JP2003159852A - Printing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printing apparatus equipped with a protective plate for smoothing a paper supply route to eliminate trouble at the time of printing in a printer receiving the supply of paper from the back surface of the printer. <P>SOLUTION: In the printing apparatus 1 having a connector 3 for wiring provided to the back surface 1a thereof, the protective plate 2 for protecting the connector 3 for wiring and cables 4 is provided to the back surface of the printing apparatus 1 and a guide part 6 for regulating the width of paper P fed into the printing apparatus 1 is provided to the protective plate 2. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing apparatus, and more particularly to a printing apparatus to which paper is supplied from the outside.

[0002]

2. Description of the Related Art As shown in FIG. 3, in a printer 1, cables 15 for exchanging print information with a power supply line, a personal computer, a network, etc. protrude from a rear surface 1a. Since these cables 15 are projected to the outside of the printing apparatus, they are arranged on the back surface 1a which is invisible from the front side as shown in FIG. In this case, the printer 1 may be pressed against the wall 20 together with the printer 1 at the time of installation, or the printer 1 may be pressed against the wall 20 due to carelessness or the like in a permanently installed state after installation. In this case, the cables 15 projecting from the printing apparatus 1 hit the wall 20 and receive an impact, so that the cables 15 are sandwiched between the printing apparatus 1 and the wall 20. As a result, contact between the printer 1 and the connector portion of the cables 15, etc. may occur or may be damaged. As a solution, it is conceivable to install the connector part inside the device, but this will reduce the internal equipment space and will take time for wiring to the inner connector part.

On the other hand, in the printing apparatus 1 which supplies continuous Z-folded paper (hereinafter, fanfold paper) P in FIG. 4 from the outside, the fanfold paper P is pulled out from the laid paper box 10 and the rear surface of the printing apparatus 1 is pulled out. The sheet is guided to the sheet intake port 5 provided in 1a. In this case, since the fanfold paper P is lifted almost vertically in the vertical direction and then bent at a substantially right angle immediately before the paper intake port 5, a load is applied to the paper. As a result, the fanfold paper P may be broken at a score line (not shown), and in a printing paper or the like on which the label is temporarily attached, the adhesive label with a laminated structure is peeled off at this portion, It may cause clogging. Further, since the conveyance distance from the paper box 10 which is the paper supply position to the paper intake port 5 of the printing apparatus 1 is long, the paper P may meander and the printing position may shift.

In the above case, a guide plate (not shown) for restricting the width of the paper is provided inside the printer 1.
Since the conveyance distance from the sheet supply position to the guide plate inside the printer is long, there is a problem that meandering cannot be suppressed.

[0005]

SUMMARY OF THE INVENTION The present invention has been made based on the above problems, and an object of the present invention is to provide a protective plate for protecting wiring connectors and cables on the rear surface of a printing apparatus to provide wiring connectors and cables. It is an object of the present invention to provide a printing apparatus that surely protects the objects and suppresses the meandering of the sheet conveyed to the sheet intake port of the printing apparatus.

[0006]

According to a first aspect of the present invention, in order to achieve the above object, in a printing apparatus having a wiring connector on its back surface, protection for protecting the wiring connector and cables is provided. In the printing apparatus, the plate is provided on the back surface of the printing apparatus, and the guide plate for limiting the width of the sheet conveyed into the printing apparatus is provided on the protection plate. According to the first aspect of the invention, since the protective plate having the guide plate is provided on the back surface of the printing apparatus, it is possible to prevent the damage of the cables and to suppress the meandering of the paper.

According to a second aspect of the present invention, in the first aspect of the invention, the guide portion is provided with a pair of guide plates, and the pair of guide plates are provided so as to be close to each other. The printing apparatus according to claim 1. According to the invention of claim 2, even if the paper width is different,
It can be adjusted to the paper width and can be adjusted according to various paper widths.

According to a third aspect of the present invention, in the first or second aspect of the invention, the guide portion is provided on the downstream side in the conveying direction after the sheet comes into contact with the protective plate. The printing apparatus according to claim 1 or 2. According to the third aspect of the invention, since the sheet is provided at the portion where the conveyance angle changes from the rising direction of the sheet, the guide plate is provided at the portion where the sheet easily meanders, so that the meandering can be extremely suppressed.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention is shown in FIGS.
It will be described based on. It should be noted that the same parts as those of the related art are designated by the same reference numerals, and detailed description thereof will be omitted. FIG. 1 is a schematic side view of a printing apparatus of the present invention, and FIG. 2 is an exploded perspective view of a protective plate.

The printing apparatus 1 is mounted on the installation table 12. On the back surface 1a of the printing apparatus 1, connectors 3 including a power connector 3a, a network cable connector 3b, ..., A power line 4a, a network cable 4b ,.
The wirings 4 including the above are provided so as to project from the back surface 1a. A horizontally long paper intake port 5 is provided in the upper portion of the back surface 1a of the printing device 1, and a paper (fanfold paper) P is drawn into the printing device 1 through the paper intake port 5. A protective plate 2 formed in a substantially U-shape is installed in the vicinity of the lower side of the sheet intake port 5 in a state of protruding horizontally from the rear surface 1a. The protective plate 2 is protruded by the connectors 3 and the wirings 4. It is long enough to protect.

