JPS62116955A - Image processor - Google Patents

Abstract

PURPOSE:To easily take a copy in complicate mode through an easy operation by specifying a desired mode on a plane board for specifying an original area. CONSTITUTION:The editor 70 on the plane board installed on an original press- contacting plate is pressed with a pen incorporating a switch to specify an area on a tablet basis and then the desired original area is specified. Six kinds of copy modes are selected with area copy mode keys 93-98 provided to the editor 70 to specify a color reproduction copy of the specified area, a copy in the mixed color of different colors, a copy in reproduced colors of the top and reverse, etc., while generating a different sound according to the specification. Thus, a copy in complicate mode is easily taken through the easy operation without operating both editor and operation board.

Description

[Detailed description of the invention] [Technical field] The present invention relates to an original image processing device.

[Prior Art] Conventionally, when specifying an original area using an editor such as a tablet and trying to obtain multiplexed or double-sided images of different colors, it is necessary to use both the editor and the operation section of the recording device. It had to be operated, and the operability was poor.

[Objective] The present invention has been made in view of the above points, and an object of the present invention is to combine designated areas with different colors or perform double-sided recording with a simple operation.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

Overall Description> Fig. 1 is a schematic configuration diagram of a copying machine according to the present invention, in which the main components and various sensor positions are shown at 5l-324. In the central image forming section, 7.8 is a developing device that stores toner of different colors (for example, red and black), and is brought into contact with the drum 18 selectively of the two colors. 3 is a paper feeding unit for feeding transfer paper SH into the machine; a cassette 9 that can be detached from the main body; and their paper feeding rollers 10, 11° sensors S9 to 12, 3;
It consists of 22.23. 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, 101 is a 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.

ioo is an operation unit, 61.62 is a control unit that controls the AC load, and a lamp 24. AC load of heaters 21 and 22, 63
is a motor control section that controls the main motor 18 and the optical motor 19, and HVT is a high voltage generator that controls the chargers 13, 15 .
16 and developing device 7.8. 66 is a load such as a lensoid, a clutch, a 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 brought to a uniform temperature (weight release rotation), and then the main motor 18 is stopped and stands by in a state where copying is possible (standby state). It drives the developing device 7.8 and various transfer paper conveyance 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 begins to rotate in the direction of the arrow. At the same time, high voltage is supplied to the primary charger 13 by the high voltage supply device HVT, uniformly spreading on the photosensitive drum 20. zero-order exposure lamp 24 that provides a charge of
is turned on, the optical motor 19 is driven, and the original placed on the original platen 5 is exposed and scanned in the direction of the arrow, and the photosensitive drum 20J is
: Project to. An electrostatic latent image is thus formed on the photosensitive drum 20. Next, this latent image is developed by the developing device 7 or 8, and transferred to the transfer paper SH by the transfer charger 15. The photosensitive drum 20 is also separated at a portion 16. Next, the residual toner remaining on the photosensitive drum 20 is collected by the cleaner 6, and the erase lamp 28
After the static electricity is uniformly removed by the blank exposure lamp 14, the copy cycle is repeated again.
(LED array) erases unnecessary charges outside the image area. Also, as will be described later, the LED array 14 includes a large number of LEDs.
It is constructed by arranging , and can erase any part of the image. First developer 8. The second developing device 7 selects one of the r rams 20 and 20 according to a selection command from the operating section 100.
In this embodiment, the first developing device 8 is filled with black toner to form the black developing device 8, and the second developing device 7 is filled with color toner to form the 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 developing device release solenoid 31 is turned on, the black developing device 8 is released from the drum, and when the color developing device pressure solenoid 30 is turned on, the color developing device 7 is pressurized against the drum. Also, each developer 7.8
Inside are black toner sensors 516. A color toner sensor S17 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 photosensitive drum
Sensitivity may change as the durability progresses or changes in the environment occur, but in order to cope with this, the sensitivity can be changed by commands from the operation panel 100 (described later).

In addition, the copying machine of this embodiment is capable of not only normal single-sided copying but also double-sided copying and multiplex copying (described later); To cope with this, the conditions of the high voltage applied to the transfer charger 159 and the separation charger 16 are made different between the first side and both sides or the second side during multiple copying. These developing biases, transfer, and separation high voltage values 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. 5
3 is the limiter position (reversal position) at the time of maximum scanning.The optical system 4 reciprocates with a scanning length according to the cassette size and copying magnification based on a command from the control section 60.

(2) Transfer paper control In the paper feed section 3 in FIG. 1, 39 and 311 are respectively:
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.

