JPS6353081A - Paper guide device for printer - Google Patents

Abstract

PURPOSE:To enable slip form printing paper to be smoothly supplied irrespective of the thickness thereof, by providing a slant paper-feeding passage between a paper-supplying part and a paper-discharging part, and disposing a supply guide plate for guiding the supply of the slip form printing paper so that it can be moved in the manner of changing the angle thereof. CONSTITUTION:A paper-supplying part 5 is provided with a wall 5a substantially flush with a slant paper-feeding passage 18 formed by a platen 2 and feeding rollers 3, and a supply guide plate 10 is disposed on the upper side of a pin tractor 9. The guide plate 10 is so fitted that it can be turned at a base end thereof close to an upper part of the wall 5a, and can be selectively disposed in a horizontal position and a slant position. In the case of printing on thin slip form printing paper P2, since the supply guide plate 10 disposed in the slant position is extended slantly upward from the paper-feeding passage 18, the printing paper P2 can be smoothly supplied one by one to a printing position in an inserting manner along the slanted upper surface of the guide plate 10.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a printer that prints on printing paper on a platen using a print head.

(Prior art and problems to be solved by the invention) In conventional printers, an operator stands in front of the platen, that is, on the side where the print head is located, and prints a single sheet to the rear of the platen. In order to feed paper, it is easier to carry out the feeding operation if the printing paper is placed in a substantially upright position at the feeding position. However, in the case of thick (small) sheets like postcards, they are inherently small and difficult to handle, so feeding them in an upright position does not make the work easier. If the postcards are fed and transferred from the beginning, there is a problem in that the postcards become curved.

In other words, in a normal printer, printing paper is ejected upward from the paper supply section to the paper ejection section on the opposite side, and when the printing paper is upright in the paper supply section, it is ejected upward from the paper supply section. It orbits in a curved state over a wide angle.

SUMMARY OF THE INVENTION An object of the present invention is to provide a printer that can smoothly supply single print sheets without any problems, regardless of their thickness.

Structure of the Invention (Means for Solving Problems) The present invention has been made to achieve the above object, and includes a paper supply section and a paper discharge section provided on both front and rear sides of the platen. and the paper ejection section, forming an oblique paper transport path with the paper ejection section side facing upward;
In the paper supply section, a supply guide plate for guiding the supply of cut sheets of printing paper is movably arranged so as to change the angle in at least two planes with respect to the paper transport path.

(Function) Therefore, in the printer of the present invention, when printing on thick single-sheet printing paper such as postcards, the supply guide plate is placed at a position almost along the paper transport path, and the curved shape It is possible to feed thick single-cut printing paper without causing curling, and when printing on ordinary thin single-cut printing paper, the supply guide plate is arranged in an inclined state, and the inclination Thin cut-sheet printing paper can be smoothly fed along the upper surface.

(Embodiment) Hereinafter, an embodiment of a printer embodying the present invention will be described in detail with reference to the drawings.

As shown in FIG. 2, there is a platen 2 inside the printer body 1.
are arranged, and a pair of paper feed rollers 3 are provided before and after the rollers. A print head 4 is disposed below the platen 2 and facing upwardly, and as the print head 4 is moved laterally along the print lines of the platen 2, printing is performed on the print paper from the bottom side. A paper supply section 5 and a paper discharge section 6 located above the paper supply section 5 are provided on both front and rear sides of the printing position at the bottom of the platen 2 .

As shown in FIGS. 1 and 2, a pair of legs 7 are provided protruding from both sides of the lower part of the printer main body 1, and a storage space 8 is provided between the legs 7 for the continuous printing paper P1. It is being The paper supply section 5 is provided with a wall 5a that is substantially flush with the oblique paper transport path 18 formed by the platen 2 and the feed roller 3, and a bin tractor 9 is installed in a recess in the front and rear intermediate surfaces of the wall 5a. is provided. The bin tractor 9 has pins that fit into feed holes on both sides of the continuous printing paper P1, and feeds and transports the continuous printing paper P1 in the storage space 8 to the printing position below the platen 2. A supply guide plate 10 is disposed in the paper supply section 5 above the bin tractor 9, and along the upper surface of the supply guide plate 10, single sheets of printing paper P2 can be inserted one by one into the printing position.

On the side of the paper ejection section 6, a see-through window 11 made of a transparent plate is provided on the printer main body 1, and a paper ejection groove 12 extending in the horizontal direction is formed in a part of the see-through window 11. A stacker 13 is attached to the outer side of the printer main body 1. A hole 1a is provided on the upper surface of the printer main body 1 at the lower end of the transparent window 11.
1a is formed, and the stacker 13 is held by fitting a protrusion 13a protruding from its base end into the hole 1a. The upper surface of the stacker 13 is located substantially parallel to the extension line of the paper transport path 18, and can hold the printed single sheets P2 discharged from the paper ejection groove 12 in a sequentially stacked manner upward. can.

