JPS58125060A - Recorder - Google Patents

Abstract

PURPOSE:To put recorded members in order of page, by providing an inversion controlling means for recorded members on a carrying path, through which recorded members are led to a sorter, to store recorded members in the sorter in the face-up or face-down state. CONSTITUTION:A recorder has an inversion controlling part 310 for transfer papers, carrying rollers 311, 312, 313, 314, 315, and 316, and a carrying path switching lever 317. The state of transfer papers to be stored in storage trays 301m and 302m is controlled to the face-up or face-down state by the inversion controlling part 310. For example, when transfer paper is stored in a tray group 302, transfer paper is led to the tray group 302 through the inversion controlling part 310 and are stored in trays 302-1-302m in the face-down state. Thus, recorded members stored in the sorter are put in order of page independently of the recording mode.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention is particularly aimed at improving the control of storing recorded members into a sorter.

This type of recording device has a single-sided recording mode that records only on one side of the recording material, a double-sided recording mode that records on both sides, and a sorter mode that distributes and stores the recorded recording materials in each storage tray of the sorter. The recording operation can be performed in various recording modes or storage modes such as.

Furthermore, in this type of recording device having an auto (1) feeder function, there are other recording modes such as a book mode for recording book-shaped originals and a sheet mode for recording sheet-like originals using the auto feeder function. can perform actions.

Here, in conventional recording devices of this type, recording members are stored in the storage tray in the sorter in a so-called face-up state, with the recorded side facing up during single-sided recording, or, conversely, face-down. No means has been proposed for controlling whether or not the device is stored in this state.

Therefore, the recording materials are stored in each storage tray of the sorter in either a face-up or face-down state for each recording mode, and page alignment of the recording materials is performed regardless of the recording mode. I couldn't do it.

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional drawbacks, it is an object of the present invention to provide a recording device that can align the pages of recorded members stored in a sorter regardless of the recording mode. .

j 1 For this purpose, in the present invention, a recording member reversal control means is provided on the conveyance path that leads the recorded recording member to the sorter,
For example, by controlling the reversal control means for each recording mode, recording members can be stored in the sorter in either a face-up or face-down state.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 shows an example of an electrophotographic copying machine using a powder development transfer method and having an auto feeder function to which the present invention is applied.

In the figure, / is an original placing table on which the original oB to be copied is placed, and the original OB placed on the placing table / is pressed by the original cover 2. At the bottom of the mounting table, as shown in the figure, there are 74 illumination lamps 3. A movable mirror lens S, a fixed in-mirror lens B, a mirror 7, and a photosensitive drum are provided.

When the copy button provided on the operation unit (not shown) is pressed, the photosensitive drum begins to rotate in the direction of the arrow shown (counterclockwise), and is charged and irradiated with light by each charger and each lamp described later. . At the same time, the light (3) lamp for illuminating the manuscript, which is a movable part of the science system, 3. Movable mirrors a and S move to the positions indicated by broken lines in the figure.

When the photosensitive drum r completes a predetermined rotation, exposure starts, and the document illumination lamp 3. The movable mirror moves at the same speed as the circumferential speed of the photosensitive drum to the left from the position shown by the dashed line, until it reaches the trench.
The movable mirror j also starts moving leftward from the position shown by the broken line at half the speed. The image of the original OB illuminated by the original illumination lamp 3 is displayed on a movable mirror 5.
, an in-mirror lens B, a mirror 7, and the like, an image is formed upwardly on the photosensitive drum at the fog light section 9. When the exposure is finished, the document illumination lamp 3. The movable mirror 3 stops moving to the left in the figure, and immediately starts moving in the opposite direction (to the right in the figure).The number of copies is specified in advance by the number-of-copies instruction key (not shown) provided on the operation panel. The above operation is repeated depending on the number of copies to be made.

When the exposure for the specified number of sheets is completed, the document illumination lamp 3. The movable mirror 5 returns to the predetermined position shown by the solid line in the figure and stops (-.In addition, W, the moving speed of the illumination lamp 3, etc. to the right is C', and the moving speed to the left (G). It also prints quickly, increasing copying efficiency.

The photosensitive drum has a photosensitive layer covered with a transparent insulating layer, and rotates counterclockwise as described above. As the photosensitive drum g rotates, it first passes through the AC static eliminator l, which is supplied with an ACC Ueda current from a power source (not shown).
At the same time as it is subjected to AO charge removal by θ, it is exposed to light by a lamp // to erase the charges on the surface of the insulating layer and inside the photosensitive layer. It is charged to (+) by charger/2. Subsequently, when reaching the exposure section t, the image from the illumination section /3 is subjected to slit exposure and at the same time undergoes AO static elimination by the AC static eliminator /F supplied with AC high voltage current from the high voltage power supply.

Then, the entire surface is exposed by the lamp 15,
An electrostatic latent image is formed on the surface of the photosensitive drum l. Next, it enters developing device/6. Developing device/B is a container for storing developer/7. It has a developing roller 1g and a doctor blade lq, and the electrostatic latent image on the photoreceptor drum g is visualized by the developer magnetically attracted to the developing roller/I.

