JP2589577B2 - Recording device - Google Patents

Description

The present invention relates to a recording apparatus capable of feeding and recording a recording sheet on a supply tray, and more particularly, to attaching and detaching an auxiliary tray to and from the supply tray. It relates to a recording device that can be used.

<Prior Art> Today, image recording apparatuses such as copiers and facsimile machines are widely used. In these recording apparatuses, a cassette in which general-purpose sheets are stacked and stored is loaded into the apparatus main body, and the sheet is stored in the cassette. Are separated and fed one by one to record.

Further, in the apparatus, a manual feed slot of a sheet is provided so that recording can be performed on a sheet other than a general-purpose size, and recording sheets of various sizes can be fed and recorded from the manual feed slot. Is common.

A manual feed tray is attached to the manual feed opening to facilitate manual feeding, and an auxiliary tray can be connected when long-sized sheets are placed on the manual feed tray.

<Problem to be Solved by the Invention> In the above-described apparatus, when the auxiliary tray is not used, the auxiliary tray is removed from the manual feed tray and used. However, if the removed auxiliary tray is placed on a desk or the like, it becomes obstructive or lost. Or you may.

Also, if the removed auxiliary tray is stored in a desk or the like, it must be taken out or stored each time it is used, and there has been a problem that handling is poor.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems and to provide a recording apparatus capable of improving the handleability of an auxiliary tray and preventing the auxiliary tray from being lost.

<Means for Solving the Problems> A typical configuration according to the present invention for achieving the above object includes a recording unit for recording an image on a recording sheet, and a recording sheet to be supplied to the recording unit. Tray, an auxiliary tray that can be attached to and detached from the sheet supply tray, a discharge tray on which recorded and discharged recording sheets are placed, and a back side of the discharge tray, which stores the auxiliary tray. And a tray accommodating section for the same.

<Operation> In the above-mentioned means, when the auxiliary tray is not used, it is removed from the supply tray and stored in the tray storage section. Thus, the supply tray can be compactly stored, and the removed auxiliary tray does not become a hindrance and can be prevented from being lost.

Further, by providing the tray accommodating portion on the discharge tray for recording sheets, it becomes possible to accommodate the auxiliary tray so as to overlap the discharge tray, and it is not necessary to add a special space to the apparatus main body as an auxiliary tray accommodating space.
Further, since the auxiliary tray is accommodated at the discharge tray position, handling becomes easy.

<Embodiment> Next, an embodiment according to the present invention in which the above means is applied to a facsimile machine will be described.

FIG. 1 is an explanatory perspective view of a manual feed portion and a discharge portion of a recording sheet, FIG. 2 is an explanatory sectional view of the entire apparatus, and FIG.

First, the overall configuration of the apparatus will be described. A is a document reading unit that reads information written on a document, converts the information into an electric signal, and transmits the signal to a predetermined recording system.
A recording unit B records an image on a recording sheet conveyed according to an image signal. Reference numeral C denotes a recording sheet transporting unit, which stores recording sheets stored in a cassette or recording sheets supplied from a manual insertion slot.
And discharges the printed sheet.

In FIG. 3, D is an operation panel provided with the number of recordings and recording density, or a transmission switch, and E is a telephone. This recording apparatus has several stages of storage shelves inside, and is placed on an apparatus mounting table G capable of storing spare recording sheets and the like by opening and closing a door F.

Hereinafter, the configuration of each unit of the recording apparatus will be described in order.

(Document reading means)

As shown in FIG. 2, the configuration of the document reading means A is such that a document table 1 is formed on the upper surface of the apparatus, and
The lowermost original 3 of the originals 3 stacked and placed with the original surface facing down and guided by the side guides 2 is preliminarily conveyed by a preliminary conveying roller 4a and a pressing member 4b pressed against the original, and a separation roller 5a The sheet is separated one by one by a press-contact member 5b press-contacting the sheet and fed in the direction of arrow a in FIG. The separated and fed original 3 is transported by the transport roller 6a.
The document surface is pressed by a reading glass 8c by a pressing member 8b made of a white polyester film which is conveyed by a pinch roller 6b pressed against the spring by a spring 7 and pressed downward by a weight shaft 8a, and passes through the glass 8c. Occasionally
The light from the light emitting member 8d such as an LED is irradiated, and the reflected light from the original surface forms an image on a photoelectric conversion element 8f such as a CCD via a lens 8e, so that the image described on the original is converted into an electric signal. It is configured as follows. In this embodiment, a contact type reading sensor using a short focus imaging lens is used as the lens 8e.

