JPH04117865A - facsimile machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile machine, and more particularly to a facsimile machine that is smaller in size and lower in cost.

[Conventional technology]

Facsimile machines use two platen rollers, one for transporting the original to be sent when the image is read by the reading sensor, and the other for transporting the recording paper when recording the image. , typically uses two motors to drive these rollers. However, from the point of view of downsizing and cost reduction of the device, it is possible to use a single roller for the transmitting system platen roller and the receiving system platen roller, or to use ]- motors for the transmitting system and receiving system. It is desirable to drive the

Conventionally, as a means of achieving these, a reading sensor and a recording head are arranged with a single platen roller in between, and when reading a document, a cam or the like is driven to move the recording head away from the platen roller and transport only the document. When recording reception, the reading sensor is moved away from the platen roller using the same means to transport only the recording paper, and when copying an original, the original and the recording paper are transported simultaneously by one platen roller to read the original. and recording (JP-A-63-40442, JP-A-631, 1.936)
9).

[Problem to be solved by the invention]

In the above conventional technology, the number of mechanical parts for separating the reading sensor and the recording head from the platen roller increases, and the arrangement interval between the reading sensor and the recording head must be made the same as the diameter of the platen roller, which reduces the degree of freedom in design. The problem was that it was getting smaller.

An object of the present invention is to reduce the number of mechanical parts for separating the reading sensor and recording head from the platen roller, thereby making it possible to downsize the device and reduce cost. It is an object of the present invention to provide a facsimile device having a structure that can increase the degree of freedom in arrangement.

[Means to solve the problem]

In order to achieve the above object, the first aspect of the present invention includes one platen roller, a normal rotation of a motor serving as its driving source,
A group of rotation transmission gears that rotate the rollers to predetermined positions on the reading sensor side and the recording head side in accordance with the reverse rotation, and a group of rotation transmission gears that control the reading sensor and motor to read information, and control the recording head and motor to read information. The configuration includes a control section that performs a recording operation. Further, in the second aspect of the present invention, a memory capable of storing image information of at least one document of a predetermined size is added to the above configuration, and when copying the document, the image information of one document that has been read is temporarily stored. 1. The facsimile apparatus has a control configuration that stores the information in the memory and then records it on the recording paper.

[Effect]

As shown in FIG. 1, which is a diagram explaining the principle of the present invention, the rotational force of the motor 1 is generated by a gear 2 directly connected to the motor shaft, a planetary gear 4 coaxially attached to the platen roller 5, and a gear intermediate therebetween. The power is transmitted to the platen roller 5 by a group of gears including a power transmission gear 3 interposed in the power transmission gear 3 . When the motor 1 is rotated clockwise, the platen roller 5 moves toward the recording head 7 along the roller guide 6 due to rolling action. At this time, by appropriately setting the coefficient of friction between the platen roller 5 and the roller guide 6, a necessary pressing force is generated between the platen roller 5 and the recording head 7. By this operation, image information can be recorded on the recording paper 9 and the recording paper 9 can be conveyed. Furthermore, when the motor 1 is rotated counterclockwise, the platen roller 5 moves toward the reading sensor 8 side by rolling action, and the document paper is moved by the same operation as above.
〇 can be read and transported. Furthermore, when copying an original, the motor 1 is first rotated counterclockwise, one sheet of the original is read, and the image information is transferred to the memory 1.
Store in 2. Next, the motor 1 is rotated clockwise to record the image information stored in the memory 12 onto the recording paper 9.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG. Second
FIG. 1 is a configuration diagram of a facsimile apparatus according to an embodiment of the present invention. This apparatus has a document insertion port 18 located on the top surface of the device, a document discharge port 19 located on the side surface of the device, and a recording paper discharge port 2o located on the side surface of the device.

In the second part of the apparatus, a reading sensor 8 for reading image information on a document sheet 10 is disposed inside the upper covers 1 and 5. Note that the reading surface of the reading sensor 8 is covered with a glass cover 2.
Protected by 2. Inside the device main body cover 14,
Recording head 7 for recording image information on thermal recording paper 9
, a platen roller 5 for conveying the original paper 10 in pressure contact with the reading sensor 8, and a platen roller 5 for conveying the recording paper 9 in pressure contact with the recording head 7, a roller guide 6 for guiding the rolling movement of the platen roller 5, and a platen roller. A planetary gear 4 is arranged coaxially with the planetary gear 5.

