JPS6163467A - Recording apparatus - Google Patents

Abstract

PURPOSE:To make it possible to perform the separation of recording paper and an ink sheet in a state taking no large place, by bringing one end of the guide plate of the recording paper positioned in the vicinity of a roller into contact with the recording paper side of the ink sheet. CONSTITUTION:A platen roller is rotated to a clockwise direction by a motor as shown by the arrow and an ink sheet 1 and recording paper 5 reach the recording part between a thermal head 3 and a platen roller 4 while fed to the direction shown by the arrow B to receive thermal transfer recording. The ink sheet 1 and the recording paper 5 are held to a state weakly adhered through molten ink and integrally fed out from the part of the platen roller 4. Because one of guide plates 20 functions as a separation part 30 and held to the state contacted with the ink sheet 1, the leading end of the recording paper 5 is impinged to the leading end of the guide plate 20 constituting the separation part 30 and the recording paper 5 is separated from the ink sheet 1 and the leading end of the recording paper 5 is guided between the guide plates 20, 20. the recording paper and the ink sheet can be separated without providing the space for providing a separation mechanism.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a recording device, and more specifically, an ink sheet and a recording paper are sandwiched and conveyed to a recording section between a thermal head and a platen roller to perform recording by thermal transfer. This relates to a recording device.

[Prior Art] A thermal transfer type recording device is a device that performs thermal transfer while conveying an ink sheet and recording paper by sandwiching them between a recording section between a print head and a platen roller, and is used in facsimile machines and the like.

Conventionally, the ink sheet l to be superimposed on the recording paper has been used in the form of a roll wound around a winding core 2, as shown in FIG.

When using such an ink sheet, a travel path for the ink sheet and recording paper as shown in FIG. 2 is required.

That is, the ink sheet l unwound from the roll is guided between the thermal head 3 and the platen roller 4 via the tension roller 6, further passed through the tension roller 7, and wound onto the take-up shaft 8.

On the other hand, the recording paper 5 is placed under the ink sheet 1 and guided between the thermal head 3 and the platen roller 4.

During recording, the ink sheet 1 and recording paper 5 are conveyed in an overlapping state fQ as shown by arrow A, and recording is performed by thermal transfer.

If such a structure is adopted, it is safe for the user of the device or the user of the device to turn the ink sheet l along with the recording paper as shown in Figure 2, which makes loading the ink sheet extremely complicated, especially when recording. The disadvantage was that it was time-consuming to turn the hook at the part that separated the paper and ink sheet.

Furthermore, separate gI mechanisms for recording paper and ink sheets must be provided separately, which requires space and increases the size and cost of the apparatus.

[Purpose] The invention was made in order to eliminate the drawbacks of the conventional technology as described below.It is a small and compact device that is configured so that recording paper and ink sheet can be separated without taking up much space. The purpose is to provide a low-cost recording device.

[Example] The present invention will be described in detail based on the example shown in the drawings.

[First Embodiment] Figures 3 (A), (B) and 4 show an ink sheet cassette (hereinafter referred to as ink cassette) applied to the apparatus of the present invention.
) is shown.

The ink cassette 9 is integrally molded from synthetic resin or the like, and has bulges 9 a and 9 having arcuate cross sections at both left and right ends.
b is formed.

Cutouts 9c and 9d are formed at the lower ends of the inner side walls of these bulges 9a and 9b.

Further, bulges 9a and 9b are also provided on the substrate side of the ink cassette 9.
A relatively large opening 9e is formed between them.

Spindles 1 are provided at both longitudinal ends of one bulge 9a.
0 is rotatably supported on a shaft, and these spindles 10
．． The winding core 2 is held by 10.

Further, spindles 10 are rotatably supported at both longitudinal ends of the other bulging portion 9b, and a winding shaft 11 is held between them.

Then, the ink sheet l wound into a roll is attached to a bulging portion 9.
It is led out from the notch 9C of a and is wound around the winding shaft 11.

Next, an example of a recording apparatus to which an ink cassette having the structure as described below is installed will be described.

FIGS. 5 and 6 show a recording device exemplified as a facsimile machine, in which the same parts as in FIGS. 1 to 4 are denoted by the same reference numerals, and the explanation thereof will be omitted.

The recording paper 5 is housed in a roll in a recording paper holder 23 provided within the casing of the apparatus. The recording paper 5 guided from here comes into contact with the upper side of the platen roller 4, passes between two guide plates 20° and 20, and then reaches the paper ejection roller 2.
2 and 22, and is discharged from the apparatus through the cutters 21 and 21.

The ink cassette 9 is detachably attached to an upper base 13, which forms a part of the apparatus, via a not-shown engagement means.

The upper base 13 is fixed inside the document table cover 17, and the document table cover 17 can be freely opened and closed together with the upper base 13 about a shaft 19 as shown in FIG.

A thermal head 3 is arranged on the upper base 13 side in a state fixed to a head holder 16.

The thermal head 3 is attached to arms 16a at both ends of the head holder 16.
One end thereof is rotatably attached to the upper base 13 side via a shaft 29.

The lower limit of the free end of the thermal head 3 is regulated by a stopper (not shown).

A head press arm 14 is rotatably attached to the upper surface of the free end side of the head holder 16 via a shaft 14a, and a spring 15 is installed between the head press arm 14 and a fixed part of the device. It is strung up.

