JPS62121149A - Recorder - Google Patents

Abstract

PURPOSE:To prevent occurance of jam and to achieve recording on various sizes of sheet by selecting an optimum sheet according to a set original size and specified variable power and carrying the sheet in a proper carrying path for recording operation. CONSTITUTION:An editor 70 is located on an original pressing plate 34 to be used for selection of an area specification, multiplex mode or the like. A plurality of cassettes can be installed and an optimum sheet cassette can be automatically selected according to the original size and variable power. A sheet refeeding mechanism for perfecting copy or multiplex copy comprises two systems of a second feeding unit 23 and an intermediate tray 40, and an optimum system is selected by a program according to the sheet size and number. The second feeding unit 23 is used for perfecting copy and multiplex copy, having some degrees of freedom of sheet size, while the intermediate tray 40 is suitable for copying of a large number of sheets, with the sheet size fixed. Therefore, proper operation can be performed according to the kind of sheet.

Description

[Detailed description of the invention] [Technical field] The present invention relates to conveyance control of recording sheets in a recording apparatus.

[Prior Art] Conventionally, in a recording device that has an intermediate tray for temporarily storing recorded sheets, depending on the type of sheet, for example, the size, there are cases where the intermediate tray cannot be used or jams, and double-sided or multiple recording is not possible. The drawback was that it could not be done.

[Information] In view of the above two points, the present invention is directed to transporting the C3 sheet along an appropriate transport path depending on the type of the C3 sheet and performing desired recording processing.

[-1 example] Embodiments of the present invention will be described in detail below with reference to the drawings.

1 is a schematic block diagram of a copying machine according to the present invention, in which the main components and various sensor positions are shown at 5l-S24.

In the figure, 1 is the main body of the copying machine, 2 is the image forming section centered on the photosensitive drum 7h 18, and 7.8 is the image forming section, each with a different color (for example,
This developing device stores toner of red and black colors, and selectively contacts the drums L and 18 of the two colors. 3 is a paper feeding unit for feeding transfer paper SH into the machine, which includes a cassette 9 that can be detached from the main body, their paper feeding rollers 10 and 11, and sensors S9 to
l 2 , S22.23. Reference numeral 4 denotes an optical system including a lens system for exposing and scanning a document and forming an image on the photosensitive drum 20, and is driven by an optical motor 19 in the direction of the arrow.

25 is a fixing device, and 23 is a second paper feeding section which will be described later.

40 is an intermediate tray.

Figure 2 is a control block diagram, lot is the main switch,
DCP is a DC power supply that supplies power to the control unit 60, etc., and S is the sensors shown in FIG.

100 is an operation unit, 61.62 is a control unit for controlling the AC load, and a lamp 24. AC load of heaters 21 and 22, 63
is a motor control unit that controls the main motor 18 and the optical motor 19, and HVT is a motor control unit that controls the main motor 18 and the optical motor 19.

Charger 13.15.16 and developer 7.
Supply high pressure to 8. 66 is a load such as a solenoid, clutch, fan, etc.; 67 is a document processing device; 68 is a sorter; 70 is a coordinate reading device (editor); and 80 is a buzzer.

Next, the operation will be explained.

When the power switch 101 is turned on, first, the heaters 21 and 22 in the fixing device 25 generate heat.

Wait until the fixing roller reaches a predetermined temperature that allows fixing (wait state). When the fixing roller reaches a predetermined temperature, the main drive motor is energized for a certain period of time, and the photosensitive drum 18. Drives the fixing device 25, etc.

The rollers in the fixing device 25 are made to have a uniform temperature (weight release rotation). After that, stop the main motor 1811. Standby in copyable state (standby mode). Here, the main motor 18 includes a photosensitive drum 20, a set stone device 25, a developing device 7.
8 and various transfer rollers. Then,
When a copy command is input from the operation unit 100, a copy operation starts.

(1) Description of image formation The main motor 18 rotates in response to a copy command, and the photosensitive drum 20 starts rotating in the direction of the arrow. At the same time, high voltage is supplied to the primary charger 13 from the high voltage supply device HVT, and the photosensitive drum 20 is uniformly and The exposure lamp 24 is turned on to apply a load, the optical motor 19 is driven, and the original platen 5F is turned on.
The original placed in place is exposed and scanned in the direction of the arrow and projected onto the photosensitive drum 20. In this way, an electrostatic latent image is formed on the photosensitive drum 20. Next, this latent image is developed by developing device 7 or 8, and transferred: t'! The toner is transferred to the transfer paper SH at the 7Ii device 15 and separated from the photosensitive drum 20 at the separation charger 16. Next, the residual toner remaining on the photosensitive drum 20 is collected by the cleaner 6, and after the static electricity is uniformly removed by the erase lamp 28, the copy cycle is repeated again. At this time, unnecessary charges outside the image area are erased using a blank exposure lamp 14 (LED array) composed of LEDs. Also, as will be described later, LED array 1
4 is constructed by arranging a large number of LEDs, and can erase any location in the image. First developer 8. Second
The developing device 7 is brought into contact with the drum 20 with either side by a selection command from the operating section 100. In this embodiment, the first developing device 8 is filled with black toner and serves as the black developing device 8, and the second developing device 8 is filled with black toner.
The developing device 7 is filled with color toner to form a color developing device 7. Pressurization (contact) of these developing units to the drum 20 and release thereof are performed by the black developing unit release solenoid 31. This is done by the color developer pressure solenoid 30. When the black developer release solenoid 31 is turned on, the black developer 8 is released from the drum, and when the color developer pressure solenoid 30 is turned on, the color developer 7 is pressurized against the drum. Also, each developing station has a black toner sensor S1 in 7.8.
6. A color toner sensor 517 is arranged.

Further, a developing bias voltage is applied to the developing rollers 7-a' and 8-a of each developing device from a high voltage generator HVT. The conditions for this bias voltage are changed depending on when the black developer 8 and the color developer 7 are used in order to optimize the developing conditions for black toner and color toner. In addition, the sensitivity of the photosensitive drum may change as its durability progresses or changes in the environment occur, and in order to cope with this, the sensitivity can be changed by a command from the operation panel 100 (described later).

In addition, the copying machine of the embodiment can perform not only normal one-sided copying but also double-sided copying and multiple copying (described later), but the transfer paper once passed through the fixing device is 1.
Conditions such as the resistance value of the paper are changing, and in order to cope with this, the conditions of the high voltage applied to the transfer charger 151 and the separation charger 16 are made different between the first side and both sides or the second side during multiple copying. . These high voltage values for development, hazing, transfer, and separation are determined by commands from the control section 60.

The optical system 4 is reciprocally controlled by rotating the optical motor 18 forward and reverse via the motor control section 63 in accordance with commands from the control section 60 .

SL is an optical home position sensor that is stopped at this position during standby. S2 is an image tip sensor corresponding to the leading edge position of the original image.

Used for copy sequence control timing. S
3 is the limiter position (inversion position) at the time of maximum scanning. The optical system 4 reciprocates with a scan length according to the cassette size and copying magnification based on instructions from the control section 60.

(2) Transfer paper control In the paper feed section 3 in Fig. 1, S9.311 is as follows:
Upper and lower paper sensors, 510° and 512, respectively, are upper and lower glue lid position detection sensors, S22. S23 are upper and lower cassette size detection sensors, respectively.

From now on, the second and lower rows will operate in the same way, so 5
The paper feeding operation of the stages will be explained. First, when the cassette 9 is inserted, the size is read by the size detection sensor S22 and the size of the cassette 9 is identified.
The 0 paper out indicator is turned off, and the cassette size is selected and turned on. Next, when the copy operation is started by a copy command, the middle plate lifting clutch (not shown) is activated to the ONL cassette 9.
Raise the inner middle plate and raise the transfer paper SH. Transfer paper S
H rises, comes into contact with the paper feed roller 10, reaches a predetermined height, the tray lid detection sensor S10 outputs an output, and the clutch is turned to O.
At the same time as the FF is activated, the paper feed roller 10 is driven to supply transfer paper into the machine (described later). As described above, the transfer paper in the cassette is raised by the middle plate raising clutch, and thereafter the raised position is maintained, and the above-mentioned raising operation is not performed at the start of the first copy. Also, if the number of transfer sheets in the cassette decreases during continuous copying and the top surface of the transfer sheet SH falls below a predetermined position, turn the clutch ON in the same way.

Raise it to a specified height.

The transfer paper fed into the machine reaches the front end of the register S7, and since the registration rollers 12 are stopped, it forms an appropriate loop and stops. Next, in order to align the leading edge of the image formed on the drum 20-h, the registration roller 12 is driven by a timing signal from the optical system 4, and after aligning the leading edge, the transfer paper is sent to the transfer section 17. In the transfer section 17 , the transfer charger 15 transfers the image on the drum 20 to the transfer paper, and then the paper is separated from the drum 20 by the separation charger 16 and sent to the fixing device 2125 by the paper transport section 17 . Fixing device 25
, the surface of the fixing roller is controlled to a predetermined temperature by a temperature sensor (not shown) arranged on the surface of the fixing roller and a heater 21, the image is fixed on the transfer paper, and then the paper is discharged by the paper discharge sensor S4. It is detected and discharged out of the machine by rollers 26 and 27.

Next, manual copying will be explained.

When the manual tray 28 is moved in the direction of the arrow in the figure, the manual tray detection sensor S24 enters the ONL manual copy mode F. At this time, the middle plate of the cassette 9 set in the -H setting is automatically released from the raised position, and the transfer paper SH in the cassette is lowered.

Next, place the transfer paper on the manual feed tray 28, and in response to the copy start command on the operation unit 100, the manual feed lid clutch is driven in the same way as when feeding cassette paper, and the transfer paper set on the manual feed tray 28 is moved. , the sheet is raised, and after being raised, the sheet is fed into the machine by the sheet feed roller 10.

Next, in the case of multiple copying, the flapper 29 is switched to the position shown by the dotted line by the operation of an idler (not shown), and paper is fed and transferred.

1 minute? a. The fixed transfer paper passes through the path 33 and is sent to the second paper feed section 23. In the second paper feeding section 23, after the paper is detected by the i+12 pre-registration sensor S5, the transfer paper end detection sensor S6. Lateral positioning is performed using a lateral registration sensor S8 and a lateral registration alignment lever (described later).

Next, in response to a multiple copy command from the operating section, the second registration roller 37 sends out the image again to the registration roller 12 section. Thereafter, the paper is ejected to the paper ejection tray 32 in the same manner as described above.

Furthermore, during double-sided copying, the transfer sheet is ejected halfway through by the ejection roller 27 in the same manner as in the normal copying operation described above, but after the trailing edge of the transfer sheet passes the flapper 29, the ejection roller 27 is driven in the reverse direction. , the transfer paper is guided by the flapper 29 and introduced into the path 33 (described later).

This reverse drive is performed by a solenoid that controls forward and reverse rotation. The subsequent operations are the same as in the case of multiple copying described above. In this way, in the case of double-sided copying, the ejection roller 27
The transfer paper is taken out of the machine by the reverse drive of the roller 27, and is turned over and sent to the second feeding section. In the case of copying or double-sided copying, an intermediate tray 40 is used. As shown in FIG.
3 and a tray 53 for temporarily storing transfer paper in an intermediate state. In the case of multiple copying of a plurality of sheets, the specified transfer paper is partially ejected by the paper ejection roller 27 under the same control as for the 1st and 14th side copying of the above-mentioned one-sheet copying, and then the υ paper roller 27 By driving it in the reverse direction, it passes through paths 33 and 43 and is stored in the tray 53. After this operation is repeated and all of the first side is stored in the tray 53-, the paper feed roller 56 is driven for the second side by the next copy command via the path 59.23.

A two-sided copy is executed. On the other hand, in the case of multiple double-sided copies, the flapper 29 passes through the paths 33 and 43 from the fixing device 25 and is stored in the tray 53 using the same steps as in the case of single-sheet multiple copying. This is the same as the case of multiple copying described above, so it will be omitted.

(3) Explanation of the operation section The second operation panel 100 will be explained.

FIG. 3 is an external view of the operation panel 100.

What is 101 in the diagram? tI is a power switch that controls the power supply to the copying machine; 102 is a key that commands the operation of the sorter; 103 is a copy image mode selection key that allows you to copy a designated area in 6 different modes (image conversion modes); select. 104 is a point (x
Point keys (described later) for specifying 2 points in the direction and 2 points in the Y direction.

105 is a multiple key for selecting multiplex mode; 106 is a continuous copying key for specifying continuous copying which divides the copying area of original glass 5 into left and right halves and automatically makes two copies; 107 is for selecting double-sided copying mode. a double-sided key; 108 is a key for specifying the creation of a binding margin or border erasure at one end of the copy paper; 109 is a zoom key for specifying a magnification in arbitrary magnification steps, for example in 1% increments; 110 is a reduction key for specifying a standard reduction magnification; ill
is the key to select the same size copy.

113 is a key for selecting a cassette; 1114 is a key for adjusting the copy density; 115 is a density correction key for changing the copy density specified by the copy density adjustment key 114; )
This is implemented by controlling the lighting voltage of the original exposure lamp 24 and by changing the developing bias using the copy density correction key 115.

116 is a clear/stop key, which is used as a copy stop key while a copy operation is being executed.

117 is a copy key, 118 is a preheating key, 119 is a key to return to the standard mode, 120 is a color selection key, which switches the developing device 7.8, 121 is the length of the original and the desired value after copying. The asterisk key is used to input the length and select the magnification, and the number of copies is input using the numeric keypad at 122. Reference numeral 123 is an AE key for specifying automatic density adjustment mode, and reference numeral 124 is a key for specifying automatic paper selection mode for selecting the optimum transfer paper according to the original size and copying magnification.

125 is a key for specifying an automatic magnification selection mode that selects the optimum magnification according to the original size and the specified transfer paper size; 126 is a key for calling up the magnification set in memory;
Reference numeral 127 is a key for registering a magnification in the memory, and reference numeral 128 is a key for specifying an area to be registered when specifying an area or for calling up a registered area (described later). Also 131-164
is an LED display, and 131 is a display when using a sorter, and is an LE that displays sort mode and group mode.
D.

132 to 137 are LEDs that display the copy mode executed by combining the designated area with the color developer;
3, the LEDs 132 to 137 are sequentially selected. These copy modes will be described later. Reference numeral 138 indicates a specified area, and in this embodiment, three types of areas can be specified. 139 is an LED for displaying a dimension part to be registered when specifying an area; 140 to 142 are LEDs for displaying a copy mode regarding multiple copies; 140 is a multiple mode display for sequentially multiple copies each copy; 14
1 is a quick copy multiple mode display in which the copy area on the original glass 5 is divided into left and right halves and this is automatically copied multiple times in the color specified by the developer selection key 120; 142 is a quick copy multiple mode display that divides the copy area on the original glass into left and right halves Divide it into two developing units automatically7.
This is a progressive color multiplex display in which 12 colors are displayed by sequentially switching 8 to 12 colors. In this embodiment, the left half of the original copy area is copied in black using the black developer 8, and then the right half is copied in color using the color developer 7.