The original 3 from which the image is read by the optical means is a discharge roller 9a and a pinch roller pressed against the discharge roller 9a by a spring 7.
The document is discharged to the document discharge tray 10 by 9b.

(Recording means)

The recording unit B is configured as a laser beam printer in this embodiment. To explain the configuration, a charger 12 disposed around a photosensitive drum 11 rotating in the direction of arrow b.
The polygon mirror mirrors the light from a laser oscillator 13 that charges the drum surface with a laser beam and oscillates a laser beam according to the image signal.
The latent image is reflected at 14 and is exposed to the rotating drum 11 to form an electrostatic latent image, and the latent image is visualized by a developing unit 15 with toner. Further, the toner image is transferred and recorded on the recording sheet 17 conveyed between the photosensitive drum 11 and the transfer roller 16 pressed against the photosensitive drum 11. Further, the photosensitive drum 11 after the toner transfer is configured to be cleaned by the cleaning member 18.

The photosensitive drum 11, the charger 12, the developing unit 15, and the cleaning member 18 are housed in a recording cartridge 19, and the cartridge 19 is housed in a detachable manner from the apparatus main body as described later.

[Recording sheet conveying means]

Next, the recording sheet conveying means C will be described. A cassette 20 is removably attached to a lower portion of the apparatus main body, and recording sheets 17 made of cut sheets are stacked and stored in the cassette 20. As shown by an arrow c in FIG. 2, this recording sheet 17 is fed by a half-moon-shaped feeding roller 21 to feed one of the uppermost layers, and is conveyed after being registered by a pair of cassette conveying rollers 22a and 22b pressed against each other. Further, the photosensitive drum 11 is transported in synchronization with the rotation of the photosensitive drum 11 by a transport roller pair including a driving roller 23a and a pinch roller 23b.
An image is recorded when the sheet 17 passes between the transfer roller 16 and the recording sheet, and the heat and pressure are applied to the sheet 17 after recording, when the sheet 17 passes between a fixing roller 25a having a built-in heater 24 and a pressure roller 25b pressed against the sheet. The image is fixed and discharged to a recording sheet discharge tray 27 by discharge roller pairs 26a and 26b.

In Fig. 2, a manual outlet is provided on the left side of the main unit.
A manual feed tray 29 is attached to the manual feed opening 28. The manual feed tray 29 is mounted so as to be rotatable about a shaft 30. When the manual feed tray 29 is in use, the tray 29 is turned down as shown in FIG. The sheet is separated one by one by a separating member 31 pressed against 23a, and the conveying roller pair 23
It is configured to be conveyed to the recording position by a and 23b.

[Manual tray and auxiliary tray]

Here, the manual tray 29 will be described in detail. As shown in FIG.
Slide guide 29 that can slide in the direction of arrow 29a and arrow d
And is configured to guide the side end of the recording sheet 17 placed on the tray 29. A fitting recess 29c is provided at the tip of the rotation of the tray 29.
9c is configured so that the fitting projection 32a of the auxiliary tray 32 can be fitted. That is, the auxiliary tray 32 can be connected to the manual feed tray 29 by fitting the fitting convex portion 32a of the auxiliary tray 32 to the fitting concave portion 29c of the manual tray 29, and the manual tray 29 is extracted by extracting the auxiliary tray 32. It is configured so that it can be detached from.

Therefore, when the size of the recording sheet 17 placed on the manual feed tray 29 is long, the recording sheet 17 can be securely placed on the tray by connecting the auxiliary tray 32 to the manual feed tray 29, and can be manually fed. It is. In addition, when the size of the recording sheet 17 is short, by removing the manual feed tray 29, useless space for loading the recording sheet can be eliminated, and when the manual tray 29 is not used, the auxiliary tray 32 can be removed. Can be stored compactly,
There is no need to make useless space in the apparatus body or increase the size of the entire apparatus.

