JPH07172595A - Recording device - Google Patents

Abstract

PURPOSE:To easily perform assembling of a paper feed unit to a device main body both in a market or a factory. CONSTITUTION:Screw holes 111 are on the side faces and screw holes on the bottom face of the device main body 100 of a recording device respectively provided, and fixing from the side under the condition in which the device main body 100 is placed on a paper feed unit 200, and fixing from the bottom face side under the condition of facing the device main body 100 sideway, can be selectively performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording device such as a facsimile copying machine, a printer or the like, which stores cut sheets in a cassette-like container and is used as recording paper, and which can have a plurality of multi-stage paper feeding portions. Is.

[0002]

2. Description of the Related Art Conventionally, for example, in a facsimile apparatus as a recording apparatus using a cut sheet as a recording sheet, a cut sheet is accommodated in a sheet cassette corresponding to the sheet size and used. Also, there are multiple requests for the sheet size to be used such as A4 and B4,
There is a demand for a paper feed cassette capable of accommodating a large capacity even with one sheet size.

Therefore, instead of using a single paper feed cassette,
Devices with more than two stages of paper cassettes have appeared. Further, a user who requests such a device is not limited to the increase of the paper feeding capacity, but is called a so-called high-end machine, for example, the reading speed of the document reading unit is increased, the recording memory capacity is increased, and additional functions are added. The current situation is that equipment is required.

FIG. 6 shows an example of this type of recording apparatus. In the apparatus main body 100, 50 is an electrical component section including an electric board 51 and a connector, and 30a is a gear 43b.
And a first drive system including a clutch 44 and the like, 21a
Is for feeding sheets in the first paper feed cassette 20a.
The paper feeding roller is shown.

The paper feeding unit 200 is the device body 10 described above.
The second drive system is detachably attached to 0, 30b is a second drive system including a gear 43a and a clutch 44, and 21b is a second paper feed roller for feeding the sheets in the second paper feed cassette 20b. Shows.

[0006]

However, when manufacturing a so-called general-purpose machine having a single-stage paper feed cassette and a high-grade machine having two or more stages, it is wasteful to design and manufacture each independently. Therefore, as shown in FIG. 6, a paper cassette and its paper feeding mechanism portion (paper feeding mechanism) are usually provided at the bottom of a single-stage apparatus main body (recording apparatus single body) 100 as a class machine. The paper unit) 200 was added.

Further, a user who purchases a popularized device orders the paper feeding unit as a retrofit and attaches it at the user's place of use, because the paper feeding capacity is insufficient, so-called market option type and factory. At the shipping stage, there are two types: parallel-type and high-grade machines.

When assembling the paper feeding unit as a market option, if the weight of the apparatus main body is heavy, it is difficult to lift the apparatus main body and place it on the paper feeding unit. Measures such as attaching a paper feeding unit are taken, and a method of fastening screws from the bottom is used (see FIG. 7). After assembling, the sideways lying apparatus body is returned to the original state to become a recording apparatus with a paper feeding unit.

However, when a high-grade machine is manufactured in advance in a production plant, it is impossible to overturn the apparatus main body on the assembly line or turn it over, and it is usually placed on an assembly pallet in a state of normal use. The parts are assembled to the main body from above or from the side. Here, if it is configured to be assembled from the bottom in consideration of market options, there is a drawback that the main body has to be turned over when assembled on the factory line.

The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to easily assemble a sheet feeding unit to an apparatus main body in a market and a factory.

[0011]

SUMMARY OF THE INVENTION According to the present invention, a sheet feeding unit for supplying a sheet to the recording section is removably stacked on the lower side of an apparatus main body having a recording section for recording an image on the sheet. In a recording apparatus provided as a device, a first fixing mechanism that fixes the apparatus main body and the paper feeding unit from the side direction, and a second fixing mechanism that fixes the apparatus main body and the paper feeding unit from the lower surface side of the paper feeding unit. And a fixing mechanism for fixing the apparatus main body and the paper feeding unit by selectively using the first fixing mechanism and the second fixing mechanism.

Further, according to the present invention, a plurality of sheet feeding units for supplying sheets to the recording unit are removably stacked under the main body of the apparatus having a recording unit for recording an image on the sheet. The recording apparatus has a first fixing mechanism that fixes each of the plurality of paper feeding units from a side surface direction, and a second fixing mechanism that fixes the plurality of paper feeding units arranged below from the lower surface of the paper feeding unit. It is characterized in that the plurality of sheet feeding units are fixed by selectively using the first fixing mechanism and the second fixing mechanism.