(5) On the other hand, the transfer paper is stored in a cassette (or mechanical paper feed deck) disposed at the bottom of the main body of the copying machine, as shown in the figure.

Various cassettes are available depending on the size of the transfer paper, and can be easily replaced as needed. Further, the paper feed deck 2/ is also configured so that transfer paper of several sizes can be stored with a simple operation as required. The transfer paper stored in the cassette or paper feed deck 2/ is pressed against paper feed rollers n and n with a predetermined pressure, respectively. When the photosensitive drum g rotates to a predetermined position, the paper feed roller 22 or the blade starts rotating and feeds the transfer paper to the left. The transfer paper sent out from the cassette), 217 or the paper feed deck 21 in this way is conveyed via the roller pair 21 or the roller pairs B, g, and the roller pairs n, x. reach. At this time, roller pair y is in a stopped state,
The transfer paper is forcibly looped with its leading edge touching the roller pair 29 to correct the skew. When the pair of rollers rotates at a predetermined timing, the transfer paper is held between the pair of rollers 29 and guided to the photosensitive drum. Then, (6) the photosensitive drum is brought into close contact with the photosensitive drum after being synchronized with the image above. Furthermore, the image on the photosensitive drum g is transferred onto the transfer paper by being charged by a (+) high voltage current from a high voltage power source in a transfer charger 3θ. After the transfer, the transfer paper P is neutralized by a separation static eliminator 3/ to which high-voltage currents A and C are supplied from a high-voltage power source, thereby weakening the attraction force between the transfer paper P and the photosensitive drum. Subsequently, it is separated into a photosensitive drum at position 32,
The belt 3 driven by the roller 33 guides the image to the fixing section 3S.

In the fixing section 33, the unfixed image on the transfer paper is pressed against each other at a predetermined 1] mocha and rotated at the same circumferential speed by a pair of rollers 36.
, n, it is fixed under a predetermined pressure. The transfer paper that has left the fixing unit 35 is finally passed through a static eliminator 3g.
After the remaining charge on the surface is removed by the guide y, it is guided to a pair of discharge rollers ψ, and is discharged onto a drag/draft as described below.

After the transfer, the remaining developer is wiped off on the photosensitive drum by the edge portion 2' of the blade cleaner that is pressed against it, and the next cycle is repeated again. After repeating the above-mentioned cycle for a predetermined number of sheets, the rotation is continued, and the internal charge of the photosensitive layer is removed by neutralization using the AC static eliminator/l and full exposure using the lamp/S. It rotates a predetermined amount and then stops in preparation for the next time.

on the other hand,! ; / is an auto feeder (hereinafter referred to as [A, Fj), and the operation of copying using AF or copying in the double sheet mode will be described below. The AF optical system includes an original illumination lamp S, 2. Fixed mirror 53. A movable mirror S is arranged as shown. When using AF, use the document illumination lamp 3. The movable mirrors p and t stop at the positions indicated by the solid lines in the figure, and the movable mirror 5 for AF moves to the right from the position indicated by the broken lines in the figure and stops at the position indicated by the solid lines. At this time, AF original illumination lap j-2, mirror S3
．． An AF optical path is formed by the movable mirror slI, the in-mirror lens B, and the fixed mirror 7.

Sheet originals O8 stacked on sheet original insertion table SS
When the original sheet O8 is placed, the lowermost sheet original O8 is separated and moved forward by a pair of separating/feeding rollers that rotate in opposite directions to feed the original sheet, and is fed into the guide 5, where the leading edge is detected by the sensor 10. Stop once. When the photosensitive drum t rotates in a predetermined position, the sheet original O8
is again conveyed between the guide glasses 3, etc. in synchronization with the photosensitive drum by the rollers 2 and 3, and
It is illuminated by a lamp 52. The image of the sheet original O8 is displayed on mirror j3. An image is formed on the photosensitive drum l by the movable mirror JV, the in-mirror lens B, and the fixed mirror 7.

Next, sheet document O8 is the roller pair.

Guide Otsu 7. The document tray 7/ is moved by the discharge roller pair t9.
sent upwards. This operation is a sheet document insertion table! j
This process continues until the upper sheet original O8 is used up.

The sheet document insertion table sj is rotatably supported by a shaft 72, and the document tray 7/ is rotatably supported by a shaft 73 in the clockwise direction shown in the figure. When using AF, a stopper (
(not shown).

When the AF is not in use, it is configured so that it can be rotated counterclockwise and stored at the position indicated by the broken line to be used as a workbench. Furthermore, by using AF, it is possible to copy long originals, and a large-sized cassette is used in this embodiment. Therefore, as shown in the figure, a storage section for a large cassette is disposed in a portion where the main body of the copying machine has become larger by adding A and F, thereby eliminating wasted space within the main body of the copying machine.

