JPS63232565A - Copying machine - Google Patents

Abstract

PURPOSE:To make the whole body of a case smaller in size so that the picture on recording paper can look upward, by providing thermal heads in parallel with each other beside an ink ribbon feeding and winding sections, which are arranged in the longitudinal direction, and feeding recording paper from the inside of the case to the side of the case after passing through the bottom side of the supplying and winding sections. CONSTITUTION:The feeding section (winding core) 28 and winding section (winding core) 29 of an ink ribbon 31 are arranged in the longitudinal direction and thermal heads 30 are provided in parallel with each other beside the feeding and winding sections. When the copying machine of this invention is operated with recording paper (a) being inserted from a paper feeding port 50 and its leading edge being put between a platen 46 and ink ribbon 31, the winding core 29 is rotated and the ink ribbon 31 is wound around the core 29 and the picture of an original is transferred to the recording paper (a) through the ink ribbon 31 by means of the thermal heads 30. After the transfer, the recording paper (a) is discharged from a paper discharging port 51 after passing through the bottom side of the winding cores 28 and 29 by the rotation of the platen 46. Therefore, the picture on the recording paper (a) looks upward and this transfer unit 26 can be made compacter when the winding cores are set closer to each other.

Description

[Detailed Description of the Invention] [Statement of the Invention] (Industrial Application Field) The present invention is directed to a small multiplexer that is placed on a tabletop or the like.
Regarding machines.

(Prior Art) The structure of a conventional copying machine of this type is shown in Fig. 4, where 1 is a case, and 2 is a reading device that reads images (characters, figures, etc.) of a document set on the top surface of the case 1. be. Inside one end side of the case 1, an ink ribbon supply section 3 and a winding section 4 are arranged horizontally in parallel, and the ink ribbon is disposed between the supply section 3 and the winding section 4. 5 is hung so that it can run. A thermal head 6 is provided between the supply section 3 and the winding section 4, and a platen 7 is provided above the thermal head 6, sandwiching the ink ribbon 5 therebetween. Further, a paper feed port 8 is formed on the upper surface of the case 1, a paper discharge port 9 is formed on one end surface, and an ejection port 10 is formed on the lower surface, and the ejection port '10 is provided with an opening/closing fill.

Then, set the original on the top surface of the case 1, insert 111 sheets of recording paper a into the case 1 from the paper feed port 8, and insert the leading edge between the platen 7 and the ink ribbon 5. When the copying machine is turned on in this state, the image of the document is read by the reading device 2, and the signal is sent to the thermal head 6. In response to this, the ink ribbon 5 and the recording paper a integrally run over the thermal head 6 by the rotation of the winding unit 4 and the rotation of the platen 7, and during this run, the image is transferred to the ink ribbon 5 by the thermal head 6. The ink ribbon 5 is sequentially transferred to the recording paper a through the ink ribbon 5.
is wound up by the winding section 4, and the recording paper a is sent out to the paper discharge port 9.

By repeating such copying operations, after the entire length of the ink ribbon 5 has been used and is wound up by the winding section 4, the opening/closing lid 11 is opened and the used ink is discharged from the outlet 10. Take out the roll of ribbon 5 and insert a new ink ribbon 5.
The roll is assembled into the supply section 3, and the end thereof is hung on the winding section 4 (11-).

(Problem to be solved by the invention) However, in the conventional structure, the thermal head 6 is disposed between the ink ribbon supply section 3 and the take-up section 4, so the supply section 3 and the take-up section It is necessary to arrange the problem with a large difference from case 4, and for this reason, especially in case 1.
The horizontal length of the paper becomes longer and larger, making it inconvenient to transport, store, or use on a tabletop.
In addition, since the thermal head 6 is arranged on the lower surface side of the recording paper a, the image is transferred to the lower surface of the recording paper a. Therefore, when the recording paper a is still being fed out from the paper ejection port 9, the image transfer state is It was troublesome that the recording paper a had to be turned over each time. This invention is an LI-based solution to such problems.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention arranges an ink ribbon supply section and a winding section vertically inside a case, A thermal head is arranged in parallel on the side 16 of the supply section and the winding section, and a part of the ink ribbon is hung over the surface of the thermal head on the opposite side of the supply section and the winding section, and the ink ribbon is held between the ends. A platen is brought into contact with the thermal head, a recording paper is inserted between the platen and the ink ribbon from the top surface of the case, and the image of the document is transferred to the recording paper via the ink ribbon by the thermal head. The recording paper is fed out from inside the case to the side thereof through the lower side of the supply section and the winding section by rotation of the platen.

(Function) Since the supply section and the winding section of the ink ribbon are arranged in the vertical direction, and the thermal heads are arranged in parallel on the sides of the supply section and the winding section, the supply section and the winding section are arranged in parallel. The recording paper can be placed close to each other, which allows the case to be made compact.Also, the recording paper can be inserted between the platen and the link ribbon from the top of the case, and the recording paper can be placed in the ink ribbon supply section and the ink ribbon take-up section. Since the recording paper is fed out to the side of the case through the lower side of the case, the recording paper is fed out of the case with the image on the paper facing upward.

