JP2528287B2 - Recording device - Google Patents

Description

The present invention relates to a recording apparatus capable of accommodating a plurality of recording sheet rolls, and in particular, when the recording sheet rolls are set, the leading edge of the recording sheet can be easily and accurately arranged. The present invention relates to a recording device provided with means capable of cutting.

<Prior Art> In a conventional desktop type recording apparatus such as a facsimile or a printer, a sheet roll of a predetermined size formed by winding a recording sheet into a roll is stored, and the sheet is sequentially fed out. It is configured to record the received image information.

Further, recently, a recording apparatus capable of storing two sheet rolls has been developed in order to improve the drawbacks that occur when one sheet roll is stored (for example, Japanese Patent Application No. 61-102079). ).

<Problems to be Solved by the Invention> However, in a recording apparatus capable of accommodating two recording sheet rolls as described above, if the leading end of the recording sheet pulled out from the sheet roll is not cut cleanly, the platen roller When the leading edge of the recording sheet enters between the recording head and the recording head, there is a risk of jamming or skewing. Also, if the tip of the recording sheet cut correctly near the tip of the sheet guide is not always waiting,
When the recording cover is closed, the leading edge of the sheet is pinched between the platen roller and the recording head, and the recording sheet that was accidentally pinched when transporting another recording sheet is also sent. There was a problem such as.

Further, in order to solve these problems, scissors and the like must be prepared separately in order to cleanly cut the leading edge of the recording sheet, and the work is troublesome.

The present invention is to fundamentally improve these problems in the related art, and particularly to provide an apparatus capable of easily and surely cutting the leading end of the recording sheet of the set recording sheet roll. .

<Means for Solving Problems> A typical configuration according to the present invention for achieving the above object is a recording apparatus which conveys a recording sheet to a recording unit and records an image according to image information. A sheet holder that can open and close the one housing and the second housing, and can store the recording sheet wound in a roll shape, and a feed member that conveys the recording sheet stored in the sheet holder to a recording unit. A recording head for recording on a recording sheet in the recording unit, a platen for guiding the recording sheet to a position facing the recording head, and a platen arranged upstream of the recording unit and downstream of the feed member, A guide member that guides a recording sheet conveyed by a feed member to the recording unit, and a guide member that is arranged upstream of the recording unit and downstream of the feed member. Therefore, a cutting means for cutting the guided recording sheet is provided.

The cutting means is used to cut the leading end of the recording sheet loaded in the sheet holder with the first housing and the second housing opened, and the leading end is cut by the cutting means. The recording sheet includes the first casing and the second casing.
When the housing is closed, the feed member is configured to convey the recording portion.

<Operation> According to the above configuration, since the cutting unit for cutting the recording sheet is arranged on the upstream side of the recording unit and on the downstream side of the feed member, the roll-like member loaded in the sheet holder by the cutting unit. The leading edge of the recording sheet can be easily and cleanly cut, and the leading edge of the recording sheet conveyed by the feed member after the sheet is loaded is prevented from jamming or skewing when entering the recording portion. can do. Furthermore, in a recording apparatus in which two roll-shaped recording sheets can be loaded, it is possible to prevent the two roll-shaped recording sheets loaded in individual sheet holders from being conveyed at the same time. it can.

<Embodiment> An embodiment in which the above-described means of the present invention is applied to a facsimile will be described below.

FIG. 1 is a perspective explanatory view of a recording apparatus according to an embodiment of the present invention with a second housing opened, FIG. 2 is a sectional view of the same, and FIG. 3 is a sectional view of a second housing closed. FIGS. 4 and 5 are explanatory views for setting a recording sheet, FIG. 5 is an explanatory view of an embodiment in which one of the feed roller pairs provided in the first casing is provided in the second casing side, FIGS. FIG. 9 is an explanatory view of the essential parts showing the respective embodiments of the present invention.

In the figure, a first housing A serving as a main body of the apparatus and a second housing B serving as a lid thereof are pivotally attached by a shaft 1 and can be opened and closed centering on the shaft 1. Further, a spring 2 is provided on the shaft 1 which serves as the center of rotation, and a hook 3 for engaging with each other is provided at the open ends of the casings A and B. When the hook 3 is released from engagement, The second housing B is configured to be released from the first housing A by the bias of the spring 2.

Further, the first housing A is provided with two drop-in type sheet holders 6 and 7 in parallel which can individually store sheet rolls 4a and 5a of various sizes in which recording sheets 4 and 5 are wound in a roll shape. Has been. One of the recording sheets 4 and 5 stored in the sheet holders 6 and 7 is conveyed to the recording unit 8 by a selection signal from a control unit (not shown), and a predetermined image is recorded in the recording unit 8. The recording sheet after recording is cut from the trailing edge of the image by the cutter 9 provided in the first housing A, and is ejected to the outside of the apparatus by the ejection roller pair 10 also provided in the first housing A. ing.

