JP2917204B2 - Recording paper discharge structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording paper discharging structure for discharging a roll-shaped recording paper used from a rear side, which is used in a facsimile machine or a printer.

[0002]

2. Description of the Related Art For example, in a facsimile apparatus, a recording paper discharge structure is provided with a storage section for storing a roll of recording paper, and the leading end of the recording paper is nipped and pulled out by a platen roller in contact with a head for printing. After the paper is discharged from the recording paper discharge port provided at the rear of the housing, it is cut by a cutter to a certain length.A stacker for placing the discharged recording paper is placed outside the recording paper discharge port. Is provided.

[0003]

However, in the above-described conventional recording paper discharge structure, the recording paper is easily curled immediately before the recording paper discharge port, and jamming occurs inside the apparatus, preventing normal discharge. There was such a problem. The stacker provided in the rear discharge type recording paper discharge structure has a tip inclined upward so that the recording paper discharge state and the like can be seen from the operation side, that is, from the front of the apparatus, and the recording paper of the stacker. The discharge port side is set lower than the lower end of the recording paper discharge port in order to avoid contact with the lower end of the cover that opens and closes. For this reason, even immediately after the recording paper discharge port, there is a problem that curling is easily generated and the recording paper is dropped from the stacker.

Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a recording paper discharge structure in which curl is corrected to prevent defective discharge. .

[0005]

In order to achieve this object, according to the first aspect of the present invention, the leading end of a roll-shaped recording paper housed inside the recording paper is discharged from a recording paper discharge port at the rear of the apparatus. In the discharge structure, a horizontal recording paper guide immediately before the recording paper discharge port, and an upper end facing the recording paper guide
There a paper discharge guide intervals formed to become narrower toward <br/> the paper exit so that the recording sheet is fed obliquely downward is fixed is in contact with gradually recording paper guide, the
The paper ejection guide is larger than the rigidity of the recording paper and can be elastically deformed.
It was formed by a functional film . The invention according to claim 2 is the invention according to claim 1, wherein
Provided with a openable cover near the paper exit as a rotation fulcrum, the leading end by supporting the both ends is placed a recording sheet discharged to the outside of the paper exit in the apparatus is inclined upwardly stacker And a resiliently deformable recording paper mounting portion which is raised above the center of the stacker so that the height of the recording paper discharge port is substantially the same as the lower edge of the recording paper discharge port.

[0006]

According to the present invention, the leading end of the curled recording paper is
When the paper passes between the recording paper guide and the paper ejection guide, the curl is corrected by the paper ejection guide whose distance from the recording paper guide becomes gradually smaller. Further, according to the present invention, since the recording paper discharge port side of the recording paper stacking portion of the stacker substantially coincides with the lower end edge of the recording paper discharge port, the recording paper discharged from the recording paper discharge port is not affected. The sheet is discharged onto the stacker without curling and in a direction opposite to the curling direction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of a rear side of a facsimile apparatus employing a recording paper discharging structure according to the present invention, FIG. 2 is a state in which a cover is similarly opened, and FIG. 3 is an overall perspective view similarly viewed from the rear side. . In these figures, the reference numeral 2 designates a substantially box-shaped lower case, 3 designates a roll paper storage portion formed in a semi-cylindrical shape, and 4 designates a roll paper 5 in the roll paper storage portion 3.
Is a guide portion integrally formed so as to protrude in a direction in which the guide portion is pulled out.

Reference numeral 7 denotes a pair of side frames fixed to both side surfaces of the lower case 2, reference numeral 8 denotes a platen roller rotatably supported between the side frames 7, reference numeral 9 denotes a fixed blade fixed between the side frames 7. Reference numeral denotes a movable blade which reciprocates on the fixed blade 9 from the front to the rear of the drawing and cuts the recording paper 6 drawn from the roll paper 5 into one piece of information. Reference numeral 11 denotes a recording paper guide fixed horizontally to the side frame 7 via a bracket 12 and having a pair of vertical fitting grooves 11a formed at the rear. Reference numeral 13 denotes a paper discharge guide bracket in which legs 13a at both ends are mounted upright on the recording paper guide 11, and a paper discharge guide 15 formed of a film-like plastic faces the recording paper guide 11, and will be described later. The recording paper discharge port 25 is attached so as to be inclined so as to gradually narrow the interval.

