The roller assembly unit reading the image of a fax machine

 

(57) Abstract:

The invention is intended for a block read Fax machine. The roller Assembly unit read image comprises a cylindrical roller for conveying the original document surface which is a surface reading. The specified roller is made in the form of a tube formed by extrusion, and the site contains shafts, fixed inserted into the respective ends of the tube, and on one of the shafts has formed at the same time with him toothed wheel for the drive roller. These signs will provide accurate focusing on the original document and the filing of the original document. 4 C.p. f-crystals, 5 Il.

The invention relates to a roller Assembly used for the unit to read the image of the facsimile apparatus, and more specifically, to a node of the read roller, made of a tube made by extrusion.

Known roller Assembly unit reading the image of a Fax machine, containing a cylindrical roller for conveying the original document surface which is a surface reading. /US patent 5105279, CL H 04 N 1/028, 14.04.92/.

A disadvantage of the known device is insufficient is 2">

The aim of the invention is the provision of accurate focus on the original document and ensure accurate submission of original document. This goal is achieved by the fact that the roller Assembly unit to read the image of the facsimile apparatus comprises a cylindrical roller for conveying the original document surface which is a surface reading, with the specified roller is made in the form of a tube formed by extrusion, and the node contains the fixed shafts are inserted into the respective ends of the tube and on one of the shafts has formed at the same time with him toothed wheel for the drive roller. The shafts have a fixation rods and placed them siteplease Cams. Inside cushion formed siteplease grooves for inserting saralaya Cams. Rods fixing shafts elastic form with the possibility of inserting them at the end of the read roller. The front end of this rod fixation of one shaft and the other shaft is bevelled to allow unimpeded insertion into the cavity of the read roller, with one end of the shaft and the other end of the shaft are molded.

The Fax machine scans the original document passes the ntere receiver. Unit reading image reliable Fax transmitter typically use a shaper image direct action /next - "PIPD"/ or reducing optical system for reading information on the original documents and convert them into electrical signals. Because the original document is moved along the route of the optical pickup image, the focus must be accurately adjusted to read the original document image with the greatest possible delicacy. To ensure these functions, that is, precision reading, precise movement of the optical unit to read the image, usually use a rubber roller, that is, the read roller, making exercise a precise focus on the original document and accurate filing of the original document.

The invention is illustrated specific option for its execution, with reference to the accompanying drawings, in which:

Fig. 1 depicts a schematic block circuit diagram of the read image optical system for reading the image in which the normal use of the read roller to a Fax machine;

Fig. 1 depicts a block read an image with the use of fo is receiving reducing optical system;

Fig. 2 is a longitudinal section of an ordinary node of the read roller, used to block the read image;

Fig. 3 is a longitudinal section of the roller Assembly of the read image in accordance with this invention;

Fig. 4 is a longitudinal section of the read roller as one of the essential parts of the roller Assembly in Fig. 3, and

Fig. 5 is a longitudinal section of a roll as another essential part of the roller Assembly shown in Fig. 3.

Referring to Fig. 1 and 2, the conventional reading roller 20 is positioned so that he was in contact with FIDP 21 or reducing optical system 22, and the reading roller 20 consists of a steel shaft 23 and a white rubber roller 24, is formed around the surface of the steel shaft 23.

As for the manufacturing process of the read roller, after machining steel shaft 23 white rubber roller 24 is formed around a cylindrical surface of a steel shaft 23 and then subjected to final machining processing and debugging. Further, to drive the read roller 20 Assembly to one side of the read roller 20 is inserted toothed wheel 25, and a spring washer mounted on the shaft on the outer side of the toothed wheel 25, so that UD is rata thus, so he was in contact with FIPD 21 and reducing optical system 22, resulting in the read roller 20 provides a precise focus on the original documents and their exact flow.

Referring to Fig. 3, 4, 5, the roller Assembly unit reading the image of a Fax machine consists of extruded reading roller 10 and formed shafts 11 /11a, 11b,/, each of which is inserted into the appropriate ends on both sides of the read roller 10.

Referring to Fig. 4, the white roller 10 is formed from an extruded tube which is provided siteplease grooves 12 on the inner sides of both ends of the roller to prevent idling of the shaft 11.

Referring to Fig. 5, the shaft 11 is separately formed and each of them is inserted into the respective ends of the read roller 10. Both shafts 11a, 11b provide elastic rods 13 of the fixing shaft, which is firmly inserted into the corresponding ends of the read roller 10, and also provide siteplease Cams 14 on the rods 13 of the fixing shaft, phoneimage in siteplease grooves 12 in accordance with the image in Fig. 3,5. The gear 15 is formed at the same time with one of the two shafts 11 to drive the roller. Further, the front ends of the="ptx2">

Further detail due to the action of the roller Assembly unit reading image reliable Fax machine in accordance with this invention.

When assembling each terminal 13 of the fixing shaft on the shafts 11a, 11b firmly inserted into both the corresponding end of the read roller 10 so that siteplease Cams 14 are, respectively, saralaya the slots 12, through which the rods 13 of the fixing shaft be elastically fitted in both ends of the read roller 10 for a tight fit within them.

The finished roller Assembly 20 unit read image is set in the facsimile apparatus so that the gear wheel 15 of the roller 20 accurately engages the teeth with a leading gear wheel of a drive system Fax machine /in the drawings are not depicted/. The specified node 20 of the roller performs the functions of a precise feeding of the original document and the focusing unit to read the image exactly on the original document.

In accordance with this invention, the node reads the roller /rubber roller directly extruded for forming a cylindrical tube, which does not need to be subjected to additional machining process, and provide Saudi roller, separately formed by molding so that each of them can be inserted into the respective ends on both sides of the read roller, and one of the shafts is formed at the same time with the toothed wheel and the spring washer is not required, and siteplease Cam formed on both shafts to fit in siteplease groove formed inside both ends of the read roller. Therefore, this invention has the advantage of simplifying the manufacturing processes and Assembly, and the result is reduced production selectomatic

1. The roller Assembly unit reading the image of a Fax machine, containing a cylindrical roller for conveying the original document surface which is a surface reading, characterized in that the roller is made in the form of a tube formed by extrusion, and the site contains shafts, fixed inserted into the respective ends of the tube, and on one of the shafts has formed at the same time with him toothed wheel for the drive roller.

2. Site under item 1, characterized in that the shafts have a fixation rods and placed them siteplease Cams, while the inside of the roller formed semalaysia grooves for insertion shape with the possibility of inserting them at the end of the read roller.

4. Site under item 1, characterized in that the front end of this rod fixation of one shaft and the other shaft is bevelled to allow unimpeded insertion into the cavity of the read roller.

5. Site under item 1, characterized in that one end of the shaft and the other end of the shaft are formovanie.

 

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FIELD: printing industry.

SUBSTANCE: developing cartridge used with device for image formation comprises body of developing cartridge and handle arranged on one side of upper surface of cartridge body and comprising gripping part, arranged on it so that to form sharp angle with upper surface of cartridge body. Also handle comprises a pair of support parts, passing from surface of body and connected to both sides of gripping part in order to attach gripping part to body of developing cartridge.

EFFECT: device for installation and disconnection of cartridge.

7 cl, 9 dwg

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