Therefore, the head press arm 14 is given a rotational force in the counterclockwise direction in FIG.

When the ink cassette 9 is attached to the upper base 13 side, the ink sheet 1 is guided between the thermal head 3 and the platen roller 4, overlaps the recording paper 5, and is connected to the platen roller 4 as shown in FIG. It is bent into a mountain shape with the contact part as the apex, and set in a state where the slack of Inksy) 1 is taken up.

In this state, the upper end of the guide plate 20, which is located closer to the recording paper ejection direction of the guide plates 20 and 20, is connected to the separating portion 30.
The recording paper 5 is in contact with the back side of the ink sheet 1, and the recording paper 5 is separated from the ink sheet 1 as described later.

Note that a guide plate 16b for guiding the ink sheet 1 is curved and guided below the thermal head 3.

On the other hand, the document table cover 17 is provided with a document width guide 18 that is movable according to the width of the document.

The original placed on the original platen cover 17 is separated into sheets one by one through a feed section 322 and a separation section 33 that constitute an automatic document feeder, and is fed while being sandwiched between a pair of original transport rollers 34 and 34, and then ejected. The documents are stocked on the document tray 27 by the roller pair 35.35.

On the other hand, the sent document is irradiated by the light source 28, and the reflected light is focused by the lens 25 via the mirrors 31 and 31 and formed into an image on the reading element 26.

Note that the reference numeral 24 indicates a power supply device.

When the recording device starts with the structure shown below,
A drive system (not shown) operates a take-up shaft 11, a platen roller 4. The paper discharge a-ra pair 22 and the like enter a standby state, and reading of the original is started.

Then, the thermal head 3 is driven in accordance with the read signal, and recording is performed on the recording paper 5 via the ink sheet 1 by thermal transfer.

During recording, the platen roller is rotated clockwise by a motor (not shown) as shown by the arrow in FIG. Recording is performed by thermal transfer in the recording section.

After recording has been completed, the ink sheet l and the recording paper 5 are weakly adhered to each other through the melted ink, and are fed out from the platen roller 4 as a unit.

Then, one side of the guide plate 20 becomes a separation part 30 and comes into contact with the ink sheet l, so that the recording paper 5
The leading edge of the recording paper is separated from the ink sheet 1, and the leading edge of the recording paper hits the leading edge of the guide plate 20 constituting the separating section.
．． The leading edge of the recording paper 5 is guided between 20 and 20 seconds.

The ink sheet l is wound onto the take-up shaft 11 side, and the recording paper 5 passes between the guide plates 20.20 and the paper ejection roller pair 22.2.
2, and is cut by the cutter 21 after recording is completed.

In this way, there is no need to separately provide the minute [1, g11] structure, and a recording apparatus that can reliably separate the recording paper and the ink sheet without providing a space for providing the minute g11m structure can be obtained.

[Second Embodiment] FIG. 7 explains a second embodiment of the present invention. In this embodiment, the guide plate 20 on the side of the guide plate 20, 20 located on the winding shaft 11 side A flexible separation sheet 36 is fixed to the tip of the sheet.

This separation sheet 36 is made of, for example, a synthetic resin thin plate, and is thinner than the guide plate 20.

Therefore, it is easy to get between the recording paper 5 and the ink sheet 1, and the ink sheet 1 can be easily separated, and the ink sheet 1 will not be damaged or cut, and no accidental cutting of the ink sheet 1 will occur.

Of course, a metal plate spring or the like may be used instead of the synthetic resin thin plate.

[Effect] As is clear from the above description, according to the present invention, one end of the guide plate of the recording paper located near the platen roller is
A structure is adopted in which the ink sheet is placed in contact with the recording surface side of the ink sheet near the platen roller where the recording paper is led out after recording. There is no need to provide a separating mechanism, there is no need for a space for providing a separating mechanism, the overall size can be reduced, and a recording apparatus that can reliably separate recording sheets at low cost can be obtained.

[Brief explanation of the drawing]

``51 IA and Figure 2 explain the conventional structure,
FIG. 1 is a perspective view of the ink sheet, FIG. 2 is an explanatory diagram showing the arrangement of the ink sheet and recording paper, and FIGS. 3 to 6 illustrate the first embodiment of the present invention. (A) is a partially cutaway view of the ink cassette; Figure 53 (B) is a vertical cross-sectional side view of the ink cassette; Figure 4 is a perspective view of the ink cassette; Figures 5 and 6 show the ink cassette installed. FIG. 7 is an enlarged sectional view of a main part of a second embodiment of the present invention. 1... Ink sheet 3... Thermal head 4.
...Platen roller 5...Recording paper 9...Ink cassette 17...Document cover zO...Guide plate
30...Separation section 36...Separation sheet Patent applicant: Canon Corporation. Agent Patent Attorney Na Kato, i-1

Claims (2)

[Claims] (1) In a recording device in which an ink sheet and a recording means are provided on a member side rotatably connected to the main body side, a platen roller and a recording paper conveyance system are provided on the main body side, and the recording paper is stored, A recording apparatus characterized in that one end of a recording paper guide plate provided on the apparatus main body side and near a platen roller is disposed in contact with a recording surface side of an ink sheet. (2) A separation sheet is provided at one end of the guide plate of the recording paper, and the guide plate is in contact with the recording surface side of the ink sheet via the separation sheet. recording device.