JPH03107962A - Image recorder - Google Patents

Abstract

PURPOSE:To prevent a punched hole and additional information from overlapping or being too much close to each other by providing an image recorder with a control means for changing the timing of the operation of an additional- information recording means when both punching means and additional- information recording means are selected to operate together. CONSTITUTION:When a punching mechanism 11 and an additional-information recording mechanism 10 are selected to operate together, a step motor is stopped after a relatively short length of time t3, which follows the detection of the off-edge of a fixing-completion detecting switch 22. Since the step motor, a head-raising/lowering solenoid, and an ink ribbon motor are controlled from that condition, and additional information is recorded, an additional-information recording position is deviated with the fixed amount towards the inside from the rear edge of a paper. At the end of recording the additional information, the step motor is revolved for the time t4, and is stopped; in this condition a cam motor is driven so that a cam 40 makes one rotation, and a hole is punched in a prescribed position away from the rear edge of the paper. Thus, even when both means are selected to operate together, the additional information can be recorded in the position where it can be securely read.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an image recording apparatus for recording an image on paper such as a copying machine or a printer, and particularly relates to an image recording apparatus having additional functions.

<Prior Art> Taking a copying machine as an example, a copying machine has a punching mechanism that can punch holes in copy paper, and an additional information machine that can record additional information on copy paper in addition to the original image. A copying machine having a recording mechanism has been proposed.

By the way, when punching holes in a sheet of paper onto which an original image has been copied, the positions for punching the holes are limited. For example, the left edge of the paper or the top edge of the paper.

Also, when recording additional information on the paper on which the original image has been copied, the recording position should be set so that it does not interfere with the original image.
．． 78, There are many edges of the paper where the original image does not fit = 1.

<Problems to be Solved by the Invention (2)> Since the above-mentioned problems exist, an image recording device is manufactured that has additional functions and both the 1 and -c punching mechanism and the additional information writing mechanism. When the additional function is activated, the punch hole and the additional information may overlap or be too close together.
There have been problems such as the recorded additional information being omitted due to the punched holes, and the A/1 additional information becoming invisible when the sheets are bound using the punched holes.

Therefore, an object of the present invention is to provide an easy-to-use image recording device that does not cause the above-mentioned problems while having two functions: an f4 addition function, a punching function, and an additional information recording function. shall be.

Means for Solving the Problems> This invention provides an image recording device for recording an original image on a sheet of paper. In response to the actuation signal, operation I7 records additional information of the original image 1 (=j) at a predetermined position on the paper (1 additional information recording means, 9 hole means and lf4 additional information recording means). Both sides?
・Control means for changing the operation timing of the additional information recording stage f=j when the operation is selected at the same time. This is an image recording device characterized by the following.

Further, the image recording apparatus is characterized in that the perforation position and the additional information recording position are the predetermined perforation position and the additional information recording position on the rear end of the sheet.

6. When both the drilling means and the additional information recording means are selected to operate at the same time.6. In this case, the operation timing of the additional information recording means is changed, and the additional information is recorded at a position shifted by a certain amount from the normal recording position. Yo・]te,
The holes formed by the drilling means and the additional information do not overlap or are too close together.

<Example> Below, with reference to the drawings, one example and 1 of the present invention will be described.
In Section 2, a detailed explanation will be given using a copying machine as an example.

FIG. 2 is an illustrative diagram showing a schematic configuration of a copying machine according to an embodiment of the present invention. , this copying machine is equipped with a contact glass 2 for placing a document and a document holder 3 on the second part of the copying machine main body 1, and inside thereof there are an optical system 4, an image processing mechanism 5, and a paper feed path 6. , a paper conveyance path 7, a fixing device 8, a paper refeed path 9, etc., and an additional information recording mechanism 10 and a punching mechanism 11 for realizing additional functions.

The optical system 4 illuminates and scans an original (not shown) set on the contact glass 2, and uses the reflected light as shown in the figure.
As shown by the dotted chain line, it is for guiding the image processing mechanism.

The image processing mechanism 5 is a known mechanism for reproducing an original image by electrophotography, and this mechanism includes a photosensitive drum 12.

The paper feed path 6 takes in sheets one by one from a paper feed cassette 13, 14 removably attached to the copying machine main body 1 or from a scooking bypass 15, and is operated in conjunction with the image processing operation of the image processing mechanism 5. The timing e is for supplying paper to the photosensitive drum 12.

The paper conveyance path 7 is for conveying to the fixing device 8 the paper on which the toner image has been transferred, which is separated by ff1l from the photoreceptor drums 1 and 2.