Hereinafter, since the upper and lower stages perform similar operations, the paper feeding operation for the upper stage will be explained. First, when the cassette 9 is inserted, the size detection sensor S22 reads the size and identifies the size of the cassette 9.
Turn off the paper out indicator, select the cassette size, and turn it on. Next, when a copying operation is started in response to a copy command, a middle plate raising clutch (not shown) is used to raise the middle plate in the ONL cassette 9, thereby raising the transfer paper SH. Transfer paper SH
rises, contacts the paper feed roller lO, reaches a predetermined height, the tray lid detection sensor SIO outputs an output, and turns the clutch off.
At the same time, the paper feed roller 10 is driven to feed the transfer paper into the machine (described later).As mentioned above, the transfer paper in the cassette is raised by the middle plate lifting clutch, and after that, the raised position is maintained and the primary The above rising operation is not performed at the time of copy start. 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 on the clutch in the same way.

Raise it to a specified height.

The transfer paper fed into the machine reaches the pre-registration sensor S7, and since the registration roller 12 is stopped, it makes an appropriate loop and then stops to align the leading edge of the image formed on the drum 20. , by a timing signal from the optical system 4.

The registration rollers 12 are driven to align the leading edges and then send the transfer paper to the transfer section 17. In the transfer section 17 , the image on the drum 20 is transferred to the transfer paper by the transfer charger 15 , and then separated from the drum 20 by the separation charger 16 and sent to the fixing device 25 by the paper transport section 17 . In the 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, and the image is fixed on the transfer paper.
The paper is detected to be ejected, and the paper is ejected from 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. At this time, the middle plate of the cassette 9 set in the upper stage 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 paper from a cassette, and the transfer paper set on the manual feed tray 28 is driven. Raise the paper feed roller l after raising it.
Feed into the aircraft by O.

Next, in the case of multiple copying, the flapper 29 is switched to the position shown by the dotted line by the operation of a solenoid (not shown), and the transferred paper, which has been fed, transferred, separated, and fixed, passes through the path 33 and passes through the second The paper is sent to the paper feed section 23. Second paper feed section 2
In step 3, after the paper is detected by the second pre-registration sensor S5, lateral positioning is performed by the transfer paper edge detection sensor SS, the lateral registration sensor S8, and the solenoid for lateral registration alignment (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 lj crawler 7 in the same manner as in the above-mentioned normal copying operation, but after the rear end 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 density discharge roller 27
The transfer paper is taken out of the machine, turned over by the reverse rotation of the roller 27, and sent to the second feeding section.

Although multiple copying of a single sheet and double-sided copying have been described above, in the case of multiple copying of a plurality of sheets or double-sided copying, the intermediate tray 40 is used. As shown in Figure 1.

The intermediate tray 40 is provided with a paper conveyance path 59, 43 and a tray 53 for temporarily storing transfer paper in an intermediate state. In the case of multiple copying of multiple sheets, the fused transfer paper is partially ejected by the paper ejection roller 27 under the same control as the double-sided copying of the above-mentioned one-sheet copying, and then the paper ejection roller 2
7 is driven in the reverse direction, it passes through the path 33.43 and is stored in the tray 53. After repeating this operation and storing all of the first side in the tray 53, the next copy command causes the second side to be stored in the tray 53.
The paper feed roller 56 is driven via path 59.23.

The second side copy is executed. On the other hand, in the case of a plurality of double-sided copies, the sheets are passed through the paths 33 and 43 from the fixing device 25 by the flapper 29 and stored in the tray 53 under the same control as the one-sheet multiple copying described above. The subsequent operations are the same as in the case of multiple copying described above, and will therefore be omitted.

(3) Explanation of the operation section Next, the operation panel 100 will be explained.

FIG. 3 is an external view of the operation panel 1oO.

In the figure, 101 is a power switch that controls power supply to the copying machine;
Reference numeral 102 is a key for instructing the operation of the sorter, and 103 is a copy image mode selection key, which is used to select the case where a specified area is to be copied in six types of modes (image conversion modes).

104 is a point specified when specifying an area (two points in the X direction).

Point key (described later) for specifying 2 points in the Y direction.

105 is a multiple key for selecting multiple mode.

106 is a continuous copying key for specifying continuous copying which divides the copying area of the original glass 5 into left and right halves and automatically makes two copies;
107 is a double-sided key for selecting the double-sided copy mode; 108 is a key for specifying the creation of a binding margin or border erasure at one end of the copy paper; 1o9 is a zoom key for specifying the magnification in arbitrary magnification steps, for example, in 1% increments; 110 is for specifying the standard reduction magnification. 111 is a key for selecting the same size copy.

113 is a key for selecting a cassette; 114 is a key for adjusting the copy density; 115 is a one-time correction key for changing the copy density specified by the copy density adjustment key 114; (described later)
This is carried out by controlling the lighting voltage of the original exposure lamp 24 and by changing the development 7 heis using the 1 copy 1 density correction key 115.

116 is a clear 7/stop key, which operates as a copy stop key while a copy operation is being executed.

117 is a copy key, 118 is a preheat key.

119 is a key to return to the standard mode, 120 is a power selection key, which switches the developing device 7.8, 121 is a key for inputting the length of the original and the desired length after copying, and setting the magnification. The number of copies is input using the asterisk key 122 and the numeric keypad 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, 131-16
4 is an LED indicator.

