JPH0436623B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a sent marking device for a document such as a facsimile device.

2. Description of the Related Art As shown in FIG. 6, in a conventional sent marking device, a document 1 that has passed a reading point 3a of a photoelectric conversion unit 3 is fed out by a paper discharge roller 5, and the end of the document 1 reaches near point P. When the stamp 2 is
5 presses the surface of the document and stamps a mark such as "○". The stamp 25 includes a printed body 25a made of a sponge-like material, an ink absorbing body 25b, and a case 25.
c, and it is possible to supply ink from the supply hole 25d.

Problems to be Solved by the Invention However, the effective number of times the above-mentioned stamps are printed from new until the characters become faint is about several thousand times, and the lifespan of modern high-speed facsimile machines is said to be relatively short. It's getting old,
Longer life was desired. When replenishing ink, it takes time for the ink to spread to the printing body 25a, and it is troublesome to adjust the supply amount, so stamps are generally replaced, but this requires a device configuration that allows for easy replacement work. also existed. In this case, the need for easy replacement work will decrease if the lifespan of the stamp is extended, but in addition, there are many cases where users request stamps in different colors, so it is easy to replace them. The need for work still exists.

Further, in the case of recent facsimile machines that are required to be more compact, the space occupied by the stamp device including the platen 26 is now considered to be a non-negligible amount.

The present invention solves the above problems and provides a sent marking device that has a long life, saves space, and is easy to replace.

Means for Solving the Problems In order to solve the above-mentioned problems, the sent marking device of the present invention uses an ink roller with a large ink storage capacity instead of the ○ mark stamp, and an ink roller that is in contact with the paper ejection roller. A stamping arm is provided coaxially with a pinch roller having a slightly larger diameter, and has a stamping portion formed in the shape of a bar or an interrupted bar in the space between the shafts of the ink roller and the discharge roller. The pinch roller is placed on the paper ejecting roller by its own weight including the ink roller and the shaft, and the holding portion of the shaft does not restrain the shaft from falling in a certain direction.

Effects According to the present invention, with the above configuration, the ink roller rotates as the pinch roller rotates as the paper ejection roller rotates, and therefore the ink roller is used for marking all over the entire circumference. The large amount of ink absorbed by the roller and the small area of the marking mark reduce ink consumption, making it possible to perform stable marking over a long period of time. Since this can be done by stamping means, the space occupied by conventional stamping devices can be saved, and if the ink roller and pinch roller have a configuration in which the holding part of the shaft can be moved upward, the shaft can be held easily. The ink roller can be easily replaced since it is freed from the constraints imposed by the parts.

Embodiment FIG. 1 shows a schematic configuration of a facsimile apparatus to which an embodiment of the present invention is applied, in which 1 is a sending document, 2 is an automatic paper feeder, 3 is a photoelectric conversion unit, and 4 is a document for subscribing a document. This is a feed roller for feeding at a scanning speed. 2 and 3 show the configuration of the main parts, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a sectional view taken along the line BB in FIG. 1. (Please refer to FIG. 1 below) Reference numeral 5 indicates a paper ejecting roller for discharging the original to the outside of the machine, and 6 indicates an ink roller in which oil-based ink is absorbed into a porous sintered plastic material by vacuum suction. Initially, the ink roller 6 has a nearly saturated ink storage capacity, but unless a certain amount of pressure or sliding force is applied between the ink roller 6 and the original, ink cannot be attached to the original. It has the characteristic of not having 7 is paper ejection roller 5
It is a pinch roller for the ink roller 6.
It has a slightly larger diameter and is rotatably passed through a shaft 8 along with the ink roller 6 on both sides of the ink roller 6. Both sides of the shaft 8 are inserted into grooves 9a having a width slightly larger than the diameter of the shaft 8 provided in the bracket 9 (FIG. 3). Therefore, the pinch roller 7 contacts the paper ejection roller in such a manner that the shaft 8 is guided by the groove 9a due to the weight including the ink roller 6 and the shaft 8. Reference numeral 10 denotes a transmitting section chassis, which can be rotated counterclockwise about the support section 11 together with the bracket 9, the photoelectric conversion unit 3, and the cover. Reference numeral 13 denotes a stamping arm for pressing the original 1 against the ink roller 6 by means of a stamping section 13a, and is fixed to the shaft 14. Stamp part 1
3a is formed in the shape of a rod line or an interrupted rod line along the axial direction of the ink roller 6. The shaft 14 is rotatably supported by a bracket 15a and a bracket 16 provided on a guide member 15 on the lower surface of the document, and a lever 18 connected to a solenoid 17 is fixed to one end. (Figure 4 is a view in the direction of arrow C in Figure 3,
(See also FIG. 4 below) The spring 19 is a torsion coil spring that applies a counterclockwise rotational force to the marking arm 13 via the lever 18 and the shaft 14.
The stamping arm 13 is maintained at the standby position by bringing the end 13b of the stamping arm 13 into contact with the guide member 15. The toothed roller 20 is used to press the trailing edge of the document with its teeth to ensure that the document is ejected outside the machine, and is fixed to the shaft 21 together with the paper ejection roller 5. The shaft 21 is rotatably supported by a bearing 22 fixed to the bracket 16 and chassis 23, and receives rotation from a pulley 24 fixed to the end of the shaft.