143 is a page continuous copy display that divides the original copy area into left and right halves and obtains two copies with one copy command.
145 to 147 are LEDs for displaying the copy mode for double-sided copying, and 145 is for copying each sheet sequentially to both sides. Double-sided mode display, 14
6 is a quick-copy duplex mode display which divides the copying area on the original glass 5 into left and right halves and automatically makes double-sided copies in the color specified by the developer selection key 120, and 147 uses RDF to make double-sided originals into double-sided copies. This is a double-sided display for copying. 148 is a mode display for shifting the original image relative to the transfer paper to create a binding margin; 149 is a white border mode display for erasing the edges of the transfer paper; 15
0 indicates no toner, no control counter, and a warning display indicating a jam.

151 indicates the location of a jam.LED 152 is an LED that lights up when calculating the magnification using the asterisk key 121.
D, 153 is an LED that lights up when the magnification display 154 is displaying the magnification, and 155 is an LED that displays the specified standard magnification mode, which is designated by the keys 110 and 112. 156 is an LED that displays what kind of cassette is used for copying, and 157 is an LED that displays the installed cassette. If A4 is installed in the lower row and the lower row is selected, 1.57 is A3.
A4 lights up.

156, the LED next to A4 lights up.

158 is the manual feed 1.1: LED that indicates which of the rows and lower rows is selected, and 159 is the L that lights up when there is no paper in the cassette or when the cassette is not installed.
ED, 160 is a copy number display LED, 161 is an LED indicating automatic density adjustment mode, 162 is a density display LED,
163 is a standby display LED that lights green when copying is possible and red when copying is not possible.

164 is an LED that displays the color of the specified developing device;
5 is a display indicating automatic paper selection mode, and 166 is an LED indicating automatic magnification selection mode. The out-of-toner indicator 150-1 displays whether or not there is toner in the developer designated by the developer change key 120. That is, when there is no black I/toner, the light is lit only when the black developer 8 is selected, and is off when the color developer 7 is selected. Conversely, the same applies when there is no color toner.

<Explanation of LEDI and no> Next, the LED array will be explained.

FIG. 4-1 is a diagram showing the LED array 14 and the drive circuit, and 60 in FIG. 5 is the aforementioned control section.

81 is five PNP transistors.

82 is connected to the anode of each LED intermittently, and 82 is connected to the anode of each LED.
A PN transistor is connected to the cathode of each LED as shown in the figure.

83 is a transistor. The LED array is composed of 124 LEDs, 124 LEDs, and the 124 LEDs are arranged in a line over the entire area of the drum 20 in the axial direction. Further, the length of the light emitting portion of these LED arrays is set to be longer than the maximum width of the transfer paper. In this example, L
Two LEDs at both ends of the ED array 14, 2. L
The EDs 123 and 124 are set to be longer than the transfer paper pile. Each LED is driven by four LEDs 1 and 2 at both ends of the LED array.

123 and 124 are driven statically by transistor 83, and the remaining LEDs 3 to 122 are driven by transistor 83.
1.82, it is lit by dynamic driving of a 5 x 24 matrix.

The LED array 14 is an LED to be lit by the control unit 60.
The timing is controlled and used for removing unnecessary charges on the drum 20 and erasing an image when copying a designated area.

Roughly speaking, 84 in the figure is a circuit for switching the power supply voltage to the transistor 81. FIG. 4-2 shows the LED array 14 and photosensitive drum 20.

This is an enlarged view. The LEDs in the LED array 14 are tram 2
Irradiate between A and B of 041. On the other hand, ζ 20 is rotating in the direction of arrow C. Let's consider the above-mentioned copy mode using area specification.

When erasing the area after point A on one column 20, the timing signal from the control unit 60 adjusts the position to point A and the LED starts to light up. That is, L shown in Figure 4-2
The LED lights up when the ED is at point A and point B. At this time, the product (energy) of the light and time received by the drum surface at point A and B. Therefore, the boundary between the erased part of the image and the image part becomes unclear because the charge cannot be removed sufficiently.Furthermore, when the LED changes from being on to being off, the boundary becomes unclear as well. To prevent this, the switching circuit 84 is driven at the point at which the LED starts to turn on and at the point at which it turns off.

dChange to a higher voltage +■2 than the normally used upper voltage +v1 Increase the amount of light emitted by the LED (strong lighting).

Furthermore, although this LED array is dynamically lit as described above, five digit signals (hereinafter referred to as DG
(referred to as T@) as one unit and synchronized with the above-mentioned strong lighting time. For example, in Fig. 4-3, before time To, DGT (δ+f OF F
and the LED is off. At time TO, when the lighting starts, five DGT signals sequentially turn on the ONI and LEDs. At this time, the switching circuit 84 receives a series of DGT signal generation time signals from the control section 60 and switches to one-strong lighting. This strong lighting time is an integral multiple of T and is appropriately determined depending on the spread of light from the LED array 14 and the rotation speed of the photosensitive drum.

Explanation of the editor I> Next, the editor will be explained. The editor 70 is installed on the original pressure plate 34h, and its configuration is shown in FIG.

The editor 70 includes one planar resistor for reading the positions in the horizontal direction (X direction) and the vertical direction (Y direction), and a pen (not shown) with a built-in switch that presses the surface of the editor 70 when inputting coordinates. and a switching circuit 90 that switches between the X direction and the Y direction when reading coordinates. The document is placed within the dotted line in the figure with the reference position aligned with the arrow position. The above-mentioned planar resistor is applied not only to the area indicated by the dotted line around the original, but also to the clear key 92. Memory key 91° Area copy mode key 93~
It also covers part 98. Here, the area copy mode keys 93 to 98 are the mode display 1 on the copy panel described above.
32 to 137. The clear key 92 is a key for clearing the specified area and canceling the area copy mode.
The memory key 91 is a key for registering a specified area. When a certain coordinate is input with a pen, voltage is applied between yt and yo since relay 901 remains OFF, and the control unit 60 inputs the coordinate in the Y direction as "i", which is equivalent to that shown in Fig. 5-3.
The voltage obtained by dividing the power supply voltage is read by DG-Y.First, the control unit 60 connects the relay 901 to ONL, and a voltage is applied between Xl and X0, which is equivalent to that shown in Fig. 5-2 and coordinates in the X direction. read in the same way. Based on the read coordinate data, the area coordinates are set and the key force is also determined.

Determine the signal from the editor and register the copy mode and area specification coordinates. Also, if copy mode is specified, the buzzer will be activated at 60m5. When inputting area coordinates, press the buzzer 3.
It is set to 0m5. This is to remind the user of the editor input. The buzzer does not sound if the user's input to the editor is not valid.

The area for inputting the coordinates of the editor area is 432x297
mm, but considering the error of the editor, the inside of the 9 area is 5
mm is the maximum or minimum value. That is, when specifying a point within 5 mm from the inside of the editor area, it is considered that a point 0 mm from the inside of the editor area has been specified.

Description of copy mode> Next, details of the copy mode will be described.

Mort 1. Single-sided original → double-sided copy (LED 145 lights up) As shown in FIG. 6(a), double-sided copies are obtained from two originals.

In other words, set original A on the original table and press the copy key 117.
Press to form an image on one side of the transfer paper, then set the B original on the document table, press the copy key 117, and form an image on the opposite side of the transfer paper.

゛Mode 26 Page continuous copy → double-sided copy (LED l
46 lights up) As shown in FIG. 6(b), double-sided copies are obtained from sides A and B of the spread document.

In other words, place the two-page spread original on the document table, and copy
When 17 is pressed, the A side is imaged on one side of the transfer paper, and then the B side is imaged on the opposite side of the transfer paper.

Mode 3. Single-Sided Original - Multiple Copy (LED 140 Is On) As shown in FIG. 6(C), multiple copies are obtained from two originals.

In other words, set original A on the original table and press the copy key 117.
is pressed to form an image on one side of the transfer paper.Next, the B original is set on the original table, and the copy key 117 is pressed to form an image on one side of the A original on which the image was formed.

Mode 4. Page continuous shooting multiplex (LED 141 lights up)
As shown in Figure 6(d), A of the two-page spread manuscript.

Obtain multiple copies from side B. In other words, when you set the original document on the document table and press the copy key 117, an image is formed on side A on one side of the transfer paper.

Subsequently, an image is formed on the B side on the same side of the transfer paper.

Mode 5. Continuous page color copy (LED14)
2 lights up) As shown in Figure 6(e), side A of the two-page spread document is copied in black and side B is copied in color to obtain a color multiplex copy.

This is a mode in which the B side is a color copy during page continuous shooting multiplexing. Also, side A may be a color copy.

Mote 6, fi area Color the color within the specified area.

A mode that makes the color outside the area black.

(LED 132 lights up) As shown in FIG. 6(a), the area is obtained by color copying the white color of the designated area and black copying of the color outside the area. When you set the original, specify the area, and press the copy key, the area within the area will be imaged in black on the transfer paper. Next, a color image is formed on the transfer paper outside the area. Alternatively, copying may be performed from outside the area first.

Mode 7: A mode in which the color within the specified area is black and the color outside the area is color.

(LED 133 lights up) As shown in FIG. 7(b), the area is obtained by copying the color within the specified area to black and copying the color outside the area to color. This is the reverse mode of mode 6.

Mode 8. A mode that colors the color within the specified area. (LED l 34 lights up) As shown in FIG. 7(C), the color within the designated area is color-copied. When a document is set, an area is specified, and a copy key 117 is pressed, an image is formed in color on the transfer paper within the area.

Mode 9: A mode that colors the area outside the specified area. (LED 135 lights up) As shown in FIG. 7(d), the color outside the designated area is color-copied. When a document is set, an area is specified, and a copy key 117 is pressed, an image is formed in color on the transfer paper in the area outside the area.

Mode 10. A mode that changes the color within the specified area to black. (LED 136 lights up) As shown in FIG. 7(e), the color within the designated area is copied to black. When a document is set, an area is designated, and the copy key 117 is pressed, an image is formed in black on the transfer paper within the area.

Mode 1" 11. A mode in which the color outside the specified area is made black. (LED 137 lights up) As shown in Figure 7 (f), the color outside the specified area is copied in black. Set the original. After specifying the area and pressing the copy key 117, the area outside the area will be imaged in black on the transfer paper.

Due to the mechanism of the copying machine, there are only two paths, so mode 1 to 7 in E and single copy.

You can only select one of page continuous copying, double-sided continuous copying, 5-sided original → double-sided copying.

For modes 6 to 11, if two or more are selected, the images will be inconsistent, so only one can be selected. Also, 8
~11 modes, binding key 148, frame erasing key 149
For the reasons mentioned above, you can only choose one.

When mode 5 to 11 is selected, color selection key 120
becomes invalid. This is because modes 5 to 11 also specify the color mode for copying.

Next, a case will be described in which a document feeding device (DF, ADF, RDF) is used when mode 1 or mode 3 is selected.

(1) In DF mode, when a document is set on the hill of the document feed table of t)F, the document is automatically fed and set at a predetermined position on the document table of the main body. Then, the copying operation for the first side is started, copying is performed under the set copying conditions, the transfer paper is stored in the intermediate tray 40 or the second paper feeding section 23, and the copying operation for the first side is completed. Then, the DF discharges the original.

Next, in the same manner as described above, when the original is set on the L of the DF's original feeding table and four originals are automatically fed, the main body starts the copying operation for the second side. At this time, the transfer paper is fed from the first
Intermediate tray 40 in which face copies have been completed and stored.
Moshi is performed from the second candy paper section 23. When the copying operation for the second side is completed, the DF discharges the original. Then, the series of copy operations is completed.

Also, set the original manually for the first side, and set the original in D for the second side.
Use F or use DF for the first side and DF for the second side.
Alternatively, the original may be set manually.

(2) When using ADF Place the original on the ADF's original feed tray.

When the copy key 117 is pressed, the original is automatically fed and ejected. When the first side of the document is completely fed, if there is no second side of the document, the transfer paper is ejected from the machine and the copying operation is completed. However, when there is only one original, it depends on the copy settings.

The transfer paper is stored in the intermediate tray 40 or the second paper feed section 23, and the copying operation for the first side is completed. Then, press the copy key 117 again.

Start copying the second side. At this time.

You can set the original manually or use the ADF.

(3) When the copy key 117 is pressed during RDF, the RDF counts the number of originals by circulating the originals set on the original feed tray. Then, if there is an odd number of sheets, the last original is made a one-sided copy.

Next, paper size regulations when modes 1 to 5 are selected will be described.

When making double-sided copies, depending on the size of the transfer paper, the second
There are cases where the paper feed section 23 and the intermediate tray 40 cannot be used. When the transfer paper size does not allow the use of the second paper feed section 23 and intermediate tray 40,! The copy operation is completed.

(1) When there is no intermediate tray 40 In the case of mode 1 and mode 3, the number of copies that can be set is l'' because originals must be replaced.

(2) When using the intermediate tray 40 In the case of mode 1 and mode 3, since originals must be replaced, the number of copies that can be set is limited to the number of sheets that can be loaded on the intermediate tray. However, when the paper size is unusable in the intermediate tray 40 and the paper size is usable in the second paper feed section 23, the possible number of copies is 111 I+. Also, when feeding transfer paper from the single manual tray, there is a possibility that transfer paper of different sizes may be loaded, so do not use the intermediate tray 40! do not have.

When using the intermediate tray 40 in a multiplex/double-sided copy mode other than mode 1 or mode 3, the number of copies that can be set is up to the number of sheets that can be loaded on the intermediate tray.

Explanation of jam processing> Next, jam processing will be explained.

If a jam occurs in a copy mode that does not use the intermediate tray 40 or the second paper feed section 23, clear the jam, press the reset button S15 (shown in the first diagram), and turn on the power switch 101 to resume copying. It becomes possible. Then, the state returns to the copy mode before the jam occurred. However, the number of completed copies is subtracted from the set number of copies and the remaining number of copies is displayed on the copy number display section 160. If the copy key 117 is pressed here, the remaining copy number is copied and the copying operation is completed.

If a jam occurs on the first side of the copy mode using the intermediate tray 40 or the second paper feed section 23, clear the jam, press the reset button 515, and turn on the power switch 101 to return to a copy ready state. Become. At this time, the con-mode is the same as when the intermediate tray 40 or the second paper feed section 23 is not used. If you press the copy key 117 here, the remaining number of copies will be copied, and the first copy will be copied.
Complete the face copy operation. In double-sided/multiple copy modes other than modes 1 and 3, the second side is then copied.In modes 1 and 3, when the copy key 117 is pressed after replacing the original, the second side is Perform a copy operation. Furthermore, if the stop key 116 or reset key 119 is pressed in the copy ready state after the jam has been cleared, the user determines that he/she wants to cancel copying of the first side.
The number of transfer sheets in the intermediate tray 40 is displayed on the number-of-copies display section 160, and the state is set to wait for the copying operation of the second side.

If a jam occurs on the second side of the copy mode using the intermediate tray 40 or the second paper feed section 23, clear the jam, press the reset button in S15, and turn on the power switch 101 to return to a copy-ready state. become. At this time, the copy mode before the jam occurs is restored.