131 is the display when using a sorter, sort mode,
LED to indicate group mode.

132 to 137 are LEDs that display the copy mode executed by combining the designated area with the color developer;
3, the LEDs 32 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 LEo for displaying a dimension portion 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;
141 is a quick copy multiple mode 1 display that divides the copying area on the original glass 5 into left and right halves and automatically makes multiple copies in the color specified by the developer selection key 120; 142 shows the copying area on the original glass 5 left and right. This is a continuous shooting color multiplex display in which the image is divided into two parts, and the two developing devices 7 and 8 are automatically switched in sequence to multiplex the two colors. In this embodiment, the left half of the original copy area is copied in black using the black developer 8, and the right half is firstly 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 that 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. 147 uses RDF to copy a double-sided original to both sides. It is a double-sided display. 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 the jam.
Eo.

152 is an LEo that lights up when magnification is calculated using the asterisk key 121; 153 is an LED that lights up when the magnification display 154 is displaying the magnification; 155 is an LED that displays the specified standard magnification mode; It is specified. 156 is an LED that displays what kind of cassette is used for copying, and 157 is an LED that displays the installed cassette. A4 at the bottom
is installed and the lower row is selected, A3 and A4 of 157 will light up.

156, the LED next to A4 lights up.

158 is an LED that indicates whether the manual feed, upper or lower tray is selected, and 159 is an LED that lights up when there is no paper in the cassette or when the cassette is not installed.
, 160 is an LED for displaying the number of copies, 161 is an LED for indicating automatic density adjustment mode, 162 is a density display LED, 16
3 is a standby display LED that lights green when copying is possible and red when copying is not possible.

164 is LEo that displays the color of the designated developing device;
5 is a display indicating automatic paper selection mode.

166 is an LED indicating automatic magnification selection mode. Note that the toner empty indicator 150-1 is the developer switch key 120.
Displays whether there is toner in the specified developing device. That is, when there is no black toner, the light is turned on 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 LED array> 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. 1 is the aforementioned control section.

81 is five PNP transistors.

Each is connected to 7 maids of each LED, and 82 is connected to 24 N
PN) transistors are connected to the cathodes of each LED as shown in the figure.

83 is a transistor. The LED array is composed of 124 LEDs 1 to LHD 124, and the 124 LEDs are arranged in a line over the entire axial direction of the drum 20. In addition, the lengths of the light emitting parts of these LED arrays are set to be longer than the maximum width of the transfer paper. In this embodiment, two LEDs 1, 2.
The LEDs 123 and 124 are set at a portion longer than the pile of transfer paper. Each LED is driven by four lights at both ends of the LED array.
ke, LED l, 2.

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 a 5x24 matrix drive.

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 FIG. 1 is a circuit for switching the power supply voltage to the transistor 81. FIG. 4-2 is an enlarged view of the LED array 14 and photosensitive drum 20. LED array 1
The LED in 4 illuminates the area between A and B on the drum 20. Meanwhile, the drum 20 is rotating in the direction of arrow C. Considering the above-mentioned copy mode with area specification, the drum 20
When erasing the area after point A above, the timing signal from the control unit 60 aligns the position to point A and the LED starts to light up. That is, the LED lights up when the LED shown in FIG. 4-2 is at point A and point B. At this time point A and B
Of the light and time that the drum surface receives at a point! ! (energy)
is small at point A and increases toward point B. After point B, the LED continues to light up, so the conditions are the same. For this reason, the charge cannot be removed sufficiently at the boundary between the portion of the image to be erased and the image portion, and the boundary becomes unclear. Conversely, when the LED changes from being lit to being turned off, the image becomes unclear as well. In order to prevent this, the switching circuit 84 is driven at the time when the LED starts to light up and at the time when it goes out.

The voltage is switched to +V2, which is higher than the normally used voltage +Vl, and the amount of light emitted by the LED is increased (strong lighting).

Furthermore, although this LED array is dynamically lit as described above, five digit signals (hereinafter referred to as DG
It is synchronized with the above-mentioned strong lighting time using one unit (referred to as T signal). For example, in Figure 4-3, before time TO, the DGT signal from the transistor 81 is OFF, and the LED is turned off.At time 0 TO, when the lighting starts, five DGTM signals turn on ONI and LED in sequence. .

At this time, the switching circuit 84 also receives a signal synchronized with the series of DGT signal generation times T from the control section 60, and switches to strong lighting.

This strong lighting time is an integral multiple of T, but the LED array 14
It is determined appropriately by the spread of light and the rotation speed of the photosensitive drum.

