JPH01291235A - Superposition feeder for diazo copying machine - Google Patents

Abstract

PURPOSE:To easily and appropriately set the rising and setting timing of a stopper for arranging leading edges by providing sensors which respectively detect an original and photosensitive paper before the stopper and controlling the original and the photosensitive paper in case of adjusting the leading edges of the original and the photosensitive paper. CONSTITUTION:The title device is provided with an original sensor PS7 which detects the arrival of the original G and a photosensitive paper sensor PS8 which detects the arrival of the photosensitive paper K. The original G and the photosensitive paper K are fed under the 'separation' of feeding rollers 3 and 7 and the 'rising' of a stopping member 6. After respectively detecting the arrival of the original G and the photosensitive paper K by the original sensor PS7 and the photosensitive paper sensor PS8, the original G and the photosensitive paper K are excessively fed to butt the respective leading edges against the stopping member 6. By setting the feeding rollers 3 and 7 in 'contact' and the stopping member 6 in 'setting', the original G and the photosensitive paper K are superposed and fed out after arranging their leading edges. Thus, the rising and setting timing of the stopper 6 for arranging the leading edges can be easily and appropriately set.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a polymer feed device for a diazo copying machine.

(Prior art) After guiding the originals and photosensitive paper that are automatically fed from the original storage section and the photosensitive paper storage section to a common transport path, the leading edges of the original and the photosensitive paper are aligned in this transport path. In the overlapping feed device of a diazo copying machine, which sends out the overlapping state toward the exposure section, a cam mechanism moves a stopper that serves to align the leading edges of the original and the photosensitive paper, and a 6-ra that sends out the original and the photosensitive paper after the leading edges are aligned. There is a known mechanism for this.

However, in the conventional mechanism described above, when the cam follower does not follow the cam sufficiently or when the conveyance speed is high, the timing of the stopper's appearance and retraction becomes inappropriate, resulting in a drop in the accuracy of tip alignment and, in some cases, paper jams. There is a problem.

Further, the timing of the protrusion and retraction of the stopper must be set by the design of the cam, and there is a problem in that it is difficult to adjust or change the timing after assembly.

(Objective) Therefore, an object of the present invention is to provide a superimposition feeding device that can easily and appropriately set the timing of appearance and retraction of a stopper for aligning the leading edge.

(Structure) In order to achieve the above object, the present invention includes a stop member that can freely appear and retract from the conveyance path, and a pair of rollers that are located downstream of this stop member, and that interact with each other in conjunction with the appearance and retraction of the stop member. A feed roller that can be separated from two rollers that can move toward and away from each other; a separator that is fixedly arranged between the document path and the photosensitive paper path in the conveyance path upstream of the stop member; and a document A document sensor detects the arrival of the photosensitive paper, and a photosensitive paper sensor installed opposite the separator detects the arrival of the photosensitive paper.
The document and the photosensitive paper are fed under the sensor, and after the arrival of the document and the photosensitive paper is detected by the document sensor and the photosensitive paper sensor, the document and the photosensitive paper are each over-fed to the stop member. After the leading edges abut, the feed roller is brought into contact, the stop member is brought into contact, and the feed roller is driven so that the original and the photosensitive paper are overlapped and sent out with their leading edges aligned. I have to.

Furthermore, in the above, a stop member is provided at one end of the arm having a fulcrum in the middle, and a feed roller is provided at the other end of the arm, and the arm is biased in a direction in which the stop member comes out into the conveyance path. a main solenoid for driving the arm in a direction that resists rotation of the arm by the urging means; a locking means for maintaining the rotation state of the arm by the main solenoid; It is effective to provide an auxiliary solenoid for releasing the above-mentioned holding of the locking means.

Hereinafter, a detailed explanation will be given based on one embodiment of the present invention.

In FIGS. 1 to 5, reference numeral 1 indicates an upper guide plate, and reference numeral 2 indicates an upper guide plate.
1 and 2 respectively indicate lower guide plates, spaces in which these plates face each other form a document conveyance path, and the right upstream side is connected to a document storage section that accommodates documents. - On the other hand, a roller 3 is located in the conveyance path in the middle of the lower guide plate 2, and a part of the lower guide plate 2 is arranged so that the photosensitive paper K can be inserted from the upstream side of the roller 3 along this roller. A hole 4 for photosensitive paper is formed by cutting out the hole.

One end of a separator 5 made of a low-reflection material is fixed to the lower guide plate 2 at this location 4. The free end side of the separator 5 extends facing the outer periphery of the rollers 3 and divides the conveyance path into upper and lower halves. The opposing space between the separator 5 and the lower guide plate 2 constitutes a photosensitive paper conveyance path.

A stop member 6 is located near the free end of the separator 5 and is retractable from the direction conveyance path. Further, on the downstream side of this stop member 6, there is a roller 7 that can freely come into contact with and separate from the roller 3. The roller 7 is fixed to a shaft 7-1, and both ends of the shaft 7-1 pass through elongated holes 8-2 of a support plate 8-1.

The support plate 8-1 is integrated with the bending piece 8-3, and the bending piece 8-3 is integral with the support plate 8-1.
3 is fixed to a plate 9 extending coaxially with the roller 3. This play 1-9 also includes the step member 6.
The proximal end of is fixed.

Further, at both ends of the play 1 to 9, arms 10 are fixed and substantially parallel to the bending plates 8-3.
A fulcrum shaft 11 protrudes from the middle and is pivotally supported by a stationary member.

The downstream end of the arm 1110 can be pulled by the main solenoid 13 via the wire 12.

On the other hand, the upstream end of the arm 10 is biased downward by a compressible spring 14. In addition, the shaft 7-1 also has springs 1 on both ends thereof.
5 is biased downward.

Here, a pair of feed rollers 16 is formed by rollers 7 and 3.
Configure.

When the solenoid 13 is off, the splash 1 as shown in FIG.
Since the arm 10 is rotated by the biasing force of the spring 14, which exceeds the force of the stop member 6, the stop member 6 is placed in the "out" state to the conveying path, thereby blocking the path of the original G and the photosensitive paper in common.

At the same time, the shaft 7-1 is supported by the lower end of the elongated hole 8-2 and is in a "separated" state away from the roller 3.

Further, as shown in FIG. 3, when the solenoid 13 is turned on, the arm 10 is rotated by a strong suction force, and the stop member 6 is "retracted" from the conveyance path, allowing the original and the photosensitive paper to advance. do. At the same time, the support plate 8-1 also descends, allowing the shaft 7-1 to move through the elongated hole 8-2, and the urging force of the spring 15 brings the roller 7 into pressure contact with the roller 3, that is, in a "contact" state. .

Next, at a position immediately upstream of the position where the stop member 6 blocks the conveyance path, a document sensor PS7 is placed between the document conveyance path and facing the separator 5, and connects the photosensitive paper conveyance path to the upper guide plate 1. A photosensitive paper sensor P is placed in between and faces the separator 5.
S8 are provided on the lower guide plate 2, respectively.

Here, the document sensor PS7 and the photosensitive paper sensor PS8 are also in a facing relationship with each other, and a separator 5 which has been subjected to a low reflectance process is interposed between them in order to eliminate false detection.

In such a configuration, the second solenoid 13 is turned off.
Under the state shown in the figure, the feed roller 16 is "released" and the stop member 6 is "out", and the state shown in FIG. 3 is reached when the main solenoid 13 is turned on. Under this condition, the original G and the photosensitive paper K are fed.

When either the document sensor PS7 or the photoreceptor sensor PS8 detects the sheet 1-, the main solenoid 13 is turned on and the state shown in FIG. 2 is established.

Regarding the m document G, even after its leading edge is detected by the document sensor PS7, the paper feeding roller of the document accommodating section is driven until the leading edge fully abuts against the stop member 6, and then stopped. The slight amount of feeding that continues even after the original is abutted is called excessive feeding. For example, this excess feed amount is any.

Similarly, after the leading edge of the photosensitive paper K is detected by the photosensitive sensor PS8, the photosensitive paper K is brought into sufficient contact with the stop member 6 by executing the required excessive feed by the photosensitive paper feeding roller (for example, the applied feed amount = bmn). .

Each of the above-mentioned excessive feeds is controlled by a pulse count of a rotary encoder provided in a main motor which is a driving source of all the copying machines.

Thus, the leading edges of the original G and the photosensitive paper are aligned with the stop member 6 as shown in FIG.

Next, when the main solenoid 13 is turned on, as shown in FIG. is given, and the original and photosensitive paper are sent out in a superimposed state with their leading edges aligned.

In this way, in this example, when the leading edges of the original and the photosensitive paper are aligned, over-feeding is controlled by installing sensors to detect the original and the photosensitive paper respectively in front of the slider, which improves the accuracy of the edge alignment. can be improved.

Furthermore, since the stop member is moved in and out using a solenoid, it can be adapted to high-speed conveyance. By the way, conventionally 850m/h
However, high-speed conveyance of 1200-1300 m/h is also possible.

Note that the document sensor PS7 and the photosensitive paper sensor PS8 can also be assigned the function of detecting misfeed for each sheet, and if both do not detect the arrival of each sheet even after a certain set time has elapsed, it is assumed that there is a paper feed failure or insertion. It is also possible to stop the conveyance by determining that there is a defect or some kind of trouble during the conveyance process, such as a jam.

Next, the procedure for controlling the above operations by computer will be explained with reference to the flowcharts of FIGS. 7 and 8.

FIG. 6 shows the main routine, and FIGS. 7 and 8 show the subroutines. After setting the initial state in step (1) and executing various copying process routines, in step (2) a subroutine for document leading edge matching (RGCNTI) is executed, and in step (3), a subroutine for photosensitive paper leading edge matching (RGCNTI) is executed. Execute and return to step (1).

In the document leading edge match (RGCNT1) subroutine shown in FIG. 7, in step (2), after the document is inserted, it is checked whether the document leading edge matching mode is entered or not using the flag rSENTGFJ.

Next, in step (2), it is checked whether the document sensor PS7 is on or not based on the state of the flag rGRGsNJ. In step ■, when the document detection sensor PS7 is on, it is checked whether the excess feed amount rSENTGCJ is the scheduled A pulse (〆anwn), and when the count value exceeds A, the process proceeds to step ■. . Then, in step ■, set the excessive feed control end flag rRGJBF2J, and then in step ■, set the photosensitive paper excessive feed end flag rR.
Checking GJBF3J. This flag rRG
If the JBF3J flag is set, turn on rSTP 5OLJ corresponding to main solenoid 13 in step ①.
The stop member 6 is "retracted" from the conveyance path and the original is sent out together with the photosensitive paper.

If the flag rRGJBF3J is not set in step (2), then in step (2), the roller clutch related to document feeding is turned off to stop document feeding.

In the photosensitive paper leading edge match (RGCNT2) subroutine shown in FIG. 8, steps 1 to 0 are controlled by an algorithm similar to that shown in FIG. The photosensitive paper is fed by turning off the clutch of the photosensitive paper feeding roller.

By the way, in the configuration shown in FIG. 1, in which one main solenoid 13 is used to directly pull one end of the arm 10, it must be kept in the on state while the rollers 7 are in contact with the rollers 3. Therefore, the main solenoid 13 must be kept in an energized state, and the time it takes to stay in this "contact" state is overwhelmingly longer than the time it takes to stay in a "disconnected" state.

Therefore, in order to suppress early deterioration of the main solenoid 13 and reduce power consumption, it is effective to provide a locking means for maintaining the suction state of the main solenoid 13 and a small-capacity auxiliary solenoid for releasing the holding of the locking means. It is.

An example of this will be explained below with reference to FIG.

In the figure, plunger 13-1 of main solenoid 13
A lock pin 13-2 passes through it. On the other hand, a stopper 13-3 is attached to a pin 13-4 on the side of the main solenoid 13.
It is pivoted by.

One end of the stopper 13-3 forms a hook portion 13-5, and the lock pin 13 rotates in response to the swinging movement about the pin 13-4.
-2 can be freely connected and disconnected. Further, the other end of the stopper 13-3 is connected to the auxiliary solenoid 17 so as to be freely suctionable. Further, the connecting portion is urged upward by a spring 18.

In the above configuration, the stopper 13-3 and the lock pin,
The spring 18 and the like constitute one aspect of the locking means.

Next, the order of operation will be explained.

In the initial state, the stop member 6 is retracted from the conveyance path and the roller 7
is in “touch” state to Colo 3. Therefore, main solenoid 1
3 is in the suction state and the stopper 13-3 is the lock pin 13
-2 is held by the hook portion 13-5. In this state, the manuscript G
and photosensitive paper K is fed in. In reality, they are almost the same, but when either the original G or the photosensitive paper is detected first by the sensor, the auxiliary solenoid 17 is turned on and the stopper 13-
3 comes off from the lock pin 13-2, the stop member 6 comes out onto the conveyance path, and the roller 7 separates from the roller 3. After the original G and the photosensitive paper K are over-fed, their leading edges are aligned. Next, the main solenoid 13 is turned on and the stop member 6
is lowered from the conveyance path, and the rollers 7 contact the rollers 3 to send out the original and the photosensitive paper. Here, as the main solenoid 13 is sucked down, the hook portion 13-5 of the stopper 13-3 is engaged with the lock pin 13-2.

Therefore, even after the main solenoid is turned off and the excitation stops, the plunger maintains its suction state.

The operational relationship between each sensor and each solenoid is shown in a timing chart in FIG.

According to this example, since the stop member 6 and the roller 7 are moved in and out using the reversible position holding function of the mechanical locking means, the load on the main solenoid can be reduced.

As other means for driving the stop member 6, the following measures can also be considered.

This is done by setting two types of voltage values to be applied to the solenoid and using them depending on the timing of the solenoid's operation.

In this case, the solenoid shown in FIG. 7 is used.

According to the timing chart in Figure 11, solenoid 1
The rated voltage is applied to 3 by a trigger signal (about 1 second), and it is sufficiently attracted. Thereafter, the solenoid 13 maintains the suction state due to the hold signal.

Solenoids typically have a fairly low attract and hold voltage level, and their force is also comparable to that at rated voltage.

In FIG. 12, symbols IC□ and ■C2 indicate buffer transistors for driving the solenoid, symbol R indicates a voltage dividing resistor,
The symbol indicates a diode.

By using the solenoid in this way, it is possible to drive a large load with a small solenoid by limiting the on-time (rated output) time.

In this example, by limiting the rated voltage application to about 1 second and setting the hold voltage to about 173 to 1/4 of the rated voltage, the attraction force at the time of triggering is about 3 times the rated actual force. As a result, a stop member with a heavy load can be controlled with a single solenoid.

Next, a diazo copying machine suitable for carrying out the present invention will be explained.

In FIG. 13, A4 size photosensitive paper is loaded in the upper cassette 20, which is a photosensitive paper storage section, and A3 size photosensitive paper is loaded in the lower cassette 21.

First, when you turn on the power switch (not shown), the 14th
A display 210 ("Please wait") on the operation section display panel shown in the figure lights up, and the developer 22 is pumped into the developer tray 23 of the developer section 48 for about 30 seconds.

After that, the developer 22 continues to be circulated, but the display 2]0 changes to display 209 ("Ready to start"), and 1
"Ready state".

During this time, the main body of the copying machine was CPIJ300 (first
(See Figure 6).

This check and control includes, for example, the cassette 20
If photosensitive paper is loaded, the cassette 1 is raised by the lift motor 29 to the paper feed surface where the paper surface contacts the paper feed roller 41, and the lift motor 29 is turned off by a detection signal from the paper surface detection sensor PS4.

Then, the cassette size and the amount of photosensitive paper for the cassette 1 are displayed on the operation section display panel by the size sensor PS15 and photosensitive paper remaining amount sensor (not shown). For example, A
If there are 150 sheets of 4-size photosensitive paper (2/3 of the size when fully loaded), the cassette size display 220 will be "A".
4" section lights up, and at the same time the remaining amount display 216, 3.
The left two lamps are lit to provide a visually easy-to-understand display. The same information is displayed for the lower cassette 21 as well.

For example, if an A3 size cassette is loaded but no photosensitive paper is loaded in the cassette, the "A3" part of the cassette size display 221 will light up, but at the same time the photosensitive paper replenishment instruction 219 will also light up and the photosensitive paper will not be exposed. The user is prompted to replenish paper, and the display 217 indicating the remaining amount does not light up at all.

This state, that is, the 1-preparation state.

Next, by turning on the start/stop switch 200 in FIG. 12, the display 209 disappears, the main motor starts rotating, the exposure fluorescent lamp 160 lights up, and the insertion instruction arrow 215 lights up.

In addition, this machine uses so-called automatic exposure (hereinafter referred to as AUT E), which automatically controls the printing speed in diazo copying machines.
The copy process in the AE mode will be described below.

The AE mode is set by moving the slide knob 201 to the leftmost AE position on the operation unit display panel shown in FIG. This AE mode setting allows AE
Display 205 is lit.

Note that when the slide knob 201 is at a position other than the above-mentioned AE position, the mode is manual paper feeding mode, and the operator determines the printing speed by the moving position of the slide knob and performs a copy operation.

Next, an overview of control when feeding paper from a cassette in the AE mode will be explained.

In the AE mode, as shown by reference numerals 202 to 204 in FIG. 14, there are adjustment knobs for selecting the sensitivity of the photosensitive paper (usually lower grade), selecting the thickness of the photosensitive paper (usually thinner), and adjusting the AE density level. It is assumed that predetermined settings have been made. In a diazo copying machine, copying is evaluated based on the density of the background, so subtle density adjustments are made using the adjustment knobs and the like.

The printing speed is determined by measuring the light using the AE light source lamp 28 and photodiode PS1 shown in FIG. 13, and inputting the light transmittance output to the CPU 300, which is a one-chip microcomputer shown in FIG. 14, to calculate and set it in advance. The speed of the main motor 33 is controlled to the optimum burning speed, and the burning is performed. If the fluorescent lamp 160, which is the burning light source, deteriorates, the photodiode PS
The detection output of No. 2 is fed back to the PPU 300 to perform necessary deterioration correction and speed control.

Next, the copy operation begins.

When the document side guide 220 shown in FIG. 15 is set in the <A4 position as shown in the same figure, the LEDs shown with reference numerals 222 and 214 are lit on the operation display panel of FIG. 14, and the upper cassette is selected. , cassette paper feed (display 214
), AE mode (display 205), insertion OK (insertion instruction arrow 215 lights up).

Now, in FIG. 13, when a document G is inserted along the document side guide 220, it is drawn in by the feed roller 307. When insertion is detected by the insertion detection sensor PS3, conveyance of the original and photosensitive paper and AE control are started.

Eventually, the document G passes the position of the AE light source lamp 28. When it passes, the photodiode PS1 output when the document is dark, which has already been input to the CPU 300 at the time of the aforementioned insertion detection.
And, the photodiode PS1 output ■ when there is a document is C
After being input to the PU 300, the document transmittance is determined by the calculation formula: output (when the document is present) ÷ output (when the document is dark) (2).

Further, in this copying machine, the transmitted output from the photodiode PS1 when a document is present is stable after a rise of approximately Looms. Therefore, as sampling data for the transmittance calculation, sample data within approximately 200 + + + seconds after the photodiode Psi detects the original is used, and the maximum value of transmittance is taken as the transmittance of the inserted original.

Since the A'E control data has been prepared in this manner, the conveyance system such as photosensitive paper feeding will be explained next.

In the cassette unit, after the insertion detection sensor PS3 is turned on, the paper feed roller 41 starts rotating by the upper cassette ford clutch (not shown) at the NI pulse, and the photosensitive paper K
is sent out. Then, at the N2 pulse, preparations for matching the leading edges of the original and the photosensitive paper begin, and the main solenoid 13 (see FIG. 1) is turned off, thereby lowering the stop member 6 and opening the rollers 3.7. Here, the roller 3 and the stop member 6 move in conjunction with each other, and opening and closing of the re-roller 3.7 is determined by raising and lowering the stop member 6, allowing control of conveyance and registration adjustment.

For the original G and photosensitive paper, as a registration adjustment to match the leading edge, the original G is placed on the photosensitive paper K after the original sensor PS7 is turned on.
For this, excessive feed is performed with a resistance of b+nm, and the tip is set by commonly abutting against the stop member 6.

After the end matching operation is completed, the main solenoid 13 is turned off to raise the stop member 6, close the roller 3, and send the document G and photosensitive paper K to the exposure section.

In addition, the speed control under the AE mode is carried out by the CPU 30, when the tip coincides, that is, at the time of the correction pulse before the stop member 6 descends, the CPU 30 controls the printing speed according to the transmittance calculated as described above and the correction based on the output of the photodiode PS2.
0, and the main motor 33 is controlled to achieve a proper AE speed.

In this way, the transmittance and AE speed are determined, and the speed of the document is controlled.

Then, after the trailing edge of the document G passes the insertion detection sensor PS3, the insertion instruction arrow 215 lights up again at the H pulse (Hmu), and the device waits for the next document. Then, for the next original, the original transmittance and printing light amount correction are measured in the same manner as in the above example, and the AE speed is set at the time of the <MI pulse as described above, and when the transmittance is significantly different from the previous original, , for example, when the difference is 10% or more, the subsequent original is stopped at the leading edge matching area until the trailing edge of the previous original passes through the exposure area.

That is, the main solenoid 13 is turned on to open the roller 3, and the conveyance electromagnetic clutch (not shown) for switching the drive of the roller is turned off to stop the feed roller 307. After stopping the document at the leading edge matching section until the previous document passes through the exposure section, the main motor 33
After changing the rotational speed of the document to the AE speed based on the later document transmittance, the main blade 13 is turned off and the conveyance electromagnetic clutch is turned on to send the document to the exposure section.

Of course, if the transmittance of the previous document and the subsequent document is not so large, the documents G are sequentially sent to the exposure section according to a predetermined insertion interval. Note that the AE speed in this case is set equal to the AE speed of the previous document in this example. In the exposure section, the original and photosensitive paper are conveyed while being pressed against a cylinder glass 43 by a belt 42. After proper printing is performed in this exposure section, the original G and the photosensitive paper are appropriately shifted from each other by shift rollers 44 and 45, and separated from each other by a rotary guide 46. In other words,
The photosensitive paper is held in the notch of a rotary guide 46 that starts rotating at a predetermined timing, separated from the original G, and then conveyed to the developing section 48 via a switching plate 47.

On the other hand, the document G passes along the smooth surface of the rotary guide 46 after the notch has already rotated, and is then discharged to the external stock section 51 via the discharge roller 49 .

To further explain the process of conveying the photosensitive paper, the smoothing rollers 44 and 45 detect the detection signal of the paper tension detection sensor PS9 due to shifting and the on/off of the smoothing roller 44 (low speed) and shifting roller 45 (high speed). The CPU 300 controls an electromagnetic clutch (not shown) that switches between the original and the photosensitive paper. The aim is to ensure the separation of

As mentioned above, the smoothing roller 44.
After being separated through 45 copies, the original G is ejected outside the machine.
The photosensitive paper K is sent to the developing section 48, but at this time, depending on the detection timing of the detection signal of the document ejection detection sensor PS11 at the exit of the ejection roller 49 and the detection signal of the photosensitive paper detection sensor PSIO immediately after the rotary guide 46. The CPU 30o determines that the above-mentioned 44.45 portions of the smoothing roller have been correctly shifted and separated.

As a result, the switching plate 47 is actuated by a solenoid (not shown), and the photosensitive paper is sent to the developing section.

If it is determined that the smoothing rollers 44 and 45 have not separated the paper correctly, the switching plate 21 is not operated and the original or photosensitive paper is transferred to the original ejection path provided with the ejection roller 49 or the counter roller 50. The photosensitive paper is ejected out of the machine through a reinsertion path provided with a photosensitive paper. In addition, if both of the above-mentioned sensors do not detect detection even after a specified time (number of pulses) has passed after only the original ejection sensor PSII or photosensitive paper detection sensor PSTO detects or the end of shifting is detected, safety control such as stopping the drive or ejecting the paper from the machine can be performed. It is.

After the photosensitive paper is fed into the developing section 48, it is ejected from the machine (copy stock) by the photosensitive paper ejection detection sensor PS13.
is confirmed.

The above is an overview of the control from document insertion to copy (photosensitive paper) ejection in cassette paper feeding.

Paper feeding from the lower cassette 21 is similarly controlled. In addition, the manual paper feeding mode is the mode when the document side guide 220 shown in FIG.
Perform the copy operation according to the instructions in step 15.

In addition, the power supply has an auto-shut-off function, and if there is no input signal from the input of originals or other operation switches for a certain period of time (3 minutes in this example), the auto-shirt 1-off function is activated and the copy preparation state is activated. , enters the ready state, waiting for the next copy.

In the preparation state, the display 210 and the insertion instruction arrow 215 turn off, and the number of copies processed so far, the set cassette size, the amount of photosensitive paper, etc. are displayed, but the main motor 33 is not driven. is in a stopped state.

(Effects) According to the present invention, the timing of appearance and retraction of the stopper for aligning the tip can be easily and appropriately set, which is advantageous.

Brief description of the drawings Figure 1 is a perspective view illustrating the configuration of a part of the stopper for end alignment, Figures 2 and 3 are front views of the same as above, and Figure 4 illustrates the arrangement of the separators. Figure 5 is a front view of the same as above, Figures 6 to 8 are flowcharts related to tip alignment control, Figure 9 is a diagram explaining the configuration of the locking means and auxiliary solenoid, and Figure 10 is the main solenoid and auxiliary solenoid. 11 is a timing chart explaining another method of driving the solenoid, FIG. 12 is a solenoid drive circuit diagram of the same as above, and FIG. 13 is a diazo type copy suitable for carrying out the present invention. 14 is a front view of the operation unit display panel of the diazo copying machine according to the same figure as above; FIG. 15 is a front view of the document side guide section; and FIG. 16 is a control block of the diazo copying machine. It is a diagram.

3.7... Roller, 5... Separator, 6... Stop member, 13... Main solenoid, 17... Auxiliary solenoid, PS7... Original sensor, PS8... Photosensitive paper sensor.

% f5 agony [10[1[I B5 A4 154 A3 ↑ Rib feeding Procedural amendment (voluntary)

Claims (1)

[Claims] 1. After guiding the original and photosensitive paper that are automatically fed from the original storage section and the photosensitive paper storage section to a common conveyance path,
In the overlapping feed device of the diazo copying machine, which aligns the leading edges of the original and the photosensitive paper in this conveyance path, overlaps them, and sends them toward the exposure section, there is a stop member that can freely retract from the conveyance path, and a downstream side of this stop member. A feed roller, which is a pair of rollers located on the side and is movable toward and away from each other in conjunction with the protrusion and retraction of the stop member, and a feed roller, which is located upstream of the stop member in the conveyance path, and is located between the document path and the photosensitive paper. It has a separator fixedly arranged between the paths, a document sensor provided opposite to the separator to detect the arrival of a document, and a photosensitive paper sensor provided opposite to the separator to detect the arrival of photosensitive paper. When the above feed roller is “released” and the above stop member is “out”
The original and the photosensitive paper are fed under the sensor, and after the arrival of the original and the photosensitive paper are detected by the original sensor and the photosensitive paper sensor, the original and the photosensitive paper are over-fed respectively to the stop member. After abutting each leading edge, the feed roller is brought into contact, the stop member is brought into recess, and the feed roller is driven to overlap the original and the photosensitive paper with their leading edges aligned, and then feed the paper. A polymerization feeding device for a diazo copying machine featuring the following. 2. A stop member at one end of the arm having a fulcrum in the middle;
Feed rollers are provided at the other ends of the arms, and biasing means biases the arms in a direction such that the stop members come out into the conveyance path, and rotation of the arms by the biasing means. 2. The apparatus according to claim 1, further comprising: a main solenoid capable of driving said arm in a direction opposed to said main solenoid, a locking means for maintaining said main solenoid in a rotational state of said arm, and an auxiliary solenoid for releasing said holding of said locking means. Polymer feed device for diazo copying machine.