However, the number of transfer sheets in the intermediate tray 40 is displayed on the copy number display section 160. Copy key 117 here
When pressed, the copying operation is performed until the intermediate tray 40 runs out of transfer paper. If there is no transfer paper on the intermediate tray 40 when the copying is possible after the jam is cleared, the copying operation is completed.

Note that when a jam occurs, even if the power switch is turned off, the data before the jam occurs is retained as a backup. Further, even if the front door (not shown) is opened, the power supply to high voltage and the like is cut off.

Explanation of tonerless processing> Next, processing without toner will be explained.

(1) In the case of black toner, copying is not permitted in copy modes 5, 6, 7, 10, and 11.

Even if no black toner is detected during copying, the toner out display 1 will be displayed until the set number of copies is completed.
50-1 is not displayed.

Also, when copying using an HD-F, multiply the number of remaining originals by the desired number of copies to get 100.
When the value is less than 1, the copying operation is not interrupted even if the absence of black toner is detected during copying, and copying is completed up to the last document. Furthermore, if the calculation result is 100 or more, the lack of toner may affect the image, so the copying operation is interrupted when the lack of black toner is detected.

(2) When there is no color toner, copying is not permitted in copy modes 5, 6, 7, 8, and 9.

During a copy operation, if the color toner runs out, the copy operation is interrupted at that point. This is because if the copying operation is continued, the mixture ratio of toner and carrier becomes abnormal, and the carrier of the color printer sticks to the drum, causing damage such as scratches to the ram. However,: 52 salary #1.8
When the transfer paper is stored in 823, it is a single copy mode, and since the amount of color toner consumed is small, a continuous copy operation is completed.

When copying using RDF, the value calculated by counting the number of remaining originals is multiplied by the value of the set copy mode, and if the value is less than a predetermined value, the copy operation is interrupted even if no color toner is detected. After the user detects that there is no color toner while copying the second side of double-sided/multi-hair copy, the user turns off the power and replenishes color toner. At that time, the intermediate tray 40 or
Copying may be interrupted by removing the transfer paper stored in the second paper feed section 23. Therefore, the power switch lO
If there is no transfer paper in the intermediate tray 40 or the second paper feeding section 23 when the copying paper 1 is loaded, the copying operation cannot be continued and the copying operation enters a standby state.

The above toner-free state processing will be explained in more detail.

8 and 9 are flowcharts regarding display and copy control in the case of no toner, and FIG. 8 shows processing in a standby state.

First, let me explain this.

To judge what color the developer is specified by the developer selection key 120 described above (301-1), in the case of black copying, select 3.
The presence or absence of toner in the developing device selected in step 02-1 is checked using a toner detection signal from a sensor (not shown);
If there is no toner, turn on the no toner LED 150-1 (
301-3), and prohibits the start of black copy and the start of two-color copy (301-4). That is, the copy start key 117 does not require manual input. If there is black toner, the no-toner LED 150-1 is turned off (301-6), and the copy start prohibition for two-color copying and black copying is canceled (301-7). Note that the presence or absence of toner is detected using a well-known method. Further, even if the toner is detected to be out of toner, it does not mean that the toner is completely out; in fact, the toner out is detected with some margin. In the case of color copying with a color developer selected, as well as black copy, if the selected color developer is out of color toner, LED150-1
301-9).

Prohibit color copying and two-color copying (301-10);
Also, if there is toner, release these (301-1
2.13), in which two-color copying refers to copy modes 5 and 6.7 mentioned above.

This is a mode in which black and color developing devices are used alternately to obtain two-color copies.

A case where the toner runs out during the next copy will be explained.

A flowchart is shown in FIG. 9, and the processing in this flowchart is checked every time one copy is executed. First, in step 302-1, it is determined whether the copy being executed is a black copy or a color copy. In the case of black copying, if no black toner is detected (302-2), the set number of copies being executed is calculated (302-3). If the circulating document feeder (RDF) is not used, this calculated value will be the number of copies set with the numeric keypad 122 in the operation unit 100, and if the RDF is used, this calculated value will be the number of copies set before copying starts. If the number of originals made is known in advance, the number will be the number of copies set using the numeric keypad 122 of the operation unit 100 multiplied by the number of originals.

It is determined whether the calculated total number of copies is 100 or more (302-4), and if it is 100 or more, a command is set to interrupt copying midway (302-5). In the case of color copying, it is determined in 303-6 whether there is toner or not, and if no toner is detected, in 302-7 it is determined whether the mode is multiple duplex or multiple copy mode using an intermediate tray, and multiple copies are made. 3 for duplex or multiple copy mode
A copy interruption command is sent at 02-5. Also, in a mode in which the intermediate tray is not used, and in cases other than the first side of double-sided or multiple copying (302-8-302-5), a copy interruption command is similarly set. Also, if it is the first page, it will be executed without interruption. For example, if you run out of toner in multiple single-sided copy mode using a color developer, 302-1
→ 302-6 → 302-7 → 302-8 302-5 and sets a command to interrupt copying midway.

In addition, in one or more embodiments, when copying using a color developer, copying was immediately interrupted due to the lack of color toner, but if the set number of copies to be copied is relatively small (about 3 to 5 copies), the set number of copies should be changed. It can also be configured to complete the copy. Further, when copying a specified area using a color developing device, when the specified area is small, the amount of toner consumed per copy is small, so the number of copies that can be made can be further increased.

FIG. 10 is a flowchart showing an example of this.
Connected to A in the figure. It is determined whether or not color toner is present during copying (303-1), and if toner is present, the color copy counter is cleared (303-2).Here, the color copy counter counts the number of copies made without toner. is the counter. When the toner runs out, add 1 to this color copy counter to 303-
3) If the method is other than Mead, which copies only the designated area, it is determined in 303-7 whether the copy counter is 5 or more.

If it is less than 5, continue copying, if it is 5 or more, 303
-9 sets the copy interrupt command and interrupts copying midway. In addition, in the area copy mode, the ratio of the specified area to the whole is calculated (303-5), and the ratio is 303-5).
If it is over 0%, perform the same process as the normal mode above, and set 30%.
% or less, at 303-8, and when the copy counter becomes 15 or more, a copy interruption command is issued at 303-9.

Further, in FIG. 8, copy start is prohibited when there is no toner, but it is easy to configure such that copy start is enabled when the number of sheets is less than a predetermined number.

Note that the copy area ratio can be calculated from the size of the selected copy paper, the copy magnification, and the coordinates of the designated area.

In this way, by combining with the set developer indicator 164, the toner-free indicator 150-1 can be used for both black and color.

Also, if the toner runs out while copying.

By distinguishing whether to continue copying or to stop copying according to the developing device copy mode being used at the time, two developing devices can be compactly implemented without impairing copy operability.

The above toner-free state processing will be explained in more detail.

8 and 9 are flowcharts regarding display and copy control in the case of no toner, and FIG. 8 shows processing in a standby state.

First, let me explain this.

To judge what color the developer is specified by the developer selection key 120 described above (301-1), in the case of black copying, select 3.
The presence or absence of toner in the developing device selected in step 02-1 is checked using a toner detection signal from a sensor (not shown);
If there is no toner, the no toner LED 150-1 lights up (
3.0l-3), and prohibits the start of black copying and the start of two-color copying (301-4). That is,
No input from the copy start key 117 is accepted. If there is black toner, the out-of-toner LED 150-1 is turned off (301-6), and the copy start prohibition for two-color copying and black copying is canceled (301-7). Note that detection of the presence or absence of toner is performed using a well-known method. Further, even if the toner is detected to be out of toner, it does not mean that the toner is completely out; in fact, the toner out is detected with some margin. In the case of color copying with a color developer selected, as well as black copy, if the selected color developer is out of color toner, LED150-1
301'-9) Prohibits color copying and two-color copying (301-10). Also, if there is toner, these are canceled (301-12.13). Among these, two-color copying is a mode in which black and color development "A" (are used alternately in copy modes 5 and 6.7 described in RIJ to make two-color copies).

About the case when the toner runs out during the next copy 1 Yue 1
Do 1.

The flowchart was published in the 9th IA, and the processing in this flowchart is checked every time one copy is executed. First, in step 302-1, it is determined whether the copy being executed is a black copy or a color copy. In the case of black copying, if no black toner is detected (302-2), the set number of copies being executed is calculated (302-3). If the circulating document feeder (RDF) is not used, this calculated value will be the number of copies set with the numeric keypad 122 in the operation unit 100, and if the RDF is used, this calculated value will be the number of copies set before copying starts. If you know in advance the number of originals to be printed, press numeric key 1 on the operation panel 100.
The number is the number of copies set in step 22 multiplied by the number of original sheets.

It is determined whether the calculated total number of copies is 100 or more (302-4), and if it is 100 or more, a command to interrupt the copying is set (302-5), and in the case of color copying, the toner 303-6 judges whether or not there is,
If no toner is detected, it is determined in 302-7 whether the mode is multiple duplex or multiple copy mode using an intermediate tray, and if the mode is multiple duplex or multiple copy mode, a copy interruption command is set in 302-5. do. Also, in a mode that does not use an intermediate tray, it is possible to make double-sided or multiple copies.
In cases other than face value (302-8→302-5), a copy interruption command is similarly set. Also, if it is the first page, it will be executed without interruption. For example, if you run out of toner in multiple single-sided copy mode using a one-color developer, 302-
1→302-6-302-7→302-8→302-5
and sets a command to interrupt copying midway through.

In addition, in one or more embodiments, when copying using a color developer, copying is immediately interrupted due to lack of color toner, but when the number of copies set is relatively small (3 to 5
It is also possible to configure the printer so that the set number of copies can be completed. Further, when copying a specified area using a color developing device, when the specified area is small, the amount of toner consumed per copy is small, so the number of copies that can be made can be roughly increased.

FIG. 10 is a flowchart showing an example of this.
Connected to A in the figure. Determine the presence or absence of color toner during copying (303-1);) If toner is present, clear the color copy counter (303-2); here, the color copy counter counts the number of copies made without toner This is a counter for If the toner runs out,
Add this color copy counter to +303-3)
, if the mode is other than mead, which copies only the designated area, it is determined in 303-7 whether the copy counter is 5 or more.

If it is less than 5, continue copying, if it is 5 or more, 303-
At step 9, a copy interrupt command is set to interrupt copying midway. In addition, in the area copy mode, the ratio of the specified area to the whole is calculated (303-5), and the ratio is 30
If it is more than %, perform the same process as the normal mode above, and set it to 30%.
If the following is true, when the copy counter reaches 15 or more in 303-8, a copy interruption command is issued in 303-9.

Further, in FIG. 8, copy start is prohibited when there is no toner, but it is easy to configure such that copy start is set to Tf2 when the number of sheets is less than a predetermined number.

The copy area ratio described above can be calculated from the size of the selected copy paper, the copy magnification, and the coordinates of the designated area.

In this way, by combining Ml with the set developer indicator 164, the toner-free indicator 150-1 can be used for both black/color.

In addition, when the toner runs out during copying, it is possible to implement two developing devices compactly without impairing copying operability by distinguishing whether to continue copying or to stop copying according to the copy start of the developing device being used at the time. It's a monkey.

Description of Editor II> FIG. 16 is a flowchart regarding processing of input values from the editor.

To determine whether the input data is area coordinates, S te
p4-2), if the area coordinates, the buzzer is 30m5ec.
Sound (Step 4-3).

Then, the input data from the editor is corrected to obtain a better image (Step 4-4), and the correction value is stored in the RAM (Step 4-5).

5 steps to determine whether the input data is key human coordinates
4-1) If key manual coordinates, buzzer is 60m5ec
Sound (Step 4-6).

Then, the copy mode is set and canceled based on the input data (Step 4-7).

Next, details of Steps 4-3 to 4-7 (1') will be described. Figure 17 shows Step 4-3 (7) 70
-It is a chart. First, turn on the buzzer in 5 steps 4
-3-1) Sound the buzzer. Then, in that state for 30 m5ec (Step 4-3-2), turn off the buzzer (Step 4-3-3).

FIG. 18 is a S te p4-747)7o-chart. First, turn on the buzzer in 5 steps 4-7-
1) Sound the buzzer, and in that state (60m5eC)
Step 4-7-2), and turn off the buzzer and stop the buzzer (Step 4-7-3), Step
As shown in 4-3 and 4-7, the time at which the buzzer sounds differs depending on the input of the copy mode and the input of the area coordinates. This is to make the user reconfirm the input mode and reduce erroneous operations. Also, as another embodiment, instead of sounding a buzzer, it is also possible to make a difference in the duration of one blink of an LED or the like.

FIG. 19 is a flowchart showing details of step 4-4. Here, the range of area coordinates of the editor is assumed to have a length in the X direction of intersecting x and a length in the Y direction of 1y. First, it is determined whether the input data X in the X direction is within 5 mm from the edge of the area range (Step 4-4-1), and if it is within 5 mm, the manual data X is set to O (Step 4-4- 2
). It is determined whether the input data Y is within 5 mm from the edge (Step 4-4-3).

If it is within 5mm, set input data Y to 0 (S t
e p4-4-4), input data X is Jlx-5m
If it is greater than or equal to m (Step 4-4-5).

Set input data X to cross X (Step 4-4-6)
, if the input data Y is greater than or equal to y-5mm (Step
4-4-7), set input data Y to IV (S t
e p4-4-8) This is to prevent unnecessary images from being formed on the edge of the copy paper due to an error when specifying the edge of the editor area when specifying the masking number trimming area. be.

Further, as another embodiment, when the document size can be detected (for example, a plurality of document detection sensors are provided under the document platen glass, and the document size is detected by a combination of their outputs.

), the length in the X direction lx, the length in the Y direction! Set Ly to the original size. When this is implemented, Step 4-4-6 is performed in the above implementation method.

Since the correction in step 4-4-8 was performed uniformly regardless of the document size, it was not effective for documents smaller than sentences x and ly.

However, if it becomes possible to detect the document size, the corrections in Steps 4-4-6 and 5-4-8 can be made according to the document size, and the image formation by masking and trimming will be better than in the above embodiments.

The data corrected in step 5step 4-4 is stored in the RAM. Masking/trimming of multiple areas separated from each other or overlapping is possible by the image forming method of trimming/masking described below. Figure 20 is a flowchart showing that area coordinates, color mode, and multiplex mode can be input from the 4 editors. be.

If the manual data is the area copy mode key 93 (FIG. 5-1) (Step 4-7-1).

The above-mentioned mode 6 copy mode is selected (Step
4-7-11).

If the input data is the area copy mode key 94 (S t
e p4-7-2), the copy mode in (7)%-5 is selected (Step4-7-10).

If the input data is the area copy mode key 95 (Step
4-7-3), the aforementioned mode 4 copy mode is selected (Step 4-7-9).

If the input data is the area copy mode key 96 (Step
4-7-4), the aforementioned mode 3 copy mode is selected (Step 4-7-19).

If the input data is the area copy mode key 97 (Step
4-7-5), the aforementioned mode 2 copy mode is selected (Step 4-7-18).

If the input data is the area copy mode key 98 (Step
4-7-6) The above-mentioned copy mode of mode 1 is selected (Step 4-7-17).