Explanation of the editor Next, the editor will be explained. The editor 70 is installed on the original pressure plate 34, 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), a pen with a built-in switch (not shown) that presses the surface of the editor 70 when inputting coordinates, and It consists of 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 used not only in the area indicated by the dotted line where the original is placed, but also in 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 Yl and YO since relay 901 remains OFF, which is equivalent to that shown in Fig. 5-3, and the control unit 60 divides the power supply voltage to the coordinate in the Y direction. First, the control section 60 applies a voltage between 901 and X1 to X0 to the relay, which is equivalent to that shown in FIG. 5-2, and similarly reads the coordinate in the X direction. 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. In addition, when specifying copy mode, the buzzer is set to 60m5. When inputting area coordinates, the buzzer is set to 30m5. 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 entering the coordinates of the editor area is.

Although it is 432X297mm, considering the error of the editor,
The maximum or minimum value was set to 5 mm inside the area. 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.

Mode 1. Single-sided original → double-sided copy (LED l 45 lights up) As shown in FIG. 6(a), a double-sided copy is 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 2゜ Page continuous copying → double-sided copy (LED 146 lights up) As shown in FIG. 6(b), double-sided copies are obtained from sides A and B of a double-page spread document.

In other words, set the two-page spread document on the document table, and press the copy key 1.
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 30 Single-sided original→Multiple copy (LED 140 lights up) 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, and then the B original is set on the original platen, 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 FIG. 6(d), A of the two-page spread manuscript.

Obtain multiple copies from side B. That is, when a two-page spread document is set on the document table and the copy key 117 is pressed, 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. Page continuous color multiplex copy (LED l
42 lights up) As shown in FIG. 6(e), side A of a two-page spread document is copied in black and side 8 is copied in color to obtain a color multiplex copy.

This is a mode in which side B is made a color copy during page speed multiplexing. Also, side A may be a color copy.

Mode 6: A mode in which the color within the specified area is colored and the color outside the area is black.

(LED l 32 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 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 l 33 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 134 lights up) As shown in FIG. 7(C), the color within the designated area is copied in color. 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 l 35 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 in which the color within the specified area is made black (LED 136 is lit), as shown in FIG. 7(e), the color within the specified area is copied to black. When a document is set, an area is specified, and the copy key 117 is pressed, an image is formed in black on the transfer paper within the area.

Mode 11. A mode in which the color outside the specified area is made black (LED 137 is lit), as shown in FIG. 7(f), the color outside the specified area is copied to black. When a document is set, an area is specified, and the copy key 117 is pressed, an image is formed on the transfer paper in black on the portion outside the area.

Due to the mechanism of the copying machine, there are only two paper paths, so modes 1 to 7 above and single copy are used.

Continuous page copying, P! You can select only one of the following: 1 double-sided original → double-sided copy.

For modes 6 to 11, if two or more are selected, the image will be inconsistent, so only one can be selected.
~11 modes and binding margin key 148/frame erase 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) When using DF, when an original is set on the DF original feed tray, the original is automatically fed and set at a predetermined position on the original tray 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. The DF then ejects the original.

Next, in the same way as above, set the original on the DF original feed tray and let the original be automatically fed.

The main body starts copying the second side. At this time, the transfer paper is fed from the intermediate tray 40 or the second paper feed section 23, where the first side has been completely copied and stored.

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.
The document may be set using F, or by using DF for the first side and manually for the second side.

(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, when the copy key 117 is pressed again, the copying operation for the second side is started. At this time.

The original may be set manually or an ADF may be used.

(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 multiple 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 the intermediate tray 40, 4 m! m, and complete the copy operation.

(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 "1" because document replacement is required.

(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, if the paper size is unusable in the intermediate tray 40 and the filter paper size is usable in the second paper feed section 23, the possible number of copies will be "1".Also, when feeding transfer paper from the manual feed tray 1 , the intermediate tray 40 cannot be used because transfer papers of different sizes may be stacked thereon.

When the intermediate tray 40 is used in a multiple-duplex 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 515 (shown in the first diagram), and turn on the power switch 101 to resume copying. It becomes possible. Then, the copy mode returns to the one 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 in S15, and turn on the power switch 101 to return to a copy ready state. Become. At this time, the copy 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, a copy operation for the second side is then performed. In mode 1.3, when the copy key 117 is pressed after replacing the original, the second side copy operation is performed, and when the stop key l16 or the reset key 119 is pressed in the copy ready state after clearing the jam, the user determines that it wants to cancel the copying of the first side, displays the number of transfer sheets in the intermediate tray 40 on the number-of-copies display section 160, and enters a state of waiting for copying of the second side.

When 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. If you press the copy key 117 here, the copying operation will be performed until there is no more transfer paper in the intermediate tray 40. If there is no transfer paper in the intermediate tray 40 when the copy is ready after the jam has been cleared, the copying operation will be 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 RD and 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, and 8.9.

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 continues, the mixture ratio of toner and carrier becomes abnormal, and the carrier of the color developing device adheres to the drum, causing adverse effects such as scratches on the drum. However, when the transfer paper is stored in the second paper feed section 23, the single copy mode is used, and since the amount of color toner consumed is small, a series of copy operations is completed.