[0013]

According to the above construction, the sheet feeding unit can be fixed with the apparatus main body placed on the sheet feeding unit, and further, the sheet feeding unit can be fixed even with the apparatus main body lying down.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of the entire apparatus showing an assembling mode of the recording apparatus, FIG. 2 is a sectional side view of the entire recording apparatus, FIG. 3 is a perspective view of the entire apparatus, and FIG. 4 is a block diagram showing a schematic configuration of the apparatus. Is.

First, a schematic structure of the recording apparatus will be described with reference to FIG.

In FIG. 4, A is a reading unit that photoelectrically reads a document and outputs it as a digital image signal to the control unit 101, and includes a document feeding motor, a CCD image sensor, and the like. Next, the configuration of the control unit 101 will be described. Reference numeral 102 denotes a buffer memory for storing image information corresponding to one page, which stores one page of image data from the reading unit A when transmitting or copying an original, and a decoded received image when receiving image data. Data is stored. Then, the stored data is output to the recording unit B to form an image. Reference numeral 103 denotes an encoding / decoding unit that encodes image information to be transmitted by MH encoding or the like, and decodes the received encoded image data to convert it into image data.

Each unit of the control unit 101 is controlled by a CPU 104 such as a microprocessor. In addition to the CPU 104, the control unit 101 includes a CPU
R storing 104 control programs and various data
The OM 105 and the CPU 104 are provided with a RAM 106 as a work area for temporarily storing various data. B
Is a recording unit that scans a laser beam on a photoconductor to record an image on a recording sheet. This configuration will be described later with reference to FIG. Reference numeral D denotes an operation unit including various function instruction keys for starting transmission, an input key for a telephone number, and the like, and 107 is a display unit that normally displays various functions provided in the operation unit D and the state of the device. Reference numeral 108 denotes a power supply unit for supplying electric power to the entire device. Further, 109 is a modem (modulator / demodulator), 1
Reference numeral 10 is a network control unit (NCU), and E is a telephone.

The structure of each part of the recording apparatus will be described below in order.

[Original Document Reading Unit] In the original document reading unit A, as shown in FIG. 2, an original document placing table 1 is formed on the upper surface of the apparatus, and the original document surface is placed on the placing table 1 in a stacked manner. Of the originals 3 guided by the side guides 2, the lowermost original 3 is pre-conveyed by the pre-conveying roller 4a and the pressure contact member 4b in pressure contact with the pre-conveying roller 4a, and is separated by the separating roller 5a and the pressure contact member 5b in pressure contact with it. The sheets are separated one by one and fed to the left side of the apparatus main body in FIG.

Then, the separated and fed original 3 is conveyed by a conveying roller 6a and a pinch roller 6b which is in pressure contact with the conveying roller 6a, and an image written on the original is converted into an electric signal by a contact type contact sensor 7. It is configured. The document 3 whose image has been read by the contact sensor 7 is discharged to a document discharge tray 9 mounted on the left side surface of the apparatus main body by a discharge roller 8a and a pinch roller 8b which is pressed against the discharge roller 8a.

[Recording Unit] The recording unit B is configured as a laser beam printer in this embodiment. This structure will be described. A laser oscillator 13 that charges the drum surface with a charger 12 arranged around a photosensitive drum 11 that rotates in the direction of arrow G and oscillates a laser beam according to an image signal.
Is reflected by a bolgon mirror 14 and exposed to the rotating drum 11 to form an electrostatic latent image, and the latent image is visualized by toner in a developing unit 15. Further, the toner image is conveyed between the photosensitive drum 11 and the transfer roller 16 that is in pressure contact with the photosensitive drum 11, and the recording sheet 17 is conveyed.
Will be transcribed and recorded. In addition, the photosensitive drum 1 after the toner transfer
1 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 the apparatus main body in a detachable manner.

[Recording Sheet Conveying Means] Next, the recording sheet conveying means C will be described.

A first cassette (first sheet supporting means) 20a for accommodating the recording sheets 17 is detachably attached to the lower portion of the apparatus main body (recording apparatus single body) 100. A recording sheet 17 made of a cut sheet is stacked and accommodated in 20a. The recording sheet 17 has a half-moon-shaped first feeding roller 21a.
One sheet of the uppermost layer is fed by (first sheet feeding means),
A conveying roller pair including a driving roller 22a and a pinch roller 22b conveys the photosensitive drum 11 in synchronism with the rotation of the photosensitive drum 11, and an image is recorded when passing between the photosensitive drum 11 and the transfer roller 16, and the recording sheet 17 after recording is heated by the heater 23. A fixing roller 24a having a built-in roller and a pressure roller 2 which is pressed against the fixing roller
When passing between 4b, heat and pressure are applied to fix the toner image, and the conveying roller pair 25a and 25b, the discharging roller pair 2
6a and 26b are configured to be discharged to the recording sheet discharge tray 27.