If the input data is the memory key 91 (Step 4-7-7), determine whether the area of the registered area (7) is O (Step 4-7-14), and if the area of the area is O, set the copy prohibition flag. Set (
step 4-7-16).

Furthermore, if the area area is not O, area registration is performed (4-7-15), and the area can be easily calculated from the coordinates of two points in the designated area.

If the input data is the clear key 92 (Step 4-7-
8), Determine whether any of the mode keys 91.93 to 98 above is selected.Step 4-7-12)
, when selected, clears the selected mode using keys 91, 93-98. By doing the above, you can specify the area, select the color mode, and select the multiplex mode from the editor.

You can also easily add a double-sided mode to the editor.

FIG. 21 is a flowchart in which the copy operation is not executed when the area of the registration area is O. copy key 117
The copy operation start flag is set by turning on, etc. Determine whether the copy operation start flag is set (5teP12-1), and if it is set, determine whether the copy prohibition flag is set (5teP12-1).
step12-2), if set, prohibits the start of a copy operation. If the copy prohibition flag is not set, the copy operation is started (Step 12-3).

This is when an invalid area is registered.

Copying is prohibited. This is to notify the user when invalid area registration is executed due to user error.

Also, if you want to change the editor's manual correction value, you can do so by following the steps below. first.

Trouble ■ Trouble (Press the asterisk key 121 Trouble, press the numeric keypad 1
Press 22 ■ and press the asterisk key 121)
By pressing the key, the mode for changing the correction value of the editor input is entered.

Subsequently, by pressing the (2) key (press (2) on the numeric keypad 122 and press the asterisk key 121), the correction value input by the editor is changed to 3 mm. Also, if you press the numeric keypad 1220 times instead of (2) on the numeric keypad 122, the correction value of the editor input will be
This means that it has been changed to mm. This means that no correction of editor input is performed. As described above, correction of editor input is performed according to steps 4-4-1 and 4-4-3.4-4 of the flowchart in FIG.
5. This means that the value of 5mm shown in 4-4-7 has been changed.

Explanation of area specification using keys〉 Next, section 6 explains area specification using keys and inputting coordinates.
This will be explained using FIG. 4 and FIG. 65. An area memory (not shown) stores in advance three rectangular areas represented by two points located on the diagonal of the area. Note that the data is memorized even when used for the first time. Therefore, when performing area specified copying, the user selects which of the three areas to make valid.

Note that the only combinations of areas that can be selected are Area 1, Area 1 and Area 2. There are three types: area 1, 2 and 3. This section explains how to specify an area. First, area key 128
When you press once, LED 138-1 (':1IJ64
) lights up, and in this state only area l becomes valid.

When the area key 128 is pressed a second time, the LEDs 138-1 and 138-2 light up, and in this state, area 1 and area 2 become valid. When you press the third time, LE0138-1.138
-2, 138-3 lights up, and in this state areas 1, 2...
3 is valid. When pressed a fourth time, all of the LEDs 138 go out and the area designation is canceled.

As mentioned above, four pieces of coordinate data are stored in each of the three areas, and a case in which these data are changed will be described.

First, press area key 12 to specify the area you want to change.
Press 8. Area l each time you press the button for the first, second, and third time.
, area 2. Area 3 is selected and, as shown in FIG. 65, a base pointer BP indicating the data to be changed is specified.

Note that the display on the LED 138 at this time is the same as in the case of specifying the effective area described above.

After specifying the area to be changed, by pressing the point key 104, the coordinates to be changed can be selected. First, when the point key 104 is pressed, the LED 139-1 blinks, the base pointer is designated as XI, and the coordinates of Xi can be input. At this time, the currently stored
The data of i is displayed on the magnification display section 154. Furthermore, XI
is the X coordinate of the lower left corner of the area.

X2 is the X coordinate of the upper right corner, Yl is the X coordinate of the lower left corner, and Y2 is the yF% mark of the upper right corner.

When changing the XI data, it can be done using the numeric keypad 122 or the zoom magnification key 109. Note that when changing the value using the zoom magnification key 109, the display section 15
4 (increase/decrease Iff).

Then, when the point key 104 is pressed, the magnification display section 15
The data displayed at 4 is stored as Xi data, and the currently stored data at x2 is displayed on the display unit 154, and the base pointer moves to x2. Furthermore, LED139-1 changes from blinking to lighting, and the LED of X2
D139-2 blinks. If it is necessary to change the data of x2, perform the same operation as above. Similarly, data can be changed in the order of Yl and Y2 by pressing the point key 104. When the point key 109 is pressed and the data of Y2 is memorized, the four LEDs of Xl-Y2
39-1 to 139-4 go out.

In addition, when the base pointer is not selected.

That is, when all of LE0138-1 to LE0138-3 are off, the data of Xl-Y2 cannot be changed even if the point key 104 is pressed.

Also, when point key 104 is pressed, i2! The LED 138 of the selected area blinks, and the value of the base pointer can be confirmed. When the storage up to Y2 data is completed, the LED 138 of the selected area
changes from blinking to lighting, but the 1-base pointer does not change unless the area key 128 is pressed.

Also, if you press the area key 128 while any of the XI-Y2 (7) LEDs 139 are blinking or lit, the base pointer will move to the next area, but
If a base pointer is specified in , data modification mode is canceled.

Explanation of Blank Exposure> Next, the control of the LED array 14 during area designated copying will be described.

FIG. 22 shows a portion of the RAM, in which an area necessary for control is secured. To simplify the explanation, the number of areas that can be specified is assumed to be two here. 200-5 stores the data of the area set by the operation unit 100 or the editor 70, and 200-1 stores the data of the area set by the operation unit 100 or the editor 70. Start data in the X direction (optical system scan, direction) of area O, 2
00-2 is the end data of area O in the X direction, 200-3
is the starting position data in the Y direction (vertical direction) of area O, 20
0-4 is the end data in the Y direction of area 0, and four data are set for 0 or more areas, and the same is true for area 1. 200-6 is 200-3.

ON7/OF of LED corresponding to data of 200-4
This is F data, and in this embodiment, 5×24 bits are provided, and 1 bit corresponds to one LED.

For example, 100°200-3 (YOE)
4 If 200 is set in (YOE), the LED array 14 has LEDs arranged at a pitch of 2.5 mm, so 200-6 is 100/2.5 = 200/2.5 = from the 40th bit. Bits up to the 80th bit are set to 1, and all other bits are set to 0.

Similarly, data corresponding to the Y direction data of area 1 is set in 200-7. 200-8 is the area used when changing the lighting state of the LED array, 200-6,
The same number of bits as 200-7 are provided. 200-
Reference numeral 9 is an area for setting the state in which the LED array is actually illuminated, and as described later, data in this area is output corresponding to each digit.

The transistor group 82 is driven. 200-10゜200
-11 is an output data switching flag used when changing the lighting state of the LED array.

This is an output current switching flag. 200-12 is a digit counter used to control which digit is output.

FIG. 23 shows how the LED array 14 corresponds to the area.
This is a flow showing how to control.

When copying starts, the optical system starts scanning in the X direction. In 201-1, it is determined whether the copy is within the area, and if it is the copy within the area, the process proceeds to 201-2 and the LED output data 200
Set all l to -9. As a result, all the LED arrays 14 are turned on and all five images are erased. If it is not an intra-area copy, the process goes to 201-3 and all O's are set in the LED output data 200-9. As a result, all the LED arrays 14 are turned off, and an image appears in all parts in the Y direction. Then, in 201-4, it is determined whether it is the start timing in the X direction of area O,
N.

If so, the process proceeds to 201-12, and it is determined whether the end timing of area 1 in the X direction is reached. N.

If so, the process advances to 201-18 and similarly determines whether it is the start timing in the X direction of area 1. If no, 2
At 01-20, it is determined whether or not it is the end timing of area l in the X direction. N.

If so, the process advances to 201-22 and it is determined whether or not it is the optical system reversal timing. If No, proceed to 201-4. If the timing to process is not reached like this, 201-4 → 20
1-12→201-18→201-20→201-22
→ Repeat the loop of 201-4.

Here, when the start timing in the X direction of area O is reached, the process proceeds from 201-4 to 201-5 and a series of processes is performed.

In 201-5, it is determined whether the start timing in the direction of area 0 is within area 1, and if YES, the process advances to 201-6. In this case, since area O and area 1 overlap, the logical sum of area 0 LED data 200-6 and area 0 LED data 200-7 is set in LED output buffer 200-8, and the process proceeds to 201-8. On the other hand, if NO in 201-5, the start position of area O in the X direction does not overlap area l by one point. Therefore, the LED output buffer 200-8 contains LED data 200-6 of area O.
Set the contents as is. Then, proceed to 201-8. In 201-8, it is determined whether or not the copy is within the area, and if it is the copy within the area, the process proceeds to 201-.9.

201-9 inverts the contents of the LED output buffer 200-8, and 201-10 inverts the output current switching flag 200-1.
Set 1 and return to 201-4. Due to this, 1
For example, in the above example < 200-3. 10 to 200-4
If 0,200 is set, the LED in the Y direction corresponding to 100 to 200 will turn off, and the other LEDs will turn off.
will now be turned on, and images will be output only inside the predetermined area. Also, as will be described later, since only the output current switching flag 200-11 is set, the lighting state of the LED array 14 is switched after one cycle of digits O to digit 4 is strongly lit in the lighting state yn1 of the previous LED array 14. . On the other hand, if it is determined in 201-8 that the copy is not within the area, the process proceeds to 201-11, where the output data switching flag 200-10 and the output current switching flag 200-11
Both flags are set. The LED output buffer is not inverted, so if <200-3°20
If 100 and 200 are set in 0-4, only the LEDs in the portion corresponding to 100 to 200 in the Y direction are lit, and the image in that portion is erased. Also, output data switching flag 200-10 and output current switching flag 200-1
Since both flags 1 are set, the lighting state of the LED array 14 is switched from the next digit O timing as described later, and the LED array 14 is turned on strongly for one period. Then, return to 201-4.

Next, the case where the end timing of area 0 in the X direction is reached will be described. The process proceeds from 201-12 to 201-13, and it is determined whether the end timing of area O in the X direction is between the start and end positions of area l. If YES.

Proceeding to 201-14, the copying of area 0 has been completed, but since the end position of area O in the X direction is included in area 1, area I is stored in the LED output buffer 200-8.
Set the data of LED data 200-7. On the other hand 2
If No on 01-13, proceed to 201-15! 1,17
Since the end position of 0 in the X direction is not included in any area, all 0s are set in the LED output puffer 200-8. Next, in 201-16, it is determined whether it is a medium copy or not, and if it is a medium copy, the process goes to 201-17 and the LED is displayed as before.
The contents of output buffer 200-8 are inverted. And 2
The output data switching flag 200-10 and the output current switching flag 200-11 are set in 01-11, and the output data switching flag 200-11 is set in 201-4.
Return to On the other hand, if 201-16 is No, 201-10
Proceeds to step 201, where only the output current switching flag is set.
- Return to 4.

Next, when the start timing of area l in the X direction comes, 2
The process advances from 01-18 to 201-19, and in 201-19, the same process as in the case of the start timing in the X direction of area 0 described above is performed.

This is a process in which the area numbers O and 1 are changed, and the explanation will be omitted.

Also, if it is the end timing in the direction of area l, 2
Proceeding from 01-20 to 201-21, here the process is performed with the area numbers O and 1 changed from the end timing of area O in the X direction described above.As the optical system scans, the timing of reversal comes. , 201-22 to 201-
Proceed to step 23 and input all the LED output data 200-9.
Then, all the LED arrays 14 are turned on and unnecessary images are erased.
Also, the optical system begins to move backward and one cycle ends. The same applies when there are three or more areas.

Next, the portion that controls the dynamic lighting of the LED array 14 will be explained with reference to FIG.

This routine is executed by a timer interrupt every 1m5ec.

First, the operation when both the output current switching flag 200-11 and the output data switching flag 200-10 are not set will be described. In this embodiment, the digits are from O to 4, and the digit counter 200-12 is updated at 202-1.
2 is also updated with a value from O to 4. If it is not O, the process goes to 202-11, and if it is O, the process goes to 202-3 to turn off the strong lighting. 202-4 → 202-8 → 202-11
Proceed to.

Here, the digit output and segment output corresponding to digit counter 200-12 are set. For example, if the digit counter 200-12 is O, digit O is turned on, and the segment and ment outputs are data 2 corresponding to digit O of the LED output data 200-9.
Output the contents of 00-13. If it is 1, the corresponding LED
is on and O, the corresponding LED is turned off. And it ends. The digit counter is updated sequentially, and at the first timing, digit 1 is turned on at 202-11, and the segment output is LED output data 202-11.
The contents of 200-14 corresponding to digit 1 of 9 are output.

Next, a case where both the output current switching flag 200-11 and the output data switching flag 200-10 are set will be described. The content of digit counter 200-12 is O
The same process as described above is performed until O is reached, and when O is reached, 2
02-2. Proceed to 202-3 and turn off the strong lighting. At this time, the strong lighting is off in the previous state, so it has no meaning here.

Next, 202-4 → 202-5, turn on the 1 strong light,
Reset the output current switching flag 200-11. Next, proceed to 202-6 → 202-9, reset the output data switching flag 200-10, and go to LE at 1.202-10.
The contents of the D output/header 200-8 are set to the LED output gator 200-9. Then, the process of 202-11 is performed and the process ends. And the first digit counter 200
When -12 becomes O, it changes from 202-2 to 202-3 and the strong lighting turns off.

R7 lag has already been reset, so 202-4→2
02-8 → 202-11 and normal processing is performed. Therefore, the output state of the LED array changes at the timing of digit O, and from there on, the one-strong lighting is turned on for one cycle.

Next, the operation when only the output current switching flag 200-11 is set will be explained.

200 when digit counter 200-12 reaches 0
-2-202-3 and turns off the strong lighting. 202-4
-202-5, and the same processing as above is performed. This time it changes from 202-6 to 202-7 and output data switching flag 2
Sets 02-11 and ends through 202-11.

Next, when the digit counter 202-12 becomes O, 2
02-2 → 202-3, and the strong lighting is turned off. 202
-4 → 202-8 → 202-9, the output data switching flag 200-1O is reset, and at 202-10 it goes low.
LED output buffer 200 to ED output data 200-9
-8 is set, and the output state of the LED array 14 is changed. Therefore, the output state of the LED array 14 is turned on for a little more than one cycle from digit 0 in the output state of the LED array 14 one cycle before, and then the output state of the LED array 14 is updated.

The timing of changing the digit output, strong current, and LED output data is shown in FIG. 25. At time t1 in FIG.
is the start or end timing of the area, and at this time, the above-mentioned output current switching flag 200-11. The output data switching flag and the contents of the LED output buffer 200-9 are set depending on the image conversion mode.