On the lower surface of the recording sheet discharge tray 27 located above the manual feed tray 29, as shown in FIG. I have. This locking member 33 is used for the auxiliary tray 32
The auxiliary tray 32 removed from the manual feed tray 29 is tapered (left end in FIG. 1).
2 and 3, the auxiliary tray 32 can be stored under the recording sheet discharge tray 27 by being inserted and locked between the key-shaped locking members 33.

By providing the accommodating portion for the auxiliary tray 32 as described above, the auxiliary tray 32 removed from the manual feed tray 29 does not become a hindrance and can be prevented from being lost.
In general, the width and length of the discharge tray 27 are substantially the same as or slightly larger than the width and length of the manual feed tray 29, since the discharge tray 27 reloads the recording sheets 17 stacked on the manual feed tray 29. By providing the storage portion on the lower surface of the recording sheet discharge tray 27 located above the manual feed tray 29, both are stored so as to overlap each other and can be stored compactly in space. Further, it is not necessary to add a special space to the apparatus main body as an auxiliary tray accommodating portion. Further, since the auxiliary tray accommodating portion is accommodated in the vicinity of the manual feed tray 29, the accommodating place can be easily understood and the handling becomes easy.

[Recording size switch]

As shown in FIG. 1, the manual feed tray 29 is provided on the inner surface side of the tray 29 and outside the fixed guide 29a.
That is, a size switch 34 for inputting the size of the recording sheet 17 to be manually fed is provided outside the area where the recording sheet 17 is placed. In this embodiment, the switch 34 has an A4 size, a letter size (LTR), and a legal size (LG).
L) can be input.

Thus, when the operator inputs the size of the recording sheet 17 placed on the manual feed tray 29 with the size switch 34 and executes the recording, the recording means B performs the recording according to the recording sheet size. This eliminates the need for a sensor for detecting the size of the recording sheet 17 and an extra space for indicating the recording sheet size on the operation unit and a display device, thereby reducing the number of parts, reducing the size of the device and reducing costs. I can plan.

The size switch 34 is provided on the inner side of the manual feed tray 29 and on the back side of the tray opening / closing handle, and when the manual feed is performed, the open / close handle is found, and the switch is operated when the manual feeding tray 29 is lowered. Since 34 is located at the visual position near the operation position, the operator does not forget to input the size.

[Opening / closing cover]

Further, the recording apparatus is configured so that the recording cartridge 19 can be replaced. For this reason, in FIG. 2, the left side portion of the apparatus main body is configured as an opening / closing cover 35.

This will be described in detail.
A release lever 38 is mounted at a predetermined position of the cover 35 so as to be rotatable about a shaft 37 as shown in FIG. This release lever
Reference numeral 38 denotes a release member for releasing the closed state of the opening / closing cover 35, and one end has a chassis of the apparatus main body.
A hook portion 38a for engaging with 39 is formed, and a release button portion 38b is formed at the other end. When the hook 38a is locked to the chassis 39 by the bias of the torsion coil spring 40 attached to the rotating shaft 37, the open / close cover 35 is held in a closed state, and the release button 38b is released. First
When pulled up in the direction of arrow e in the figure, the locked state of the hook portion 38a is released, and the opening / closing cover 35 can be opened. The release button 38b is configured to be exposed from the through-hole 35a of the cover 35 so that the operator can operate the release button 38b.

The opening / closing cover 35 has a manual feed tray 29 and a drive roller 23.
a, the transfer roller 16, the fixing roller 25a, the pressure roller 25b, and the discharge rollers 26a, 26b are attached. As shown in FIG. 4, when the open / close cover 35 is opened, the respective members attached to the cover 35 are attached. It is configured so as to be separated from the apparatus main body. Therefore, when the cover 35 is opened, the recording cartridge 19 is exposed and the cartridge 19 can be replaced.