The recording unit 8 presses the platen roller 8a, which is a platen that conveys the recording sheets 4 and 5 at a constant speed, and the roller 8a as shown in FIG. 3, and heats the recording sheet composed of a heat sensitive sheet according to the image information. And a line type recording head 8b. The platen roller 8a is arranged in the first housing A, the recording head 8b is arranged in the second housing B, and both housings A,
When B is closed, both are pressed against each other by a pressing spring 8c attached to the back surface of the recording head.

The recording sheets 4 and 5 are conveyed to the recording unit 8 by feed roller bodies 11 and 14 which are feed members, respectively.
A feed roller pair 11 that conveys the recording sheet 4 stored in a sheet holder 6 (hereinafter, referred to as a “first holder”) closer to the recording unit 8 includes a first holder 6 of the first housing A and a platen roller 8a. The feed roller pair 11 is provided between
Between the platen roller 8a and the platen roller 8a, a sheet presence / absence detection sensor 13a and a sheet width detection sensor 1 are provided via a sheet guide 12.
3b is provided. The feed roller pair 14 that conveys the recording sheet 5 stored in a sheet holder (hereinafter referred to as “second holder”) 7 that is farther from the recording unit 8 is on the side of the second housing B and includes the recording head 8b and the second head. A sheet presence / absence detection sensor 16a provided between the feed roller pair 14 and the recording head 8b is provided between the holder 7 and the recording head 8b.
Also, a sheet width detection sensor 16b is provided.

Further, the platen roller 8a and the feed roller pair 11,1
A drive system and a control unit (not shown) for driving and rotating 4 are provided in the first housing A.

In the figure, C is an original conveying system, and an original 18 placed on an original placing table 17 formed on the upper surface of the second casing B and guided on both sides by the original side guides 17a separates the original 18 from the separating roller 19. Separated one by one by the transfer roller
It is configured so that it is conveyed at a constant speed to the left side of the drawing at 20 and is discharged to the discharge tray 22 by the discharge roller 21. Also, the original
Light is emitted from the light source 23 of the document reading system D while the document 18 is being conveyed, and the reflected light is reflected by a plurality of mirrors 24 and lenses.
The image of the original 18 is read via an image reading element 26 such as a CCD via 25, and the image signal is transmitted to a predetermined recording system.

Next, regarding the specific configuration of the cutting means according to the present invention,
This will be described with reference to FIGS. 6 to 9.

The cutting means is a sheet guide 15 as a guide member.
The leading end of the roll-shaped recording sheet 5 guided by the above is simply and neatly cut, and in this embodiment, the downstream side (recording sheet exit side) end of the sheet guide 15 is cut as shown in FIG. By making it sharp, a sharp end 15a is formed as a cutting means. The tip portion 15a as the cutting means is arranged on the upstream side of the recording portion including the platen roller 8a and the recording head 8b and on the downstream side of the feed roller pair 14. Therefore, the tip end of the roll-shaped recording sheet 5 loaded in the sheet holder 7 and guided by the sheet guide 15 can be cut cleanly and easily by the pointed portion 15a. Further, since the front end of the sheet after cutting is located on the upstream side of the vicinity of the pressure contact portion between the platen roller 8a and the recording head 8b when the second housing B is closed, even if the platen roller 8a rotates, the sheet is conveyed. It is possible to prevent jamming and skewing when the sheet is conveyed by the feed roller pair 14 and enters the pressure contact portion.

Moreover, the cutting means according to the present invention is not limited to the above-mentioned configuration. For example, as shown in FIG. 6, the downstream side (recording sheet exit side) end of the sheet guide 15 may be formed into a saw blade shape to form a saw blade portion 15c as a cutting means. Alternatively, as shown in FIG. 7 and FIG. 9, a cutting member 15b as a cutting means may be attached to the tip of the sheet guide 15. In this case, various materials and shapes that can easily and cleanly cut the leading edge of the recording sheet are effective. However, for example, a thin metal member may be attached to the leading edge of the sheet guide by spot welding. Further, the tip portion of the cutting member 15b may be formed in a pointed shape or a saw blade shape as described above. With this configuration, the same effect as the above-described effect can be obtained.

 Next, the operation of the apparatus configured as described above will be described.