The strong lighting is at the subsequent first digit O output timing t
It turns on at 2 and then turns off after one cycle T. On the other hand, LE
D output data is changed at timing t2 or t3 depending on the image conversion mode and whether the area starts or ends. The time t2 is used to change the area end timing for intra-area copying and the area start timing for out-of-area copying. Furthermore, the changes made at t3 are the area end timing for out-of-area copying and the area start timing for intra-area copying. As a result, as shown in FIG. 26, strong lighting is turned on on the non-image area side at the boundary between the image area 204-2 and the non-image area 204-1 in either the intra-area copy mode or the outer-area copy mode. As a result, sharp edges are maintained. Furthermore, by changing the lighting state of the LED in synchronization with the timing of digit O, the edge becomes more linear. The situation is shown in FIG. 27.

In Figure 27, 205-1 is LE with digit 2, for example.
This shows the case where the lighting of D is switched from all off to all on. In this embodiment, d is the distance that the drum travels in 1 m5ec, but as shown in the figure, a maximum deviation of 4d will occur. However, as in the present invention, the digit O
By synchronizing with , the deviation is always d as shown in 205-2, so the boundary portion appears smooth. Also LED
Further linearity can be achieved by mounting the array at an angle.

FIG. 28 is a diagram showing the output result when there are two areas in the intra-area copy mode, and the shaded area is the area where the image is output. As mentioned above, since the two areas are logically summed, an image of only the desired portion can be obtained even if the two areas are separated or overlap.

FIG. 29 is a diagram showing the output result when there are two areas in the out-of-area copy mode, and the shaded area is the area where the image appears. As with intra-area copying, a desired portion of the image can be erased even if the areas are far apart or overlap.

Description of Editor ■> Next, different embodiments of area specification will be described. FIG. 30 shows the editor 250-1.

250-2 is a part for setting image conversion mode.

250-3 is a part for specifying an area.

In the mode setting part, fill specification of 250-4, 2
There are 50-5 color specification within the area, 250-6 color specification outside the area, 250-7 area black and white specification, 250-8 copy outside the area, and 2 points specified for the area specification part 250-3. 1 by pressing the mode setting part after
When the area (a rectangle with two diagonal points) is set, the mode of that area is registered.

The filling designation 250-4 is for filling the set area in color regardless of the state of the document. 25
0-5 color specification within the area outputs an image with color toner only inside the set area, and 250-6 color specification outside the area outputs an image in color only outside the set area. be. 250-7 area black and white specification outputs the image in black only inside the set area, and 250-7
Point designation outside the area of 0-8 outputs an image in black only outside the set area.

Fig. 31 shows an area data area 251-7 provided in the RAM for storing specified area data. , a section 251-1 for storing modes such as external heat, and sections 251-2 to 251-5 for storing coordinates of designated areas. In the region data area 251-7, a plurality of pieces of data 251-6 regarding one area designation are set. When the two points of area designation part 250-3 are pressed and then the mode designation part of 250-2 is pressed, the mode changes to 251-1.
Also, point data is stored in 251-2 to 251-5.

The 32nd copy operation after the next copy command is input is
This will be explained according to the diagram. First, in step 252-1, all locations where the mode of area data area 251-6 is stored are searched and investigated. At step 252-2, it is determined whether a black fill mode or a red fill mode is set therein. First, the case where it is set will be explained.

At step 252-3, transfer paper is fed from the cassette, and as described later, a copying operation is performed in which only the portion corresponding to the designated filling area is filled in with the designated color. The transfer paper is set in the second paper feed section 23 with the copied side facing down.

At this time, the transfer paper is designated f-25 as shown in Figure 35.
Only the portion 5-2 is filled in color, and the other portions are white. At step 252-4, it is determined whether the inside-area color mode or outside-area color mode has been specified, and if No, the process proceeds to 252-7. If YES, it is determined whether the area monochrome or area out mode is specified in 252-ri,
If no, proceed to 252-7; if yes, proceed to 252-6
Proceed to. Therefore, if you want to make both color and black copies, 2
Go to 52-6, and if you want to copy one color, go to 252
-7. 252-6 feeds paper from the second paper feed section, performs color copying in the area specification mode to the specified area as described above, and transfers the transfer paper again to the second paper feed section with the dented side facing down. set primary to 2
At 52-8, paper is fed from the second paper feed section, black copying is performed in the area designation mode on the designated area, the transfer paper is discharged outside the machine, and the copying operation is completed.

Therefore, in this case, first, as shown in FIG.

Make a fill copy, then make a red copy on the same side, and finally make a black copy on the same side and finish.

On the other hand, if the process advances to 252-7, the transfer paper is fed from the second copy section 23, a copy operation is performed according to the designated color and area, and the transfer paper is discharged outside the machine, and the process ends.

Next, the case where no fill mode is specified will be explained. The process proceeds from 252-2 to 252-9, and in 252-9 it is determined whether there is an inside color mode or an outside color mode. If No, the process proceeds to 252-12; if YES, the process proceeds to 252-10. In 252-1o, it is determined whether or not the area monochrome or area out mode is set.

If there is a prayer, proceed to 252-11, and if there is no prayer, proceed to 252-12. That is, if it is necessary to make both a color copy and a black copy, the process advances to 252-11, and if only one is required, the process advances to 252-12.In 252-11, one sheet is made from the cassette.

Copy the specified area in color, and
The paper is then set in the paper feed section 23 with the copied side facing down.Next, at step 252-8, the paper is fed from the second paper feed section in the same manner as described above, a black copy is made, and the paper is discharged outside the machine. On the other hand 252-12
If the process advances to , the machine feeds paper from the cassette, copies according to the specified color and area, and then discharges the transfer paper to the outside of the machine.

Next, I will explain about fill copy.

When filling in the image, by leaving the exposure lamp 24 off, an electrostatic latent image of a solid image is formed on the photosensitive drum 20. Therefore, as explained in the above area copy, by selectively lighting up the LED array 14 at the timing according to the designated area, the latent image of the unnecessary part is erased, and only the desired part is output as a solid image. I can do it. The flow is shown in FIG. 33.

At step 253-1, the LED array 14 is fully turned on, and thereafter, feeding of the transfer paper is started at a predetermined timing.

Next, 253-2 determines whether or not it is the area start timing, and if NO, the loop is repeated at 253-2.After that, when the area start timing comes, 253-3 turns on the LED 7 ray 14 in the Y direction of the specified area. Select lights according to the coordinates.

At 253-4, it is determined whether or not the end timing of the area in the X direction has come. At timing 447 in the X direction of the area, the LED array 14 is fully lit at 253-5, erasing the image over the entire area. Then, it is determined by counting pulses at 253-6 whether or not the development for the size of the transfer paper has been completed, and if YES, one cycle is completed.

Next, an example of the copy result is shown in FIG.

In the diagram, 254-4 is filled in with color,
254-3 is copied in black.

This is the same for the image in 254-4, and as shown in Figure 1, A B
The black characters "C" (corresponding to the original) are output. The original is copied in color in 254-2, and the image is erased in other parts. This is the desired copy result. The operation for doing this is as follows: Set the original on the editor 250-1 and input two points on the diagonal line of the area 254-4 using the editor.Next, specify the fill mode of the area 250-4. Press two points on the diagonal line of the area 254-3, then press the area color specification section 250-5.Press two points on the diagonal line of the area 254-2.

Finally, press the area black and white designation section 250-7. Then, place the original on the document table and press the copy key. These input operations first copy the filled part of the area 254-4, first copy the part 254-2 on the same side in color, and finally copy the part 254-3 in black, and then automatically Copying ends. In this way, it can be performed with a very simple rli operation. In addition, since the filled-in copy is performed first, the original can be copied onto the filled-in portion L, and a good copy can be obtained, for example, when a title portion is to be highlighted. In addition, you can input the color part, black part, and fill-in part at the same time, and the operation is very easy without having to set the fA stripe on the editor or on the document table many times. , and it matches the thinking of a single person.

Furthermore, by using a narrow LED during irradiation, it is also possible to draw a thin line such as an underline.

In the example of the output result shown in Fig. 34, there is only one area in each of the color within area, black and white area, and fill mode, but it goes without saying that multiple areas are possible as explained above. be. Further, although only the mode shown in FIG. 30 is registered for one area, it is also possible to add, for example, copy magnification and position designation of where on the transfer paper the image of the area should be displayed.

The copy magnification and position designation are added to the section 251-1 shown in FIG. 31 where the mode is recorded.

During copy operation 1 For example, two areas with color inside are registered, and one of them is 100% (area L)
If the other one is set to 64% (area 2), 252-6 or 25% in the flowchart shown in FIG.
The operation in step 2-11 may be performed as follows. 10
With a copy magnification of 0%, a color copy is made of only area l, and the transfer paper is set in the second paper feed section 23.

Next, change the magnification and set the copy magnification of 64% to the second paper feed section 23.
A color copy is made of only area 2, and the transfer paper is set in the second paper feeding section 23 again. Further, it is possible to specify one position by calculating the difference between the position specification value and the area position and shifting the transfer timing of the transfer paper by the difference (only in the X direction in this embodiment). Similarly, when a position is specified, for example, if the amount of deviation in the feeding timing of the transfer paper due to the position specification in a certain area and the amount of deviation in other areas is large, multiple copying may be performed by dividing into two exposures.

Furthermore, if multiple copies are made on a single sheet of transfer paper many times, the transfer paper will be damaged, leading to poor conveyance and paper jams, or poor transfer performance, making it impossible to obtain good images. Therefore, each time an area is registered, the number of times that multiple copies must be made is calculated, and if the value exceeds a predetermined value, the registration is prohibited and a warning is displayed.

In the above embodiments, the images of each designated area are multiple-copied onto the same transfer paper, but each area may be copied onto separate transfer paper. In addition, in such a mode, it is possible for the image of the designated area to appear at the leading edge or center of the transfer paper. trouble key 121
By pressing , pressing ■ on the numeric keypad 122, and pressing the trouble key 121, it is possible to specify that the designated areas be copied onto separate transfer sheets. Also, press the Trouble key 121,
By pressing (2) on the numeric keypad 122 and pressing the trouble key 121, it is possible to specify that one image be aligned with the leading edge of the transfer paper.

Furthermore, by pressing the numeric key 121, pressing (4) on the numeric keypad 122, and then pressing the numeric key 121, it is possible to specify that one image be placed in the center of the transfer paper.

At the start of the copying operation, first, copying is performed according to the mote and coordinates set at the beginning of the area data area shown in FIG. 31, and then the transfer paper is discharged outside the machine. If the mode set at the beginning is in trouble, the timing of feeding the transfer paper is delayed by xo. If the mode set at the beginning is difficult, the first calculation is performed.

However, 1 is the transfer paper size.As a result, if the value of T is positive, the transfer timing of the transfer paper is delayed by T. On the other hand, if the value of T is negative, the feeding timing of the transfer paper is advanced by T1.

Next, referring to the second area designation of the area data area in FIG. 31, if it is registered, it is similarly copied and ejected from the machine.゛Then, copy sequentially,
All the areas registered in the area data area of FIG. 31 are copied, and the series of copy operations is completed.

As described above, according to the present invention, for example, when newspaper articles are filed item by item, multiple newspaper articles can be specified at once. It is also possible to copy onto separate transfer sheets with a single copy command. Furthermore, it is very convenient because the article can be copied to a desired position on the transfer paper.

Figure 35-1 shows the results when two areas are specified to appear in the center of separate transfer sheets.
35-12 and 35-13 are designated for the original, and the portion 35-12 is copied onto the center portion 35-15 of the transfer paper 35-14. Also, the center portion 3 of the transfer paper 35-16
The part 35-13 is copied to 5-17.

Description of Copy Paper Conveyance Path> As described above, this embodiment has two systems of copy paper refeeding mechanisms for realizing double-sided copying or multiple copying. That is, the second clam paper section 23 and the intermediate tray 4o
It is. Which of these is used depends on the copy mode.

That is, the copy program determines the optimal system based on the size of the copy paper and the set number of copies. The former is a paper refeed unit that is essential for realizing double-sided and multiple copying.
Since horizontal registration is easy with the mechanism described later, there is a degree of freedom in the size of one sheet. However, you cannot store more than one sheet of paper there. On the other hand, the latter allows multiple sheets of paper to be stacked, but horizontal alignment can only be done to a predetermined fixed size.

Part 63: How to choose a paper path for double-sided/multiple copying
This will be explained according to the diagram.

When a copy operation is started by a copy command.

First, in step 270-1, it is determined whether double-sided/multiple copying is to be performed on the same original, that is, without exchanging originals. For example, in the case of a mode in which a predetermined portion of a document is copied in color and other portions are copied in black, the answer is YES. If YES,
At 270-2, it is determined whether the original is a standard size or not. If it is not the standard size, proceed to 270-5 and unconditionally select the second paper feed section 23. If YES, 270-4
Proceed to , determine whether the set number of copies is 1, and select YES.
If so, proceed to 270-5 in the same way, if no, proceed to 270-4
Determine whether the set copy number is greater than 30 sheets, which is the maximum number of sheets that can be loaded on the intermediate tray 40, and if YES, select 270-5.
If no, proceed to 270-8.

270-5 copies one sheet and transfers the transfer paper to the second paper feed section 23.
The transfer paper is set in the printer, the paper is re-fed from the second paper feed section 23 at 270-6, the copy is made, and the transfer paper is discharged to the outside of the machine.

270-7 determines whether the set number of copies have been completed, and if No, 270-5 → 270-6 → 270
-7 loop is repeated, and the copying operation continues until the set number of copies is completed, and then ends. On the other hand, if the process proceeds to 270-8, the copy operation is performed using the intermediate tray 40. In 270-8, the set number of copies are made and transfer paper is set on the intermediate tray 40. Next, in 270-9, the intermediate tray 40 is copied. The machine refeeds the paper, makes copies for the set number of sheets, and outputs one sheet outside the machine.

If the determination is No at 270-1, the process proceeds to 270-10. 270-10 determines whether the original is a standard size, and
If o, set the number of copies to 1 at 270-17 and proceed to 270-18. If YES, 270-1
1, it is determined whether the set number of copies is 1 or not. If YES, the process advances to 270-18, and the second paper feed section 23 is selected.

If no, select intermediate tray 40, 270-12
Determine the number of copies, and if it is 30 or more, it is 270-1
Step 3 sets the number of copies to 30.

Next, at 270-14, the set number of copies are made in the same manner as at 270-8, and the copies are set on the intermediate tray.

When the original is replaced at 270-15 and a copy command is output, copying is performed at 270-16 in the same manner as at 270-9, and the process ends. On the other hand, when the second paper feed section 23 is selected, the second paper feed section 23 is selected.
70-18, same copy L as 270-5, 270-1
When the original is exchanged at 9 and a copy command is output, 270
At -20, copy in the same way as 270-6 and end.

As explained above, in this embodiment, multiplex/double-sided copying, temporary copying, and copying other than standard sizes are possible.

That is, when feeding paper from the cassette or manual feed tray, and when copying one sheet, one sheet is fed from the intermediate tray 40.
The sheets are sent directly to the second sheet feeding section 23 for re-feeding without being sent to the second sheet feeding section 23. When copying a large number of regular sheets, the sheets are once stacked on the intermediate tray 40 and then sent to the second sheet feeding section 23 for re-feeding.