Reference numeral 17 denotes a shallow dish-shaped cover. The cover 17 is provided with a pair of hinge plates 18 attached to both side surfaces of the cover 17.
The upper opening of the lower case 2 can be freely opened and closed by rotating about a support rod 19 spanned between the side frames 7. 20 is formed on the cover 17 so as to protrude therefrom.
A lower end portion is a guide projection facing the guide portion 4 when the shutter 7 is closed. 21 is a mounting plate fixed to the hinge plate 18;
Reference numeral 22 denotes a thermal head fixed to the mounting plate 21 via the bracket 23 and pressed against the platen roller 8 when the cover 17 is closed. Reference numeral 24a denotes the platen roller 8 and the movable blade 1.
The movable blade 10 is fixed to the mounting plate 21 via the bracket 24 so as to be positioned between
It is a paper presser plate that stabilizes the cutting at.

[0010] The rear cover 17 is provided with a paper exit 25 formed in the elongated rectangular shape, the recording paper guide 11 and the discharge guide 15 previously described, the recording sheet discharge port 2
It is arranged immediately before 5. Reference numeral 26 denotes a stacker entirely formed of a flexible metal bar, which is formed in an M-shape in plan view, and includes frame portions 27 on both sides and a mounting portion 28 at the center.
At both ends of the frame portion 27, a vertically downwardly bent attachment portion 2
The stacker 26 is attached to the outside of the recording paper discharge port 25 with its tip inclined obliquely upward by fitting this mounting portion 27a into the fitting groove 11a of the recording paper guide 11. . The mounting portion 28 is formed so as to slightly lift up from the frame portion 27 as shown in FIG. 1, and when the stacker 26 is attached to the recording paper guide 11, the leading end on the recording paper discharge port 25 side The portion 28 a is located at the same height as the lower end of the recording paper discharge port 25. Reference numeral 30 denotes a telephone handset.

Next, the operation of discharging the recording paper in the facsimile apparatus having such a configuration will be described. In FIG.
The recording paper 6 pulled out from the roll paper 5 stored in the roll paper storage unit 3 passes through both the guide units 4 and 20, is sandwiched between the thermal head 22 and the platen roller 8, and is printed by the thermal head 22. The leading end of the printed recording paper 6 passes through the movable blade 10 and the discharge guide 15 and the recording paper guide 1.
1, the interval between the paper ejection guide 15 and the recording paper guide 11 is formed so as to be gradually narrowed toward the recording paper ejection port 25. Even in this state, the curl is corrected when the recording paper 6 passes through the paper ejection guide 15 and the recording paper guide 11 due to the paper output output by the platen roller 8 and the stiffness of the recording paper 6.

The paper ejection guide 15 and the recording paper guide 1
1 is provided immediately before the recording paper discharge port 25,
The curled recording paper 6 is discharged from the recording paper discharge port 25 without jam. The recording paper 6 discharged from the recording paper discharge port 25 is placed on the placing portion 28 of the stacker 26. At this time, since the leading end 28a of the placing section 28 is located at the same height as the lower end of the recording sheet discharge port 25, the recording sheet 6 is placed on the placing section 28 without curling again. Further, since the stacker 26 is inclined obliquely upward and the inclined direction of the stacker 26 is different from the inclined direction of the discharge guide 15, the recording paper 6 passing through the recording paper discharge port 25 is curved in a direction opposite to the curl direction. The curl is corrected by this.

