JPH0458747B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a marking device for a facsimile machine, a copying machine, etc.

Prior Art In general, facsimile transmission/reading devices and copying machine automatic document feeders can operate without an operator, so it is often necessary to clearly distinguish sent or copied documents from unsent documents. . Therefore, a stamp device for stamping a predetermined mark such as "Done" only on transmitted originals or copied originals is provided in the original transport path. However, in the case of such a stamp method, since the stamp surface of the stamp is always open, the impregnated ink tends to dry out. As a result, especially when the stamp is used intermittently or not used for a long period of time, as in the case of facsimile, the stamp surface dries out, making it impossible to stamp properly. On the other hand, if there is too much ink, it may cause ink bleeding or dripping.
It can also stain the manuscript. Furthermore, in order to change the predetermined mark to be affixed, the stamp must be replaced each time, which is troublesome. Even though this method uses an elastic carrier to improve the contact of the printed surface with the document, as shown in Japanese Utility Model Application Publication No. 57-4856, it is still a stamp method and has the above-mentioned problems. remains.

Purpose The present invention has been made in view of the above points, and an object of the present invention is to provide a marking device that can always record proper predetermined marks without problems such as ink drying in the stamp method.

Configuration An embodiment of the present invention will be described based on the drawings.
This embodiment is applied to a facsimile transmission/reading device. First, a document 1 with the document surface facing downward is fed from the left side by an automatic document feeder, etc., and then moved further to the right side by a driven roller 2 and a tension roller 3. Sent. Therefore, when the leading edge of the original document 1 is detected by the sensor 4, the leading edge of the original document 1 is guided by the upper guide plate 5 and the lower guide plate 6 and sent to the reading section, and reading is started. That is, the surface of the document is exposed to lamp 7.
The reflected light is imaged on a CCD 10 via a mirror 8 and a lens 9 and read. After reading one line, the document 1 is sequentially sent to the right side while being read at the required sub-scanning line density, and the drive roller 11 and tension roller 12 contribute to this feeding from the middle. In this way, the document transport path 1
3 is set.

Here, the driving roller 11 and the driven roller 2 are supported at both ends by side plates, and are connected to a step motor via a belt and a pulley to rotate. Further, the tension rollers 3 and 12 are held by a leaf spring or the like having one end fixed on the upper guide plate 5.
It is pressurized on the side and is set to rotate as a result.

Therefore, the tension roller facing the drive roller 11 located at the center is omitted, and the thermal transfer recording means 14 is provided using this portion and the upper guide plate 5. First, the upper guide plate 15
A lever 16 is rotatably held by a fulcrum shaft 17 on a bracket 15 fixed to the top by welding or the like. This lever 16 has a thermal head 18 mounted on a screw 1 opposite to the drive roller 11 in the center.
It is fixed by 9. In addition, a winding shaft (winding means) 20 and a shaft 21 are rotatably held on the lever 16 and are positioned before and after the thermal head 18, and a thermal transfer tape 22 is attached to both shafts 20 and 21 so as to attach the thermal transfer tape 22 to the lower end of the thermal head 18. It is attached so that it passes through. Here, the winding shaft 20 is elongated, and a gear 25 that can mesh with a gear 24 fixed on the shaft 23 of the drive roller 11 is fixed thereto. These gears 24 and 25 constitute a coupling means. Further, a solenoid (driving means) 26 is connected to the lever 16 by a pin 27, which attracts the solenoid by energizing it. 28 is a compression spring.

In such a configuration, typically solenoid 2
6 is not energized, the lever 16 is pushed by the compression spring 28 and rotates counterclockwise to come into contact with the stopper 15a of the bracket 15, and the thermal head 18 is moved together with the thermal transfer tape 22 as shown in FIG. It is in a state away from the drive roller 11. Further, the gear 25 is also separated from the gear 24. In this state, the conveyance reading operation as described above is started. Therefore, there is no conveyance load due to the thermal head 18 contacting the drive roller 11, and the reading conveyance speed is not adversely affected.