The selection of which of the above two types of systems to use is not made by the operator, but is done automatically by the sequence program, so the operator does not have to think about it each time, and control is always performed using the optimal system. . In addition, for non-standard size copies,
It is possible to perform copying one sheet at a time using the second paper feed without using an intermediate tray. Furthermore, unnecessary troubles can be avoided by determining the inconvenience of the transfer paper (such as the size being too small) and discharging it outside the machine without performing double-sided/multiple copy processing.

The copying apparatus of this embodiment can also be equipped with an automatic document feeder (hereinafter referred to as ADF), and the ADF is shown in FIG. Various proposals have been made so far.

Here, the operation of the cylinder will be explained. 26 in Figure 61
0-12 is an ADF that can set multiple sheets of originals and automatically stacks one sheet, 260-11 is an original tray for setting originals, 260-10 is an original sensor that detects originals, 2
60-1 is If1', a paper feed auxiliary roller for feeding the document, 260-2 is Hibelt, 260-3 is the lower belt, 26
0-5 is a paper feed roller, 260-6 is a drive roller, 260
-7 is a conveyor belt driven by 260-6 260
-8 is a paper discharge roller, and 260-9 is a paper discharge tray section.

When a document is set on the document tray 260-11, the document sensor 260-10 detects the document. A motor (not shown) rotates in response to the copy command, and each drive unit starts operating. The paper feed auxiliary roller 260-1 moves in the direction of arrow A by a mechanism not shown, conveys one document to the paper feed roller 260-5, and the paper feed auxiliary roller 260-1 rises. After that, the original is fed by the 260-5 paper feed roller! The document is conveyed by a two-feeding belt and stopped when the leading edge of the document reaches the base position of the document table 5 shown in FIG.

Exposure of the original is started by moving the optical system, and when the exposure of a predetermined number of originals is completed, the ADF starts operating again. At this time, if the document sensor 260-1o detects the document, it feeds the next document in the same way as described above, and at the same time the document set on the document table 5 passes through the paper ejection roller of 260-8. The paper is discharged to the paper discharge tray section 260-9. Then, the next original is copied. This operation is repeated until there are no originals left on the original tray 260-11. When the last original is set on the original table 5 and the prescribed original exposure is completed,
At this time, the original sensor 260-10 does not detect the original, so no paper feeding operation is performed, and the original is ejected to the paper ejection tray 260-9, completing one series of copies.

FIG. 62 is a flowchart illustrating that copying operations differ depending on the number of C) ADF originals in single-sided or multiplex mode.

In Step 7-1), the original is set in a predetermined position. At that time, the document tray 260-1
The document sensor 260-10, which detects the presence or absence of a document in step 1, determines whether there is one document or a plurality of documents (Step 7-2).

First, we will discuss the case where there is only one manuscript.

If No in step 7-2, it can be determined that there is only one original set. The operation of copying the first side is completed,
Convey the transfer paper to the second paper feed section 23 (Step 7-13
), and the original is ejected (Step 7-14), and the transfer paper in the second paper feed section performs the copying operation for the second side according to the primary copying operation start command, completing the series of copying operations. do.

Next, a case where there are multiple manuscripts will be described.

If Yes in Step 7-2, it can be determined that there are a plurality of originals set. After completing the copying operation for the first side, the transfer paper is conveyed to the second paper feeding section 23 (Ste
p7-3). Then, eject the original, and then use the original tray 2.
Feed the original on 60-11 (Step 7-4)
. The copying operation for the second side is performed and the transfer paper is discharged outside the machine (Step 7-5). Then, it is determined whether there is a mistaken original in the original tray 260-11 (Step 7-6), and if there is no original, the original is ejected (Step 7-1).
4) Complete the series c7) copy operation.

Further, if there is a document in the document tray 260-11, the document is ejected and the next document is fed (Step 7-7). Then, it is determined whether or not the next document is in the document tray 260-11 (Step 7-8), and if there is, the first side is copied and the transfer paper is conveyed to the second paper feed section 23 (Step 7).
-9), then eject the original, feed the next original, and
Copy the first page and eject the transfer paper from the machine. Then, the process is executed again from step 5 step 7-6.

If NO in 5steps 7-8, the copying operation for the first side is complete.
After that, the transfer paper is ejected from the machine (Step 7-12), and the original is ejected (Step 7-14), completing a series of copying operations.

As described above, differences in copying operations depending on the number of ADF originals have been described. Now, this effect includes the following.

For example, when combining large-sized originals such as newspapers that cannot be fed with an ADF and originals that can be fed with a regular ADF, or when performing duplex/multiple copying, when the number of originals set is one The ADF could not be used to obtain double-sided or multiple copies for ejection.

Furthermore, for the same reason as mentioned above, I was unable to make a double-sided copy of a double-sided original using the ADF.

Also, when you try to make multiple or double-sided copies of two originals by using the masking trimming copy mode, you cannot specify the area for two originals at the same time, so you can specify the area for each original one at a time. I have to set it, but
For the same reason as mentioned above, there was a serious drawback in that it was not possible to make desired copies using the ADF.

According to the present invention, the above-mentioned drawbacks can be eliminated, and in the case of an odd number of originals in a series of multiple sheets, the last copy is ejected outside the machine, so that it can be used in the same manner as in the past.

After the processing in steps 5-13 and 7-14 described above, the transfer paper is in the second paper feed section 23. A flowchart regarding subsequent processing is shown in FIG. 62-1.

When the reset key 119 is pressed (Step 7-15)
, the transfer paper in the second paper feed section 23 is conveyed through the second paper path and discharged out of the machine (Step 7-21).

When the copy key 117 is pressed (Step 7-16), A
If there is a document in the document tray 260-11 of the DF (St
ep7-17), feed the original 5tep7-18),
The second side sawing operation is performed and the transfer paper is discharged outside the machine (Step 7-19). Then, the original is ejected and a series of copying operations is completed (Step 7-20).

If there is no original in Step 7-17, it is determined that the original has been manually set, a copy operation is performed for the second side, and the transfer paper is ejected from the machine (Step 7-20), and the series of copy operations is completed.

Description of sequence> Next, the sequence will be described using FIGS. 36 to 60.

The operation when the power is turned on will be explained. FIG. 36 is a time chart when the power is turned on. When the main SW is turned on, the fixing heater and black developer release solenoid are turned on. Eventually, when the temperature of the fixing device reaches 190° C., the motor is rotated, and after 1 second (·'11), the black developing device pressure solenoid is turned off. As a result, the black developing device moves to the release position and then approaches the drum. Thereafter, when the drum rotates once, the main motor is stopped. Also, if the middle plate of the cassette in the paper feed section is lowered when the motor starts rotating in (c), the middle plates of both the upper and lower cassettes begin to rise. This situation is shown in FIG. Then, stop the main motor after completing the lifting of the middle plate (■
).

FIG. 37 is a time chart of the rise of the middle plate, and is the same for both the F stage and the F stage. When the middle plate rising clutch is turned on, the middle plate begins to rise. Eventually, the output of the middle plate detection sensor becomes 1, and after 0.1 seconds from this point, the middle plate lifting clutch is turned off. -The force paper detection sensor is activated by raising the middle plate.

As shown in Figure 1, if there is paper, it will be detected before the output of the middle plate detection sensor becomes 1.
The positional relationship is such that the output of the paper detection sensor is 1. Further, when the output of the middle plate detection sensor becomes 1, the paper detection sensor is determined, and if it is O, the paper out display is turned on.

Further, if no cassette is installed, this operation is not performed.

Next, the copy operation will be explained. When the copy key is pressed, the main motor, high voltage, and document illumination lamp are turned on. Also, the paper feeding operation and developing device pressurizing operation, which will be described later, are started. After one rotation of the drum, the optical system moves forward and turns on the registration roller tl after the image edge is detected. After that, it will turn off after a period of time depending on the paper size. After that, the optical system comes to the inverted position.

The optical system moves to reverse. The document illumination lamp is turned off after 0.2 seconds. When the optical system returns to the home position, the optical system is stopped and backward rotation begins. It stops after the transfer paper is ejected outside the machine. In the case of color copying, a developer pressurizing operation, which will be described later, is performed.

Next, the pressurizing operation of the developing device will be explained. FIG. 39 is a timing chart when color copying is started with the black developing device set. First, turn the black developer release solenoid ONL to release the black developer from the drum. After the release is completed, the color pressure solenoid is turned on and the color developing device is set on the drum. When copying is completed, the color pressure solenoid is turned off and the color developer is released. Incidentally, at this point, the black developing device remains disabled. In order to replenish color toner smoothly, this is always canceled when color copying is completed (ii).
When starting black or color copying from this state, both developing devices are already released. Further, after black copying, the black developing device remains set on the drum.

Next, the paper feeding operation will be explained. The timing chart is shown in Fig. 40. If the output of the middle plate detection sensor is 0 at the start of copying, the middle plate lift operation is performed in the same way as explained in Fig. 37. After the middle plate and the raising operation are completed, the paper feed clutch is ON
L. The transfer paper begins to move. Thereafter, when the transfer paper reaches the registration front paper sensor, the output of the registration front paper sensor becomes 1, and after a predetermined time, the paper feed clutch is turned off, and the transfer paper hits the registration rollers and stops in a loop state.

Thereafter, as the copying operation progresses, the paper feed clutch is turned on again for a predetermined period of time when the registration rollers are turned on, thereby reducing the paper feeding load on the registration rollers. On the other hand, after that, the control of the middle plate is performed asynchronously with the copy operation, and when the output of the middle plate detection sensor becomes O, the middle plate raising clutch is turned ON, and when the output of the middle plate detection sensor becomes 1, O, 1 Turns off after seconds.

Also, the presence or absence of the cassette is constantly detected, and if the cassette begins to come out, the operation of lifting the middle plate is immediately stopped.

Next, the paper feeding operation for manual copying will be explained.

At the same time as copying starts, turn on the manual feed tray and lift clutch, and start pushing and lifting the manual feed tray. As it rises, if transfer paper is set, the output of the paper detection sensor becomes 1. After a predetermined period of time, the paper feed clutch is turned on and one sheet of paper is fed into the machine. After the time tS until the transfer paper is gripped by the next roller, the first manual feed tray lifting clutch is turned off, and as the manual feed tray descends, the output of the paper detection sensor becomes O. On the other hand, the transfer paper is sent to the pre-registration sensor S7, and a predetermined time after the output of the pre-registration sensor S7 becomes 1, the paper feed clutch is turned off, and the transfer paper hits the register roller, forming a loop and stopping.

Next, the copying of the first side of a double-sided copy of a single will be explained. High pressure, unit, wrap.

Since the movements of the optical system, paper feeding operation, etc. are the same as described above, the movement of the transfer paper after the registration roller 12 is turned on will be explained. FIG. 41 is a timing chart in which the transfer paper is sent to the fixing device when the registration roller is turned on. After that, when the paper passes the paper discharge sensor, the output of the paper discharge sensor S4 changes from 0 to 1-0. At this time, the lateral registration means, which will be described later, is moved to the home position, and after a predetermined period of time, when the transfer paper is gripped by the paper ejection roller 27 at a position approximately 10 mm from the trailing edge, the reverse solenoid is turned on, and the transfer Make the paper switchback. At this time, the second transport latch is also turned on. The transfer paper is sent to the second conveyance section 23, and the second pre-registration sensor S
The output of 5 becomes 1. After a predetermined period of time, the second transport latch is turned off, and the transfer paper hits the second registration roller, creates a loop of about 15 mm, and then stops. At this time, the reverse solenoid is also turned off. Moreover, the second transport section 23 is.

Only transfer paper with a length of approximately 180 mm or more can be fed. In the case of manual copying where the transfer paper size is unknown, the input of the registration front paper sensor S7 is determined after a distance of 180-24 (24 mm is the distance between the registration front paper sensor and the registration roller) from the registration roller 12 on, and if If you don't have paper, the size of the transfer paper is 180mm or less, so
After that, it does not enter the switch pack operation and is ejected from the machine. On the other hand, if there is paper, a predetermined operation is performed because the size of the transfer paper is 180 mm or more.

Next, the first side of multiple copies of a single will be explained.

The movement S of the transfer paper after the registration roller is turned on will be explained. Fourth
Figure 2 is a timing chart showing this. Along with the registration roller ON, the flapper solenoid 29 is turned on, and the later-described lateral registration means (second registration roller 37
) to the home position. After the transfer paper has moved by the distance #, in the case of manual copying, the pre-registration sensor is checked as in the case of double-sided copying described above. If paper is not detected, the flapper solenoid 29 is turned off and the paper is ejected outside the machine. When the transfer paper advances and the output of the paper discharge sensor S4 becomes 1, the second transport latch is turned on. The second transport latch is turned off after a predetermined time t4 after the transfer paper is transported to the second transport section 23 and the output of the second pre-registration sensor becomes 1. The transfer paper forms a loop when it hits the second registration roller 37 and stops. Since the curling state and direction of the transfer paper are different from the case of double-sided copying described above, the value of the time t4 from when the output of the second pre-registration sensor 55 becomes 1 until it stops changes.

Next, the copying operation for both sides of a single copy and the second side of multiple copying will be explained based on FIG. 44. The transfer paper is already in the second conveyance section, hits the second registration roller 37, forms a loop, and stops. When copying starts, the second registration roller clutch and double-sided conveyance latch are turned on, and the transfer paper begins to move toward the second registration roller 12. After 0.1 seconds, the lateral registration adjustment operation, which will be described later, is started with the second registration roller engraved at a position 17 mm from the leading edge of the transfer paper. The output of the pre-registration sensor becomes 1 and the second registration roller clutch and double-sided conveyance latch are turned off at time Tb13. The transfer paper hits the registration roller, creates a loop, and stops.

After that, the optical system starts moving forward, and it is time to turn on the register rollers. After the transfer paper has been fed by about 5 mm, in the case of single-sided copying, the second registration roller clutch and the duplex transport latch are turned on, and the transfer paper advances with the loop reduced by 5 mm. On the other hand, in the case of multiple copying, only the duplex transport latch is turned on, the transfer paper is pulled by the register roller 12, and the second register roller 37 becomes a load.
The transfer paper continues to be conveyed with the loop amount O. Thereafter, the transfer paper passes through a fixing roller and is ejected from the machine, completing the copying process. Further, the time 1b for determining the loop amount before registration is set differently from that in the case of paper feeding from a cassette because the transfer paper conditions are different.

Next, the operation of setting the second registration roller to the lateral home position will be explained. The drive of the main motor is transmitted to the second registration roller via a spring clutch.
By turning on the lateral registration solenoid, it is possible to move in the lateral direction. A lateral registration home sensor for detecting the position of the second registration roller and a lateral registration paper sensor for detecting the transfer paper placed between them are arranged. The second registration roller moves in both directions with respect to the axial direction of the drum, but in order to improve stopping accuracy, it is always stopped by moving in one direction. That is, as shown in the timing chart of Fig. 45, if the output of the lateral registration home sensor is 1 at first, it is stopped when it changes from 1 to O-1, and if it is O at first, it is stopped when it becomes 0-1. let

Next, the lateral registration adjustment operation will be described. In FIG. 47, 37 is the second registration roller.