Next, -〇〇 is a duplex unit connected to the copying machine main body 100, and the transfer paper ejected from the copying machine main body 100 in normal mode (single-sided copy mode and when sorter mode is not specified). In the double-sided copy mode, the transfer paper that has been discharged after recording on one side is fed back to the copying machine main body 100 again. Further, when the sorter mode is instructed, the transfer paper discharged from the copying machine main body 100 is transferred to a sorter 30 (described later).
It operates to transport it to 0.

In the double-sided unit) 200, 20/ is a transport path switching lever, and when the normal mode is instructed, this lever 20/ is set to the solid line position shown in the figure, and the paper is ejected by the roller pair p of the copying machine main body ioo. Transfer paper is deposited on top of the tray. On the other hand, in the double-sided copy mode, the switching lever 20/ is rotated about the shaft 202 to the position shown by the broken line. Here, a guide 203 is disposed below the switching lever 20/, and in conjunction with the switching lever 20/, the guide 203 is rotated about an axis 20'l to the position shown by the broken line. As a result, the transfer paper discharged from the pair of rollers is guided by the guide λ03 and conveyed toward the pair of conveying rollers 2O3. , 206 is a conveyance path switching cam, which is set to the solid line position shown in the figure when transfer paper on which one-sided copying has been completed is conveyed in the double-sided copy mode. That is, the transfer paper on which one-sided copying has been completed is guided to this cam 20≦, and the conveyance roller,! 07.

Transport to joy. Further, the transfer paper is transported by transport rollers 207° 20Ir and 209 to the intermediate tray 21.
Store it in 0. Here, 21/ is a static eliminator placed between the roller 209 and the intermediate tray 210, and removes static electricity from the transfer paper stored in the intermediate tray 210.

This prevents the transfer paper re-fed from the intermediate tray 210 from being fed in duplicate due to the action of static electricity.

When back side copying is instructed, the transfer paper stored in the intermediate tray 210 is re-fed by the paper feed roller 2/2. Furthermore, it is transported by a pair of transport rollers, 2/3, and discharged from the duplex unit (200), and sent to the duplex transport section J, 2 of the copying machine main body 100. Next, the transfer paper sent to the transport section r, 2 is transferred to a transport belt 3 stretched around a drive roller, rtI.
and is conveyed toward registration rollers rB by feed rollers lrS. Here, conveyance of the transfer paper is stopped before the leading edge of the transfer paper hits this registration roller. In this state, the skew of the transfer paper is corrected by rotating only the roller lrj and bringing the leading edge of the transfer paper into contact with the registration roller lrJ. Next, the registration roller ram is rotated at a predetermined timing, and the transfer paper is placed between the rollers 3. It is fed toward the roller pair g via r7. Furthermore, transfer the transfer paper between rollers
It is conveyed by a roller pair 27 via r. Here, ssy
3. is a sensor for detecting the leading edge of the transfer paper; When the leading edge of the transfer paper conveyed through the transfer paper 7 is detected, the movement of the optical system is started based on the detection output. The subsequent operation is the same as in the case of single-sided copying described above, in which recording is performed on the back side, and the paper is ejected to the outside of the copying machine 100 by a pair of ejection rollers ψ.

Here, the transfer paper that has been copied on the back side is transferred to the copier main body io.
At the time of discharge from o, the conveyance path switching lever ro
i is returned to the solid line position shown in the figure, and the transfer paper is discharged onto the paper discharge tray. In the double-sided unit) 200, 2/II is a transfer paper storage box, and when the sensor 5S20/ detects that the transfer paper remains in the intermediate tray 210 at the start of double-sided recording, the drive roller 2/II is ! ; , Rotate 2/l to storage box 2/Il
Eject the transfer paper.

Next, 300 is a sorter that distributes and stores the transfer paper after recording is completed, and when conveying the transfer paper from the copying machine main body 100 to the sorter 300, a conveyance path switching lever 20/and a conveyance path switching cam 20t are shown. Set it to the position indicated by the dashed line. As a result, the transfer paper discharged from the main body 100 via the roller pair ψ is guided by the guide 203, reaches the roller pair 2O5, and is further guided to the rear cam 20B via the roller pair (13) 20K. , conveyance roller pairs 220 and 221 in order to reach the sorter 300. In the sorter 300, 30/ and 302 are the left discharged paper storage tray group and the right discharged paper storage tray group, respectively. Each tray 3o/-m, 30.2-rn (m = /
, 2.3.

) is provided with a bin shift roller 303 and a guide cam (not shown), and the bin shift roller 303 and guide cam are driven to transfer transferred paper to a predetermined storage tray. Store it. 3011.

3O5 is an entrance roller provided at the entrance of the transfer paper sorter;
0B is a transport path switching cam, and 307 and 30g are a pair of transport rollers. When the conveyance path switching cam 30t is set to the solid line position shown in the drawing, the transfer paper conveyed via the entrance rollers 3011 and 303 is guided by this cam 30t and conveyed to the conveyance roller pair 307, and then further transferred to the conveyance roller pair 307. 307. It is stored in a predetermined storage tray 30/-m straddling 302-m via the transport roller pair 3 (H) and the bin shift roller 303.