The fixing device 8 presses or heats the paper to
Paper 1. This is for fixing the toner image transferred to the surface.

The paper refeed path 9 is connected to the fixing device 8 by switching the switching claw.
This is to take in the paper sent out from the printer as it is or after it has been reversed, and to supply the paper again to the image processing mechanism 5 for composite copying or reverse side copying.

An additional information recording mechanism 10 disposed on the 1' downstream side of the fixing device 8 in the paper conveyance direction records additional information on the paper on which the toner image has been fixed. It is for.

The punching mechanism 11 is provided further downstream than the additional information recording mechanism 10 with respect to the paper conveyance direction, and is for forming bunch holes in the paper to be discharged to the discharge tray 16.

1A and 1B are illustrative diagrams showing detailed configurations of the additional information recording mechanism 10 and the punching mechanism 11 in this embodiment. In particular, FIG. 1A shows the state in which the punching mechanism 11 is in operation, and FIG. The figure shows the additional information recording mechanism in operation.

Referring to FIGS. 1A and 1B, a fixing discharge roller 21 is disposed at the exit of the fixing device 8.
A fixing completion detection switch 22 is provided on the downstream side with respect to the paper conveyance direction. When the leading edge of the paper is discharged from the fixing and discharging roller 21, the detection switch 22 falls from the state shown by the solid line to the state shown by the dashed line and turns on.
The switch returns to the solid line state and turns off the moment the trailing edge of the paper finishes passing over the detection switch 22.

Therefore, the leading edge of the paper can be detected by detecting the edge when the fixing completion detection switch 22 is switched from OFF to ON, and the trailing edge of the paper can be detected by detecting the edge when the fixing completion detection switch 22 is switched from OFF to OFF. Can be detected.

The paper discharged from the fixing discharge roller 21 is conveyed downstream in the conveyance direction by a conveyance roller 23. A switching pawl 24 is provided on the downstream side of the conveyance roller 23 in close proximity to the conveyance roller 23 . The switching claw 24 guides the paper toward the ejection roller 25 side in the state shown by the solid line, and guides the paper toward the paper refeeding path 9 in the state shown by the - dotted chain line.

As described above, the additional information recording mechanism 10 and the punching mechanism 11 are provided in this order on the path through which the paper is guided to the discharge roller 25 by the switching claw 24.

The additional information recording mechanism 10 includes a platen roller 26 arranged on a paper conveyance path and a thermal head 27 that can be moved up and down. The thermal head 27 is the first A
As shown in the figure, the headliner can be displaced into a state where it is raised from the platen roller 26, and a state where its headline is in contact with the circumferential surface of the platen roller 26, as shown in FIG. 1B, when it is lowered.

More specifically, a mounting member 29 is provided that is rotatable about a support shaft 28, and the thermal head 27 is mounted to this mounting member 29. The mounting member 29 is usually
Due to the reaction force of the leaf spring 31 that comes into contact with the casing 30,
In the figure, a clockwise moment is added. As a result, the thermal head 27 is placed on standby at a position elevated from the platen roller 26. The cam 32 is configured to be reversed 180 degrees by a head elevating solenoid (not shown), and when reversed, rotates the mounting member 29 counterclockwise as shown in FIG. 1B. As a result, the thermal head 27 is lowered against the reaction force of the leaf spring 31 that contacts the casing 30, and is brought into contact with the peripheral surface of the platen roller 26. Note that when the thermal head 27 comes into contact with the circumferential surface of the platen roller 26, the contact force is kept constant by the reaction force of the leaf spring 31.

The additional information recording mechanism 10 is further equipped with a pair of ribbon pulleys 33, 34, and these ribbon pulleys 33.3
An ink ribbon 35 is passed between the four. This ink ribbon 35 is positioned so as to cover the headline line of the thermal head 27. Therefore, when the thermal head comes into contact with the peripheral surface of the platen roller 26 as shown in FIG. 1B, the ink ribbon 35 comes into contact with the head line of the thermal head 27, and when the thermal head 27 is driven, the ink ribbon 35 ink is transferred to the platen roller 26 side, that is, to the paper side.

Note that the ink ribbon 35 is preferably colored in a color different from the color in which the original image is recorded, for example, in a case where the original image is recorded in black, for example, in red. Of course, the ink ribbon 35 having the same color as the original image may be used.

In this embodiment, a solenoid for raising and lowering the head (not shown)
Although the cam 32 is rotated by 180 degrees and the thermal head 27 is thereby raised and lowered, the thermal head 27 may be raised and lowered directly by a solenoid.

Further, the cam 32 may be rotated by a motor.

Furthermore, the thermal head 27 is fixed on the paper conveyance path,
The platen roller 26 may be moved up and down.

