JPH06206352A - Image recording apparatus - Google Patents

Abstract

PURPOSE:To simplify a paper feed mechanism and,' stabilize paper feed, in a cassette paper feed type image recording apparatus, by directly feeding cut recording paper to a platen, roller from a paper feed cassette by a paper feed roller. CONSTITUTION:When cut recording paper P is delivered from a paper feed cassette 2 by a paper feed roller 3, the cut recording paper P is directly fed to the printing surface of the platen roller 8 arranged in the vicinity of the front of the paper feed cassette 2 while the rear surface thereof is supported and guided by a guide 19. The recording paper P is nipped between the platen roller 8 and a thermal head 9 along with an ink ribbon R to be subjected to thermal transfer. The cut recording paper P subjected to thermal transfer is delivered from the platen roller 8 to be separated from the ink ribbon R and guided by guides 20, 21 to be discharged to a discharge part 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette sheet feeding type image recording apparatus.

[0002]

2. Description of the Related Art As an example of this type of recording apparatus, FIG. 3 shows a conventional example of a cut sheet (plain paper) recording type facsimile apparatus. In this facsimile apparatus, a paper feed cassette 2 that can be inserted into and removed from the front of the main body is provided at the bottom of the apparatus main body 1, and cut recording paper P is accumulated and stored in this cassette 2. The cut recording paper P accumulated in the cassette 2 is pushed upward by a cassette bottom plate (not shown) in the cassette insertion state, and the cut recording paper P of the paper feed roller (half-moon roller) 3 provided in the main body 1 is It is designed to be set directly below.

When the paper feed roller 3 is rotated once at the time of reception or the like, the recording paper P picked up one by one from the paper feed cassette 2 by the paper feed roller 3 is forwarded, and the conveyance rollers 4, 5 are fed. It is conveyed to the recording section 7 at the upper part of the main body through the recording paper path 6 provided with. The cut recording paper P fed upward to the recording portion 7 through the recording paper passage 6 is superposed with the ink ribbon R fed out synchronously from the ribbon package 10a of the ink ribbon unit 10 loaded in the recording portion 7. Thermal head 9 that is electrically connected to the printing surface of the platen roller 8 and is pressed against the platen roller 8.
Thus, the ink of the ink ribbon R is thermally transferred to record a received image and the like. The cut recording paper P thermally transferred and recorded by the platen roller 8 is provided on the upper surface of the main body from the recording paper discharge port 11 after being separated from the ink ribbon R wound on the winding package 10b of the ink ribbon unit 10. It is designed to be discharged to the discharge unit 12.

In addition, in FIG. 3, 13 is a scanner section for reading a transmission original, 14 is a power source section provided in the main body 1, and 15 is a side opening / closing on the side surface of the main body facing the recording paper feeding portion from the paper feeding cassette 2. When the recording paper jam occurs in the transport path from the paper feed cassette 2 to the recording paper path 6, the recording paper cover 15 is a retractable recording paper cover that can be freely attached. The jam can be released by tilting it toward the fulcrum and opening it.

[0005]

As shown in the above-mentioned conventional example, in the existing cassette paper feed type image recording apparatus, the cut recording paper P fed from the paper feed cassette 2 by the paper feed roller 3 is recorded in the recording section 7. Body 1 against platen roller 8
Conveying rollers 4 and 5 provided in the recording paper conveying path inside
It is usual to feed the paper through paper feed such as.

However, in the case of adopting the above-described recording paper conveyance system, it is necessary to provide a long recording paper conveyance path in the main body 1 and install the conveyance rollers 4 and 5 at various places on the way. Therefore, it is inevitable that the paper feeding mechanism in the main body 1 becomes very complicated. Further, it is pointed out that if the transport distance is long, skewing of the cut recording paper P and uneven feeding tend to occur, and it becomes difficult to control the operation of the transport rollers 4 and 5.

The present invention pays attention to the problems of the present situation,
(EN) Provided is a cassette-feeding type image recording apparatus which is effective in simplifying a paper feed mechanism in the main body and stabilizing the feed of recording paper to a platen roller.

[0008]

In the image recording apparatus according to the present invention, as means for achieving the above object, cut recording paper fed from a paper feed cassette by a paper feed roller, It feeds directly to the platen roller without passing through.

[0009]

With this configuration, it is not necessary to provide a long recording paper feed path in the main body of the apparatus, and it is also unnecessary to provide a feed roller for feeding the cut recording paper to the platen roller in the feed path.

[0010]

FIG. 1 shows an outline of a cut sheet recording type facsimile apparatus shown in comparison with the conventional example shown in FIG. 3 as an embodiment of a cassette sheet feeding type image recording apparatus according to the present invention. ing.

