JPH04137657U - Fax machine drive mechanism - Google Patents

Abstract

(57) [Summary] [Purpose] We propose a facsimile machine drive mechanism that can perform the necessary sending, receiving, and copying operations with a single roller drive. [Structure] A single roller serves as a feed roller and a platen roller, which were conventionally installed separately in the device. One side of the feed/platen roller 1 is provided with a paper feed path for the document P0 that is fed in by the roller 1, while the other side of the feed/platen roller 1 is provided with the recording paper that is ejected by the roller 1. A discharge path for the recording paper P is provided, and by rotationally driving the feed/platen roller 1, feeding of the original P0 and discharge operation of the recording paper P can be performed selectively or both at the same time.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention enables the necessary sending, receiving, and copying operations to be performed with a single roller drive. The present invention relates to a drive mechanism for a facsimile machine.

0002

[Conventional technology]

A facsimile machine has a drive for performing three operations: sending, receiving, and copying. A mechanism is provided. In other words, a feed roller is placed in the document feed path, and a feed roller is placed in the document paper ejection path. A platen roller is provided on the output path, and the feed roller is rotated during transmission. The feeding operation of the received original is performed, and on the other hand, when receiving, the platen roller is rotated and recorded. Recording paper is ejected, and when copying, the feed roller is rotated. The document feeding operation and the recording paper ejection operation by rotating the platen roller are performed at the same time. It is now possible to

0003

[Problem that the idea aims to solve]

However, the current situation is that the feed roller and platen roller are driven separately and independently. In this drive mechanism, a dedicated motor must be installed for each of the two roller drives. The disadvantages of having a large number of parts and high costs were pointed out, and the overall size of the device was small and light. It is also a factor that hinders quantification.

0004 In order to solve the current problems, the present invention uses a single roller drive to solve the above-mentioned problems. A new type of drive for facsimile machines that can perform all the necessary operations. We are proposing a mechanism.

[0005]

[Means to solve the problem]

In the drive mechanism based on this invention, the feed, which was conventionally installed separately within the device, One roller is used both as a roller and a platen roller. and, On one side of the feed/platen roller, there is a paper feed path for the document fed by the roller. On the opposite side of the feed/platen roller, there is a A discharge route is provided.

[0006]

[Effect]

In this way, by rotating one feed/platen roller, It is possible to carry out loading of originals and ejecting of recording paper either alternatively or both at the same time. Becomes Noh.

[0007]

【Example】

Examples will be described below.

[0008] 1 to 3 illustrate an embodiment of the present invention. Feed/platen roller that doubles as a feed roller and a platen roller for ejecting recording paper. . This feed/platen roller 1 has a paper guide member. It is housed between the upper and lower housings 2A and 2B, which also serve as It is designed to rotate in the direction of the arrow (counterclockwise) around the axis.

[0009] On one side of feed/platen roller 1 is an imager attached to bracket 3. The image scanner 4 is placed in close contact with the feed/platen roller 1 between the roller and scanner. A paper feed path is provided for the document P0 fed in. This document feed path is From the document insertion slot 5 that opens in the housing 2A, along the upper housing 2A and the top of the roller. The original P0 is inserted through the gap between the original guide 6 and the roller scanner. The document P0 pressed by the image scanner 4 between the As the roller 1 rotates, the document ejector that opens in the lower housing 2B directly below the It is designed to be discharged from outlet 7.

0010 Then, when feeding the document using the feed/platen roller 1, the document P0 is fed into the feed platen roller 1. The image scanner 4, which is pressed against the feed/platen roller 1, feeds the document. image will be read. 8 is inside the document guide 6 and on the entrance side of the paper feed path. The document sensor installed in the figure is shown.

[0011] On the other hand, a thermal head 9 is in pressure contact with the opposite side of the feed/platen roller 1. The record is fed between the roller and thermal head/recorded by platen roller 1. A recording paper ejection path that conducts the paper P is provided. This thermal head 9 A spring 12 is interposed between the attachment plate 10 and the support plate 11 provided on the back side, It is normally pressed against the feed/platen roller 1 with a certain adjusted pressing force. In addition, an appropriate operating mechanism such as a solenoid (not shown) is installed. By the ON/OFF switching operation of this operating mechanism, during transmission, as shown in Fig. 2. , the thermal head 9 and the mounting plate 10 are separated from the roller surface It is now being pushed back.

0012 Then, the thermal head 9 is separated from the feed/platen roller 1. The recording paper P is connected to the recording paper ejection path between the roller and the thermal head in advance. Ru. The recording paper P is a roll paper R stored in the device behind the thermal head 9. The lower recording paper guide 13A placed below the thermal head 9 and the lower Electricity is now established between the roller and thermal head through the gap with Unzig 2B. Furthermore, the feed/platen roller 1 rotates while the thermal head 9 is in pressure contact. When the paper is rotated, the recording paper P printed by the thermal head 9 is transferred to the feed/platen roller. The original is ejected by the roller 1 in the opposite direction to the feeding direction, and placed above the thermal head 9. The paper is ejected to the outside through the gap between the upper recording paper guide 13B and the upper housing 2A. It has become so.