For example, the length of protrusion of the protective plate 2 from the back surface 1a (between the printer 1 and the wall 20) is determined by the connectors 3
The length of protrusion from the back surface 1a is 65 mm or more, preferably 80 mm to 90 mm. Furthermore, the protective plate 2 is
It may be detachably held in the printing apparatus 1.

Next, the protective plate 2 will be described with reference to FIG. The protective plate 2 mainly includes a pair of guide plates 6 and 6 (guide portions), a pair of racks 7 and 7 and a pinion 8. The protective plate 2 has two elongated hole guides 2a, 2a formed in a direction orthogonal to the width direction of the paper P, and the pair of guide plates 6, 6 are engaged with the elongated hole guides 2a, 2a. Has been.

The racks 7, 7 have a pair of holes 7a ... 7 respectively.
a is formed so that it can be fitted to an engagement shaft (not shown) formed on the guide plates 6 and 6. Further, the long holes 7b, 7b formed in the racks 7, 7 are engaged with the pins 7c, 7c provided on the protection plate 2 so as to be slidable. The pinion gear 8 meshes with the pair of racks 7, 7 and is rotatably provided on the protective plate 2 by a screw 9. As a result, the pair of racks 7, 7 are provided so as to be movable in the horizontal direction with respect to the protective plate 2, and
The pair of guide plates 6 and 6 are provided such that they can move freely as the pair of racks 7 and 7 move.

A concave portion 11 is formed in the sheet conveying path of the protective plate 2, and the protective plate 2 is formed by the concave portion 11.
Even when the sheet P contacts the wall 20, the sheet P can be conveyed to the sheet intake port 5 of the printer 1.

The operation of the printing apparatus 1 with a protective plate constructed as described above will be described. FIG. 1 shows a state in which the printing apparatus 1 having the protective plate 2 on the back surface 1 a is pressed against the wall 20. Since the protection plate 2 projects more than the connectors 3, when it is pressed against the wall 20, it comes into contact with the wall 20 before the connectors 3. Therefore, the connectors 3 are not directly subjected to impact or load from the wall 20. At this time, the wirings 4 may come into contact with the wall 20, but the wirings 4 are not subjected to a shock enough to cause a problem.

Further, the paper P pulled out from the paper box 10 laid under the printer 1 is the back surface 1 of the printer 1.
The sheet P is raised toward the protective plate 2 provided on a, is guided in the width direction of the paper P by the guide plates 6 and 6 through the concave portion 11 of the protective plate 2, and is gently changed to an angle close to horizontal. After that, the sheet is guided to the sheet intake port 5 provided on the back surface 1a of the printing apparatus 1.

As a result, the sharp bending that occurs in the conventional paper P does not occur, so that the paper P is not broken at the score line (not shown). Further, since the angle of the sheet P is once eased by the protective plate 2 immediately before the take-in port 5, it is possible to prevent the label peeling in the sheet with the label. By providing the guide plates 6 and 6 on the protection plate 2, the meandering of the paper P can be suppressed and the paper P can be taken into the paper take-in port 5 even if the distance from the paper box 10 to the protection plate 2 is long. . The protective plate 2 is formed by bending a steel plate and can be manufactured at low cost.

The present invention is not limited to the above embodiment, and the protective plate 2 may be installed on the back surface of the installation base 12 of the printing apparatus 1.

[0019]

As described above in detail, according to the printing apparatus of the present invention, the protection plate protruding from the back surface of the printing apparatus can surely protect the cables even if the cables come into contact with the wall. Since the guide plate is installed on the paper, it is possible to suppress the meandering of the paper in front of the paper intake port, and it is possible to prevent problems such as misalignment of printing and paper jams during printing.
It is possible to smoothly convey the paper.

[Brief description of drawings]

FIG. 1 is a schematic side view of a printing apparatus with a protective plate according to the present invention.

FIG. 2 is an exploded perspective view of a protection plate of the present invention.

FIG. 3 is a side view of a conventional printing device.

FIG. 4 is a schematic side view showing another conventional printing apparatus configuration.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Printing device, 2 ... Protection plate, 3 ... Connectors, 4 ... Wirings, 5 ... Paper intake port, 6 ... Guide plate, 10 ... Paper box, 11 ... Concave, 20 ... Wall, P ... Paper (fanfold paper)

Claims (3)

[Claims] 1. A printing device having a wiring connector on a back surface thereof, wherein a protective plate for protecting the wiring connector and cables is provided on a back surface of the printing device, and a paper sheet is conveyed to the printing plate inside the printing device. A printing device having a guide portion for controlling the width of the printer. 2. The printing apparatus according to claim 1, wherein the guide portion is provided with a pair of guide plates, and the pair of guide plates are provided so as to be close to each other. 3. The printing apparatus according to claim 1, wherein the guide portion is provided on the downstream side in the transport direction after the sheet comes into contact with the protective plate.