[Relationship between openable cover and recording cartridge]

Here, the relationship between the recording cartridge 19 and the opening / closing cover 35 will be described. As shown in FIGS. 2 and 4, locking ridges 19a project from both sides of the recording cartridge 19, and In the cassette accommodating section 41 of the
A locking groove 41a into which a can slide is formed.
Accordingly, by opening the opening / closing cover 35 and holding the handle 19b of the exposed recording cartridge 19 to remove and insert the cartridge 19, the recording cartridge 19
Can be exchanged.

Also the the recording cartridge 19 is light shutter 19c for protecting the photosensitive drum 11 is provided so as to be opened and closed around a shaft 19c _1. This light-blocking shutter 19c is
When 5 is closed, it automatically opens to open the photosensitive drum 11 and transfer roller 1
When the opening / closing cover 35 is opened, the photosensitive drum 11 is shielded from light by automatically closing it.

The interlocking structure between the light-shielding shutter 19c and the opening / closing cover 35 is configured as shown in FIG. Open this cover 35
When the cover is closed, a rod 43 is pivotally supported by a shaft 42 on the opening / closing cover 35, and a rack 45 urged by a tension spring 44 is in contact with the tip of the rod 43. The rack 45 is supported by the apparatus main body by pins 46a and 46b.
Slides in the direction of arrow f, the rack 45 slides in the direction of arrow g, and the pinion 47 meshed with the rack 45 rotates in the direction of arrow h, so that the pin 19c _{2 of the} light-shielding shutter 19c mounted on the pinion arm 47a moves in the direction of arrow. The shutter 19c is configured to be lifted in the i direction and open. Also it by the reverse movement and opening the opening and closing cover 35 pins 19c ₂ is down by the urging of the light shielding shutter 19c rotational axis 19c ₃ the coil spring 19c ₄ torsion provided on the shutter
19c is the one that closes.

[Relationship between the openable cover and the recording sheet discharge tray]

As described above, the opening and closing of the light shielding shutter 19c is interlocked with the opening and closing of the opening and closing cover 35. Therefore, when removing the recording cartridge 19, the opening and closing cover 35 is completely opened and the light shielding shutter 19c is opened.
Is preferably taken out in a completely closed state. Therefore, in this embodiment, the release lever 38 of the opening / closing cover 35 must be removed without removing the recording sheet discharge tray 27 attached to the opening / closing cover 35.
Is configured to be inoperable.

Specifically, as shown in FIG. 1, the recording sheet discharge tray 27 locks the locking projections 27a provided at both ends in the sheet width direction with the locking grooves 48 near the recording sheet discharge port, and attaches it to the apparatus main body. It is configured to be detachable by attaching and releasing the lock, and a button 38b of a release lever 38 is exposed on one side of the discharge tray 27 when the tray 27 is attached. Release prevention plate that covers through hole 35a
27b is provided integrally. Therefore, unless the recording sheet discharge tray 27 is removed, the release lever 38 cannot be operated, and the opening / closing cover 35 cannot be opened.

If the open / close cover 35 is opened with the recording sheet discharge tray 27 attached, the discharge tray 27 may be damaged by contact with the installation floor, or the open / close cover 35 may be completely opened because the tray 27 is in the way. At this time, the photosensitive drum 11 may be exposed because the light-shielding shutter 19c is not completely closed, but in this embodiment, the recording sheet discharge tray 27 is not used.
The inconvenience does not occur because the opening / closing cover 38 cannot be opened unless it is removed. In addition, since the recording cartridge 19 is not forcibly taken out with the opening / closing cover 35 half-open, there is no inconvenience such as breakage of the recording cartridge 19.

[Space for taking out recording cartridge]

Next, the space for taking out the recording cartridge 19 in the apparatus will be described. This recording apparatus is configured so that the opening / closing cover 35 is opened and taken out as described above, and a document discharge tray is provided above the opening / closing cover 35. 10 are provided. Therefore, taking out the recording cartridge 19 uses the space below the document discharge tray 10 as shown in FIG. 4, and requires a unique projection space for taking out the recording cartridge 19 when installing the apparatus. do not do. For this reason, the installation space of the device can be reduced.

[Drawer drawer space]

Next, a drawer space of the cassette 20 storing the recording sheets 17 will be described.

