JP2876254B2 - Facsimile machine using plain paper as recording paper - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a facsimile apparatus using plain paper as recording paper, and more particularly to a layout for reducing the installation space of the apparatus.

(Prior Art) Conventionally, as this type of facsimile apparatus, there has been an A type or a B type shown in FIG. That is, when the operator operates the apparatus, both types A and B cause the transmission original or the recording paper to flow in the horizontal direction when viewed from a surface facing the apparatus (here, referred to as an operation surface). Are fed out without being inverted as they are, and in the case of the B type, they are inverted halfway.

Both types A and B are arranged at the bottom of the recording paper cassette apparatus, and the recording paper fed from the cassette is conveyed upward along one side of the apparatus. , A photoconductor, a transfer charger, and a fixing unit are sequentially arranged upward along one side surface. With this configuration, the width of the apparatus can be reduced, and the recording paper conveyance path is close to one side, so that the side cover can be opened and closed to facilitate processing when a jam occurs. It has the advantage that it can be used, and it has been widely adopted recently.

(Problems to be Solved by the Invention) However, in the case of the A type, the support for the A3 document protrudes (150 to 260 mm) on the right side of the apparatus. This protrusion is necessary until the rear end of the original is 50 mm inside, and if it is less than that, the trailing end of the original will hang down, thus impairing the automatic original feeding performance. Also, on the left side of the apparatus, the recording paper discharge tray pops out, and eventually,
There was a disadvantage that the installation area became large.

Further, in the case of the B type, since the original or the recording paper is inverted and discharged to the upper surface of the apparatus, the operation panel is brought out to the front side of the apparatus, and therefore, the depth becomes large. Also, the document support stand of 150 to 260 mm still protrudes on the right side of the apparatus.

The present invention is intended to solve the above-mentioned problems of the related art, and reduces the size and installation area of the apparatus as much as possible, and furthermore, uses plain paper as recording paper so as to facilitate processing when a jam occurs. It is an object of the present invention to provide a facsimile apparatus that performs

(Means for Solving the Problems) In order to achieve this object, the present invention arranges a plain paper recording paper cassette at the lower part of the apparatus, and feeds the recording paper fed out substantially horizontally from the recording paper cassette to the apparatus. A facsimile apparatus that discharges a pair of registration rollers, a transfer charger, and a fixing unit sequentially arranged along one side surface to a discharge tray provided at an upper part of one side surface. The layout is such that the document set on the upper surface of the device on the operation surface side is read and then discharged to the upper surface of the device on the opposite side, and the recording paper cassette can be pulled out to the operation surface side.

Further, a pair of registration rollers and one roller of a pair of relay rollers disposed between the pair of registration rollers and the recording paper cassette are provided on the recording paper cassette pullout member, and the pair of rollers are separated from each other by pulling out the cassette. Configuration.

(Operation) According to the above configuration, the transmission document is caused to flow from the operation surface side to the back side, and the document discharge tray provided on the back side can be set up steeply. Becomes smaller.

In addition, jams that occur before the registration roller pair can be easily removed because the roller pairs are separated by pulling out the cassette, and jams that occur after that are mainly caused by the fixing unit and the transfer charger. The cover can be easily removed by opening the cover on the operation surface side.

(Example) Hereinafter, an Example is described in detail with reference to drawings. First
FIG. 1 shows an embodiment of the present invention, wherein 1 is a photoreceptor belt, which circulates in the direction of the arrow. A precharger 2 charges the photoreceptor belt 1 uniformly in advance. 3
Is a laser beam for selectively irradiating the photosensitive belt in accordance with an image and exposing to form a latent image, 4 is a developing roller for applying toner to the latent image to develop the latent image, and 5 is a photosensitive belt 1
This is a transfer charger for transferring the toner image formed thereon to a recording paper 8 made of plain paper separated and fed from a recording paper cassette 6 by a feed roller 7. Reference numeral 9 denotes a fixing unit including a fixing roller and a pressure roller, which heat-fixes the recording paper onto which the toner image has been transferred. Reference numeral 10 denotes a discharge roller for discharging the fixed recording paper to a discharge tray 11. Reference numeral 12 denotes a blade for scraping toner remaining on the photosensitive belt 1, and the dropped toner is stored in a cleaning tank 13. Reference numeral 14 denotes a charge removing lamp for removing charges remaining on the photosensitive belt 1.

Reference numeral 15 denotes a toner cartridge that stores toner to be supplied to the developing unit. The toner is collected at a toner discharge port 17 by a toner conveying screw 16, falls into a toner receiver 19 of a developing device through a toner guide 18, and is further transferred to a toner conveying screw. The toner is evenly distributed by 20, and is dropped and supplied to the developing device hopper 21. Note that the toner guide 18 is arranged near one of the ends of the toner cartridge 15 so as not to obstruct the optical path of the laser beam.