When copying using RDF, the value calculated by counting the number of remaining original sheets is multiplied by the value of the set number of copies, and if the value is less than a predetermined value, the copying operation is interrupted even if no color toner is detected during copying. Without.

After detecting the absence of color toner during copying of the second side of double-sided/multiple copying that completes copying up to the last document, the user turns off the power supply 101 and replenishes color toner. At that time, the transfer paper stored in the intermediate tray 40 or the second paper feed section 23 may be removed and copying may be interrupted. Therefore, if there is no transfer paper in the intermediate tray 40 or the second paper feed section 23 when the power switch 101 is turned on, it is impossible to continue the copying operation, so the copying operation goes into 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, which will be explained first.

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 (
301-3), and prohibits the start of black copy and two-color copy (301-4), that is, input from the copy start key 117 is not accepted. Also, if there is black toner, turn off the toner out LED 150-1 (301-6)L, and cancel the copy start prohibition for two-color copying and black copying (301-7).The detection of the presence of toner is well known. It is done in this way. In addition, even if the toner is detected, it does not mean that the toner has completely run out; in fact, in the case of a color copy in which the 0 color developer is selected, in which the toner is detected with some margin, the color developer selected is the same as in the case of a black copy. If there is no color toner, LED150-1
301-9), prohibit color copying and two-color copying (301-10), and cancel these if there is toner (301-12.13). in copy mode 5, 6.7.

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, toner is present. If it is detected that there is no toner, it is determined in 302-7 whether or not the mode is multiple duplex or multiple copy mode using an intermediate tray. is 3
A copy interruption command is set in 02-5. In addition, 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 the toner runs out in multiple single-sided copy mode using a one-color developer, 302-1→
It passes through 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. 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 1 to this color copy counter (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
-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 so 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.

In addition, when toner runs out during copying, two developing devices can be implemented compactly without compromising copying operability by distinguishing whether to continue copying or to stop copying according to the developing device copy mode being used at the time. be able to.

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 (
301-3), and prohibits the start of black copying and the start of two-color copying (301-4), that is, the input of the copy start key 117 is not accepted, and if there is black toner, no toner is present. The 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. In addition, even if the toner is detected, it does not mean that the toner has completely run out; in fact, in the case of a color copy in which the 0 color developer is selected, in which the toner is detected with some margin, the color developer selected is the same as in the case of a black copy. "Color" If there is no 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 the black and color developing devices are used alternately in copy modes 5 and 6.7 described above 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 lOO 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 to interrupt the copying is set (302-5), and if it is a color copy, toner is present. 303-6 determines whether
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 the above embodiment, when copying is performed using a color developer, copying is immediately interrupted due to the lack of color toner, but when the set number of copies 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 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, change this color copy counter to l plus 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-
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
% or more, perform the same processing as the normal mode above, and reduce the value 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 so that copy start is possible 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 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.

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 it is a region coordinate, turn on the buzzer for 30ms e
c.Sound (Step 4-3).

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

5 steps to determine whether the input data is key human coordinates
4-1) If the key coordinates are manually operated, the buzzer will sound for 60 m5ec (Step 4-6).

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

Next, Steps 4-3 to 4-7 (7) will be detailed. FIG. 17 is a flowchart of 5tep4-3. First, turn on the buzzer (5 steps 4-3-1). Then, in that state for 30m5ec (St
ep4-3-2) and turn off the buzzer 5tep4
-3-3) Stop the buzzer.

FIG. 18 is a flowchart of 5steps 4-7.

First, turn on the buzzer (5 steps 4-7-1). And 60ms ec in that state (Step 4
-7-2), then turn off the buzzer and stop the buzzer (
Step 4-7-3) As shown in Steps 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 area coordinates. This is to make the user reconfirm the input mode and reduce erroneous operations. In addition, as another example,
Instead of sounding a buzzer, it is also possible to set different times for turning on and blinking LEDs.

FIG. 19 is a flowchart showing details of 5tep4-4. Here, the range of area coordinates of the editor is assumed to be the length in the X direction as the intersection x, and the length in the Y direction as IV. First, it is determined whether the input data X in the X direction is within 5 mm of the range of the area (Step 4-4-1), and if it is within 5 mm, the input data X is set to 0 (Step 4-4-2). )
. Determine 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 O (Ste
p4-4-4), if the input data X is equal to or larger than Ax-5 mm (Step4-4-5).

Set input data X to lx (Step 4-4-6)
, if the input data Y is lly-5mm or more (Ste
4-4-7), set input data Y to iy (St
ep4-4-8), 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/trimming area. .

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 statement x in the X direction and the length statement y in the Y direction are set to the document size. When this is implemented, in the above implementation method, MC, 5tep4-4-6°5tep4
Since the -4-8 correction was performed uniformly regardless of the document size, it was not effective for documents smaller than 1X and AV.

However, if the original size can be detected, corrections of 5 steps 4-4-6 and 5 steps 4-4-8 can be made according to the original size, and image formation by masking Φ trimming will be better than in the above embodiment.