As described above, the cassette 20 is housed in the lower part of the apparatus main body so as to be removable. As shown in FIG. 2, the cassette container is provided with slide projections 20a projecting from both outer surfaces thereof, and a cassette accommodating portion 49 having an opening on the side where the document discharge tray 10 is mounted is formed at the lower portion of the apparatus. ,
A guide groove 49a into which the slide protrusion 20a can be fitted and slidable is formed on the inner wall of the housing portion 49.

Therefore, the cassette 20 can be set by inserting the slide projection 20a into the guide groove 49a and pushing it in from the left side of FIG. 2, and when taking out the cassette, holding the handle 20b formed on the cassette 20, and holding it in FIG. You can remove it by pulling it out to the left.

As described above, the removal of the cassette 20 is performed below the document discharge tray 10 provided as shown in FIG. There is no need to provide a space, and the installation area of the device can be reduced.

[Manual feed and discharge space for recording sheets]

Further, in the apparatus of this embodiment, the projection space for discharging the document is also effectively used as a manual feed and discharge space for the recording sheet 17.

That is, as shown in FIG. 2, the recording sheet discharge tray 27 is disposed above the manual feed tray 29, and the document discharge tray 10 is disposed above the discharge tray 27. Accordingly, the manual feed tray 29 and the recording sheet discharge tray 27 are
, And the space below the document discharge tray 10 is effectively used. For this reason, as in the above case, there is no waste in space, and the installation area of the apparatus can be reduced.

[Arrangement of fixing means and original reading means]

Further, in the apparatus of the present embodiment, as shown in FIG.
The recording unit B is configured to perform recording while conveying the recording sheet 17 from below to above, and the document reading unit A is disposed above the fixing unit. At this time, the fixing roller 25
A heat insulating means is provided so that the optical components such as the light emitting member 8d, the lens 8e, and the photoelectric conversion element 8f of the reading means A are not damaged by the heat of the heater 24 built in a.

In the present embodiment, as the heat insulating means, a fixing roller 25a,
A heat insulating member 50 such as felt is provided between the reading means A and the reading means A located above the heat insulating member 50, thereby insulating the heat of the heater 24 with respect to the reading means A so that the heat does not adversely affect the optical components. doing.

By providing the heat insulating means as described above, the reading means A having an optical component can be arranged above the fixing means, so that the lateral dimension of the apparatus can be reduced and the installation area can be reduced. Further, by this, the recording sheet discharge tray 27 provided near the fixing unit is moved upward.
The document discharge tray 10 provided near the reading optical component can be easily arranged.

[Other embodiments]

In the above-described embodiment, an example is shown in which the auxiliary tray 32 is accommodated on the back surface of the recording sheet discharge tray 27. However, as another embodiment for accommodating the auxiliary tray 32, a configuration as shown in FIG. good.

In the configuration shown in FIG. 7, a concave portion 27c wider than the auxiliary tray 32 is formed on the surface of the recording sheet discharge tray 27, and the auxiliary tray 32 is accommodated in the concave portion 27c. Note that, in the above configuration, it is preferable that the depth of the concave portion 27c be larger than the thickness of the auxiliary tray 32.

As described above, the auxiliary tray 32 is moved to the recording sheet discharge tray.
Even if it is housed on the upper surface side of 27, the same effect as in the above-described embodiment can be obtained.

Further, in the above-described embodiment, the facsimile apparatus is exemplified, but it is obvious that this can be applied to other recording apparatuses such as a copying machine.

<Effect of the Invention> As described above, according to the present invention, since the storage section for storing the auxiliary tray is provided in the discharge tray, when the auxiliary tray is not used, it is detached from the supply tray and stored in the tray storage section. In addition, the removed auxiliary tray does not become an obstacle and can be prevented from being lost.

Further, by providing the tray accommodating portion on the recording sheet discharge tray, the auxiliary tray can be accommodated so as to overlap the discharge tray, and it is not necessary to add a special space to the apparatus main body as an auxiliary tray accommodating space.