Reference numeral 22 denotes a rotation fulcrum of a cover 28 on one side of the apparatus on which the transfer charger 5, the fixing unit 9, the discharge roller 10, and the paper discharge tray 11 are arranged. As shown in FIG. The cover 28 can be opened and closed by rotating the cover 28 around the center. Numeral 24 is a protective cover for protecting the photoreceptor belt 1 from touching the hand, etc., 25 is a guide plate before transfer, and 26 is a handle for taking out the photoreceptor unit. The protective cover 24, the guide plate 25 before transfer and the handle 26 are provided. Are integrally formed. When the life of the photoreceptor belt 1 has expired, the user can pull out the photoreceptor unit (including the photoreceptor belt and a transport roller for stretching the same) by holding the handle 26 in the direction of the arrow in FIG. Also, the toner cartridge 15 and the cleaning tank
13 is also integrated, and when toner is replenished, it is pulled out in the direction of the arrow and replaced with a new one.

Reference numeral 23 denotes a registration roller pair, which plays a role of sending out the recording paper fed from the recording paper cassette 6 via the relay roller pair 27 at a timing with the photosensitive belt 1 on which the toner image is formed. Here, the recording paper cassette 6 is
As shown in the figure, the apparatus is configured to be able to be pulled out to the recording paper discharge surface side of the apparatus, and one roller 23a, 27a of each of a registration roller pair 23 and a relay roller pair 27 is disposed on a cassette pullout member 29 thereof. . Therefore, each roller pair is separated from each other by pulling out the cassette.

On the other hand, the transmission original reading unit is arranged at the upper part of the apparatus. That is, reference numeral 31 denotes a document set table, and reference numeral 32 denotes a separating / feeding unit, which separates and feeds a plurality of documents set one on another. Reference numeral 33 denotes a conveying roller, reference numeral 34 denotes a light source for certifying a document to be conveyed, reflected light from the document is guided by a mirror 35, and CC
An image is formed on D36 and photoelectrically converted. The read original is discharged to the discharge toner 37.

In the present embodiment configured as described above, when the cover 28 on one side of the apparatus provided with the recording paper discharge tray 11 is used as the user operation surface, the document is set on the document set table 31 on the upper surface of the apparatus on the operation surface side. After the scanned document is read, the output tray 37
Paper output tray 37 to 45
゜ You can stand on the steep grade. That is, since the discharged document does not have to fall even if the leading end hangs down, the discharge tray 37 may be projected at most by about 100 mm from the rear side surface of the apparatus. Further, since there is no projection on both the left and right sides as viewed from the operation surface, the installation area can be minimized.

In addition, since the recording paper cassette 6 has a layout that can be pulled out to the operation surface side, it is possible to replenish the recording paper from the operation surface side, and thus it is not necessary to open the recording paper cassette 6 widely on both the left and right sides.

Further, one roller 23a, 27a of each of the registration roller pair 23 and the relay roller pair 27 is disposed on the recording paper cassette pull-out member 29, and the respective rollers are separated from each other by pulling out the cassette. If a jam occurs before stage 23, it can be easily removed by pulling out the cassette. Further, when a jam occurs after the registration roller pair 23, the jam can be easily removed by opening the cover 28,
In this case, since the opening and closing portions are mainly the fixing device 9 and the transfer charger 5, the size of this portion is reduced, and the operability is improved.

(Effects of the Invention) As described above, according to the present invention, as shown in FIG. 4C, the dimensions of the device of the present invention without longitudinal flow and no reversal are shown in comparison with the conventional example, so that the installation space of the device is Can be minimized, and the size of the portion that is opened and closed by the jam processing can be reduced to improve operability.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of one embodiment of the present invention, FIG. 2 is a diagram showing a state in which a cover unit in which a fixing unit and a transfer charger of the embodiment are arranged is opened, and FIG. 3 is a recording paper cassette. FIG. 4 is a diagram showing a state in which the unit is pulled out to the operation surface side, and FIG. 4 is a diagram comparing dimensions of a conventional example and an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Photoreceptor belt, 5 ... Transfer charger, 6 ... Recording paper cassette, 9 ... Fixing unit, 11 ... Recording paper discharge tray, 23 ... Register roller pair, 27 ... Relay roller pair, 29 ... Drawing member of recording paper cassette, 31 ... Document set table, 37 ... Document ejection tray.

Claims (2)

(57) [Claims] 1. A recording paper cassette of plain paper is arranged at a lower portion of an apparatus, and a pair of registration rollers, which are successively arranged upward along one side of the apparatus, transfer a recording paper fed out substantially horizontally from the recording paper cassette. In a facsimile apparatus for discharging a sheet through a charger and a fixing unit to a sheet discharge tray provided on the upper side of the one side, one side of the apparatus provided with the sheet discharge tray is set as a user operation surface, and set on the upper surface of the apparatus on the operation surface side. A facsimile apparatus using plain paper as recording paper, wherein the layout is such that a read original is discharged to the upper surface of the apparatus on the opposite side after reading, and the recording paper cassette is configured to be drawn out to the operation surface side. A pair of registration rollers and a pair of relay rollers disposed between the pair of registration rollers and the recording paper cassette are provided on a recording paper cassette pull-out member; 3. The facsimile apparatus according to claim 1, wherein the jam paper is removed separately from each other.