The data corrected in step 5step 4-4 is stored in the RAM. By using the trimming/masking image forming method described below, masking/trimming of a plurality of areas that are separated from each other or that overlap is possible.

FIG. 20 is a flowchart showing that area coordinates, color mode, and multiple mode can be input from the editor.

If the input data is the area copy mode key 93 (Figure 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 (Step
4-7-2), the copy mode of mode 5 described above is selected (Step 4-7-10).

If the input data is the area copy mode key 95 (Step
4-7-3), the above-mentioned (7)%-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 above-mentioned copy mode 3 is selected (Step 4-7-19).

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

If the input data is the area copy mode key 98 (S t
e p4-7-6), the aforementioned (7) mode 1 (7) copy mode 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 is O (Step 4-7-14), and if the area is O, set the copy prohibition flag. Set (S
tep4-7-16).

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. 5step 4-7-12),
When selected, the selected mode is cleared using keys 91, 93-98.

With the above, you can specify the area from the editor,
Color mode and multiplex mode can be selected.

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 (step 12-1), and if it is set, determine whether the copy prohibition flag is set.
tep12-2), 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. because.

When invalid area registration is executed due to user error,
This is to inform the user.

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

Trouble (Press asterisk key 121 trouble, numeric key 1
Press the field of 22, 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 key (2) (press (3) 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 numeric key 122 times instead of ■ on numeric keypad 122, the correction value of the editor input will be
This means that it has been changed to mm. This means that the correction of the editor input is not performed.As 0 or more means that the correction of the editor input is not performed, the correction of the editor input is performed according to Steps 4-4-1 and 4-4-3 in the flowchart of FIG. 4-4-
This means that the value of 5 mm shown in 5.4- and 4-7 has been changed.

Explanation of area specification using Kugo > Next, section 6 about specifying area using keys and inputting coordinates.
This will be explained using FIG. 4 and FIG. 65. An area memory (not shown) stores in advance a 3 m rectangular area 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 is pressed once, LED 138-1 (Fig. 64) lights up, and in this state only area 1 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, LED138-1.138-2,138
-3 lights up, and in this state areas 1, 2.3 become valid. When you press the button a fourth time, all LEDs 138 turn off 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. Each time you press 8, the area
, 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 xl, and the coordinates of xl can be input. At this time, the currently stored x
The data of l is displayed on the magnification display section 154. In addition, xl
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 y coordinate of the lower left corner, and Y2 is the y coordinate of the upper right corner.

When changing the xl 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 1 display section 15
Increase or decrease the value displayed in 4.

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 x1 to Y2
39-1-139-4 goes out.

Note that when the base pointer is not selected, that is, when the LE
When all of D138-1 to 138-3 are off, the data of XI-Y2 cannot be changed even if the point key 104 is pressed.

Furthermore, when the point key 104 is pressed, the LED 138 of the selected area flashes, allowing the user to confirm the value of the base pointer. When the storage of data up to Y2 is completed, the LED 138 of the selected area changes from flashing to lit, but the base pointer does not change unless the area key 128 is pressed.

Also, if you press the area key 128 while the X 1-Y 2 (7) LED t 39 is blinking or lit, the base pointer will move to the next area, but the base pointer will not be specified in area 3. If you have
Data change mode is canceled.

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

FIG. 22 shows a portion of the RAM, in which an area necessary for control is secured. In order to simplify the explanation, the number of areas that can be specified is set to two here. 200-5 stores the data of the area set by the operation unit 100 or the editor 70; 200-1 is the start data of the area O in the X direction (optical system scan direction);
0-2 is the end data of area O in the X direction, 200-3 is the start position data of area O in the Y direction (vertical direction), 200
-4 is the end data of area O in the Y direction. Four pieces of data are set for one area, and area 1
The same applies to 200-6 is 200-3.

200-4 (7) Data compatible LED (7) ON1
This is 0FF data, and 5×24 bits are provided on the wood grain side, and 1 bit corresponds to one LED.

For example, 100°200-4 to 200-3 (YOE)
When (YOE) is set to 200, the LED array 14 has LEDs arranged at a pitch of 2.5 mm, so 200-6 is 100/2.5 = 80 from the 40th bit. The first bit is 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 turned on dynamically, and as described later, the data in this area is output in correspondence 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 advances to 201-2 and the LED output data 200-
Set all l to 9. This causes all LED arrays 14 to light up and all images to be erased. If it is not an intra-area copy, the process advances to 201-3 and all 0s 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 or not it is the start timing in the X direction of area O, and N
If it is O, 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, proceed to 201-18 and similarly determine whether it is the start timing in the X direction of area l. If NO, proceed to 1f.
At 201-20, it is determined whether it is the end timing of zlJ71 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 0 is reached, the process proceeds from 201-4 to 201-5 and performs a series of processes.

