JP3011598B2 - Facsimile machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus, and more particularly to a facsimile apparatus which can use a large-diameter recording paper roll which cannot be stored in a recording paper storage chamber in a main body case.

[0002]

2. Description of the Related Art Generally, a recording paper storage chamber for storing a recording paper roll is provided in a main body case of a facsimile apparatus. A plurality of types of recording paper rolls having different diameters are commercially available. In recent years, small facsimile machines which are commercially available in large quantities are provided with a recording paper storage chamber small enough to store a small diameter recording paper roll.

In a small facsimile apparatus, this small recording paper storage chamber is disposed on one side of a main body case, and an opening for exchanging recording paper rolls is formed on one side surface of the main body case.
A side cover for opening and closing the opening is pivotally supported at the lower edge of the opening.

In a small facsimile machine, the side cover is connected to a thermal head via an interlocking mechanism so that the recording paper pulled out from the recording paper roll can be easily loaded manually, and the side cover is closed. Sometimes, the thermal head approaches the platen roller to a printable distance, and when the side cover is opened, the thermal head is separated from the platen roller by a predetermined distance that is longer than the printable distance.

[0005]

By the way, the receiving frequency and the receiving time are not determined by the size of the facsimile apparatus, and a small-diameter recording paper which is expensive in cost for a facsimile receiver having a large receiving frequency and receiving time. It is preferable to use a large-diameter recording paper roll and reduce the frequency of replacement of the recording paper roll, rather than frequently replacing the roll.

In a small facsimile apparatus, a space large enough to allow a large-diameter recording paper roll to be placed above the opened side cover can be obtained. However, when the side cover is opened, the thermal head separates from the platen roller. The recording paper cannot be printed on the recording paper because of the position of the recording paper, so that a large-diameter recording paper roll that cannot be stored in the recording paper storage chamber cannot be used.

The present invention has been made in consideration of the above circumstances, and has as its object to provide a facsimile apparatus that can use a large-diameter recording paper roll that cannot be stored in a recording paper storage chamber in a main body case. .

[0008]

According to the present invention, a recording paper storage chamber is provided on one side of a main body case, and an opening for inserting a recording paper roll into the recording paper storage chamber is formed in the main body case. In a facsimile apparatus, a side cover for opening and closing the opening is pivotally supported at a lower edge of the opening, and an interlocking mechanism for moving the thermal head toward and away from the platen roller in conjunction with the cover. The following measures have been taken to achieve this.

That is, in the first facsimile apparatus of the present invention, the opened side cover is also used as a table on which a recording paper roll having a larger diameter than a recording paper roll stored in a recording paper storage chamber is placed. A recording paper cover connected to the side cover is provided so as to cover the large-diameter recording paper roll placed on the side cover, and the recording paper cover is placed at a position covering the large-diameter recording paper roll on the side table. When the recording paper cover is positioned, the recording paper cover drives the interlocking mechanism to move the thermal head closer to the platen roller to a printable distance.

[0010] The second facsimile apparatus of the present invention comprises:
The side cover with the opening is also used as a table on which a recording paper roll having a larger diameter than the recording paper roll stored in the recording paper storage chamber is placed, and is configured to be able to expand and contract in the horizontal direction. By extending and contracting the side cover in the horizontal direction, the interlocking mechanism is driven to move the thermal head closer to the platen roller to a printable distance.

[0011]

According to the first facsimile apparatus of the present invention,
When the side cover is opened, first, as before,
The movement of the side cover is transmitted to the thermal head by the interlocking mechanism, and the thermal head is separated from the platen roller. After that, the large-diameter recording paper roll is placed on the side cover, and then the recording paper cover is attached to the side cover, and the recording paper cover is moved to a position covering the large-diameter recording paper. Since the interlocking mechanism is driven to bring the thermal head close to the platen roller to a printable distance, printing becomes possible.

In the second facsimile apparatus of the present invention, a large-diameter recording paper roller is placed on the opened side cover, and after the leading end of the recording paper is manually loaded, the side cover is moved horizontally. Then, in conjunction with this, the thermal head approaches the platen roller and printing becomes possible.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A facsimile apparatus according to one embodiment of the present invention will be described below with reference to the drawings. As shown in the longitudinal side view of FIG. 1, the facsimile apparatus according to one embodiment of the present invention is provided with a recording paper storage chamber 3 for storing a small-diameter recording paper roll 2 at a rear portion in a main body case 1. An opening 4 for inserting the small-diameter recording paper roll 2 is formed in the recording paper storage chamber 3 on the rear surface of the recording paper storage chamber 3.