Next, 310 is a transfer paper reversal control unit, and transport rollers 3//, 3/2, 3/3, 3/ll, 3/!
; , 3/l and (/l) and a conveyance path switching lever 3/7. This reversal control section 31
0 controls whether the orientation of the transfer paper stored in the storage trays 301-m and 302-rn is face-up or face-down. Usually the main body io.

When single-sided copying and sorter mode are instructed in , the transfer paper on which single-sided copying has been completed is ejected from the main body 100 with the recording side facing upward.In the sorter 300, a detection sensor SS provided near the entrance section ,?0/ detects the leading edge of the transfer paper, sets the conveyance path switching cam 30B to the solid line position shown in the figure, conveys the transfer paper to the storage tray group 30/, and then transfers the transfer paper to the top of the storage tray group 30/. The transfer paper is sequentially stored face down, that is, with the recording surface facing down, from the upper storage tray 30/-/ to the lowermost storage tray 30/-m.The transfer paper is stored in the lowermost storage tray 30/-m. After that, the transfer paper is stored in the tray group 302 on the right side of the figure.Here, if the conveyed transfer paper is stored in the storage tray group 302 as described above, the transfer paper is in a face-up state, that is, with the recording surface In this case, the order of the transfer sheets stacked on each storage tray (15) 30.2-/~302-Tn will be reversed to the order of the originals.Therefore, In order to avoid such inconvenience, when storing the transfer paper in the tray group 302, the transfer paper is transferred to the tray group 302 via the reversal control unit 310.
2 and place the transfer paper face down in the tray 30.
2-/~302-m.

For this purpose, in this embodiment, when the trailing edge of the m-th sheet of transfer paper is detected by the sensor 5S30/, the cam 30B is switched to the position indicated by the broken line in the figure, and the (m10/)th sheet to be conveyed next. The transfer paper is conveyed in the direction of arrow 320.

At this time, the lever 3/7 is set to the solid line position shown in the figure, and the conveyed transfer paper is transferred to the conveying roller 3/7! ;.

31 Guide B. By rotating the transport roller 3/3 clockwise, the transfer paper is transferred between this roller 315 and the roller 3/1. It is held between the two and conveyed downward as shown in the figure. Conveyance roller 31S
As shown in the figure, there is a trailing edge detection sensor 5S3 near the transfer paper.
02 is provided, and by detecting the rear end of this sensor 5S302, the roller 31S is stopped and immediately reversed.
That is, rotate it counterclockwise.

Furthermore, the detection output of this sensor 5S30.2 causes the lever (/4) 3/7 to be switched to the position shown by the broken line in the figure. Due to the peeling, the transfer paper starts to be conveyed from the rear end side in the direction of arrow 32/, and passes sequentially through rollers 3/3, 3/g, rollers 3//, 3/2, and roller pairs 307 and 301 to the tray group. I am guided to 302.

In this way, the transfer paper is conveyed from the rear end side to the tray group 302, and the transfer paper is sequentially stored from the uppermost storage tray 30.2-/ to the lowermost storage tray 302-m.

At this time, the transfer paper can be stored in each tray 30.2-/-302-m in a face-down state with the recording surface facing down. Incidentally, when storing the transfer paper in the storage tray group 30/302 in a face-up state, the operation described above may be reversed.

Here, the conveyance state of the transfer paper during the recording and storage operation when the sorter mode is instructed during double-sided copying in the book mode will be described with reference to FIG.

First, when making a predetermined number of double-sided copies of the same original in book mode, place the original OB/ on the original placing table/, as shown in the figure, and then feed it from the cassette or (/7) deck I. Recording is performed on a predetermined number of sheets of transfer paper. Now, if we assume that the bottom side of the transfer paper stored in the cassette deck 21 is the front side and the top side is the back side, the image of the original OB1 is recorded on the front side of the transfer paper and transferred to the intermediate tray.
Store it in 210 as is. Next, the λ-th original OB, 2 is placed on the placing table/, and recording is started. At this time,
Transfer paper is fed from the intermediate tray 210, and an image of the original g40B, 2 is recorded on the back side thereof. In this way, the transfer paper on which recording has been completed on both the front and back sides is conveyed from the copying machine 100 to the sorter 300 with the back side facing up. When the number of recorded sheets is m or less, the cam 30≦ is controlled to guide the transfer paper to the corresponding storage tray group 30/, and as shown in the figure, the storage tray is placed face-up with Table 1 facing upward. 3
0/-/ to 3o/-m-! Store them sequentially with z. However, when the number of recorded sheets exceeds m sheets, the cam 306 transfers the transfer sheets from the (m+/)th sheet to the reversal control section 31O.
is led to the storage tray group 302 via the storage tray group 302. As a result, the transfer paper can be stored in the storage tray 302-/-30.2-m in a face-up state similarly to the m-th sheet 1.