In 201-5, it is determined whether the start timing in the direction of area 0 is within area 1, and if -YES, 201-6
In this case, area O and area 1 overlap, so area 0 LED is used for LED output buffer 200-8.
Set the logical sum of data 200-6 and area 0 LED data 200-7 and proceed to 201-8, while 201-5
If NO, the starting position in the X direction of area 0 is area 1.
This means that they do not overlap. Therefore, the LED output data 200-8 includes the LED data 200-8 of area O.
Set the contents of 6 as they are. 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 advances 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 example above <200-3.100 to 200-4
, 200, the LEDs at the positions in the Y direction corresponding to 100 to 200 are turned off and the other LEDs are turned on, so that images are output only inside the predetermined area. Also, as will be described later, since only the output current switching flag 200-11 was set, the previous LED array 1
In the lighting state of 4, the lighting state of the LED array 14 is switched after one cycle of digits 0 to 4 is strongly lit. On the other hand, if it is determined in 201-8 that it is not an intra-area copy, the process advances to 201-11, where both the output data switching flag 200-10 and the output current switching flag 200-11 are set. The LED output buffer is not inverted, so as in the previous example <200-3°200-4
If 100, 200 is set to 100, 200, 1 in the Y direction
Only the LEDs in the portion corresponding to 00 to 200 are lit, and the image in that portion is erased. Also, since both the output data switching flag 200-10 and the output current switching flag 200-11 are set, the lighting state of the LED array 14 is switched from the next digit O timing, and only for one cycle, as described later. It will be in a strongly lit state. and 20
Return to 1-4.

Next, a case where the end timing of area O in the X direction is reached will be explained. 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 position and end position of area 1. If YES.

Proceeding to 201-14, the copying of area O 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 in 01-13, proceed to 201-15, since the end position of area O in the X direction is not included in any area, L
All 0s are set in the ED output buffer 200-8.

Next, in 201-16, it is determined whether or not it is a medium copy, and if it is a medium copy, the process advances to 201-17, where the contents of the LED output buffer 200-8 are inverted as before. And 201-
1 '1 sets the output data switching flag 200-10 and the output current switching flag 200-11, and returns to 201-4. On the other hand, if No in 201-16, the process advances to 201P10, only the output current switching flag is set, and 201-
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 O described above is performed.

This is a process in which the area numbers 0 and 1 are changed, and the explanation will be omitted.

Also, if it is the end timing of area 1 direction, 2
Proceeding from 01-20 to 201-21, here the process is performed with the area numbers O and l changed from the case of the end timing of area O in the X direction described above, and when the timing of reversal comes as the optical system scans. , 201-22 to 201-
Proceed to step 23 and input all the LED output data 2oO-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. Digit counter 200-12 is updated at 202-1. In this embodiment, the digits are from O to 4, and the digit counter 200-1
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 0, the process goes to 202-3 to turn off the strong lighting. 202-4 → 202-8 → 202-11
Then, the digit output and segment output corresponding to the digit counter 200-12 are set. For example, if digit counter 200-12 is O, digit O is turned on, and segment output is set to LE.
The contents of the data 200-13 corresponding to the digit) O in the D output data 200-9 are output. If it is 1, the corresponding LED is turned on, and if it is 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 contents of 200-14 corresponding to digit 1 of LED output data 200-9 are output to the segment output. Ru.

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 above is performed until 0, and when it becomes 0, 2
Proceed from 02-2 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 at 202-1o turn on the LED.
The contents of the output buffer 200-8 are transferred to the LED output gator 20.
Set to 0-9. Then, the process of 202-11 is performed and the process ends. And the primary digit counter 200-1
When 2 becomes 0, the process changes from 202-2 to 202-3, and the strong lighting is turned off.Since both flags have already been reset, the process changes from 202-4 to 202-8 to 202-11, and normal processing is performed. Therefore, the LED array output state changes at the timing of digit O, and from there, for one cycle,
The strong lighting turns on.

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

200 when digit counter 200-12 becomes O
-2 → 202-3 and turns off the strong lighting. 202-4
→202-5 and performs the same processing as described above. This time it changes from 202-6 to 202-7 and output data switching flag 2
02-11 is set, and the process ends after passing 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 200-10 is reset, and at 202-10 the output data switching flag 200-10 is reset.
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 O 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 contents of the output current switching flag 200-11, the output data switching flag, and the LED output buffer 200-9 are set according to the image conversion mode.

Strong lighting occurs at the subsequent first digit 0 output timing t
It turns on at 2 and then turns off after one period 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. 0 What changes at time t2 is the end timing of the area for copying within the area and the start of the area for copying outside the area. It's a case of timing. 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 Figure 1, a maximum deviation of 4d will occur. However, as in the present invention, digit 0
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 m> Next, different embodiments of area specification will be described. FIG. 30 shows the editor 250-1, and 250-2 is a section for setting the 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 no specification outside the area, and 2 points for the area specification part 250-3. By pressing the mode setting part after specifying
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
The external heat designation of 0-8 outputs an image in black only outside the set region.