The lower edge of the side cover 5 that opens and closes the opening 4 is pivotally supported on the lower edge of the opening 4 so as to be rotatable about a fulcrum shaft 6. In addition, this side cover 5
Is restricted to a substantially right angle between an upright closed position as shown by a one-dot chain line and an open position opened horizontally as shown by a solid line in FIG.

The recording paper P pulled out from the recording paper roll 2
Denotes a platen roller 7 disposed above the recording paper storage chamber 3
And is discharged along a front and upper side of the main body case 1 and discharged from a paper discharge port 8 opened at an upper rear portion of the main body case 1.

Above the platen roller 7, a thermal head 9 is provided so as to be able to approach and separate from the platen roller 7, and an interlocking mechanism 10 for transmitting the opening / closing operation of the side cover 5 to the thermal head 9 is provided.

The interlocking mechanism 10 includes a drive cam 11 and a switch cam 12 which rotate around a coaxial center with the platen roller 7.
And link mechanism 1 including three links 13a to 13c
And one end of each of the three links 13a to 13c is rotatably connected to each other by one intermediate connection pin 14, and the other end is connected to the drive cam 11 and the switch cam 12, the fulcrum shaft 6, or the side, respectively. The cover 5 is connected to a portion near the base end.

In the portion near the base end of the side cover 5,
An elongated hole 15 extending in the surface direction of the side cover 5 is formed,
Of the links 13a to 13c, the other end of the third link 13c, the other end of which is connected to a portion near the base end of the side cover 5, is slidably and rotatably inserted into the elongated hole 15. .

The drive cam 11 prints the thermal head 9 when the side cover 5 is raised vertically and the opening 4 is closed as shown by the dashed line in FIG. 1 or the vertical side view in FIG. The switch cam 12 is moved closer to the platen roller 7 as far as possible,
Is turned on.

As shown by the two-dot chain line in FIG. 1 and the vertical side view in FIG. 3, the side cover 5 is turned down horizontally to open the opening 4, and the recording paper cover 18 described later is moved to a predetermined position. The drive cam 11 separates the thermal head 9 from the platen roller 7 to a distance where printing cannot be performed, and the switch cam 12 operates the recording paper open / close switch 1.
6 is off.

As shown by the solid line in FIG. 1 or FIG. 3, the opened side cover 5 has a table on which a recording paper roll 17 having a larger diameter than the recording paper roll 2 stored in the recording paper storage chamber 3 is placed. The recording paper P unwound from the large-diameter recording paper roll 17 placed on the side cover 5
Is passed through the space between the platen roller 7 and the thermal head 9 via the lower side and the front side of the platen roller 7 by hand, for example, and is loaded so as to exit the paper discharge port 8.

When the side cover 5 is opened and the large-diameter recording paper roll 17 is used, as shown in FIG. A recording paper cover 18 is detachably connected to the side cover 5.

The connection structure between the side cover 5 and the recording paper cover 18 is not particularly limited as long as it is removably connected to each other, but here, pins 5a are provided on the left and right sides of the upper edge of the side cover 5. Hooks 18a protruding from each pin 5a are formed at the left and right ends of the rear lower edge of the recording paper cover 18.
Are rotatably engaged.

As shown by a solid line in FIG.
When the recording paper cover 8 is positioned to cover the recording paper roll 17, the lower edges 20 of the left and right side walls 19 of the recording paper cover 18 push down the intermediate connecting pin 14, whereby the link 13a
Is pulled down, the drive cam 11 rotates clockwise in the figure, and moves the thermal head 7 close to the platen roller 7 to a printable distance, whereby the recording paper pulled out from the large-diameter recording paper roll 17 Printing can be performed by the thermal head 7.

In another embodiment of the present invention shown in a vertical sectional side view of FIG. 4, a side end 21 in which a side cover 21 is pivotally supported at the rear lower part of the main body case 1 and a base end 22 2
2 and a front end portion 23 slidably connected to the side cover 21 in the surface direction. The side cover 21 is moved by moving the front end portion 23 with respect to the base end portion 22 with the side cover 21 opened. 21 can be expanded and contracted in the plane direction.