(7g) Note that the clock pulse DGK that controls the above-mentioned recording operation at each point in time is taken out from a sensor that optically detects the clock point of the clock board go that rotates with the rotation of the drum l. Still, SS/ is cassette number 0. A sensor SS, 2 is used to detect paper feeding mistakes in the transfer paper fed from the deck 2/, and detects jams and skew of the transfer paper fed towards the photosensitive drum g via the pair of rollers. A sensor for detection, S83, is a sensor for detecting a jam of the transfer paper discharged from the fixing unit 3S, 5StI.
SS5 is the sensor installed in the original light section to determine the timing of feeding the transfer paper, and SS5 is the AF sheet original insertion table SS.
The sensor that detects when the SS is set at the solid line position shown in the diagram is this sheet document insertion table! ! i Sensor 1.83 for detecting the presence or absence of sheet original O8 on top
A sensor 7 detects a jam in the sheet original O8 which is discharged onto the tray 7/ after exposure.

Furthermore, ss and r are transfer paper detection sensors arranged between the roller 7 and the roller pair g, as described above, and the detection output of this sensor sg causes the optical system, which is the scanning member for exposing the original, to be activated. The timing of the light is determined at the start of movement of and b. As shown in the figure, SSq is a transfer sheet detection sensor disposed near the conveyor belt of the conveyor section 2, and detects the leading edge of the transfer sheet that has been conveyed from the intermediate tray 210.

Here, in this embodiment, sensors SS/, S are used as means for detecting the transfer paper before recording is performed on one side or both sides.
Reflective sensors are used for S, 2, SS, f, and 88q, and these sensors are arranged so as to always detect the blank surface of the transfer paper that is to be recorded.

In other words, in a reflective sensor, generally, as shown in Figure 3, the light LR emitted from the light emitting part '10/ of the sensor body and reflected by the transfer paper P is received by the light receiving part '02. It is determined that the transfer paper has been detected.

However, during double-sided copying, the sensor tto is set so that the already recorded side of the transfer sheet re-fed from the intermediate tray 210 becomes the detection surface.

If this is done, the black portion of the recording surface is irradiated with the light emitted from the light emitting section '10/'10/', and a problem arises in that one reflected light cannot be obtained at the light receiving section tI02. Therefore, it is necessary to ensure that the detection surface of sensor qoo is always the blank surface of the transfer paper. FIG. 3(B) shows an example of the circuit configuration of this type of reflective type upper sensor, where LED is a light emitting diode as the light emitting part 'AO/, and PT is a phototransistor as the light receiving part 'A0.2. be.

Next, the controls for controlling the operations of each part of the apparatus of the present invention are configured in the form of a microcomputer, as shown in Figure 1.As is well known, microcomputers include read-only memory ROM, random memory, etc. Equipped with access memory RAM and arithmetic processing unit ACG.
) A-F and output ports ((~L) are provided, and each control output is taken out from the output ports G-L. As shown in FIG.
~SSq, 5S101゜SSj□/etc. are connected to the motor M1 and the solenoid SD, which are driven by each control output signal.

Loads such as latch circuits LT are connected, and each of these loads is driven via an amplifier as shown in FIG. S (B).

(2/) The recording control operation of the present invention will be explained below with reference to the flowchart shown in FIG. 7 and FIG.

Turn on the power switch (not shown) of the copying machine main body ioo and perform an initial reset operation of the control unit C0IJ in step SO.Next, proceed to step S/, and manually control the keys for recording conditions such as the number of sheets to be recorded and their display control. Next, in step S2, it is determined by the limit switch of sensor SSj whether or not the sheet original insertion table 5S has been set by the operator for sheet copying, that is, whether it has been set at the position shown by the solid line in the first figure. If the flag F/AF has been set, the process moves to step S3, and the flag F/AF is set; if it has not been set, the flag F/AF is reset in step 83', and the process moves to step S<Z.

In step S+, it is determined whether or not the sorter 300 is instructed to be in the sorter mode. If it is instructed, the flag F/sorter is set in step St, and if it is not instructed, the F/sorter is reset in step SS'. Then move on to step $6. In step sg, it is determined whether double-sided recording has been instructed and the mode is in double-sided copy mode, and if it is double-sided copy mode, flag F/duplex is set in step S7.
If not, the flag F/both sides is reset in step S7' and the process moves to step Slr.

In step S, there is a stop mode, that is, no paper,
Determine whether or not there is a state in which copying is not possible due to developer capacity, etc. If the stop mode is selected, the process returns to step S/, and if the stop mode is not selected, the process proceeds to the next step S9. Step S9
Then, it is determined whether the copy button has been pressed and copy start has been instructed.

If the copy button is not pressed, the process returns to step S/, and if it is pressed, the process moves to the copy cycle starting from step SIO. The above-mentioned steps S/ to S9 are a standby cycle for preparing for copying.

Next, in the copy cycle, first, a recording operation when double-sided copy mode and sorter mode are instructed in book mode copying will be described.

As described above, when the copy button is pressed in step Sq, the process moves to step SIO, where the main motor, high voltage transformer, etc. of the main body 100 are turned on. Next step S//
Then, the flag F/sorter is determined, and if it is in the set state, the process moves to step S/2, where the sorter 300 is driven and the paper discharge switching lever 20/ is rotated to the position shown by the broken line in the first figure to set it. If it is in the reset state, the process directly advances to step S73. In step S/3, the flag F/
Both sides are determined, and if the flag F/both sides is set, the process moves to step S/4Z, and if it is reset, the process jumps to step S20. Since the flag F/both sides is now set, the process advances to step S/l. Step S/
In 4Z, the unit 200 is driven and the conveyance path switching cam 20
6 to the solid line position shown in the first figure, and then press the copying machine main body 10.
A conveyance path is formed to guide the transfer paper discharged from 0 to the intermediate l/ray 210. Next, in step S13, it is determined whether to copy the front side or the back side of the transfer paper.

(Refer to FIG. 2 for the front and back sides of the transfer paper) In double-sided recording, the front side is copied first, so the process moves to step SlB. In step S16, the intermediate tray,
210, it is detected whether the previously copied transfer paper remains, and if no transfer paper remains, step S is performed.
If there is any transfer paper remaining, the process moves to step S/7 and the drive roller 2/! ; , , 2#
to move the transfer paper in the intermediate tray 210 to the storage box 2/
Have the paper delivered to Hiro. The paper ejection operation is continued until all the transfer sheets in the intermediate tray 210 are ejected.

Next, in step 5llr, it is determined whether sheet mode copying is to be performed. In the present invention, book mode copying is instructed and the flag F/AF is in the reset state, so the process moves to step S/q, and further moves to step S20 along the flow of l' YES J. In step S20, feeding of transfer paper is started from the designated cassette or deck 2/, and at a predetermined timing, the original illumination lamp 3 is turned on to start exposing the original, and copying is performed on the surface of the transfer paper. . In step S, 2/, it is determined whether the device is in stop mode. If it is in stop mode, [YE
Jump to step StO along the flow of sJ. If not in stop mode, proceed to step 82.2;
Compare the preset number of copies and the number of copies that have actually been copied, and if they match, select 1'-YES.
Jump to step StO along the flow of J. However, if they do not match, the process advances to step S23. In step S23, it is determined whether there is a sorter instruction, that is, whether the flag F/sorter is set. Since the flag F/sorter is now in the set state, the process moves to step S2&. In step 52tI, sorter 3
A flag F/inversion is determined to determine whether or not to drive the 000 inversion control unit 310. Normal flag F/inversion is in reset state, step S2! Move to '. Step S
From J', step SΔ' along the flow of [YES j]
Proceed to. Since the flag F/both sides is now set, the process advances to step S27, and the transfer paper on which the front side copy has been completed is stored in the intermediate tray 210. Next, in step 821, it is determined whether the number n of transfer sheets conveyed into the sorter 300 is equal to the number m of sheets on the left storage tray 30/. At the time of surface copying of the transfer paper, the copy paper that has been copied is stored in the intermediate tray 210 and is not conveyed to the sorter 300, so n=o. Therefore, from step S2t INO
”, the process returns to step S20 again. After performing front side copying until the desired number of sheets is reached in this manner, the process jumps from step S22 to step SAO. In step S/O, a well-known post-rotation cycle (details are omitted) is performed, and then the process returns to step S/ via step S4/, and back side copying is started by manual keystroke.

In back side copying, when the process advances to step S/9, the process jumps from step S/9 to step SqO.

In step sqo, the paper refeed roller 21. ! is driven to sequentially re-feed the transfer sheets on which front side copying has been completed in the intermediate tray 210 at a predetermined timing. Next, step SI
1/, it is determined whether the sensor 339 provided in the duplex conveying section 12 detects the transfer paper. Step SII/
If it is determined that the transfer paper is detected in step SI, step SI
Moving to step 1, the registration roller g6, which had started rotating at the same time as the transfer paper refeeding operation, is temporarily stopped. Thereafter, only the reversing roller r5, which is in contact with the registration roller 1B which has stopped the leading edge of the transfer paper, is rotated for a predetermined period of time. This corrects the skew of the transfer paper that occurs during conveyance. Next, in step S'A3, the registration roller r6 is driven at a predetermined timing to start transporting the transfer paper.

In step SRI, it is determined whether the sensor SS has detected the leading edge of the transfer paper being transported in this manner.

If the sensor SS detects the transfer paper, step 5lI
Set the flag F/S1 at step s, and proceed to step 5t.
Proceed to I6. In step 5IIz, the optical system is started, the document illumination lamp 3 is turned on, and the back side of the transfer paper is copied. Next, in step Si it is determined whether or not the stop mode is present, and in step s11. At step r, it is determined whether or not a predetermined number of copies have been completed. Next, in step S+9, flag F/sorter is determined. After flag F/sorter, all transfer papers are stored in paper discharge tray F/. In this explanation, since the flag F/sorter is set, the process moves to step SRI.

Step ssi is 5 from step S and 21I shown in the third diagram.
The subroutine 5UBA is programmed up to 311. In subroutine 5UBA, step 8.
24Z detects that the 7-lag F/inversion is in the reset state and proceeds to step 5211'. Step S2t'
So, the transfer paper is currently in the back copy cycle with the note "NO"
Proceed to step 8.23 following the flow.

In steps S and 2S, the conveyance path switching cam 301 is set to the solid line position shown in the first figure, and the transfer paper is conveyed to the storage tray group 30/. Next, in step S2t, the sensor 5
When the F330/ detects the trailing edge of the transferred transfer paper, the controller (EON) counts the number of transfer papers that have been transferred to the sorter 300.Next, in step S27, the transfer paper is transferred to the storage tray group 30/ Top tray J□/-/
Then, as shown in the second diagram, store it face-up with the front copy side facing up.

Next, in step S-r, it is determined whether the number of transfer sheets stored in the sorter 300 has reached the number m of the tray group 3o/(29). If the number of stored transfer papers reaches m and is still available, the process advances to step S32. Step S32
, the flag F/S is determined, and if it is in the reset state, the process jumps to step SSS, and if it is in the set state, the process proceeds to the next step S33, where it is determined whether or not the sensor SSg has detected the transfer paper.

If the detection state is detected, the process jumps to step SSS, and if not, the registration roller 6 is stopped and the flag F/sr is reset in step SH. Next, step S
In Sj, the sensor 5S20/disposed on the intermediate tray 210 is
Then, it is checked whether there is any transfer paper remaining in the tray 210. If the paper remains, the process returns to step SDAO; if the paper does not remain, the paper feed roller 2/2 is stopped in step Sj-B, and the process returns to step S4Z/. As described above, repeating the loop from steps S to SSS, copying the back side onto the transfer paper, and transferring the transfer paper on which the back side copy has been completed to the uppermost tray 30 of the tray group 30/
It is stored sequentially from / -/ to 30km. When transfer paper is stored in the lowest tray 30/-m, the number of sheets stored is m.
Therefore, the process proceeds from step 8.21 to step 8.29 following the flow of i YES j, and sets the flag F/inversion.

In the subsequent loop, the process proceeds from step S21/ to step S30, and when the sensor 5S30/ detects the leading edge of the transfer paper, the cam 30/ is activated in step S31.

is set to the position shown by the broken line in the first figure, and the lever 3/7 is also set to the position shown by the solid line shown in the first figure. Furthermore, the conveyance roller 3
/S to start rotating clockwise. As a result, the transfer paper is guided by the cam 306 and transferred to the reversal control section 310.
is conveyed to the arrow 3 shown in the seventh figure by the conveyance roller 3/3.
20 directions (step 531). Next, in step S33, when the sensor 5S30.2 detects the trailing edge of the transfer paper, the roller 3/3 is immediately stopped in step S3'l, and the lever 3/7 is set to the position shown by the broken line in the first figure. . Thereafter, the roller 315 is reversed to convey the transfer paper from the rear end side in the direction of the arrow 32/ shown in the first figure. The transfer paper thus sent to the storage tray group 302 via the reversal control unit 310 is stored in the tray 30.2-/ in a face-up state (see FIG. 2).

In the same manner, the transfer paper is transferred to the tray 302-. 2.302
-3°... are stored sequentially.

The above operation is repeated, and when it is detected in step Sat that the back side copying of a predetermined number of sheets has been completed, the process proceeds to step S6.
0, the copying machine main body Zoo performs well-known post-rotation control, and the sorter 300 stores the last transferred sheet in a predetermined storage tray. After that, the process proceeds to step S4/, and the driving of each part is stopped.

The above is the copy operation when double-sided copy mode and sorter mode are instructed in book mode copying.Next, the operation when double-sided copy mode is instructed in book mode copying will be explained.

In the figure, after a standby cycle from steps SO to Sq, flags F/AF and F/both sides are set (steps S3 and 87). Next, Stella Hideo
When entering the following copy cycle, it is determined in step S/I that the flag F/AF is set, and the process moves to a sheet mode copy cycle starting from step S70 shown in FIG. Here, the document to be sorted O8 is placed on the mounting table S with the side to be recorded facing down, and in step S70, the transfer paper is fed from the cassette 2!7 or deck of the main body ioo, and the The original O8 placed at the lowest position on the placing table SS is conveyed by a pair of rollers St. When the original O8 reaches a predetermined position on the guide glass O3, exposure is started. The exposed original image is copied onto the surface of the fed transfer paper. The original O8 that has been exposed is discharged onto the tray 71. Next, in step S7/, the sensor SS B detects whether the document O8 is on the mounting table jj. If there is a manuscript oS, step 7.
At step 2, the conveyance path switching lever 20/ is set to the position shown by the broken line in the first figure. As a result, in step S7J, the transfer paper on which the front side copy has been completed is stored in the intermediate tray 210. Next, the process proceeds to step Sl, where the transfer paper stored in the intermediate tray 210 is re-fed, and the sheet original O8 on the mounting table 3j is moved through the guide glass t3 which is an exposure section.
It is transported towards the target and exposed. The exposed original image is copied onto the back side of the fed transfer paper. Next, in step 873, the conveyance path switching lever 20/ is set to the solid line position shown in the first figure, and the transfer paper on which the reverse side has been copied is discharged to the paper discharge tray 4t/.