When the end of the document 1 has been read, the solenoid 26 is energized. As a result, lever 1
6 is attracted and rotates clockwise around the fulcrum shaft 17, and the thermal head 18 transfers the document 1 and the drive roller 1 via the thermal transfer tape 22 as shown in FIG.
1. Therefore, the thermal head 18
A recording signal is applied to the document 1, and a predetermined mark such as "Done" is thermally transferred and recorded on the rear end of the document 1 in the conveyed state. At this time, it is necessary to wind up the thermal transfer tape 22, but as shown in FIG.
4 and rotates in parallel with the rotation of the drive roller 11. That is, the driving source (step motor) for conveying the document can be shared, and a driving source exclusively for winding is not required, resulting in low cost. Furthermore, since the drive roller 11 also serves as a platen roller for the thermal head 18, the cost is reduced. Then, when the recording of the predetermined mark is completed, the solenoid 26 is activated.
It is turned OFF and returns to the state shown in FIG. Thereby, the thermal transfer tape 22 is also wound up. In other words, the thermal transfer tape 22 is wound only during recording, and the amount of winding is approximately constant, so that it is not wound unnecessarily.

In any case, according to this embodiment, since the predetermined mark is recorded by the thermal transfer recording means 14, there is no problem of ink drying as in the stamp method, and the predetermined mark can always be clearly recorded. Also,
According to the thermal transfer method, it is possible to record not only the "completed" mark but also the date, machine number, etc. at the same time.
The contents of the mark can be easily changed, and the color can be freely selected depending on the thermal transfer tape 22. or,
Since recording is set by the solenoid 26 only during recording, the load on conveyance during normal transmission is reduced. Therefore, when recording after reading is completed, the recording conveyance speed may be made slower than during normal reading to generate torque.

Although the thermal head 18 was provided in the center,
For example, when the document 1 is conveyed based on one side, it may be provided shifted to one side in the axial direction. In this case, unlike when the thermal head 18 is placed in the center, the load caused by contact with the thermal head 18 may cause the document to skew, so it is better to provide a dummy head or the like on the opposite side to balance the load. Furthermore, although the recording is performed at the timing, it may be performed during the reading operation if necessary. However, it is more advantageous to carry out the process after reading is completed, as in this embodiment, since there are no restrictions on document feeding accuracy, etc.

Effects In the present invention, as described above, the predetermined mark is recorded by the thermal transfer recording means, so that the predetermined mark can always be properly recorded without problems such as ink drying as in the stamp method. Changes in content can be easily handled, and since the thermal transfer tape in the thermal transfer recording means is wound up by a winding means that shares the drive source of the document conveying means, it is inexpensive as there is no need for a dedicated drive source. Winding is performed in conjunction with conveyance, so there is no unnecessary winding.Furthermore, since recording is performed in a pressed state after document processing, the load during original document conveyance can be reduced.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is a side view during a reading operation, and FIG. 3 is a side view during recording. 13... Original transport path, 14... Thermal transfer recording means,
18... Thermal head, 20... Winding means, 22...
Thermal transfer tape, 24, 25...engaging means, 26... driving means.

Claims (1)

[Claims] 1. A document conveyance means for conveying a document for document processing such as document reading, and a thermal head and a thermal transfer tape that are arranged opposite to the document conveyance path of the document conveyance means and selectively record arbitrary marks on the document. a winding means for winding the thermal transfer tape in the thermal transfer recording means; a driving means for displacing and pressing the thermal transfer recording means onto the document; and a coupling means for selectively driving and coupling the drive means with the taking means, and after processing the document, the drive means is driven to record an arbitrary mark on the processed document, such as one that has been sent, by the thermal transfer type recording means, and the A marking device characterized in that a winding means is engaged with the original conveying means by a coupling means to perform a winding operation of the thermal transfer tape.