S8 is a horizontal registration paper plug sensor, and SH is a transfer paper. When the second registration roller 37 is set at the home position, it stops at the center point of its operating range and moves upward, and by turning on the lateral registration solenoid, the arrow shown in Figure 1 → ■
It moves like →■→■. When the second registration roller 37 is stopped at the home position and transfer paper is inserted, depending on the position where the transfer paper enters, the horizontal registration paper sensor may initially detect the paper or not. There is. First, the case where paper is detected will be explained. As shown in FIG. 46, the output of the horizontal registration paper sensor changes from l→0→1 and is stopped. Furthermore, if the transfer paper comes in extremely biased towards the lateral registration paper sensor, there is a possibility that the output of the lateral registration paper sensor will always be 1. Even in that case, the following steps are taken to ensure that the vehicle stops at an appropriate position. That is, as shown in FIG. 47, the arrow ■.

The transfer paper is farthest when it moves in the direction of the arrow ■.If the output of the horizontal registration paper sensor is 1 at this point, it will move in the direction of the arrow ■ from then on, so the output of the horizontal registration paper sensor will be O. It will never be. Also, the most appropriate position is to stop at that point. Therefore, if the time for one cycle of horizontal movement of the registration roller is T, it is 3/4T.

That is, if the output of the lateral registration paper sensor does not become O even if the paper is moved by the time corresponding to the arrows 2 and 5, it is stopped there.

Next, we will first describe the case when the output of the horizontal registration paper sensor is 0, that is, the transfer paper is cutting the horizontal registration paper sensor. At this time, as shown in FIG. 46 (11), the process is stopped when the output of the horizontal registration paper sensor changes from 0 to l. Also, if the transfer paper comes in at an extremely far distance from the horizontal registration paper sensor, the output of the horizontal registration paper sensor will remain at 0. If the output of the lateral registration paper sensor does not become 1 even after moving by 1/4T for the time corresponding to (2), it is stopped at that point.

Next, the operation of the first side of double-sided copying when an intermediate tray is used will be explained. After copying starts, paper feeding, high pressure,
Since the movement of the optical system is the same as described above, the movement of the transfer paper of the first Luzistro roller will be explained. Figure 48 is a timing chart where the flapper frame is activated at the same time as the registration roller is turned on. Turn on the intermediate tray flapper. The transfer paper sent out from the second registration roller passes through the fixing roller and is conveyed as it is toward the intermediate tray. The intermediate tray entrance sensor can detect the number of transfer sheets stored in the intermediate tray, and after detecting the set number of sheets, the operation is stopped.

Next, the operation of the first side of multiple copying when an intermediate tray is used will be explained. FIG. 49 is a time chart showing that the intermediate tray flapper is turned on at the same time as the first roller is turned on to form a paper bus for conveying the transfer paper to the intermediate tray. The transfer paper is sent out from the registration rollers, and when it passes the paper discharge sensor section, the reverse solenoid is turned on, and the transfer paper is switched back and transported to be stored in the intermediate tray, as in the case of single-sheet double-sided copying described above. . At this time, the intermediate tray entrance sensor counts the number of stored sheets, and when the set number of sheets is detected, the operation is stopped.

Next, the operation of the second side of multiple single-sided copying using the intermediate tray will be explained. Transfer paper is already stocked in the intermediate tray, and the transfer paper is set from there to the second conveyance section 23. The situation is shown in FIG. 50. First, the intermediate tray paper feeding rollanoid is turned on. The paper feed roller 5b is lowered by a drive means (not shown), and the topmost transfer paper is abutted against the feed roller 57. Thereafter, the intermediate tray feeding roller tremaid is turned on, and the transfer paper is sent to the conveyance path 59 by the intermediate tray feeding roller 57. When the leading edge of the transfer paper reaches the intermediate tray exit sensor S21, the intermediate tray paper feed roller lenoid is turned off, and the paper feed roller 56 rises to be out of contact with the transfer paper. At this time, the second transport latch is turned on, and...

The above-described operation is started to set the second registration roller 37 to the home position.

The transfer paper eventually reaches the second pre-registration sensor S5, and after a predetermined period of time, the transfer paper hits the second registration roller and creates a loop, then turns on the second registration roller 37, and the transfer paper reaches the second registration roller 12. sent towards.

The subsequent operations are the same as those for the second side of the single multiplex one-sided copy described above.

Next, the operation of replenishing the black developing device 8 with toner from the hopper will be described. In Fig. 51, 301 is a hopper, 3
02 is a screw that stirs the toner in the hopper 301 and sends it to the black developing device 8, and is driven by the hopper motor 300. Inside the black developing device 8, a toner sensor S16 for detecting the presence or absence of toner, a stirring rod 8-b for stirring the toner, and a developing sleeve 8-a are arranged. The stirring rod 8-b is driven by a main motor 18 (not shown),
Its period is 4 seconds. When the toner sensor S16 detects that there is no toner, the hopper motor 300 is rotated to replenish toner. Furthermore, if the toner sensor 516 does not detect the presence of toner even after driving the hopper motor 300 to a certain extent, it is determined that there is no toner in a part of the hopper, and a display is displayed to notify the user. This control will be explained in detail.

The control method during copying and when copying is stopped is different, and when copying is stopped, as shown in FIG. 52, if no toner is detected at that time, the hopper motor 300 is rotated for 10 seconds. On the other hand, if the presence of toner is detected at this time, nothing is done.

Next, the control of the hopper motor 300 during copying will be described. By rotating the Wll wire rod 8b.

For example, when the stirring rod 8-b contacts the toner sensor S16 even though there is no toner, the toner sensor output may indicate that there is toner. This time is a maximum of 1 second. on the other hand.

Even though there is toner, the stirring rod removes toner particles near the toner sensor 516, so the toner sensor output may indicate no toner. The time during which it is detected that there is no toner is 2 seconds at most. Therefore, as shown in FIG. 53, when the toner out signal continues for more than 1 second,
When the hopper motor 300 is driven and the toner presence signal continues for 2 seconds or more, if there is toner in the developing device, 3112 L;
The popper motor 300 is stopped and a hopper no-part timer, which will be described later, is reset.

On the other hand, if there is no toner in the hopper, no matter how much the hopper motor 300 is rotated, the toner sensor S16 will not indicate that there is toner. This detects the absence of toner in the hopper.

The time during which the hopper motor 300 is rotating is measured by a hopper partnerless timer, and when the total time reaches 18 seconds, it is determined that there is no toner in the hopper 300 and a display is performed. How do I reset this timer? t#, when the toner is inserted and when the presence of toner is detected during the above-mentioned copying.

Next, the operation of the blanking LED array 14 will be described. This LED array 14 not only prevents toner from adhering to unnecessary parts of the drum 20, but also allows you to create a white part of about 2 mm at the leading edge of the transfer paper, and to display the inside or outside of the designated area in the area specification mode. Make it white (masking).

trimming). The control timing is taken from the signal from the image tip sensor S2 that detects the position of the optical system 24. A blocking plate 24-a' (FIG. 55) is attached to the optical system 24, and a signal is output by blocking the image tip sensor S2. The length of the shielding plate 24-a is vertical 2, and as the optical system advances, a signal is output as shown in FIG. 56. In Fig. 5-6, the leading edge of the document is exposed at time t8 when the leading edge of the document is exposed to light when the leading edge of the image sensor output is the blurring leading edge signal and the falling edge is the leading edge signal. If the speed of the optical system is vK, then t9=J
12/vK. On the other hand, as shown in FIG. 54, the relationship between the blank LED 14 and the optical axis 305 is as follows.
14 is upstream by sentence 1. Therefore, the blank control is l if the process speed is Vp corresponding to the original.
1/V p needs to be done first. First, control for creating a 2 mm leading edge margin will be explained. As shown in FIG. 57, the optical system is scanned, and the blank LED 24 is turned off after time t9 from the pre-picture destination signal. Here t9 is t9
=12+2/Vx=il/Vp-(X/Vp. Here, α is 1/2 during irradiation of blank LED 14. By doing this, an appropriate tip margin can be obtained according to each magnification. The raking 2 is set so that Ta does not take a negative value even during reduction copying when the speed vK of the optical system is high.

Further, since α does not take a constant value due to variations in the light intensity of the LED array, etc., it can be adjusted from the operation unit as described later.

Next, consider the area specification mode. In FIG. 58, 310 is a document, and the optical system 24 scans in the direction of arrow a. 311 is a copy area 1. For example, the range in direction a is set to 100 mm to 150 mm. In such a case, as shown in FIG. 59, the blank LED 14 is turned off 110 seconds after the first stroke, and from there the time t 11 is turned off.
Later, by turning on the blank LED 14, the 58th
As shown in the figure, an image can be displayed only within the specified area 311.

Here, t10 and t11 are In this case, a desired area can be blank exposed.

On the other hand, in Fig. 58, the part that displays the image is reversed, 31
If the value is other than 1, as shown in Fig. 60, turn off the blank LED 14 after the above-mentioned time t9 from the pre-picture end signal, create a margin at the tip, turn on the blank after time t12 from the 1-picture start signal, and then After time t13, the blank is turned off. t12. t13 is as follows.

Precise area copying can be achieved by subtracting α/Vp when outputting a white image and adding α/Vp when outputting one image → white as described below.

Also, as mentioned above, when specifying areas to be copied in different colors at once, in order to prevent color mixing between one color toner and black toner, each area is narrowed down and copied9. For example, area 311 in Figure 58 is copied in black. , when copying other parts in red, first in black, control is performed as shown in FIG. 59, but tlo is reduced by 1 mm from the above value.

Also, increase the value of 'tll by 1 mm from the above value.
Next, when a color copy is to be made, the blank LED l4 is controlled as shown in FIG. 60, but t12 is made smaller by 1 mm than the above value, and ti3 is made larger by 1 mm than the above value. This results in a 2mmmm domain area in the black and color areas. Even if the resist shifts slightly, the black and color areas will overlap and no color mixing will occur.

Explanation of the mode setting> Figure 11 shows the copy mode when the power is turned on.

Processing when the reset key 119 is pressed or after a certain period of time has passed after copying is completed (auto clear).

12 is a flowchart of processing for inputting double-sided/multiple Φ page quick copy mode and area designation mode.

FIG. 12 is a flowchart showing details of 5tepl-1. The contents will be explained below. Since it has a battery for retaining the contents of the RAM, the contents of the RAM are retained even after the power is turned off. For this.

When the power is turned on, the necessary contents of RAM must be retained and unnecessary contents must be cleared (Step
1-1-1), and sets the copy mode to standard mode (Step 1-1-2). This standard mode has the same settings as the standard mode obtained when the reset key 119 is pressed. This standard mode includes, for example, a set number of copies, one copy, one size copy, a black developer, and a lower cassette selection.

Next, it is determined whether there is any key input from the operation unit lOO (
Step 1-2) Then, it is determined whether the input is related to area registration (Step 5 step 1-3). If the input is related to area registration, the process of Step 5 step 6, which will be described later, is performed. If the reset key 119 is done manually (Step 4),
Processing of 5tepl-7, which will be described later, is performed. Double-sided key 107
．． Page continuous copying key 106. Multiple key 105, image conversion key 103. Binding margin frame erase key 108 If done manually, the process of 5tepl-7, which will be described later, is performed.

5tepl-6 will be explained. Areas 1, 2, and 3 are registered using the setting method described later.

In that case, the contents of areas 1, 2.3 are stored in the RAM shown in FIG. 1.3.

ff114[ffl is a flowchart showing details of 5tepl-7. The contents will be explained below. The contents of the RAM are set to set the copy mode to standard mode (Step 7-1). Then, the copy mode is returned to the standard mode (Step 1-7-2).

When copy mode is set to standard mode, area registration 1,
2.3 is canceled, but the data in the RAM where the area was registered in 5tepl-6 is not cleared. This causes the inconvenience of having to perform area registration again when the reset key 119 is pressed due to a user's mistake. In order to alleviate this problem, the contents of the RAM registered in the area are not cleared. Furthermore, the area registration data will not be changed until the next time the area registration is corrected.

FIG. 15 is a flowchart showing details of 5tepl-8. The contents will be explained below.

When the binding margin and frame erase key are done manually (Step-8-1)
, if any of the above-mentioned copy modes 8.9° and 10.11 is selected (Step 8-17), that copy mode is canceled (Step 8-18).

When using multiple keys manually (Stapl-8-2).

If double-sided/page snapshot mode is selected /St
epi-8-15), and the copy mode is canceled (Stapl-8-16).

When double-sided keys are operated manually (Step 8-3).

<5t if multiple/page continuous shooting mode is selected
apl-8-13), its copy mode is canceled (
Stepl-8-14).

When the page snapshot key is manually operated (Step-8-4) If 3 duplex/multiplex mode is selected (Step 8-4)
-8-11), the copy mode is canceled (
Stepl-8-12).

The image conversion key is input (step-8-5),
When the aforementioned copy mode 6 or 7 is selected (S t
e p 1-8-6), if multiple or duplex or page continuous copying is selected (Stapl-8-9),
Poly II Canceling double-sided/page continuous shooting mode (Ste
pl-8-10).

Also, the image conversion key is input (Step-8-5)
), when the aforementioned copy mode 6 or 7 is not selected (that is, either copy mode 8.9 or 10.11 is selected (Step-8-6)), the binding margin or border erase mode If has been selected (S t e
p 1-8-7), the copy mode is canceled (
Stapl-8-8).

Above, we talked about copy mode interlock (when a certain mode is selected, the previously selected mode is canceled), but it is possible to combine copy modes that are not related to interlock. It means that. For example, duplex and copy modes 8.9. IO, 11, or multiplex and copy modes 8, 9. ．． Any of 10.11 can be combined. By this, color.

Multiplexed or double-sided and masked or cropped copy outputs can be obtained.

Explanation of Density Correction> By the way, the following two methods are generally used in copying machines to optimally set the copy density.

The first method is to set the amount of lamp light for exposing the document to a predetermined value, and the second method is to set the value of the developing bias to a predetermined value.

By the way, what is the rational way to manage these values?

It is preferable to store data on the optimum combination at the time of shipment in a non-volatile data memory within the copying machine, and to adjust the copy density so that the user himself/herself adjusts the exposure dial according to the user's preference. On the other hand, if the process conditions change over time and the actual copied image does not reach the standard density even if the exposure dial is set to the center (standard density value), the configuration should be such that the developing bias value can be corrected. .

However, if the lamp light amount and the developing bias value are stored, for example, in the data RAM, it is necessary to display what value is currently set when adjusting the lamp light amount or the developing bias value. However, unnecessarily increasing the number of LEDs for each display in the operation display section of a copying machine is inconvenient in terms of cost and also leads to a decrease in operability. Therefore, in this embodiment, the developing bias value can be displayed in the exposure amount display segment, and the former is lit and the latter is blinked to make a distinction.

A method of adjusting the exposure amount and developing bias value in this embodiment will be explained using FIGS. 66 to 69.