Next, a case in which the cover 17 is opened due to replacement of the roll paper 5 or paper jam will be described with reference to FIG. When the cover 17 is opened around the support rod 19, the cover 1
7 is in contact with the mounting portion 28 of the stacker 26. Since the entire stacker 26 is formed of a flexible metal rod, the mounting portion 28 is elastically deformed with respect to the frame portion 27. Therefore, since the state is changed from the two-dot chain line to the solid line, the mounting portion 28 is not damaged when the cover 17 is opened.

In the present embodiment, the paper ejection guide 15 is formed of a plastic film. However, the present invention is not limited to this. Any member having a rigidity slightly larger than the rigidity of the recording paper 6, that is, the rigidity of the recording paper 6, can be used. Of course it is good.

[0015]

As described above, according to the first aspect of the present invention,
According to Ming, in a recording paper discharge structure for discharging the leading end of a roll-shaped recording paper housed from the recording paper discharge port at the rear of the apparatus, a horizontal recording paper guide immediately before the recording paper discharge port, The upper end is fixed opposite to the recording paper guide and is slanted.
As the distance between the gradual recording paper guide toward the paper exit so that the recording sheet is fed downward in contact is narrowed
And a discharge guide which is formed in, serial this discharge guide
For films that are larger than the rigidity of recording paper and can be elastically deformed
Therefore, the curl at the leading end of the recording paper is corrected when passing between the recording paper guide and the paper ejection guide,
Since the recording paper is discharged from the recording paper discharge opening while being corrected, normal discharge can be performed without jamming in the apparatus.

According to the second aspect of the present invention, the recording
The neighborhood paper outlet provided with a openable cover as a rotation fulcrum, a stacker front end is inclined upward by supporting the recording sheet discharged to the outside of the recording sheet discharge port placed to device both ends provided, by providing the recording sheet discharge port side bottom edge and substantially elastically deformable paper mounting part lifted upward to match the height of the paper exit in the central portion of the stacker, a recording paper discharge Record of passing exit
Since the paper is curved in a direction opposite to the direction in which the paper curls , curling on the stacker can be prevented , and breakage of the stacker when the cover is opened can be prevented.

[Brief description of the drawings]

FIG. 1 is a sectional view of a rear portion of a facsimile apparatus employing a recording paper discharging structure according to the present invention.

FIG. 2 is a cross-sectional view of a rear portion of the facsimile apparatus employing the recording paper discharge structure according to the present invention with a cover opened.

FIG. 3 is an overall perspective view of the facsimile apparatus employing the recording paper discharging structure according to the present invention as viewed from the rear of the facsimile apparatus.

[Explanation of symbols]

2: Lower case, 5: Roll paper, 6: Recording paper, 11:
Recording paper guide, 11a: fitting groove, 15: paper ejection guide, 1
7: Cover, 22: Thermal head, 25: Recording paper discharge port, 26: Stacker, 27a: Mounting part, 28: Recording paper mounting part.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-58535 (JP, A) JP-A-3-293256 (JP, A) JP-A 62-94851 (JP, U) JP-A 6-94851 54652 (JP, U) Actually open 1986-201847 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65H 29/00-31/40

Claims (2)

(57) [Claims] 1. A recording paper discharge structure for discharging the leading end of a roll-shaped recording paper housed therein from a recording paper discharge port at the rear of the apparatus, wherein a horizontal recording paper guide is provided immediately before the recording paper discharge port; The upper end is fixed facing the recording paper guide and
The distance between the recording paper guide and the recording paper guide gradually decreases so that the recording paper fed downward comes into contact with the recording paper discharge port .
And a discharge guide which is urchin formed, the sheet discharge guide
An elastically deformable film that is larger than the rigidity of the recording paper
A recording paper discharging structure characterized by being formed by: 2. An exhaust structure of the recording paper according to claim 1, the vicinity of the paper exit provided with a openable cover as a rotation fulcrum, the recording sheet discharged to the outside of the paper exit By placing it and supporting both ends of the device
Ri tip provided stacker inclined upwardly, placing the paper exit side elastically deformable paper lifted upward the lower end edge and the height of the paper exit coincides substantially within the central portion of the stacker part A recording paper discharging structure characterized by having a recording paper.