A long hole 24 extending in the surface direction of the side cover 21 is formed on both left and right side surfaces of the base end portion 22, and the other end of the third link 13 c of the link mechanism 13 is connected to the front end portion 2.
3 is rotatably inserted into the left and right sides, and is slidably and rotatably protruded into the elongated hole 24.

The other configuration is the same as that of the above-described embodiment, and a detailed description thereof will be omitted to avoid duplication.

When a small-diameter recording paper roll 2 is used,
As shown in FIG. 5, the side cover 21 is shortened. When the side cover 21 is closed, the drive cam 11 causes the thermal head 9 to approach the platen roller 7 to a printable distance. As shown in (1), the drive cam 11 separates the thermal head 9 from the platen roller 7 to a distance where printing is not possible.

In this state, the large-diameter recording paper roll 17 is placed on the side cover 21, and after loading the recording paper, the leading end 23 of the side cover 21 is pulled out rearward as shown by a solid line in FIG. When the side cover 21 is extended, the distal end portion 21 is pulled rearward at the other end of the third link 13c. As a result, the third link 13c pulls down the first link 13a, and the drive cam 11 and the switch cam 1
2 rotates clockwise to bring the thermal head 7 closer to the platen roller 7 from a position where printing is not possible to a distance where printing is possible, and a printable state is established.

[0030]

As described above, according to the first facsimile apparatus of the present invention, when the side cover is opened, a large-diameter recording paper roller is placed thereon, and the recording paper cover is set, the thermal head is set. Can print by approaching the platen roller, so it is possible to receive using a large-diameter recording paper roller that cannot be stored in the recording paper storage room of the main body case, and it is possible to reduce the frequency of user replacing the recording paper. .

According to the second facsimile apparatus of the present invention, by opening the side cover, placing a large-diameter recording paper roller on the side cover, and then expanding and contracting the side cover in the surface direction, the thermal head can be mounted on the platen. Since printing can be performed by approaching the rollers, recording can be performed using a large-diameter recording paper roller that cannot be stored in the recording paper storage chamber of the main body case, and the frequency of replacement of the recording paper by the user can be reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view when a large-diameter recording paper roll according to an embodiment of the present invention is used.

FIG. 2 is a longitudinal sectional side view when the side cover according to the embodiment of the present invention is closed.

FIG. 3 is a longitudinal sectional side view when a side cover according to an embodiment of the present invention is opened.

FIG. 4 is a longitudinal sectional side view when using a large-diameter recording paper roll according to another embodiment of the present invention.

FIG. 5 is a longitudinal sectional side view when a side cover according to another embodiment of the present invention is closed.

FIG. 6 is a longitudinal sectional side view when a side cover according to another embodiment of the present invention is opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body case 2 Small diameter recording paper roll 3 Recording paper storage room 4 Opening 5 Side cover 9 Thermal head 7 Platen roller 10 Interlocking mechanism 17 Large diameter recording paper roll 21 Side cover P Recording paper

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04N 1/00 108 B41J 15/04

Claims (2)

(57) [Claims] A recording paper storage chamber is provided on one side of the main body case, and an opening for inserting a recording paper roll into the recording paper storage chamber is formed in the main body case. In a facsimile apparatus having a side cover that opens and closes the opening pivotally and an interlocking mechanism that moves the thermal head toward and away from the platen roller in conjunction with the cover, the opened side cover is inserted into the recording paper storage chamber. Recording paper that is also used as a table on which a recording paper roll having a larger diameter than the recording paper roll to be stored is placed, and is connected to this side cover so as to cover the large-diameter recording paper roll placed on this side cover. A cover is provided, and when the recording paper cover is located at a position covering the large-diameter recording paper roll placed on the side cover, the recording paper cover drives an interlocking mechanism to heat the recording paper. Facsimile apparatus, characterized in that to approach the platen roller until printable distance de. 2. A recording paper storage chamber is provided on one side of the main body case, and an opening for inserting a recording paper roll into the recording paper storage chamber is formed in the main body case. A facsimile apparatus comprising: a side cover for opening and closing the opening; and an interlocking mechanism for moving the thermal head toward and away from the platen roller in conjunction with the cover. The table is also used as a table on which a recording paper roll having a larger diameter than the recording paper roll stored in the chamber is placed, and is configured to be able to expand and contract in the horizontal direction. A facsimile apparatus characterized in that an interlocking mechanism is driven to move the thermal head closer to a platen roller to a printable distance.