JPS5938779Y2 - Original reading device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improved marking device that is pressed on a document reading device of a facsimile machine or the like and stamps a mark on the reader document.

Conventionally, this type of marking device has been used, for example, in
As described in Japanese Utility Model Publication No. 40099 and Japanese Utility Model Application Publication No. 52-1018, since a stamp is provided in the document feed roller, more marks than necessary are left on the document each time this roller rotates. This method has disadvantages such as severe ink contamination of the document, or if the stamp is placed at either the left or right edge of the document, it cannot be applied to a document with a small width.

In order to eliminate the drawbacks of the conventional example, the present invention temporarily stops the document transport at a specific position on the document transport path, and marks only one spot on the reading surface of the temporarily stopped document. The present invention provides a document reading device equipped with a marking device that uses ink that discolors over time due to light, temperature, moisture, etc. as marking ink.

Hereinafter, embodiments will be described in detail with reference to the drawings.

The figure shows one embodiment of the present invention, in which 1 is a document placement table, 2 is a separation roller, and 3 is a one-way clutch connected to a drive motor (not shown), which causes the separation roller 2 to rotate.

4 is a rectangular shaft that is the center of rotation, and 5 is a back plate to which a brake plate 6 is attached.

The brake plate 6 is made of chloroprene rubber or urethane rubber, and has a coefficient of friction smaller than that of the separation roller 2.

Reference numeral 7 denotes a guide plate, which is made of a thin metal sheet or mylar paper, has a button, and is attached to the brake plate 6.

Then, the original can be easily inserted between the brake plate 6 and the separation roller 2.

8 is a spring, 9 and 10 are paper guides, 11
and 13 are feed rollers, which are rotated by a step motor (not shown).

Numerals 12 and 14 are driven rollers, 15 is a plunger solenoid, 16 is a compression spring, and 17 is a stamp that is fixed to the tip of the plunger to enable continuous stamping.

18 is a stacker, 19 is a document, 20 is a reader, and 21 is a detector for detecting the leading edge and trailing edge of the document.

Next, the operation of this embodiment will be explained.

When a document is placed with its reading side facing down on the document table 1 and a start button (not shown) is pressed, the drive motor and step motor rotate, and the separation roller 2 rotates.

The separation roller 2 and the brake plate 6 work together to feed the lowest original document to the reading section.

When the leading edge of the document caught between the feed roller 11 and the driven roller 12 is detected by the detector 21, the drive motor and the step motor are stopped.

In the case of a facsimile machine, the step motor starts rotating in response to a reception ready signal, and the reader 20 starts reading.

At this time, the drive motor does not rotate, so the separation roller follows the movement of the document.

Next, when the reading progresses and the rear end of the document is detected by the detector 21, a control section (not shown) and a timer that receive the reading end signal temporarily stop the rotation of the step motor, for example, from 0.5 seconds to 1 minute. It stops for about a second, and the document transport stops.

At the same time, the solenoid 15 is energized, and the stamp 17 stamps the document reading surface.

Furthermore, the drive motor resumes rotation in response to the reading end signal and feeds the next document.

After a temporary stop, the step motor restarts its rotation, sends the stamped original 19 to the stacker 18, and causes the next original to be caught between the feed roller 11 and the driven roller 12 and separated.

Thereafter, the above operations are repeated to perform reading and stamping.

The present invention constitutes a reader marking device like the one above, and uses an ink that economically discolors the stamped mark and makes it invisible due to light, temperature, moisture, etc. It is.

In this embodiment configured as described above, only one mark can be placed at a specific location on a document, and since the document is temporarily stopped during marking, marking defects will not occur.

Since the next document is fed during the folding and time stops, the transmission time does not become long.

Furthermore, since the present invention uses ink that later discolors the mark over time due to light, temperature, moisture, etc., there is an advantage that the document naturally returns to its original state.

That is, since it is sufficient for the operator to be able to distinguish between marked and unmarked items, and between normally sent items and double-fed items, it is preferable to return to the original state after the time required for making the distinction has elapsed.

If you want to erase the mark in a short time, as in the case of re-transmission, you can leave the document in the required atmosphere and forcibly bleach it.

In this embodiment, the document is transported in a vertical direction, but it may be transported in a horizontal or diagonal direction.

The position of the stamp may be in front of the feed roller 13.

Of course, the present invention can also be applied to copying machines.

As explained above, according to this idea, contamination of the document by ink can be minimized by temporarily stopping the document being transported and marking only one place, and further,
Since the mark is economically destroyed and destroyed, it can be returned to its original state, and the manuscript can be reused without any hindrance.

[Brief explanation of the drawing]

The figure is a configuration diagram of one embodiment of the present invention. 1... Document placement table, 2... Separation roller, IL13.
...Feed roller, 12, 14...Followed roller, 17 Stamp, 18...Stacker, 20...Reader, 2
21...Detector.

Claims (2)

[Scope of utility model registration request] (1) In a document reading device equipped with an automatic document feeder, the means for temporarily stopping the document transfer and the reading surface of the temporarily stopped document are decolored over time due to light, temperature, moisture, etc. 1. A document reading device comprising a stamp mechanism for stamping a reader mark with ink. (2) The document transport is temporarily stopped by a stripping end signal from a detector that detects the position of the document, and at the same time, the automatic document feeder is activated by this reading end signal to feed the next document. A document reading device according to claim (1) of the utility model registration claim, characterized in that: