KR19980038701A - Home Position Restructuring Device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inkjet printer, and more particularly, a cap guide including a stopper 16 for a carriage to contact a wiper head 5 and a cap head 6. (Cap Guide) (4) is attached to the cap-head (6), the cap-head (6) for the smooth operation of the cap-head (Cap-Head) 6 and the holder cap ( 13), and a protrusion bar for operating along the Cam-Line of the home frame 2 on the front of the cap guide 4 on the left and right sides (17, 17). -1) By attaching the cap guide to the inside of the groove frame after attaching, it integrates the cap and wiper components independently configured in the prior art into one unit to reduce the cost and the number of parts and reduce the number of parts Reduction of friction noise due to the reduction and the use of single-stage cam line make the operation of the product smooth. Height has the effect.

Description

Apparatus for modifing a home position structure

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inkjet printer, and more particularly, to a structure of a home position composed of a wiper head (5) and a cap head (6). The present invention relates to an apparatus for changing a home position structure of an inkjet printer, which is integrated into one and achieves simplicity of operation.

As shown in FIG. 1, a general conventional inkjet printer is supported on the main frame 100 and guided by a belt pulley 101, and moves to the left and right by the belt pulley 101 and the carriage mechanism 102. , The home position unit 103 for wiping or sealing the head according to a cleaning signal of a certain period during printing, the carriage motor driving circuit 151 for controlling the operation of the carriage return driving motor, and the stepping motor mainly using paper It comprises a line feeder motor driving circuit 161 for feeding and discharging the.

The operation of the printer configured as described above will be described with reference to FIG. 2, which receives a signal transmitted from a computer (not shown) through a printer interface, and provides initial setting values required for the printer operation and values necessary for the system. A CPU 110 that reads, interprets, and executes a system program in the stored EPROM 11, and outputs a control signal according to the contents of the program; a ROM 112 in which a program necessary for control and various fonts are embedded; RAM 113, which is used to temporarily store data during system operation, and most logic circuits necessary for control of the CPU 110 are implemented by the ASIC 120, so that most of the periphery of the CPU 110 is maintained. Drive of the ink cartridge 131 according to an ASIC circuit section 120 which executes data transfer with the CPU 110 for the element of < RTI ID = 0.0 > and < / RTI > The head driver 130 for controlling, the head cartridge 131 for ejecting ink to form an image on the media, the head driver 130 for transferring the head cartridge 131 to left and right, and the main motor 141. Main motor driving circuit 140 for controlling the operation, carriage motor driving circuit 150 for controlling the operation of the carriage return driving motor 151, and a line feed motor for feeding and discharging paper using mainly the stepping motor And a line feed motor driving circuit 160 for controlling the driving of the 161.

In the conventional printer configured as described above, the print signal transmitted from the computer not shown through the printer interface is installed on the main frame by driving the respective motors 140, 150, 160, etc. according to the control signal of the CPU 110. As the carriage moves to the left and right, the ink head cartridge mounted on the carriage is also moved to the left and right at the same time, so that ink is sprayed to form a certain shape through the nozzle installed in the head and buried on the paper conveyed by the rotation of the platen. Printing will take place.

In this case, the home position 103 is sprayed with ink through the nozzle of the ink head to print, thereby wiping the nozzle of the head, and when not in operation, It is an essential device to always seal before and after printing so that the ink does not dry out.

3 is a structural diagram showing a home position structure for explaining such conventional prior art.

As shown, the home position structure has a tension spring 3 fastened to a home frame 2 assembled in the main frame 1 and a cap guide 4 on the other side. It is intended to be mounted on.

The cap guide 4 is provided with a wiper head 5 and a cap head 6, and the cap guide 4 has a groove frame. After assembling to the (Home Frame) 2, the tension spring 3, which is an elastic member, is fitted.

The cap guide 4 mounted on the home frame 2 moves left and right along the cam-line 7 of the home frame 2. The stopper (10) surface of the cap guide (4) hits the right rib (9) surface of the carriage (8) at the top and is moved to the right, thereby causing a cam line (Cam- Positioned high on the line 7, the cap head 6 is operated to protect the surface of the nozzle 13 of the head 11 in a vacuum state.

In addition, when the carrier 8 on which the ink head 11 is mounted gradually moves away from the home position part, the head is moved by the elasticity of the wiper head 5 which is locked. The surface of the nozzle 13 is cleaned, and when the carrier 8 touches and pushes the lever wiper, the wiper falls along the cam line.

Therefore, when the carriage 8 is moved to the left by a lever wiper, the lever wiper serves to return to the original position by the elasticity of the tension spring 3.

However, in the above-described home position structure, the carriage 8 and the cap guide (Cap) are moved when the carriage 8 strikes the cap guide 4 along the shaft 12 to the right. When the guide 4 hits, a noise is generated, which is caused by a relatively considerable noise because the right rib 9 is a strike sound generated by hitting the stopper 10.