The planetary gear 4 is connected to the power transmission gear 3 by a link 2]. With these configurations, the driving force from the motor 1 is transmitted to the platen roller 5 by the gear 2, the power transmission gear 3, and the planetary gear 4.

Furthermore, inside the device main body cover 1-4, there is a recording paper roll 1.
3. A control section 11 for controlling the apparatus and a memory 12 capable of storing image information equivalent to one or more sheets of manuscript paper are arranged. Note that there is a hand cutter above the recording paper outlet 20.
]-6 is attached so that the recording paper 9 can be cut by lifting it up as shown by the dotted line 1-7.

Next, the operation of this embodiment will be described with reference to FIG.

First, when reading a document, after performing a predetermined operation, the document paper]O is inserted into the document insertion slot]8. When reading this document, the motor 1 is rotated in the direction of arrow S. As a result, the platen roller 5 rotates in the direction of arrow S, and moves toward the reading sensor 8 due to the rolling force generated between it and the roller guide 6. Further, the platen roller 5 is pressed against the surface of the glass cover 22 attached to the reading sensor 8 with an appropriate pressing force due to a rolling force generated depending on the friction coefficient between the roller guide 6 and the platen roller 5. Through the above-described operations, the original paper 10 is read and transported, and is ejected from the original ejection port 19.

Next, during the recording operation, the motor is rotated in the direction of arrow R. As a result, the platen roller 5 rotates in the direction of arrow R, and is brought into pressure contact with the recording head 7 by the same action as described above. The recording paper 9 is conveyed to this, and image information is recorded on the recording paper 9. Thereafter, the recording paper 9 is discharged from the recording paper outlet 20, and can be cut by a manual cutter 16 if necessary.

Further, when copying an original, the image information of the original paper is read by the reading sensor 8 according to the above-mentioned original reading operation, and the image information for one original paper is stored in the memory 12. After the original paper is ejected, the apparatus is switched to a recording operation, the image information stored in the memory 12 is reproduced, and the recording head 7 records on the recording paper 9.

As described above, according to this embodiment, the platen roller can be driven, for example, by a motor, using a simple mechanism consisting of a combination of a number of platen rollers, a motor serving as a drive source thereof, and a gear group connecting these. It can be automatically moved to each predetermined position on the reading sensor side by forward rotation drive, and on the recording head side by reverse rotation drive, making it possible to read image information from manuscript paper and record it on recording paper. This is effective in reducing the size and cost of facsimile machines.

〔Effect of the invention〕

As described above, according to the first aspect of the present invention, the rotation of the motor is transmitted to the platen roller via the gear group, and the platen roller is automatically read in accordance with forward or reverse rotation of the motor. Since it is configured to move to predetermined positions on the sensor side and the recording spatula side, it is possible to read the original and record image information on the recording paper using one platen roller and one motor, making it possible for facsimile machines to Effective for downsizing and cost reduction.

Further, according to the second aspect of the present invention, by providing the above configuration with a memory capable of storing image information for one or more original documents, there is an advantage that, in addition to the above effects, the following operations are also possible.

[Brief explanation of drawings]

FIG. 1 is a diagram for explaining the operating principle of the present invention, and the figure is a configuration diagram of an embodiment of the present invention. <Explanation of symbols> Motor 3 Power transmission gear 5 Platen roller 7...Recording head 9...Recording paper 11...Control unit 13 -Recording paper roll 15/Top cover] 8 Original insertion port 20...Recording paper ejection port 22... Glass cover original copy 2... Gear 4 Planetary gear 6 - Roller guy I 8 - Reading sensor 10 - Original paper 12... Memory 14 - Device main body cover 16... Hand cutter]-9... Document ejection port 21... Link 2nd

Claims (1)

[Scope of Claims] 1. One unit that performs both the operation of conveying a transmission document and bringing it into pressure contact with a reading sensor to read information, and the operation of conveying a recording paper and bringing it into pressure contact with a recording head to record information. A platen roller, a motor that serves as a rotational drive source for this roller,
A group of rotation transmission gears rotates the rollers to predetermined positions on the reading sensor side and the recording head side in accordance with the forward and reverse rotation of this motor, and sends a forward rotation command to the motor and at the same time sends a start command to the reading sensor. 1. A facsimile apparatus comprising: a control section that causes a motor to perform an information reading operation, and simultaneously sends a start command to a recording head to perform an information recording operation. 2. The apparatus according to claim 1 is provided with a memory capable of storing image information of at least one document of a predetermined size, and when copying a document, the image information of one document that has been read is temporarily stored in the memory. , a facsimile device characterized in that it performs recording on recording paper.