The punching mechanism 11 includes a paper tray 36 and a holding frame 37.
, the drilling shaft 38 held by the holding frame 37, the return spring 39 that urges the drilling shaft 38 to return upward, the cam 40 for sliding the drilling shaft 38 downward, and the punch hole that occurs when the hole is formed. A drilling waste storage section 41 for receiving drilling waste is provided.

When the cam 40 eccentric to the center of rotation is rotated once,
The drilling shaft 38 is slid downward from the state shown in FIG. 1B as shown in FIG. 1A. At this time, when a paper is placed on the table 36 of the paper tray, a hole is punched in the paper. As the cam 40 rotates further, there is no force to slide the drilling shaft 38 downward, so the first B
As shown, the drilling shaft 38 is returned upwardly by the force of the return spring 39.

FIG. 3 is a diagram showing the relationship between the operation timings of the additional information recording mechanism 10 and the punching mechanism 11.

Next, the control operations of the additional information recording mechanism 10 and the punching mechanism 11 will be explained with reference to FIGS. 1A, 1B, 2, and 3.

The conveyance roller 23, discharge roller 25, and platen roller 26 shown in FIGS. 1A and 1B are driven by a common step motor (not shown), and the speed thereof can be changed. On the other hand, the image processing mechanism 5, paper conveyance path 7, fixing device 8, etc. shown in FIG. 2 are driven by a main motor (not shown), and their speeds are constant and do not change.

If both the additional information recording mechanism 10 and the punching mechanism 11 are not activated, the paper coming out of the fixing device 8 is passed through the conveyance roller 23 and the discharge roller 2 at the same speed.
5 and discharged onto the discharge tray 16. In this case, the step motor is rotated at 300 mm/see.

On the other hand, when the additional information recording mechanism 10, the punching mechanism 11, or both mechanisms are selected to be activated, the rotational speed of the step motor is changed as described below.

First, when the paper is ejected from the fixing device 8 and the trailing edge of the paper finishes passing through the fixing completion detection switch 22, the detection switch 22 is switched from on to off as shown in FIG. Therefore, if the additional information recording mechanism 10 or the punching mechanism 11 is operated after a certain period of time based on the off-edge of the detection switch 22, the additional information is recorded inside by a predetermined dimension from the trailing edge of the paper, or Can punch holes.

If the punching mechanism 11 is selected to operate, the step motor is stopped after a time t1 after the off-edge of the detection switch 22 is detected. At this time, the trailing edge of the paper stops, for example, at a position 10 mm upstream of the perforation shaft 38. The step motor is stopped, and while the paper is stopped, the cam 40 is rotated once by a cam motor (not shown) (see FIG. 3C). Thereby, punch holes can be formed 10 mm inside from the trailing edge of the paper. Thereafter, when the step motor is rotated at a speed of, for example, 198 mm/sec (FIG. 3B), the ejection roller 25 rotates and the paper is ejected to the ejection tray 16. Next, when the additional information recording mechanism 10 is selected to be activated, the step motor is stopped at a time t2 after the fixing completion detection switch 22 is turned off (FIG. 3D). At this time, the trailing edge of the paper stops, for example, at a position 20 mm upstream of the platen roller 26. After the step motor is stopped, the head elevating solenoid is turned on to reverse the cam 32 by 180 degrees and lower the thermal head 27 to the state shown in FIG. 1B. Also, turn on the ink ribbon motor and feed the ink ribbon.

Then, in this state, the step motor is driven intermittently one step at a time, for example, 80 steps, and each time the step motor stops intermittently, additional information is recorded one line at a time by the thermal head 27 (Fig. 3D). .

In this case, since the additional information is recorded on the trailing edge of the copy paper, a portion of the copy paper does not remain in the fixing device 8, and a portion of the copy paper is absorbed by the heat of the fixing device 8. There is no need to worry about it deforming or burning.

The step motor is operated for 80 steps, and when recording of additional information is completed, the step motor is temporarily stopped.

Then, turn off the head lifting/lowering solenoid. As a result, the thermal head 27 is raised by the reaction force of the leaf spring 31. The ink ribbon motor continues to rotate during and after the thermal head 27 is raised, and the ink ribbon 35 fed out during printing is wound up. Therefore, ink ribbon 3
5 may remain stuck to the paper, or the ink ribbon 3 may remain stuck to the paper.
5 will not cause unnecessary slack.

After that, the step motor is set to 198 mm/s, for example.
Rotate with e c. As a result, the paper is transferred to the ejection roller 2.
5, the paper is discharged to the discharge tray 16.