In addition, as shown, the home position of the conventional inkjet printer (Home Position) is divided into a wiper head (5) and a cap-head (Cap-Head) (6) portion, each made of a single In addition, the configuration is complicated by the increase in the number of parts. Also, since the operation is complex and the simplicity is reduced, and the two-cam cam line is used, the operation is smooth. There is a problem falling.

Therefore, in the present invention, the home position part is divided into a wiper head 5 part and a cap head 6 part, and thus, the complexity of the structure and the number of parts generated are independent. The structure of the wiper head (5) and the cap-head (6) is changed to one unit to solve the cost increase due to the increase of friction and friction noise caused by the linking operation of parts. To protect and sell the nozzle surface and the hole of the ink head 11 and wipe the nozzle surface, thereby simplifying the configuration, reducing the cost, reducing the friction noise, and providing a two-stage cam-line structure. The purpose is to change the structure to Cam-Line to achieve smooth operation.

1 is a front view of a printer generally used in the prior art,

2 is an internal operation diagram of a printer apparatus generally used in the prior art,

3 is a cross-sectional view showing the structure of the home position portion of the printer device,

4 is a perspective view showing a structure of a home position unit according to the present invention;

(A) is a structure in which the wiper head head portion and the cap head portion are structured in one piece,

(B) shows the structure of the lever wiper for the operation of the home position,

(C) shows the structure of the groove frame portion,

5 is a plan view showing a home position portion according to the present invention.

* Explanation of symbols for the main parts of the drawings

1: main frame 2: home frame

3: tension spring 4: cap guide

5: wiper head 6: cap head

7: cam line 8: carriage

10: stopper 11: head cartridge

14: spring cap 15: holder cap

17: protrusion bar 18: lever wiper

19: spring

Accordingly, FIG. 4 illustrates a structure in which the wiper head portion 5 and the cap position portion 6, which are separated from each other, are integrated into one unit. The device has been changed and configured.

4A is a device in which the structure of the wiper head 5 and the cap head 6 is changed into one unit as shown.

The wiper head (5) and the cap-head (6) are installed in a cap guide (4) consisting of a stopper (16) for the carriage to contact the cap, and the cap The cap-head part 6 includes a spring cap 14 and a holder cap 13 for smooth operation of the cap-head 6, and a cap guide 4. ) On the front side, protruding rods for operating along the Cam-Line of the home frame 2 are attached to the left and right sides (17, 17-1).

FIG. 4B is a projection bar 17 attached to the left and right sides of the integrated device of the wiper head 5 and the cap head 6 of FIG. 4A. The structure of the lever wiper 18 for operating using 17-1) is shown.

4 (C) shows the structure of a home frame 2 according to the present invention.

As shown in the drawing, a cam line is made in one stage on the front of the home frame 2, and the wiper head 5 and the cap head 5 are formed. The structure of the head 6 is changed to a single unit, and the home position is smoothly operated.

5 is a plan view showing a home position part according to the present invention.

The operation of the home position unit changed to the above structure will be described with reference to FIGS. 4 to 5 as follows.

The wiper head (5) and the cap-head (6) are installed in a cap guide (4) consisting of a stopper (16) for the carriage to contact the cap, and the cap The cap-head 6 part includes a spring cap 14 and a holder cap 13 for smooth operation of the cap-head 6.

In addition, the front of the cap guide (4) has left and right protrusions (17, 17-) for operating along the cam line (7) of the home frame (2). After attaching 1), the lever wiper 18 is inserted into the protruding rod 17 of the cap guide 4.

The cap guide 4 assembled as described above is attached to the inside of the groove frame 2.

The tension spring 19 is hung on a home frame 2 assembled to a main frame, not shown, and the other group is a lever wiper attached to a cap guide 4. When attached to the lever of 18), the cap guide (4) is moved left and right along the cam line (7) of the home frame (Home Frame) (2).

When the carriage 8 on which the ink head 11 is mounted moves to the right side of the home position portion, the right rib of the carriage pushes the stopper 16 of the cap guide 4.

When the right rib of the carriage pushes the stopper 16, the lever wiper 18 rotates counterclockwise so that the cap head 6 is raised, and the lift The cap-head 6 is provided to protect the nozzle face of the head mounted on the carriage in a vacuum state, and the lever wiper 18 is locked.

In addition, when the carriage moves to the left along the Cam-Line 7 of the home frame 2 for printing in accordance with a user's print signal, the lever wiper which is locked. (18) is released by the action of the tension spring 19 to raise the wiper head (5) to clean the nozzle surface of the ink head.

Therefore, the effect according to the present invention is to integrate the cap component and the wiper component independently configured conventionally in one unit, the cost reduction and the friction noise reduction according to the reduction of the number of parts and the number of parts, and also, the first stage By using the cam line, smooth operation of the product has the effect of increasing the reliability of the product.

Claims (4)

And a wiper head, a protruding stopper-shaped cap guide to which the cap head is mounted, a lever wiper for operating the cap guide, and a groove frame. 2. The apparatus of claim 1, wherein the cap head includes a spring cap and a holder cap for smooth operation. 2. The apparatus of claim 1, wherein the lever wiper has a seesaw shape. 2. The apparatus of claim 1, wherein the groove frame comprises a single cap line.