JP3060715U - Printer - Google Patents

Abstract

(57) [Summary] [Configuration] The rear cover 16 has a bottom surface 52 and a back surface 5.
4 and the rear portion 54 of the rear cover 16 is integrally formed with the back plate 22 of the sheet feeding unit 12. [Effect] The number of parts of the printer can be reduced.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a printer, and more particularly to a printer in which, for example, a part of a paper feeding unit is formed integrally with the printer.

[0002]

[Prior art]

 As this kind of prior art, there is Japanese Utility Model Publication No. 47476/1993 [B41J 19/20, 1/30] published on Dec. 15, 1993. In this prior art, a front cover of a paper feeding unit is formed integrally with a cover of a printer.

In this prior art, the paper feeding unit is installed so as to be exposed at the top of the printer main body, but separately from this, as shown in FIG. is there. In FIG. 1, a paper feed unit 1 is mounted on a print engine 3 by screws 2, and the print engine 3 is surrounded by a rear cover 4 and a bottom cover 5.

[0004]

[Problems to be solved by the invention]

 However, the conventional technique shown in FIG. 1 has a problem that the number of components is increased because the paper feeding unit, the rear cover, and the bottom cover are all formed as separate components, resulting in an increase in cost. Therefore, the main purpose of this invention is to provide a less expensive printer with a reduced number of parts.

[0005]

[Means for Solving the Problems]

 This invention is based on the fact that the back plate of the paper feed unit and the rear cover of the case are composed of integrally molded parts in a printer that incorporates a paper feed unit and a print engine that prints on the paper provided by the paper feed unit in the case. It is a printer characterized by the following.

[0006]

[Action]

 The rear cover is composed of a bottom surface and a rear surface, and the rear surface of the rear cover is composed of a back plate of the paper feeding unit and an integrally molded part.

[0007]

[Effect of the invention]

 According to this invention, the number of parts of the printer can be reduced. The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

[0008]

【Example】

 The printer 10 of the embodiment shown in FIGS. 2 and 3 includes a paper feed unit 12 and a print engine 14, and the paper feed unit 12 and the print engine 14 are incorporated in a case 20 composed of a rear cover 16 and a front cover 18. It is. More specifically, the paper supply unit 12 includes a back plate 22 and a paper supply roller 24, and a plurality of sheets 26 are stocked between the back plate 22 and the paper supply roller 24. A paper guide 28 is provided on the back plate 22 so as to be movable in the width direction of the paper 26, and the paper guide 28 contacts the side surface of the paper 26 and supports the paper 26. Further, a paper support member 30 is further provided above the back plate 22, and the paper support member 30 holds the paper 26 together with the back plate 22.

The print engine 14 includes an ink pen 32 and a base frame 34, and the base frame 34 further includes a paper discharge roller 36. The ink pen 32 and the paper discharge roller 36 are driven by a first motor 40 and a second motor 42 provided on a motor bracket 38, respectively, to print and discharge the paper 26.

When printing on the paper 26, the rotation of the second motor 42 that rotates the paper discharge roller 36 is transmitted to the transmission gear 46 a of the paper supply unit 12 by the gear 44, and transmitted from the transmission gear 46 a. After the rotation is sequentially transmitted to the gears 46b and 46c, the rotation is further transmitted to the paper feed roller 24 via the rotation shaft 48. In the paper feed roller 24, the rotation is transmitted to the roller mechanism by a gear installed inside, and the roller is driven to rotate. That is, when the paper feeding roller 24 performs a paper feeding operation at the time of printing, by rotating the roller, the paper 26 stocked between the back plate 22 and the paper feeding roller 24 is pressed and fed. The paper 26 fed by the paper feed roller 24 is separated one by one by a separator 50 provided at the bottom of the paper feed unit 12 and sent to the print engine 14. Further, a friction reducing projection 51 is provided in parallel with the separator 50, and the friction reducing projection 51 reduces friction when the sheet 26 is fed.

As described above, by using the paper feed roller 24 that can press the sheet 26 by the rotation operation, the space for installing the sheet press plate, the spring, and the like, which has been conventionally used to press the sheet 26, that is, The space on the back side of the back plate 22 can be eliminated. In the printing engine 14, the ink pen 32 moves in the width direction of the paper 26, and discharges ink from a nozzle (not shown) provided at the tip of the ink pen 32 to print the paper 26. The printed paper 26 is sent by a paper discharge roller 36 attached to the base frame 34, and is discharged onto a paper discharge tray 58 described later.

The rear cover 16 includes a bottom portion 52 on which the paper supply unit 12 and the print engine 14 are installed, and a rear portion 54 that rises with an inclination from one end of the bottom portion 52. That is, the rear cover 16 of this embodiment is formed by integrally forming the rear cover 4 and the bottom cover 5 in the conventional technique shown in FIG. The rear portion 54 of the rear cover 16 and the back plate 22 of the paper feed unit 12 are formed as an integral part. This became possible because the space on the back side of the back plate 22 was eliminated as described above. In this way, by integrating the rear cover 16 and the paper feed unit 12, the number of parts can be reduced as compared with the conventional case.

A paper discharge tray storage section 56 is provided on the bottom surface section 52 of the rear cover 16, and a paper discharge tray 58 is stored in the paper discharge tray storage section 56 so as to extend and contract. The paper output tray 58 is drawn out to the front of the base frame 34 of the print engine 14 during printing, and receives the paper 26 discharged from the base frame 34.

[Brief description of the drawings]

FIG. 1 is an illustrative view of a related art.

FIG. 2 is a perspective view showing a printer according to an embodiment of the present invention.

FIG. 3 is a sectional view showing a printer according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Printer 12 ... Paper feed unit 14 ... Printing engine 16 ... Rear cover 22 ... Back plate 52 ... Bottom part 54 ... Back part

Claims (3)

[Utility model registration claims] 1. A printer in which a paper feed unit and a print engine for printing on paper supplied from the paper feed unit are incorporated in a case, wherein a back plate of the paper feed unit and a rear cover of the case are integrally formed parts. Characterized by comprising
Printer. 2. The printer according to claim 1, wherein said printer further comprises a bottom cover, and said bottom cover is integrally formed with said back plate and said rear cover. 3. The printer according to claim 2, wherein said bottom cover includes a paper output tray storage section.