First, when setting the sheet roll, the hook 3 is unlocked to open the second casing B, the A4 size sheet roll 4a is housed in the first holder 6, and the leading end of the sheet is fed to the feed roller pair 11. Through the space between the sheet guide 12 and the tip. Similarly, for example, a B4 size sheet roll 5a is housed in the second holder 7, the leading end of the sheet is passed between the feed roller pair 14, and is cut by the pointed portion 15a formed at the leading end of the sheet guide 15. The tip of the cut sheet 5 is cut substantially perpendicular to the sheet advancing direction, and the tip is cleanly set, and the tip of the sheet 5 is set in the vicinity of the pointed end 15a of the sheet guide 15.

After setting the sheet as described above, the second housing B is closed and the manual cutting operation is performed.

To explain this operation, first, the feed roller pair 11 and the platen roller 8a rotate in the direction of the arrow shown in FIG. 3 to convey the recording sheet 4 to the cutter 9 and the discharge roller pair 10, and the cutter 9 cuts the leading edge of the recording sheet. To do. Further, the cut recording sheet 4 is discharged to the outside of the apparatus, and the platen roller 8a and the feed roller pair 11 are rotated in the opposite direction to rewind the leading end of the recording sheet 4 to the vicinity of the leading end of the sheet guide 12 to be in a standby state. To do. Next, for the recording sheet 5, the feed roller pair 14, the platen roller 8a, and the cutter 9 are operated in the same manner as described above to cut the leading edge of the recording sheet 5, and the leading edge of the recording sheet after cutting up to the tip of the sheet guide Rewind and wait. As described above when performing this operation, the leading edge of the recording sheet 5 is cut at a right angle to the sheet traveling direction and in a clean state, so that the recording sheet 5 smoothly enters between the platen roller 8a and the recording head 8b. You can, and no jams or skews will occur.

Also, the standby position of the sheet 5 when setting is the platen roller
Since the sheet 4 is located upstream of the pressure contact portion between the recording head 8b and the recording head 8b, the sheet 4 is not conveyed together.

By the above manual cutting operation, the leading ends of the recording sheets 4 and 5 are cleaned, and by controlling the rotation amounts of the platen roller 8a and the feed rollers 11 and 14, the leading ends of the recording sheets are brought to an accurate standby position.

Next, at the time of recording, if the image information of A4 size is received, the sheet width detection sensor 13b detects that the width of the recording sheet 4 is A4 size, and the feed roller pair 11 causes the arrow of FIG. The recording sheet 4 is conveyed to the recording unit 8 by rotating in the direction. When the leading edge of the recording sheet 4 is conveyed to the pressure contact portion between the platen roller 8a and the recording head 8b, the driving of the feed roller pair 11 is stopped and at the same time the platen roller 8a rotates in the direction of the arrow in FIG. 4 is conveyed at a constant speed. In synchronization with this conveyance, the recording head 8b generates heat in accordance with the image information, and the heat generation records the received image information on the recording sheet 4. At this time, the feed roller pair 11 revolves as the recording sheet 4 is conveyed.

When the recording of the image information received as described above is completed,
The recording sheet 4 is conveyed and cut until the trailing edge of the image reaches the cutter 9, and the recorded recording sheet is discharged from the discharge roller pair.
At 10 the sheet is discharged to the outside of the apparatus, and the platen roller 8a and the feed roller pair 11 rotate in the direction opposite to the arrow in FIG.

Recording of the A4 size received image is completed as described above.
When the received image is B4 size, the sheet width detection sensor 16b detects that the recording sheet 5 is B4 size, and the feed roller pair 1 is attached to the recording sheet 5.
4, the recording unit 8 and the cutter 9 operate in the same manner as described above to perform B4 size recording on the recording sheet 5.

Next, in jam processing or the like, the hook 3 is released from the lock and the second housing B is opened. At this time, since the respective feed roller pairs 11 and 14 are separately provided in the first casing A and the second casing B, the recording sheet 4 is provided on the first casing A side as shown in FIG. The recording sheet 5 is divided into the second housing B side. Therefore, when jamming one recording sheet or the like, the other recording sheet does not get in the way, and the sheet rolls 4a and 5a can be individually replaced. Further, when the second housing is opened, the respective sheet rolls 4a and 5a can be seen at the same time, so that it is possible to easily confirm the remaining amount of rolls.

Also when setting with the sheet roll, the platen roller 8a and the recording head 8b of the recording unit 8 are separately provided in the first casing A and the second casing B, and the cutter 9 is provided on the first casing A side. As shown in FIG. 4, for example, the leading end of the recording sheet 4 to be set is passed between the feed roller pair 11 and the gap between the cutters 9 and the discharge roller pair 10 along the platen roller 8a. It is possible to set the recording sheet 4 easily and surely by guiding to, and it is possible to easily prevent the recording sheet 4 from being obliquely set at the time of setting.
The same applies when the platen roller 8a of the recording unit 8 is provided in the second housing B and the recording head 8b is provided in the first housing A.

