JPH0517053A - Printer and paper feeding device used therein - Google Patents

Abstract

PURPOSE:To omit the paper discharge mechanism of a paper feeding device by permitting the printing on a thick paper. CONSTITUTION:A thick paper feeding port 29 is formed on the rear wall of a printer body 22, and a thick paper sheet is manually supplied in a straight line form into a recording part 23 from the thick paper feeding port 29. The paper is discharged in the horizontal direction from a paper discharge port 28 to a discharged paper receiving part 37 in utilization of the upper surface of a paper feeding device body 35, and a paper discharge mechanism necessary for paper discharge is omitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer capable of printing on thick paper and a paper feeding device used for the printer capable of automatic paper feeding.

[0002]

2. Description of the Related Art Generally, as shown in FIG.
It is mounted on the printer body 2.

Then, the paper is inserted from the paper feed unit 3 into the paper feed port 4, inverted by the transport unit 5, sent to the recording unit 6, and printed. After that, the paper is a pair of paper discharge rollers 7.
The sheet receiving unit 1 through the sheet discharge port 8 by the sheet discharge mechanism 9.
Sent to 0.

That is, the paper is set and collected at the top of the printer body 2. In the figure, 11 is a picker roller, 12 is a spring, and 13 is a paper guide.

[0005]

However, in the above-mentioned prior art, the paper is reversed by the carrying section 5 in the printer body 2 while carrying the curved carrying path.
It is difficult to print thick paper that is difficult to bend.

Further, since the sheets are set and collected at the upper portion of the printer main body 2, a paper discharge mechanism 9 that pushes up the paper when discharging the paper is required in the paper feeder main body 1.

Further, in the paper feeding device, since the paper discharge receiving portion 10 is disposed in front of the paper feeding portion 3, the paper must be set avoiding the paper discharging receiving portion 10 when setting the paper. However, the work becomes complicated. Furthermore, since the paper feeding unit 3 and the paper ejection receiving unit 10 project upward, it may be inconvenient to set and collect the paper when the printer is placed at a high position because of the installation space.

SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a printer capable of printing thick paper, and a paper feeder capable of easily setting and collecting paper and reducing the number of parts.

[0009]

As shown in FIG. 1, a means for solving the problems according to the first aspect of the present invention comprises a printer body 22, a recording portion 23 for printing, and a conveying portion 24 for feeding a sheet to the recording portion 23. A thin paper feed port 27 and a paper discharge port 28 are formed on the front wall of the printer body 22, and a thick paper feed port 29 is formed on the rear wall of the printer body 22. A thin paper transport path a which is inverted from 27 by the transport unit 24 and is guided to the paper discharge port 28 through the recording unit 23, and a thick paper from the thick paper feed port 29 by the transport unit 24 to the recording unit 23 is provided with a thick paper feed path b which leads to the discharge port 28 through 23 in a substantially straight line.

According to a second aspect of the present invention, there is provided a means for solving the problems described above, which is arranged on the front side of the printer main body 22 and which feeds thin paper to the thin paper feed port 27 of the printer main body 22 inside the paper feeding device main body 35. That is, a paper ejection receiving portion 37 that receives the paper ejected from the paper ejection port 28 of the printer body 22 is provided on the upper surface of the paper feeding device body 35.

[0011]

In the means for solving the problems according to the first and second aspects, the thin paper set in the paper feed section 36 is guided to the paper feed port 27 during automatic paper feed. Then, it is inverted by the transport unit 24. Then, the recording unit 23 prints on thin paper.
After the printing is completed, the paper is guided from the paper discharge port 28 to the paper discharge receiving portion 37 using the upper surface of the paper feeding device main body 35.

On the other hand, in order to manually print thick paper or the like, the thick paper is inserted from the thick paper feed port 29. Then, the paper is sent to the transport unit 24, and thereafter, the paper is discharged in the same manner as the thin paper.
At this time, the thick paper feed path b guides the thick paper from the thick paper feed port 29 to the paper discharge port 28 in a substantially straight line.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic diagram showing the construction of a printer and a paper feeding device used in the printer according to an embodiment of the present invention, in which 20 is a printer and 21 is a paper feeding device.

Therefore, first, the configuration of the printer will be described. The printer 20 of this embodiment includes a printer body 22.
A recording unit 23 that prints downward, a conveyance unit 24 that is arranged below the recording unit 23 to feed the paper, and a pair of paper discharge that discharges the paper printed by the recording unit 23 to the outside of the printer body 22. A roller 25 and a pair of thick paper feed rollers 26 for feeding the thick paper to the recording unit 23 are incorporated.

The printer main body 22 is formed in a box shape and is placed vertically with respect to the paper feeding device 21. A thin paper feed port 27 is formed on the front wall of the printer body 22, a paper discharge port 28 is formed above the thin paper feed port 27, and a rear wall is substantially aligned with the recording unit 23 and the paper discharge port 28. In addition, a thick paper feed port 29 is provided for each. The cardboard feed port 29 is opened and closed by a cardboard manual feed guide 31 attached to the rear wall of the printer body 22 so as to be rotatable around the pins 30.

Then, in the printer main body 22, the thin paper set in the paper feed device 21 is inverted from the thin paper feed port 27 by the transport unit 24 and guided to the paper discharge port 28 through the recording unit 23. The U-shaped thin paper feed path a and the thick paper set in the manual feed guide 31 are aligned from the thick paper feed port 29 by the transport unit 24 through the recording unit 23 to the paper discharge port 28 in a substantially straight line. Leading cardboard path b
And are formed.

The recording section 23 has a wire dot type impact print head. Further, the recording section 23 is provided with a guide plate 32 for guiding the paper to the paper discharge roller 25.

The transport section 24 comprises a feed roller 33 for transporting the sheet to the recording section 23, and a paper guide 34 for guiding the thin sheet from the sheet feed port 27 to the feed roller 33. The paper discharge roller 25, the thick paper feed roller 26, and the feed roller 33 are driven by one motor.

Next, the structure of the sheet feeding device will be described.
The paper feeding device 21 includes a paper feeding unit 36 that conveys thin paper inside a paper feeding device main body 35 to a thin paper feeding port 27 of the printer main body 22.
And a paper ejection receiving portion 37 for receiving the paper ejected from the paper ejection port 28 of the printer body 22 on the upper surface of the paper feeding device body 35.
And are provided.

The paper feeding device main body 35 is formed in a box shape, and is horizontally placed on the front side of the printer 20 with respect to the printer 20. Then, on the side wall surface of the printer of the sheet feeding device main body 35, the sheet feeding unit 3 is communicated with the printer side sheet feeding port 27.
A paper feed port 38 for feeding the thin paper conveyed from 6 to the printer is formed.

The paper feed section 36 is provided with a paper feed tray 39 on which a thin paper is placed, which is swingably supported by the paper feed device main body 35.
A picker roller 40 arranged above the paper feed tray 39 to feed the thin paper on the paper feed tray 39 to the paper feed port 38, and a picker roller 40 arranged below the paper feed tray 39 to the picker roller 40.
It is composed of a spring 41 that biases to the side. Although not shown, a stopper is provided for stopping the paper feed tray 39 at the lower position against the spring 41 in order to easily perform the thin paper setting. This stopper stops the tray after the paper setting. It is supposed to be released.

The paper discharge receiving portion 37 is used by making the upper surface of the paper feeding device main body 35 flush with each other, and the upper surface is arranged at the same position as or slightly below the paper discharge port 28. .

The picker roller 40 is rotatably driven by a motor (not shown) in the main body 35 of the paper feeding device, and the control unit and the signal line of the printer main body are connected so as to interlock with each roller of the printer main body 22. Connected through.