[0013] Note that the recording paper P that is electrically connected between the roller and the thermal head is When the door 9 is moved away from the rear retracted position, as shown in Fig. 2, there is no play with the roller surface. The feed/platen roller 1 is separated so that the ejection force associated with the rotation does not apply to it. However, in order to ensure that the recording paper stops at this time, the lower recording paper on the recording paper introduction side is The guide 13A is provided with light frictional resistance necessary and sufficient to prevent the movement of the recording paper P. A recording paper stopper 14 is attached to the recording paper.

[0014] With the drive mechanism configured as described above, the paper feed path of the document P0 and the ejection path of the recording paper P are One feed/platen roller 1 shared with the output path is rotationally driven. Therefore, all the paper feeding operations necessary for the facsimile machine can be covered.

[0015] That is, at the time of transmission, as shown in FIG. Insert the document P0 into the document feed path on the side, and move the thermal head 9 to the retracted position on the opposite side. When the feed/platen roller 1 is rotated after being set in the separated state, , the document P0 is fed between the rollers and the scanner, and is continuously scanned by the image scanner 4. The original P0 whose image has been read is discharged from the lower original discharge port 7.

[0016] Also, during reception, the thermal head 9 is pressed against the roller surface as shown in Figure 3. If you set the feed/platen roller 1 in the The recording paper P is continuously fed out from between the thermal head 9 and the thermal head 9. The recording paper P on which the received image has been reproduced is ejected from the upper recording paper ejection port (not shown). Ru.

[0017] Furthermore, during copying, as shown in FIG. Insert the original P0 into the original feeding path on one side of the After setting it in pressure contact with the surface, rotate the feed/platen roller 1. Then, loading and image reading of the original P0 is performed on one side of the original feeding path, and the other side The reproduction of the copy image and the ejection of the recording paper P may be performed at the same time on the side recording paper ejection path. It becomes.

[0018] In this way, one roller is used as the feed roller in the document feeding path and the recording paper ejection path. If it is designed to also serve as a platen roller in the route, it can be used as a fax machine. Only one drive roller is needed to perform the three basic operations of the equipment. Only one drive source (motor) is required, and the overall structure is simple with a small number of parts. A low-cost drive mechanism has also been realized, which contributes to making facsimile machines smaller and lighter. Something will happen.

[0019] In addition, as in the embodiment, the feed/platen roller 1 is clamped from both sides. A close-contact type image scanner 4 and a thermal head 9 are arranged facing each other so as to be embedded in each other. However, both of them are also used as paper pressing members for the feed/platen roller 1. Although it is reasonable, the reading system installed in the document feed path and the recording paper ejection path are Of course, the configuration of the printing system may be modified from the embodiments. In addition, the paper feed path for the document P0 provided on both sides of the feed/platen roller 1 is also recorded. The design of the path form of the recording paper P discharge path can also be changed as appropriate.

[0020] Figure 4 shows a front-loading type facsimile machine using the drive mechanism according to the present invention. A configuration example when applied to a device is shown. In other words, the document feed path and recording paper ejection path. A feed roller 1A and a platen roller 1B are provided which are driven separately and independently from each other. Compared to the conventional configuration example (Figure 5), the internal structure on the front side of the device is more compact. be aggregated. In addition, 15 is the discharge port for the recording paper P, and 16 is the CCD type image sensor. It shows. In addition, other symbols in the figures are used in common with the above embodiments. There is.

[0021]

[Effect of the idea]

As mentioned above, the feed roller provided in the document feed path and the recording paper ejection path One feed/platen roller can also be used as a platen roller. If the drive mechanism of this invention is adopted, a facsimile machine can be driven by a single roller. All necessary paper feeding operations can be covered, and only one drive roller is required. Since only a single motor is required, the drive mechanism has a simple structure with fewer parts. In addition, it is possible to reduce costs. In addition, facsimile machines are small and light. It is also effective in promoting quantification.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a drive mechanism showing one embodiment.

FIG. 2 is a side sectional view showing the transmitting operation of the main part in FIG. 1;

FIG. 3 is a side sectional view showing the receiving operation of the main part in FIG. 1;

FIG. 4 is a schematic cross-sectional view showing an example of the configuration of a facsimile machine equipped with a drive mechanism according to the present invention.

FIG. 5 is a schematic cross-sectional view showing an example of a conventional configuration of a front-loading type facsimile machine.

[Explanation of symbols]

1 Feed/platen roller 2A upper housing 2B lower housing 3 Bracket 4 Image scanner 5 Original insertion slot 6 Manuscript guide 7 Original output port 8 Document sensor 9 Thermal head 10 Mounting plate 11 Support plate 12 Spring 13A Lower recording paper guide 13B Upper recording paper guide 14 Recording paper stopper 15 Recording paper outlet 16 CCD type image sensor P0 Original (original paper feed path) P Recording paper (recording paper ejection path) R roll paper

Claims (1)

[Scope of utility model registration request] [Claim 1] A paper feed path for the document fed in by the roller is provided on one side of the feed/platen roller, and an ejection path for the recording paper ejected by the roller is provided on the opposite side of the feed/platen roller. Features of facsimile machine drive mechanism.