Next, the operation will be explained.

In FIG. 1, a document 1 is separated and fed one by one by an automatic paper feeder 2 in response to a transmission command, passes through a pressure contact portion between a photoelectric converter 3 and a feed roller 4, and then passes through a paper ejection roller 5 and a pinch roller. At this time, the document 1 is slightly separated from the ink roller 6 due to the difference in diameter between the ink roller 6 and the pinch roller 7, and as the pinch roller 7 rotates, the document 1 is fed out of the machine. Since the roller 6 rotates, no pressing force or sliding force is exerted between the roller 6 and the ink roller 6, so that ink does not adhere to the ink roller 6.

A control circuit (not shown) causes the end of the document 1 to be set at P.
When the point is reached, a short-time energization command is issued to the solenoid 17 to operate the marking arm, and the stamping section 13a presses the document 1 against the ink roller 6, and the top surface of the document 1 is pressed according to the shape of the stamping section 13a. A mark is made. A facsimile operator determines whether a document has been sent or not based on the presence or absence of this mark on the document.

FIG. 5 shows the transmission section chassis 10 in an open state with the support section 11 as a fulcrum. Since the shaft 8 of the ink roller 6 and the pinch roller 7 is not restrained in the falling direction by the bracket 9, when the transmitter chassis 10 is opened, both ends of the shaft 8 are disengaged from the groove 9a, and the paper ejection roller 5 and guide member 15 are They are placed in a straddling position, and can therefore be easily taken out in the direction of arrow D. If the transmitter chassis 10 is closed as it is, the shaft 8 is guided by the groove 9 and returns to its original position together with the ink roller 6 and pinch roller 7. Therefore, the ink roller 6 can be easily replaced.

Effects of the Invention As described above, the present invention uses an ink roller with a large ink storage capacity and a marking means with a small amount of ink consumption, thereby making it possible to greatly extend the effective lifespan of marks (incidentally, (According to actual results, 300,000 to 400,000 times) In addition, the paper ejection pinch roller and ink roller are coaxial, and a stamping section is provided between the paper ejection roller axis and the ink roller, so that conventional stamping devices can The occupied space can be saved, and furthermore, since the holding portion of the ink roller shaft is structured so as not to restrict the shaft from falling in a certain direction, the ink roller can be replaced extremely easily.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing a schematic configuration of a facsimile machine to which a transmitted marking device according to an embodiment of the present invention is applied, and FIGS. 2, 3, and 4 show the configuration of main parts. Figure 2 is a sectional view taken along line A-A in Figure 1.
Fig. 3 is a sectional view taken along line B-B in Fig. 1, Fig. 4 is a view taken along arrow C in Fig. 3, Fig. 5 is an explanatory diagram of the operation related to replacing the ink roller, and Fig. 6 is a schematic configuration diagram of a conventional example. It is. 1... Original, 5... Paper ejection roller, 6... Ink roller, 7... Pinch roller, 8... Shaft, 9...
Bracket, 9a... Groove, 13... Stamping arm,
13a... Stamp section.

Claims (1)

[Scope of Claims] 1. An ink roller formed by storing ink in a porous sintered material, and pinch rollers having a slightly larger diameter than the ink roller provided coaxially with the ink roller and on both sides of the ink roller. a paper ejecting roller that is in contact with the pinch roller; a stamping arm having a stamping section located between the ink roller and the shaft of the paper ejecting roller; and a document fed out by the paper ejecting roller and the pinch roller. a marking arm driving means for driving the marking arm so as to bring the marking arm into pressure contact with the ink roller at a desired time. 2. The pinch roller contacts the paper ejecting roller by its own weight including its shaft and the ink roller, and the shafts of the pinch roller and the ink roller are in a falling direction guided by the holding part. The transmitted marking device according to claim 1, characterized in that it is not constrained.