The above is a case in which only one of the punching mechanism 11 and the additional information recording mechanism 10 is selected to be activated.Next, a case in which both mechanisms 11 and 10 are selected to be activated will be described.

In this case, the step motor is stopped after a relatively short time t3 after the off-edge of the fixing completion detection switch 22 is detected (FIG. 3G).

In this case, the trailing edge of the paper is, for example, attached to the platen roller 2.
It stops at a position 40 mm upstream of No. 6.

From this state, step motor,
Controls the head elevating solenoid and ink ribbon motor to record additional information. Therefore, the recording position of the additional information is a certain distance, for example, 20 m inward from the trailing edge of the paper.
It shifts by m.

After recording of the additional information is completed, the step motor is rotated for a time t44 at 198 mm/sec, and then stopped (
Figure 3G). At this time, the trailing edge of the paper is
It comes to a position, for example, 10 mm upstream of the point, and stops. In this state, the cam motor is driven to rotate the cam 40 once to form a punch hole at a position 10 mm from the trailing edge of the paper (Fig. 3 J).Then, the step motor is driven and the paper is ejected to the ejection tray 16. let

The operation selection signal in the above case is given, for example, by pressing a selection switch on an operation panel provided on the top surface of the copying machine main body 1.

FIGS. 4A, 4B, and 4C show examples of paper with punched holes, paper with an example of additional information recorded, and paper with an example of additional information recorded with punched holes, respectively.

As is clear from FIG. 4, according to this embodiment, when punch holes are formed at the trailing edge of the paper and additional information is recorded, the recording position of the additional information is set a certain amount inside from the normal recording position. The additional information and the punched hole are shifted so that they do not overlap.

In the above embodiment, a fixing completion detection switch 22 is provided at the discharge section of the fixing device 8, and this detection switch 22 detects the trailing edge of the paper based on the off edge at which it switches from on to off. The recording position of the punch holes and the additional information was controlled to be a position that was a desired distance inward from the trailing edge of the paper. It is also possible to control the recording position to a desired position.

In addition, without providing the fixing completion detection switch 22, the leading edge or trailing edge of the paper is detected based on a registration switch located upstream of the image processing mechanism 5, and the punch hole formation position and additional information are detected. The recording position may be controlled.

Additionally, a discharge confirmation switch 42 is connected to the discharge roller 25.
(See Figure 1A), the trailing edge of the paper is detected based on the on-edge of this ejection confirmation switch 42, and the punch hole forming position and additional information recording position are controlled based on this. You can also do this.

Furthermore, since the distance from the registration rollers for supplying paper to the image processing mechanism 5 to the additional information recording mechanism 10 or the punching mechanism 11 is constant, if the paper size is known, the timing of paper feeding by the registration rollers is fixed. It is possible to control the additional information recording timing and the punch hole forming timing based on the above information, so that the additional information can be recorded at a desired position on the paper, or the punch holes can be formed at a desired position on the paper.

Although the above explanation has been made using a copying machine as an example, the technical idea of the present invention is not limited to copying machines, but is equally applicable to other image recording devices such as facsimile machines and printers.
be able to.

(Effects of the Invention) Since the present invention is configured as described above, it is possible to effectively utilize the additional information recording means and the perforation means as additional functions, and when both means are selected to operate together. It is also possible to provide an image recording device that can record recorded additional information at a position where it can be reliably read.

[Brief explanation of drawings]

FIGS. 1A and 1B are illustrative views showing detailed configuration examples of an additional information recording mechanism 10 and a punching mechanism 11 according to an embodiment of the present invention. FIG. 2 is an illustrative diagram showing a schematic configuration of a copying machine according to an embodiment of the present invention. FIG. 3 is a diagram showing the operation timing of the additional information recording mechanism 10 and the punching mechanism 11 in one embodiment of the present invention. FIG. 4 is a diagram showing an example of paper on which additional information is printed or punch holes are formed according to an embodiment of the present invention. In the figure, 5... image processing mechanism, 10... additional information recording mechanism, 11... punching mechanism are shown.

Claims (1)

[Claims] 1. An image recording device for recording a document image on a sheet of paper, comprising: a punching means that operates in response to an activation signal and punches a predetermined hole at a predetermined position on the sheet; an additional information recording means that operates to record additional information other than the original image at a predetermined position on the paper, and a recording position of the additional information when both the punching means and the additional information recording means are selected to operate together. In order to shift the
An image recording apparatus comprising: a control means for changing the operation timing of the additional information recording means. 2. The image recording apparatus according to claim 1, wherein the predetermined perforation position and additional information recording position are at the trailing edge of the sheet.