In this way, the loop of steps 870 to S75 is repeated to perform double-sided copying, and in step S7/, the loading table is removed. ;When it is detected that the original O8 is missing in S,
Proceed to step StO along the flow of [0]. In step S60, the copying completed transfer sheet is discharged to the paper discharge tray, and the photosensitive drum r is then controlled to rotate later, and the process moves to step S4, where the driving of each part is stopped and the copying operation is completed.

FIG. r shows a time chart of each part in the above-described recording operation when double-sided copy mode is instructed in book mode copying.

As explained above, according to the present invention, a recording member reversal control means is provided on the conveyance path that leads the recorded recording member to the sorter, so that the recording member can be turned face-up or face-down. Since it can be stored in the sorter, the pages of the recorded members stored in the sorter can be aligned regardless of the recording mode.

[Brief explanation of the drawing]

FIG. 1 is an internal configuration diagram showing an example of the double-sided recording device of the present invention;
Figure 1 is a diagram for explaining the conveyance state of the transfer paper during the recording operation, Figure 3 (c and (B)) is an explanatory diagram and circuit diagram of the paper detection operation of the paper detection sensor, and Figure q is a diagram for explaining the paper detection operation of the paper detection sensor. A block diagram showing an example of a control section for controlling the recording operation of the double-sided recording apparatus of the present invention; FIGS. 6 and 7 are flowcharts showing the recording operation of the double-sided recording apparatus of the present invention; FIG. Yes. 100...Copying machine) Document placement table, 2...Cover, 3...Lamp for illuminating the original, ge, j...Movable mirror, 6...In-mirror lens, 7...Mirror, r ...photosensitive drum,
9... Shadow part, lθ, /ri... Static eliminator,
// , /! ;...Lamp, /λ...-charger, /3...Illumination unit, /6...Developer,
17...Container, 1g...Developing roller, /9
...Doctor blade, ...Cassette, ...Paper feed deck, sword, 23...Paper feed roller, knob, 251%, 27, J, 29, M
, ,? 7... Roller pair, 3θ... Transfer charger, 3
/... Separation static eliminator, 32... position,
33...roller, 3g...bell), 3! ;... Fixing unit, 3g... Static eliminator, y... Guide, G θ... Ejection roller pair, l/... Tray, G λ.
・・Blade cleaner, invasion′・・edge part, j/・・・・
Auto feeder (A, F), 5.2... Lamp for document illumination, 33... Fixed mirror, sIl... Movable mirror, SS... Sheet document insertion stand, j B... Separation parallel feed roller versus, ! ;r, J7...Guide, O...Sensor, 4/, Correction...Roller pair, Otsu3...Guide glass, 69...Ejection roller pair, 7/...Tray,
72, 73...Axle, 1.2...Double-sided conveyance unit, 1
3... Drive roller, rll... Conveyance belt, 8... Feed roller, J/l,... Registration roller, r7...
Roller, U...Roller pair, OB, O3...
・Manuscript, SS/ ~839, 5S20/, 5S30/,
5S302, 1100 =-Seph f, L, L
R...Light, tIol...Light emitting part, l1
02... Light receiving section, LED... Light emitting diode, PT
...Phototransistor, M...Motor, SD...Solenoid, LT...Latch circuit. 200...Double-sided unit, 20/...-transport path switching lever, 202, 20'l.
...Axis 1.203...Guide 1. 20! ;, 213, 220, 2 pieces... Conveyance roller pair 1.2ot-conveyance path switching cam, 207, 201, 20
9-=conveyance roller, 210... intermediate tray, 2//...
・Static eliminator, J/, 2...Paper feed roller 1.2/4'・
...Transfer paper storage box, 21! ; , 216... Drive roller. 300... Sorter 30/, 302... Storage tray details, (,?7) 30/-m, 302-m- Storage tray, 303...
・Bin shift roller, 30'l, 30! ;... Entrance roller, 301.・・・
- Conveyance path switching cam, 307, 301--Conveyance roller pair, 310...Reversal control section, 3//, 3/K, 3/3, 3/G, 3/Even, 3/O... Conveyance roller, 31'l... Conveyance path switching lever, 32
0, 32/...arrow. Patent Applicant Canon Co., Ltd. (3g) Special Leap Showa 58-1250GO (14) Japanese Patent Application Publication No. 58-125 (160 (15)

Claims (1)

[Claims] In a recording apparatus having a sorter function for distributing and storing recorded members in a sorter, a recording member reversal control means is provided on a conveyance path that leads the recorded members to the sorter, and the recording member is rotated. 7. A recording device characterized in that the recording device is stored in the sorter in either an eight-up or face-down state.