In this facsimile apparatus, a recording section 7 is provided in a side portion of the apparatus main body 1 in the vicinity of a paper feed cassette 2 inserted in the lower portion of the main body, and the paper feed roller is fed from the paper feed cassette 2. The cut recording paper P fed out in 3 is directly fed to the platen roller 8 of the recording unit 7. That is, as shown in the enlarged view of FIG.
When the cut recording paper P is fed out from the paper feeding cassette 2 by rotating the paper, the cut recording paper P is provided on the printing surface of the platen roller 8 arranged near the front of the paper feeding cassette 2 and below the guide. It is directly fed along 19 and is nipped between the ink ribbon R and the thermal head 9. The recorded cut recording paper P thermally transferred on the printing surface of the platen roller 8 is fed out by the platen roller 8 and separated from the ink ribbon R, and then the guide 20 provided above the platen roller 8, A U-turn is made to a recording paper passage 22 formed by 21 and the recording paper is ejected to a recording paper ejecting portion 23 provided in the main body 1 at a position directly above the paper feeding cassette 2.

The platen roller 8 arranged in the recording unit 7 is provided at a fixed position in the main body 1, and the thermal head 9 pressed against the platen roller 8 and the cut recording paper P are superposed on each other. The ink ribbon unit 10 for conducting the ink ribbon R between the platen roller 8 and the thermal head 9 is separable from the platen roller 8 mounted on the main body 1 side, a guide member, etc. It is attached to the inner surface of a retractable recording paper cover 15 which is attached to the side surface of the main body so as to be openable and closable so as to face the recording paper feeding portion. In addition, common reference numerals are shown in FIG. 1 for parts and members corresponding to FIG.

In the case of the facsimile apparatus having such a structure, the cut recording paper P fed from the paper feed cassette 2 by the paper feed roller 3 is directly fed to the platen roller 8 of the recording section 7. Therefore, the distance of the recording paper conveyance path provided in the apparatus main body 1 becomes very short, and no conveyance roller for feeding the cut recording paper P to the platen roller 8 is required at all, so that it is provided in the apparatus main body 1. Compared with the conventional paper feed mechanism, the paper feed mechanism can have a very simple structure and a small number of parts. Further, if the recording paper is fed directly to the platen roller 8 by the paper feed roller 3, skewing of the cut recording paper P and uneven feeding which become apparent when feeding a long recording paper feed path by the feeding roller are avoided. As a result, the feeding of the recording paper to the platen roller 8 is stabilized, and the image quality and printing accuracy of the printing recording paper are improved.

By the way, in the above embodiment, the paper feed cassette 2
Although the case where the half-moon roller is used as the paper feed roller 3 for feeding the cut recording paper P from the above is illustrated, it is of course possible to use a circular roller instead of this. Further, regarding the positional relationship between the paper feed cassette 2 and the recording unit 7 in the apparatus main body 1, the cut recording paper P picked up by the paper feed roller 3 from the paper feed cassette 2 can be independently delivered to the platen roller 8. Within the range, it is not restricted by the positional relationship of the embodiment, and other free arrangement can be selected. Although a facsimile apparatus has been described in the embodiment, the present invention can be generally applied to a cassette sheet feeding type image recording apparatus.

[0015]

As described above, in the image recording apparatus of the present invention, the cut recording paper fed from the paper feed cassette by the paper feed roller is directly fed to the platen roller, so that the long length is provided in the apparatus main body. It is not necessary to provide a special recording paper transportation path, and it is not necessary to provide a transportation roller for feeding the cut recording paper to the platen roller in the transportation path. This simplifies the paper feeding mechanism in the main body and reduces the platen roller. It is possible to achieve a significant improvement effect in stabilizing the feeding of the recording paper with respect to.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a facsimile apparatus showing an embodiment.

FIG. 2 is an enlarged view of a main part of FIG. 1 showing an operation of the embodiment.

FIG. 3 is a schematic sectional view of a conventional facsimile device.

[Explanation of symbols]

 1 Device Main Body 2 Paper Feed Cassette 3 Paper Feed Roller 7 Recording Section 8 Platen Roller 9 Thermal Head 10 Ink Ribbon Unit 15 Recording Paper Cover 16 Hinge Pins 19 Guides 20, 21 Guides 22 Recording Paper Passage 23 Recording Paper Ejection Section R Ink Ribbon P Cut Recording paper

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Masahiro Fujimaru 136 Takeda Mukoyo-cho, Fushimi-ku, Kyoto Murata Machinery Co., Ltd.

Claims (1)

[Claims] 1. An image recording apparatus, wherein cut recording paper fed from a paper feed cassette by a paper feed roller is directly fed to a platen roller.