Further, in this embodiment, the printer body 1 includes a pair of walls 1b that stand up at the rear part, that is, on both left and right sides of the paper supply section 5;
lb, and a space open to the rear and upward is formed between both walls 1b. The supply guide plate 10 is located in this space, and is rotatably attached to the walls 1b, 1b by a support shaft 14 at its base end close to the upper part of the wall 5a, and
By selectively fitting the engaging protrusions 15 provided on both sides into the engaging recesses 16 and 17 provided on the two upper and lower surfaces of the walls 1b and lb, horizontal It can be selectively arranged in the position and in the inclined position shown by the dashed line. When the supply guide plate 10 is rotated to a horizontal position, its upper surface forms an obtuse angle with respect to the oblique paper transport path 18 and extends substantially horizontally, and the supply guides Fj, 1
0 is rotated to the inclined position 1, its upper surface extends obliquely upward, substantially perpendicular to the paper transport path 18.

The printer main body 1 is provided with a manual switch panel lc on the upper surface at one longitudinal end of the platen 2 for controlling the operation of the printer.

Therefore, in this printer, when printing over a plurality of pages using, for example, ordinary thin cut printing paper P2, the supply guide plate 1° is rotated to the inclined position shown by the chain line in FIG. In this state, as shown in FIG. 3, an operator stands on the printer body 1 parallel to the platen 2 and on the side of the stacker 13, and drops the print sheets P2 one by one along the top surface of the supply guide plate 10. When the printing paper P2 is fed as shown in FIG.
The direction is changed at the same time, and printing is performed on the lower surface side of the cut printing paper P2 by the operation of the print head 4. Then, the printed printing paper P2 is discharged one by one from the paper discharge groove 12 on the paper discharge section 6 side, and is sequentially stacked upward on the stacker 13 with the printed side facing down. Therefore, there is no need to rearrange the page ring of the printing paper P2 in reverse after printing is completed, and processing such as stitching can be performed in the same state.

In addition, when printing on this thin cut printing paper P2, since the inclined supply guide plate 10 extends obliquely upward from the paper transport path 18, the printing paper P is
2 can be smoothly fed and inserted into the printing position one by one.

Furthermore, in this printer, when printing on a thick cut printing paper P2 such as a postcard, the fourth... As shown in Fig. 5, change the installation direction of the printer, have the operator stand at the end of the printer body 1 on the switch panel 1c side, or on the side of the supply guide plate 10, and simply move the printer along the top surface of the supply guide plate 10. When the printing paper P2 is supplied, the printing paper P2 is transported almost linearly from the supply guide Fi10 through the paper supply section 5 and the printing position at the bottom of the platen 2 to the paper discharge section 6, so that the printing paper P2 is curved. There is no possibility that the product will develop a bad habit.

In any of the above printer installation directions, the switch panel lc is located on the top surface of the printer main body 1, making it easy to operate.

Effects of the Invention As detailed above, the present invention provides a method for printing on thick single-sheet printing paper such as postcards, with the supply guide plate placed at a position forming a gentle angle with respect to the paper transport path. , it is possible to feed thick single-cut printing paper without causing curved curls, etc., and when printing on ordinary thin single-cut printing paper, the supply guide plate can be placed in an inclined position. This has the excellent effect of being able to smoothly feed thin cut printing paper along its slanted upper surface.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of a printer embodying the present invention, FIG. 2 is a vertical sectional view of the printer, and 3-5
Each figure is a plan view showing a state in which the printer is installed in a different direction. 2... Platen, 4... Print head, 5... Paper supply section, 6... Paper discharge section, 1o... Supply guide plate,
18...Paper transport path, P2...Single printing paper.

Claims (1)

[Claims] 1. A print head (4) is arranged facing the platen (2),
A printer configured to print on printing paper (P2) on a platen (2), with a paper supply section (5) and a paper ejection section (6) provided on both front and rear sides of the platen (2) to supply the paper. A diagonal paper transport path (18) is formed between the supply section (5) and the paper ejection section (6), with the paper ejection section (6) facing upward. A supply guide plate (10) for guiding the supply of vote printing paper (P2) is connected to the paper transport path (18).
1.) A paper guide device for a printer, characterized in that the paper guide device is movably arranged so as to change angles to at least two positions with respect to the paper guide device.