An optional sheet feeding unit 200 is detachably connected to the apparatus main body 100.
A second sheet feeding cassette (second sheet supporting means) 20b accommodating the recording sheets 17 which can be fed to the recording section B and the recording sheets 17 are fed into the sheet feeding unit 200. A second feeding roller 21b (second sheet feeding means) is arranged.

[Drive System] Next, the drive system will be described.

As shown in FIG. 6, the first sheet feeding cassette 20a in the upper stage and the second sheet feeding cassette 20b in the lower stage are inserted from the sheet feeding cassette insertion direction F, and the drive train 30 is on the back side thereof. Is provided.

Above each of the paper feed cassettes 20a and 20b, there are half-moon-shaped paper feed rollers 21a and 21b for picking up the recording paper 17 of the uppermost layer from the paper feed cassette, and a gear 43a via a clutch means 44 on its shaft. , 43b. The gears 43a and 43b are driven by a motor deceleration system (not shown). Clutch means 4
Reference numeral 4 is composed of a clutch spring, a one-rotation control ring having a protrusion, a solenoid, and the like.

As shown in FIGS. 5 and 6, an apparatus main body 100 of a popular machine having a single-stage first sheet feeding cassette 20a,
The paper feeding cassette 20b and the second paper feeding means 21 therebelow
The paper feeding unit 200 having b is divided at a line H. The drive system 30 is also divided into another drive system 30a and 30b with the line H as a boundary, and the drive is transmitted when the apparatus main body 100 of the popular machine is placed on the paper feeding unit 200. There is.

[Electrical Substrate] Next, an electrical component section including the electrical substrate will be described.

The electrical equipment section 50 on the back side of the main body 100 includes the electric board 51 and a power source (not shown).

Further, the solenoid of the clutch means 44, a sensor (not shown) for detecting the presence or absence of the recording sheet 17 in the second paper feeding cassette 20b, and the second paper feeding cassette 20b are inserted into the paper feeding unit 200. A sensor (not shown) for detecting whether or not there is a sensor (not shown) for detecting the paper size of the recording sheet 17 set in the second paper feeding cassette 20b is directly connected to the substrate 51, or is supplied. Another substrate (not shown) may be provided in the paper unit 200 and connected to the substrate 51 and the like.

Next, the paper feeding unit 200 is attached to the apparatus main body 100.
The configuration and the assembling method for assembling will be described.

First, a structure for fastening the entire apparatus 100 on the side surface side will be described. As shown in FIG. 1, four protrusions 201 are provided on the upper portion of the sheet feeding unit 200 so as to be screwed from the side. The sheet feeding unit 200 is provided with a screw hole 202 for fastening from the bottom surface side described later, but the screw hole 202 is not used when fastening from the side.

Further, 204 is a discharge port for supplying the recording sheet 17 from the paper feeding unit 200 to the apparatus main body 100, and 203 is a fastening screw. In FIG. 1, the clutch means 44 is omitted.

The device body 100 has an outer cover 115, 1
When 16 (shown in FIG. 7) is removed, a screw portion 111 is provided at a position corresponding to the protrusion 201.

Paper feeding unit 20 in the production line of the production plant
When manufacturing a device with 0, the paper feeding unit 200
The main body 100 can be placed on top of this, fixed from the side with screws 203, and the exterior covers 115, 116 can be attached for assembly. That is, the apparatus main body 100 can be assembled without laying it over or turning it over.

Further, 114 shown in FIG. 7 is an exterior cover 11.
5, 116, which are grooves provided in the protrusions 5, 116, and the protrusion 201 is inserted therein.

Next, a structure for fastening the apparatus body 100 on the bottom side will be described. As shown in FIG. 7, a fastening screw 112 is provided on the bottom surface of the main body 100. Also, 1
Reference numeral 13 denotes a paper feed port corresponding to the recording sheet discharge port 204 of the paper feed unit 200. The clutch means 44 is omitted in FIG.

The sheet feeding unit 200 is provided with a tool hole 205 into which a tool such as a driver is inserted, on the bottom surface side corresponding to the screw hole 202.

A user using the apparatus main body 100
When the paper feeding unit 200 is purchased as an optional kit to increase the paper feeding capacity and the paper feeding unit 200 is added at the place of use, it is difficult to mount the apparatus main body 100 on the paper feeding unit 200 as described above. Is.

Therefore, as shown in FIG. 7, the main body 100 is laid down sideways, the paper feeding unit 200 is laid down sideways, and the screws 203 are fastened from the bottom side of the apparatus. After that, the paper feeding unit 20
The device main body 100 with 0 is returned to the original state and the assembly is completed. Therefore, since it is assembled from the bottom, the exterior cover 11
There is no need to remove or assemble 5, 116.

In the present embodiment, each fastening portion is provided at four places, but it goes without saying that it is not limited to this.