In FIG. 66, reference numeral 403 is a three-digit segment display corresponding to the magnification display 154 shown in FIG.
It is also possible to display Bis. Further, 404 is a density display LED 162, 406 and 407 are copy density adjustment keys 114, 405 and 408 are copy density correction keys 115.
correspond to each. 401 and 402 are data RAMs for each data stored in a data ROM 440, which will be described later.
441 is a data transfer key for storage, and 409 is an extinguishing key for extinguishing the developing bias value blinking on the density display LED 404.

The keys 401, 402, and 409 may be provided on the operating section shown in FIG. 3, but since they are not normally used, it is preferable to provide them inside the copying machine.

Fig. 67 shows the data RAM 441 used for adjusting the exposure amount or developing bias value. Each numerical value in Fig. 5 indicates each data value on the data RAM area backed up by a lithium battery. -CNT is the exposure correction index, L-INT is the lamp control voltage value corresponding to the exposure correction index, and L-DAC is the value of L-I NT.
This shows an area for storing 1st shift that has been scaled to be set in the bit D/A converter. Similarly D
-CNT is L-CNT, D-Bis is L-INT, D-
DAC is a data table of developing biases corresponding to each L-DAC.

Further, FIG. 68 shows a data ROM 440 for storing standard data regarding exposure amount and developing bias value.1 Each area L-C of this data ROM 440
The NT-D-DAC is connected to each area L- of the data RAM 441.
Compatible with CNT-D-DAC.

Further, each data in the data ROM 440 is set in advance as standard data in order to obtain the optimum copy density, for example, when the copying machine is shipped. All standard data in data ROM 440 is copied to data RAM 441 by pressing data transfer key 402. Also, if you press the data transfer key 401.

Data ROM440c7) zlJ7L-CNT and D-
Only the standard data stored in CNT is stored in data RAM.
441 in the same area.

The aforementioned control unit 60 controls the data RA when executing a copying operation.
The exposure amount and development bias value are determined based on each data stored in M441. FIG. 69 shows the lamp control voltage values and developing bias voltage values stored in the data RAM 441 (7) processor L-INT and D-Bis to the light amount control circuit CVR (not shown) and the high voltage generation head HVT.
This is a circuit diagram for cents. To explain the figure, when the copy key is turned on and a copying operation is started, the control section 60 controls the lamp control voltage and development bias voltage stored in each area L-INT and D-Bis of the data RAM 441 at a predetermined timing. The voltage value is scale-converted to 8-bit data, and set in the area L-DAC and D-DAC, as well as in the pulse width modulator 442. The power of the pulse width modulator 442 is converted into a direct current by a filter 443, and is supplied to the light amount control circuit CVR and the high voltage generator 1VT via a buffer amplifier 444.

Next, a method of adjusting the exposure amount and developing bias value in this example will be explained.

When the copy density adjustment key 406 or 407 is pressed, the value of the area L-CNT of the data RAM 441 is incremented by "-1'° or "+1", and one of the segments 4'!4 corresponding to the value of the area L-CNT is 6 lighting shifts, simultaneous t = area L-I N of data RAM 441
To T.

A predetermined value is subtracted or added. Also, when the data transfer key 402 is pressed, all data in the data ROM 440 is transferred to the data RAM 44.
1, and standard values such as L-CNT=8 and L-INT=75 are written in each area of the data RAM 441, and on the segment 404, the area D-
The area corresponding to the CNT value "8°" will be displayed blinking.At the same time, the area D will be displayed on the segment display 403.
-The value of Bis ``t a o'' is displayed. Then,
When copy density correction key 405 or key 408 is pressed, the value of area D-CNT of data RAM 441 is
``-1'' or +t'', one of the segments 404 corresponding to the value of area D-CNT blinks and shifts, and at the same time, area D-CNT of data RAM 441 is shifted.
A predetermined value is subtracted from or added to Bis. Incidentally, the segment 404 performs a blinking operation during development bias value adjustment in order to distinguish it from exposure amount adjustment. That is, the segment 404 is the copy density correction key 405.
．． When 408 is pressed, a blinking operation is performed, and when copy density adjustment keys 406 and 407 are pressed, a lighting operation is performed. Furthermore, if the blinking operation and the lighting operation overlap, the lighting operation takes priority.

In this example, the blinking of the segment 404 can be turned off using the lights-off key 9, but even if the lights-off key 9 is pressed during the lighting operation, the segment 404 is not turned off.

Further, when the copy density correction keys 405 and 408 are pressed, the value of the area D-Bis of the data RAM 441, that is, the voltage value of the developing bias, is displayed on the 1x male display 403.

Note that this display returns to the original magnification display when the copy key is pressed. To explain an example of adjustment in detail,
First, data RAM 4 is transferred by pressing the data transfer key 402.
41 is initialized, and the standard voltage value of the developing bias "'180" is displayed on the segment display 403, and the part corresponding to the standard value "8°" is displayed blinking on the segment 404. .Next, the standard manuscript is appropriatea
The copy density correction keys 405 and 408 may be appropriately operated so as to obtain the desired density.

As explained below, in this embodiment, the display for the shift amount of the developing bias is also used as the display for adjusting the exposure amount, so the developing bias can be easily adjusted without providing an extra display that is not normally used. can be done.

Description of automatic paper selection mode> Next, we will explain the automatic paper selection mode (
Hereinafter, APS (7-bead) will be explained using FIG. 70.

The copying machine of this embodiment can be equipped with multiple cassettes (paper sizes), and has an AP that automatically selects an appropriate paper cassette according to the set original size and the specified magnification ratio.
It has an S mode. Key 411 in the figure, LE
D412.

413.414,415,416. Each of the keys 417 has a key 124° LED 165, shown in FIG.
156, 157, 158, 159, corresponding to keys 113.

In FIG. 70, a key 411 is a key for selecting and canceling the APS mode, and an LED 412 indicates the selected state. The display section 414 is for displaying all cassette sizes currently installed. Further, a par LED 413 indicates the currently selected size among the sizes displayed by the LED 414. However, if there is no paper in the cassette of the selected size, the LED 413 will not light up. An LED 415 indicates which cassette loading port (including the manual feed port) is currently selected, and an LED 416 lights up when there is no paper in the selected cassette. 417 is a cassette selection key, and each time the key 417 is pressed, the LED 415 changes to 1.
The lighting will shift from bottom to top one by one.

In the copying machine of this embodiment, when the cassette selection key 417 is pressed after the APS mode is selected, the APS mode is canceled and the LED 412 is turned off. If the original pressure plate 34 is open when the copy key is pressed, the original size cannot be detected, the APS mode is canceled, and paper is fed from the lowest cassette.

By the way, the copying machine of this embodiment can deal with various inconveniences that may occur when selecting the APS mode, such as when the optimal paper cassette to be selected does not exist, or when the document size cannot be detected due to some circumstances. It is structured like this.

Hereinafter, a method to deal with the case where the APS mode cannot be executed smoothly will be explained.

(1) When the document size cannot be detected --- Release the APS mode and select a predetermined priority cassette (for example, the lowest cassette).

(2) When power is turned on, auto clear temporary, reset key 1
When 19 is pressed, if a plurality of single paper cassettes are not loaded, the APS mode is canceled and the only loaded cassette is selected.

(3) When no cassette is installed, the APS mode is canceled and a paper out display is displayed (LED 416 lights up) with a predetermined priority cassette selected.

(4) When only one paper cassette is present and a cassette loading slot with no cassette is selected (no paper is displayed by the LED 416).

When the APS key 411 is pressed, the APS and LED 412 are turned on at the timing of the press, then the only existing cassette is selected and the out-of-paper display is turned off, and then the APS LED 412 is turned off and the APS mode is canceled. do.

Explanation of Memory Diagnosis> Next, a nonvolatile data memory diagnosis method in this embodiment will be described with reference to FIGS. 71 to 73.

The copying machine of this example has a nonvolatile data memory 421,
Various control constants 1 such as high voltage output values, exposure voltage values, registration correction values, etc. are stored in the memory area, and these control constants are read out as appropriate to execute the copying operation.

Furthermore, the copying machine of this embodiment has a function of diagnosing whether or not each data read from the non-volatile data memory 421 is correct as described above, and it is possible to add such a diagnosis function. This further increases the reliability of installation.

In FIG. 71, 421 is a static RAM (nonvolatile data memory) with a standby function for storing various control constants, and 423 is a CPU that performs various controls such as sequence control based on the data stored in the RAM 421. (Responsible for the control unit 60 in Fig. 2.)
, 422 are lithium batteries, which are used as a backup power source for the RAM 4210. Power supply 5v is RAM4
21, n=O, and RAM42
1 can be accessed by the CPU 423, but when the 5V power is cut off by turning off the power switch, etc., σT goes to a high level and a holding current is supplied to the RAM 421's port (VDD) from the lithium battery 422. be done. As a result, even if the current is cut off, the RAM42
The data of 1 will be held by the lithium power supply 422.

Further, in this example, the output voltage of the lithium battery 422 can be monitored by the microprocessor (CPU) 423 when the power supply +5V is in the active state.

In FIG. 72, 428 is a parallel I10 port connected to the CPU 423, and the latching relay 426 can be driven by its output. On the other hand, latching relay 4
What is the condition of 26?

CPU 42 via the parallel I10 port 428 mentioned above.
3.

Further, 427 is a button switch for releasing the latching relay 426, which is used when it is desired to initialize the data RAM 421.

Next, the backup power supply 422 and RAM 42 are executed by the CPU 423 using the flowchart in FIG.
The diagnostic operation No. 1 will be explained in detail.

First, in step 430-1 when the power is turned on, the CPU 42
Data retention power supply 4 connected to the A/D conversion input terminal of 3
The voltage of 22 is compared with a reference value (for example, 3.OV), and if it is lower than the reference value, the process moves to step 430-6, a data error is displayed, and the user is requested to take action.

Further, if the voltage of the data holding power supply 422 is equal to or higher than the reference value in step 430-1, the process moves to step 430-2, and it is determined whether the latching relay 426 is on.

When the input of latching relay 426 is off, the process moves to step 430-3 and the data stored in advance on ROM is copied to a predetermined area on RAM 421. Then, it is determined whether or not the copied data can be completely read out from the RAM 421 using the output from the ROM (step 430-4).
1 is determined to be normal, the coil of the latching relay is energized in step 430-5.

If the latching relay is turned on in step 430-2, it is assumed that initialization has already been performed, and the process moves to step 430-4, where data at a predetermined address in the RAM and data at a predetermined address in the ROM are combined. Compare and if they match, it is determined that the RAM 421 is normal [
[Effects] As explained above, according to the present invention, sheet processing can be performed appropriately depending on the type of sheet, so jams can be prevented, and even if the length of the sheet exceeds a predetermined value, both sides can be processed. Alternatively, multiple recording can be performed.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view of a copying apparatus to which the present invention can be applied; FIG. 2 is a schematic block diagram showing the configuration of the apparatus shown in FIG. 1;
FIG. 3 is an external view showing the operation panel of the device shown in FIG. 1;
Figure 4-1 is a diagram showing an LED array and its driving circuit;
Figure 4-2 is a diagram showing the irradiation of the LED onto the drum.
-3 is a diagram showing the lighting timing of the LED. Figure 5-1 is a diagram showing the configuration of the editor, Figures 5-2 and 5-3 are equivalent circuit diagrams when specifying the X and Y directions of the editor, and Figure 6 (a) is from a single-sided original. FIG. 6(b) is a diagram showing an output example of double-sided copying. FIG. 6(C) is a diagram showing an output example of multiple copying. FIG. 6(d) is a diagram showing an output example of double-sided copying. FIG. 6(e) is a diagram showing an output example of page quick-shot multiple copying, and FIG. 6(e) is a diagram showing an output example of page usage color multiple copying. FIG. 7 is a diagram showing an example of output in image conversion mode. Figures 8 to 10 are flowcharts showing the sequence when toner is out, Figures 11 to 15 are flowcharts showing the initial copy mode input processing, and Figures 16 to $21 are input data from the editor. FIG. 22 is a diagram showing the data storage RAM for controlling the LED array, and FIGS. 23 and 24 are flow charts showing the control of the LED array. Figures 25 and 26 are diagrams showing the strong lighting timing of the LED, Figure 27 is a diagram showing the erasing state by lighting the LED, Figures 28 and 29 are diagrams showing an output example of specifying multiple areas, Figure 30 is a diagram showing another embodiment of the editor;
The figure shows a memory that stores area data. FIGS. 32 and 33 are flowcharts showing a copy operation when specifying an area, and FIGS. 34, 35, and 35-1 are diagrams showing examples of output when specifying an area. 36 to 46, and 48 to 50. 52, 53, 55 to 57, 59 and 60 are diagrams showing the operation timing of each part of the apparatus, FIG. 47 is a diagram schematically showing the second paper feed section, and FIG. Figure 51 is a diagram showing the configuration of the developing unit, Figure 54 is a diagram showing the LED array and exposure position, Figure 58 is a diagram for explaining blank exposure timing, and Figure 61 is a diagram showing the configuration of the automatic document feeder. 62 and 62-1 are diagrams showing the copying operation when using the automatic document feeder, FIG. 63 is a flowchart showing the copying operation depending on the transfer paper size and the number of copies, and FIG. 64 The figure is a diagram for explaining area specification using keys. FIG. 65 is a diagram showing the position of the base pointer, and FIG. 66 is a diagram showing the position of the base pointer, and FIG. 66 is a diagram showing the dark 1r! ", Detailed view of the part related to AI adjustment, FIG. 67 is a diagram showing the data RAM 441, FIG. 68 is a diagram showing the data ROM 440,
Figure 9 is a circuit diagram for setting the lamp control voltage value and developing bias voltage value in the light amount control circuit CVR and high voltage generator (IVT), Figure 70 is a diagram for explaining the APS mode in this embodiment, Figures 71 to 73 are RAM
FIG. 4 is a circuit diagram and a flowchart for explaining the diagnostic operation of No. 421. FIG. 1st illustration 27 diagram 4 a so 5 zso-c required 729-8L'
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IB@MO[ &ri Ei 15 Yumioki 62-1- Foil Figure 63 d4 Figure 68 Procedure 7 City Masashi) R (Voluntary) February 20, 1985 Director General of the Patent Office Mr. Michibe Uga'. 1. Display of +1 yen Patent Application No. 258110 of 1985 2) Invention name recording device 3, person making amendment/relationship with case Patent applicant address 3-30-2 Shimomaruko, Ota-ku, Tokyo Name ( 100
) Canon Co., Ltd. Representative Ryuzo Kaku
Part 4, Agent's residence: 3-30-2 Shimomaruko, Ota-ku, Tokyo 146
, )I\1 ・ ... -, /) 5. Specification subject to amendment 6. Contents of amendment (1) The entire text of the specification will be amended as shown in the attached sheet.

Claims (3)

[Claims] (1) It has a recording means for recording on a sheet and a plurality of storage means for temporarily storing the recorded sheets, and the storage means is selected depending on the type of sheet or the sheet feeding method. recording device. (2) In claim 1, the plurality of storage means feed sheets from there to the recording means again, and one of the storage means has a small number of recorded sheets on its first side.
The other type is a recording device that stores a large number of recorded sheets on its first surface. (3) The recording apparatus according to claim 1, characterized in that a specific recording operation is inhibited when the type of sheet is specific.