Further, by providing a drive system such as the feed roller pairs 11 and 14 and the platen roller 8a in the first housing A, the space can be effectively used and the weight of the second housing B can be reduced, so that the entire apparatus is small. It will be.

When the recording sheet 4 is set or jammed, as shown in FIG. 5, one drive roller 11a of the feed roller pair that conveys the recording sheet 4 is attached to the first casing A.
A pressure roller 11b provided on the side of the second housing B, which is in pressure contact with the roller.
With the configuration provided on the side, the recording sheet 4 is in a free state when the second housing B is opened, which facilitates setting and jam processing. In this case, it is effective to set a frequently used recording sheet in the first holder 6.

Further, in the above-described embodiment, when the holders 6 and 7 house the sheet rollers of the same size, either one of the recording sheets, for example, the recording sheet 4 is used for recording. When the recording sheet 4 is used up, the sheet presence sensor 13a detects this and the control section can use the other recording sheet 5. In this case, the recording sheet 5 has a function as a spare.

Further, in the above-described embodiment, the sheet holders are provided on the first housing A side by side in the left and right, but they may be provided side by side in the vertical direction.

Further, in the above-described embodiment, the platen and the feed member are each constituted by a roller, but as another example, a rotary belt suspended by a pulley or the like may be used.

Further, in the above-described embodiment, the example of the sheet guide 15 is shown, but the same can be done for the guide plate above the sheet guide 12.

At this time, when the recording sheet 4 is set, the recording sheet 4 is cut by the tip of the sheet guide 12 as in the case of setting the sheet 5, and at the time of manual cutting, the feed roller pair 11 moves the sheet 4 between the roller 8a and the recording head 8b. Let it in,
It is also possible to perform the same operation as the recording sheet 5 thereafter.

<Effects of the Invention> As described above, according to the present invention, since the cutting means for cutting the recording sheet is arranged on the upstream side of the recording portion and on the downstream side of the feed member, the cutting means The leading end of the roll-shaped recording sheet loaded in the sheet holder can be easily and cleanly cut, and the leading end of the recording sheet conveyed by the feed member after the sheet is loaded may jam when entering the recording unit, It is possible to prevent skewing. Furthermore, in a recording device that can load two roll-shaped recording sheets,
It is possible to prevent the two roll-shaped recording sheets loaded in the individual sheet holders from being conveyed at the same time.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view of a recording apparatus according to an embodiment of the present invention with a second housing opened, FIG. 2 is a sectional view thereof, and FIG.
FIG. 4 is a cross-sectional view of the second housing in a closed state, FIG. 4 is an explanatory view of setting a recording sheet, and FIG. 5 is one of feed roller pairs provided in the first housing on the second housing side. FIGS. 6 to 9 are explanatory views of the provided embodiments, and FIGS. 6 to 9 are explanatory views of the essential parts showing the embodiments of the present invention. A is the first housing, B is the second housing, C is the original feeding system, D is the reading system, 1 is the axis, 2 is the spring, 3 is the hook, 4,5 is the recording sheet, and 4a and 5a are sheet rolls. , 6,7 are roll holders,
8 is a recording unit, 8a is a platen roller, 8b is a recording head, 9
Is a carter, 10 is a pair of discharge rollers, 11 is a pair of feed rollers, 12 is a sheet guide, 13a and 16a are sheet presence / absence sensors, 13b and 16b are sheet width detection sensors, 14 is a feed roller pair, 15 is a sheet guide, and 15a is A pointed portion, 15b is a cutting member, and 15c is a saw blade portion.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akio Okubo, 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (56) References: 58-95949 (JP, U)

Claims (2)

(57) [Claims] 1. A recording apparatus which conveys a recording sheet to a recording unit to record an image according to image information, wherein a first casing and a second casing can be opened and closed, and a roll is wound. A sheet holder that can store the recording sheet, a feed member that conveys the recording sheet stored in the sheet holder to the recording unit, a recording head that records on the recording sheet in the recording unit, and a recording sheet that is the recording head. A platen for guiding to a counter position; a guide member arranged upstream of the recording unit and downstream of the feed member for guiding a recording sheet conveyed by the feed member to the recording unit; And a cutting unit that is arranged upstream of the feed member and downstream of the feed member and cuts the recording sheet guided by the guide member. To the recording device. 2. The cutting means is used to cut the leading end of a recording sheet to be loaded in the sheet holder with the first casing and the second casing opened, and the leading end is cut by the cutting means. The cut recording sheet is configured to be conveyed to the recording unit by the feed member when the first casing and the second casing are closed. Recording device.