 is sent from the hopper 3 to the paper feed auxiliary roller 7, further sent to the printing means and the sheet discharging means, and the leading end of the cut sheet 1 discharged by the sheet discharging roller 11 is discharged. While being guided to the upper rear side of the paper discharge cover 12, it comes into contact with the paper discharge path plate 16 or the stacker board 15, and slides up the stacker board 15.
The rear end of the cut sheet 1 is discharged by the discharge roller 11, falls into the stacker, and is supported by the stacker bottom 14. The stacker board 15 may be a metal fitting for supporting the cut sheet 1. As described above, according to the present invention,
At the bottom of the stacker board that supports the paper surface,
Route the paper to the bottom of the stacker and stack the continuous paper
The discharge path that constitutes the path leading to the car board can be displaced freely
, So we used not only cut sheet paper but also continuous paper.
Even if this is done, it can be
Can be put out. [0032] Moreover, by which is also used stacker to the guide member and the continuous sheet to be deposited supporting the noncontinuous media, it can be correspondingly further reduce the number of parts, printing
Removal of parts caused by selecting the paper to be
Ru can save time and effort. [0033]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a printer device according to an embodiment of the present invention. FIG. 2 is a perspective view of a main part of the printer device. FIG. 3 is a cross-sectional view of the printer device. FIG. 4 is a cross-sectional view of the printer device. FIG. 5 is a cross-sectional view of a conventional example. [Description of Signs] 1 Cut-sheet paper 2 Continuous paper 3 Hopper 11 Discharge roller 14 Stacker bottom 15 Stacker board 16 Discharge path plate

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-215624 (JP, A) JP-A-1-196369 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65H 23/28 B41J 13/00 B65H 23/18

Claims (1)

(57) [Claim 1] In a printer device capable of selectively printing either one of a cut sheet and a continuous sheet, a common apparatus for discharging the cut sheet and the continuous sheet is provided. On the discharge side of the paper discharge roller, a stacker bottom portion that supports the trailing end of the discharged cut sheet paper, and a stacker board that is arranged at an interval from the stacker bottom portion and supports the back surface of the cut sheet paper is provided. While disposing the stacker, between the lower end of the stacker board and the bottom of the stacker,
A position forming a part of the stacker board while forming a path for guiding the cut sheet from the discharge roller to the bottom of the stacker, and a position for forming continuous paper from the discharge roller along the stacker board. A paper discharge mechanism for a printer device, wherein a paper discharge path plate that moves to a position forming a path is pivotally supported.