In the above construction, during automatic paper feeding, the thin paper set in the paper feed tray 39 of the paper feed section 36 is conveyed through the thin paper conveyance path a. That is, the picker roller 40 is rotated by the input of the print start signal and is guided from the sheet feeding device side sheet feeding port 38 to the printer side sheet feeding port 27. Then, it is guided to the feed roller 33 along the paper guide 34 and is inverted by the feed roller 33. After that, the printing head of the recording unit 23 presses the thin paper through the ribbon to perform printing. After the printing is completed, the sheet is guided to the sheet discharge roller 25, and is guided by the sheet discharge roller 25 from the sheet discharge port 28 to the sheet discharge receiver 37 of the sheet feeding device 21.

At this time, since the paper discharge receiving portion 37 utilizing the upper surface of the paper feeding device main body 35 is made horizontal, the paper discharging mechanism of the paper feeding device 21 for pushing up the paper as in the prior art can be eliminated. Moreover, the upper surface of the paper feeding device main body 35 is attached to the paper receiving portion
Since it is used as, it is not necessary to separately provide a paper discharge receiving portion, and the number of parts can be reduced.

Further, since the sheet feeding device 21 mounted on the front side of the printer 20 can set and collect thin paper sheets at the front portion of the printer body 22, the operation becomes easy.

On the other hand, in order to manually print thick paper or the like, the thick paper is inserted from the thick paper feed port 29. Then, the thick paper is conveyed on the thick paper conveying path b, is sent to the feed roller 33 by the thick paper feeding roller 26, and is discharged similarly to the thin paper. At this time, the thick paper conveyance path b guides the thick paper in a straight line from the thick paper feed port 29 to the paper discharge port 28, and therefore, the thick paper can be printed without bending the thick paper.

The present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

For example, the recording unit 23 has a non-impact printer head of the ink jet system,
Alternatively, a transfer roller may be used as the feed roller by using electrophotography, and the recording unit 23 may be used as a photoconductor.

[0030]

As is apparent from the above description, according to the first aspect of the present invention, since the printer main body is provided with the substantially straight cardboard conveying path from the cardboard feed port to the paper ejection port, it is possible to print the cardboard. It will be possible.

According to the second aspect of the present invention, the discharge receiving portion is provided by utilizing the upper surface of the main body of the sheet feeding device, and the discharge receiving portion is made horizontal. Therefore, the conventional discharge mechanism for pushing up the sheet is eliminated. It is possible to reduce the number of parts.

Further, since the paper feeding device is located on the front side of the printer, it is possible to set and collect the thin paper at the front part of the printer main body, which has an excellent effect when the paper feeding and collecting operations are facilitated. .

[Brief description of drawings]

FIG. 1 is a schematic side view showing the configuration of the present invention.

FIG. 2 is a schematic side view showing a configuration of a conventional technique.

[Explanation of symbols]

22 Printer body 35 Paper feeder main body 23 Record Department 24 Transport section 25 Paper ejection roller 27 Thin paper feed port 28 Paper exit 29 Thick paper feed port 36 paper feeder 37 Paper output receiving section

Claims (2)

[Claims] 1. A recording unit for printing on a printer body,
A transport unit for feeding a sheet to the recording unit is internally provided, and a thin paper feed port and a paper discharge port are formed on the front wall of the printer body.
A thick paper feed port is formed on the rear wall of the printer body, and a thin paper feed path for guiding thin paper from the thin paper feed port by the feeding unit and guiding it to the paper ejection port through the recording unit, A printer provided with a thick paper feed path that leads from the thick paper feed port through the recording unit to the paper discharge port through the recording unit in a substantially straight line. 2. A paper feed unit, which is disposed on the front side of the printer body according to claim 1, and which conveys thin paper to a thin paper feed port of the printer body inside the paper feed device body, and an upper surface of the paper feed device body. A paper feeding device, which is provided with a paper ejection receiving portion for receiving paper ejected from a paper ejection opening of the printer body.