(Embodiment) Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 3.

In the figure, reference numeral 15 denotes a case, and an original glass 16 is provided on the upper surface of this case 15, and a reading device 17 is provided on the lower surface side of this original glass 16. The reading device 17 includes a reading sensor 19 mounted on a horizontal rail 18 so as to be freely movable, and a belt mechanism 20 that reciprocates one reading sensor along the rail 18.

1] surface and end surface on one end side of the case 15 are cut out and opened, and an L-shaped opening/closing lid 24 is provided in this opening portion 23. The opening/closing lid 24 is rotatably supported via a support shaft 25, and the opening portion 23 can be opened by rotating the opening/closing lid 24 upward about the support shaft 25. It has become. A transfer unit 26 is provided inside the open portion 23, and this transfer unit 26 has a pair of cylindrical winding cores 2 inside a frame 27 having a U-shaped cross section.
8.29 and a thermal head 30 are incorporated. The winding cores 28 and 29' are connected to both side plates 27a and 2 of the frame 27.
The core 28 of one of the cores 28 constitutes a supply part of the ink ribbon, and the core 29 of the other constitutes a take-up part, and the core 28 of one of the cores 28 constitutes a take-up part, and the outer periphery of the core 28 of one of the cores 28 constituting the supply part constitutes a winding part. The ink ribbon 31 is wound in a roll shape, and the leading end side of the ink ribbon 31 is the other winding core 29 that constitutes a winding part.
11; is attached to the outer periphery of the
A support shaft 32° 33 is provided on one side plate 27a of the frame 27 so as to be able to move forward and backward with respect to the inside of the steel plate 27a.
These support shafts 32, 33 are elastically biased in the direction of their advancement via springs 34, 34. Further, the one support shaft 3 is attached to the other side plate 27b of the frame 27.
A support hole 35 is provided opposite to the other support shaft 33, and a drive shaft 36 is provided opposite to the other support shaft 33, and a connection hole 37 is formed in the drive shaft 36. and the one winding core 28
One end 41 is removably engaged with the end face of the three support shafts on the i side, the other end is fitted into the support hole 35 so as to be freely insertable and removable and rotatable, and one end of the other winding core 29 is The support shaft 3
3, and the other end is detachably inserted into and inserted into the connection hole 37 of the drive shaft 36, and is fitted to rotate integrally with the drive shaft 36. Therefore, each support shaft 32
．． By retracting the respective winding cores 28 and 33 against the springs 34 and 34, one end of each winding core 28 and 29 can be released, and in this state, each winding core 28 and 29 is moved to the side where the side plate 27a is arranged. By this, these winding cores 28 and 29 are connected to the support hole 35 and the connection hole 37 of the drive shaft 36.
It can be pulled out and removed from the frame 27.

Both of the winding cores 28 and 29 are arranged vertically in the vertical direction of the case 15, and the thermal head 3o is arranged in parallel on the sides of the winding cores 28 and 29, and the winding of the thermal head 3o is arranged in parallel. A part of the ink ribbon 31 is wrapped around the surface 30a on the opposite side of the core 28°29. Also,
A gear 39 is provided on the outer surface of the side plate 27b (7) of the frame 27.
．． 4C1 (further, a gear 41 is attached to the end of the drive shaft 36, the gear 41 is attached to the gear 40, and the gear 4o is attached to the gear 3).
9 are meshed with each other. The entire transfer unit 26 configured as described above is rotatably supported toward the side of one end of the case 15 via the support bin 42.

A motor 45 and a platen 46 are provided in the case 15, and the platen 46 is connected to the surface 3 of the thermal head 30.
They face each other so as to sandwich and contact the ink ribbon 31 with the ink ribbon 31. The motor 45 and the platen 46 are connected by a drive belt 47, and the platen 46 and the reading device 17 are connected to each other by a drive belt 47.
The belt mechanism 20 is connected by a drive belt 48.

Further, a gear 49 is attached to the platen 46, and this gear 49 is removably engaged with the gear 39 of the transfer unit 26.

On the other hand, there is a paper feed port 50 on the top surface of the case 15, and an opening/closing M
A paper discharge port 51 is formed at the lower end of each of the paper sheets 11 . Note that 52 is an electronic circuit mechanism built into the case 15, and 53 is a document cover provided on the document glass 16 so as to be openable and closable.

Next, we will discuss the effect.

Claims (1)

[Claims] A supply section and a take-up section of the ink ribbon are arranged vertically inside the case, and a thermal head is arranged side by side to the supply section and take-up section, and the supply section and take-up section of the thermal head are arranged side by side. The middle of the ink ribbon is hung over the opposite surface of the ink ribbon, the platen is brought into contact with the thermal head by sandwiching the ink ribbon, and a recording paper is inserted between the platen and the ink ribbon from the top surface of the case. The thermal head transfers the image of the document onto the recording paper via the ink ribbon, and the recording paper is sent out from inside the case to the side thereof through the lower side of the supply section and the winding section by rotation of the platen. Copy machine.