Further, since the auxiliary tray is accommodated at the discharge tray position, the handling becomes easy.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a configuration of a feeding and discharging portion of a recording sheet;
2 is an explanatory cross-sectional view of the configuration of the entire apparatus, FIG. 3 is an explanatory perspective view of the entire external appearance, FIG.
FIG. 5 is an explanatory view of an interlocking mechanism of the opening / closing cover and the light shielding shutter,
FIG. 6 is an explanatory view of a state where the cassette is pulled out, and FIG. 7 is an explanatory view of another embodiment of the auxiliary tray accommodating means. A is a document reading unit, B is a recording unit, C is a recording sheet conveying unit, D is an operation panel, E is a telephone, F is a door, G
Is a mounting table, 1 is a document mounting table, 2 is a side guide, 3 is a document, 4a is a preliminary conveying roller, 4b is a pressing member, 5a is a separating roller, 5b is a pressing member, 6a is a conveying roller, 6a is a conveying roller, 6b is a pinch roller, 7 is a spring, 8a is a weight shaft, 8b is a pressing member, 8c is a reading glass, 8d is a light emitting member, 8e is a lens, 8f is a photoelectric conversion element, 9a is a carry-out roller, 9b is a pinch roller, and 10 is a document discharge tray. , 11 is a photosensitive drum, 12 is a charger, 13 is a laser oscillator, 14 is a polygon mirror, 15 is a developing unit, 16 is a transfer roller, 17 is a recording sheet, 18 is a cleaning member, 19 is a recording cartridge, and 19a is a lock. 19b is a handle, 19c is a light-blocking shutter, 19c ₁ is a shaft, 19c ₂ is a pin, 19c ₃ is a shaft, 19c ₄ is a torsion coil spring, 20 is a cassette, 20a is a slide protrusion, 20b is a handle, and 21 is a handle. Feed rollers, 22a and 22b are cassette transport rollers, 23a and 23b are transport rollers, 24 is a heater, and 25a is a fixing roller. Roller, 25b is a pressure roller, 26a and 26b are discharge rollers, 27
Is a recording sheet discharge tray, 27a is a locking protrusion, 27b is a release prevention plate, 27c is a concave portion, 28 is a manual feed slot, 29 is a manual feed tray, 2
9a is a fixed guide, 29b is a slide guide, 29c is a fitting concave portion, 30 is a shaft, 31 is a separating member, 32 is an auxiliary tray, 32a is a fitting convex portion, 33 is a key-shaped locking member, 34 is a size switch, 35
Is an opening / closing cover, 35a is a through hole, 36 is a rotating pin, 37 is a shaft, 3
8 is the release lever, 38a is the hook, 38b is the release button, 3
9 is a chassis, 40 is a torsion coil spring, 41 is a cassette housing portion, 41a is a locking groove, 42 is a shaft, 43 is a rod, 44 is a tension spring, 45 is a rack, 46a and 46b are pins, and 47 is a pinion. 47a, a pinion arm, 48, a locking groove, 49, a cassette housing portion, 49a, a guide groove, and 50, a heat insulating member.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 61-106949 (JP, U) Japanese Utility Model Sho 49-65245 (JP, U) Japanese Utility Model Sho 63-4929 (JP, U) Japanese Utility Model Sho 62- 56554 (JP, U) Japanese Utility Model Showa 50-124339 (JP, U) Japanese Utility Model Showa 61-41139 (JP, U)

Claims (3)

(57) [Claims] A recording unit for recording an image on a recording sheet; a supply tray for placing a recording sheet to be supplied to the recording unit; an auxiliary tray detachable from the sheet supply tray; A recording apparatus, comprising: a discharge tray on which a recording sheet discharged and placed is placed; and a tray storage unit provided on the back side of the discharge tray for storing the auxiliary tray. 2. A recording device for recording an image on a recording sheet, a supply tray on which a recording sheet to be supplied to the recording device is placed, and an auxiliary tray detachable from the sheet supply tray. A recording tray provided on the front side of the discharge tray and having a concave tray storage portion wider than the auxiliary tray and deeper than the thickness of the auxiliary tray. 3. The recording apparatus according to claim 1, wherein said discharge tray and said supply tray are provided on the same side of the apparatus.