Further, although it has been described that the fastening is performed from the lateral direction when the fastening is performed from the side, the fastening may be performed from the front-rear direction. Further, instead of fastening from below, fastening may be performed from above.

In this embodiment, the case where one paper feeding unit 100 is attached to the apparatus main body 100 has been described.
The present invention may be applied to one in which one or a plurality of sheet feeding units are stacked and attached below the sheet feeding unit 100 to form a multi-stage type. In this case, the device body 100
The combined structure of the sheet feeding unit 200 and the sheet feeding unit 200 may be applied between the stacking sheet feeding units.

When stacking the sheet feeding units in this way, each sheet feeding unit is vertically penetrated to convey the sheet sent from the lower sheet feeding unit toward the apparatus main body 100. It is necessary to provide the above-mentioned transport path.

The embodiment of the present invention has been described in detail above.
The present invention is not limited to this embodiment, and for example, a screw is used as the fixing mechanism, but any device that can be detachably fixed may be used. Further, in the present embodiment, the screw holes are provided on the apparatus main body 100 side, but conversely, the screw holes may be provided on the sheet feeding unit 200 side.

Further, in the present embodiment, the example in which the present invention is applied to the facsimile device is shown, but the present invention may be applied to other recording devices such as a copying machine for electrophotography and a printer.

[0050]

As described above, when a paper feeding unit is added to the lower portion of the recording apparatus main body, the first fixing mechanism which is fastened on the side surface side of the apparatus main body and the first fixing mechanism which is fastened from the bottom surface side of the apparatus main body. By configuring so that the two types of the second fixing mechanism can be arbitrarily selected, even in a production plant,
Even when it is assembled as a market option, it has an effect that it can be easily assembled without deteriorating the assembling property.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first fixing mechanism of a recording apparatus embodying the present invention.

FIG. 2 is a vertical sectional side view of the entire recording apparatus.

FIG. 3 is a perspective view of the recording apparatus.

FIG. 4 is a block diagram showing a schematic configuration of the same device.

FIG. 5 is a vertical cross-sectional side view showing the relationship between the recording apparatus main body and the paper feeding unit.

FIG. 6 is a vertical cross-sectional side view showing the relationship between the recording apparatus main body and the paper feeding unit.

FIG. 7 is a perspective view showing a second fixing mechanism of the recording apparatus embodying the present invention.

[Explanation of symbols]

 B recording unit C recording sheet conveying means 11 photoconductor drum 17 recording sheet 20a first cassette (first sheet supporting means) 20b second paper feeding cassette (second sheet supporting means) 21a first feeding roller (First Sheet Feeding Means) 21b Second Feeding Roller (Second Sheet Feeding Means) 30a First Driving System 30b Second Driving System 100 Device Main Body 111, 112 〆 Screw Part 114 Groove 200 Feeding Paper unit 201 Protrusion 202 Screw hole 203 Screw 205 Tool hole

Claims (7)

[Claims] 1. A recording apparatus in which a sheet feeding unit for supplying sheets to the recording section is detachably stacked under a main body of the apparatus having a recording section for recording an image on the sheet, A first fixing mechanism that fixes the apparatus main body and the paper feeding unit from a side surface direction; and a second fixing mechanism that fixes the apparatus main body and the paper feeding unit from the lower surface side of the paper feeding unit, A recording apparatus, wherein the apparatus main body and the paper feeding unit are fixed by selectively using the first fixing mechanism and the second fixing mechanism. 2. The apparatus main body has first sheet supporting means for supporting a sheet to be sent to the recording section, and first sheet feeding means for feeding the sheet from the first sheet supporting means. The recording apparatus according to claim 1, wherein: 3. The sheet feeding unit has a second sheet supporting means for supporting a sheet to be supplied to the apparatus main body, and a second sheet feeding means for feeding a sheet from the second sheet supporting means. The recording apparatus according to claim 2, wherein the recording apparatus comprises: 4. The recording apparatus according to claim 1, wherein the fixing by the fixing mechanism is screwing. 5. A recording apparatus in which a plurality of paper feed units for supplying sheets to the recording section are detachably stacked under a main body of the apparatus having a recording section for recording an image on a sheet, A first fixing mechanism that fixes each of the plurality of sheet feeding units from a side surface direction; and a second fixing mechanism that fixes the plurality of sheet feeding units from a lower surface side of the sheet feeding unit arranged on the lower side,
2. The recording apparatus, wherein the plurality of sheet feeding units are fixed by selectively using the fixing mechanism of 1) and the second fixing mechanism. 6. Each sheet feeding unit has a vertically provided passage for feeding a sheet from a sheet feeding unit located on the lower side to the apparatus main body side.
The recording device according to 1. 7. The recording apparatus according to claim 5, wherein the fixing by the fixing mechanism is screwing.