Fig. 31 shows an area data area 251-7 provided in the RAM for storing specified area data. , outer black, etc., and parts 251-2 to 251-5 to store 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.
Additionally, 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.

252-3 feeds the transfer paper from the cassette, and performs a copying operation that fills in only the portion corresponding to the specified fill area with the specified color, as described later.The transfer paper is placed with the copied side facing down. 2 is set in the paper feed section 23.

At this time, the transfer paper is placed at the designated 255 as shown in Figure 35.
Only the -2 part is filled with color, and the other parts are white. 252-4 determines whether there is a color within area or outside color mode specified, and if NO, 25
Proceed to 2-7. If YES, it is determined in 252-5 whether the mode of black inside the area or ring outside the area is specified, and NO.
If so, proceed to 252-7; if YES, proceed to 252-6; therefore, if both color and black copies are to be made, proceed to 252-7.
-6 to copy one color, 252-7
It looks like it's going to move on. 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 to the second paper feed section again with the copied side facing down. 6th set 252
At -8, paper is fed from the second paper feed section, black copy is made in the area specification mode to 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, paper is fed from the second paper feed section 23, a copying 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 black inside area or ring outside area mode is set.

If yes, proceed to 252-11; if not, proceed to 252-12. In other words, if it is necessary to perform both color copy and black copy, proceed to 252-11, and if only one is required, proceed to 252-12. Go forward, 252-11 feeds paper from the cassette.

Copy the specified area in color, and
Load the paper into the paper feed section 23 with the copied side facing down. Next, at 252-8, the paper is fed from the second paper feed section as described above, a black copy is made, and the paper is ejected outside the machine, and the process ends. 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, fill-in copy will be explained.

When filling in the image, by leaving the exposure lamp 24 off, an electrostatic latent image of a dark image is formed on the photosensitive drum 20. Therefore, as explained in the above area copy, by selectively lighting up one 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 it is the area start timing or not, and if NO, the loop is changed by 253-2.After that, when the area start timing comes, 253-3 switches the LED array 14 to the specified rear. Selectively light up according to coordinates in the Y direction.

Next, in step 253-4, it is determined whether it is time to end the area in the X direction. At the end of the area in the X direction, 253-5 lights up all the LED array f14,
Erase 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, and then press the area color designation 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. With these input operations, first the filled part of the area 254-4 is copied, then the part 254-2 is copied in color on the same side, and finally the part 254-3 is copied in black, and then automatically Copying ends. This can be done with very simple operations. In addition, since the filled-in copy is performed first, the original can be copied over the filled-in area, and a good copy can be obtained, for example, when a title section 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 original on the editor many times or on the original platen. 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 1 position designation are added to the recorded portion of the mode 251-1 shown in FIG.

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 of step 2-11 can be done as follows, 10
A color copy is made of only area l at a copying magnification of 0%, 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. In addition, it is possible to specify one position by calculating the difference between the position specification value and the area position and shifting the feeding timing of the transfer paper by the difference (in this example, only in the X direction). Similarly, when specified, for example, if the amount of deviation in the transfer timing of the transfer paper due to the position specification of a certain area is different from the amount of deviation of another area, 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 embodiment, the images of each designated area were multiple-copied onto the same transfer paper, but each area may also be copied onto separate transfer paper, and it is also possible to copy each area onto separate transfer paper. case.

It is also possible for the image in the designated area to appear at the leading edge or center of the transfer paper. By pressing the trouble key 121, pressing (2) 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, and press the numeric key 12.
By pressing 2 (2) 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, press the trouble key 121, press the mark on the numeric keypad 122,
By pressing the print 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 mode 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 transfer paper feed timing is delayed by Xo. If the mode set at the beginning is difficult, the first calculation is performed.

However, i 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 timing of feeding the transfer paper is advanced by ITl.

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, 1. For example, when filing newspaper articles by item,! Multiple articles of issue II 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 output result 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 central portion 35-215 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> This embodiment has two systems of copy paper refeeding mechanisms for realizing double-sided copying or multiple copying as described above. That is, the second paper feed section 23 and the intermediate tray 40
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, it is not possible to store more than one sheet of paper there; on the other hand, the latter allows multiple sheets of paper to be stacked, but the horizontal alignment can only be made to a predetermined fixed size.

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

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 the original. In that case, 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, the process advances to 270-5 and the second paper feed section 23 is unconditionally selected. 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
Repeat loop -7.

The copy operation continues until the set number of copies is completed, and then ends. On the other hand, if the process advances to 270-8, the copy operation is performed using the intermediate tray 40, the set number of copies are made in 270-8, and the transfer paper is set on the intermediate tray 4°.Next, in 270-9,
Intermediate) Re-feed paper from lay 40 and copy the set number of sheets L, 4
Eject it outside and exit.

If it is determined NO in 270-1, proceed to 270-10, determine whether the document is a standard size in 270-IQ, and then proceed to 270-10.
If YES, set the set number of copies to 1 in 270-17 and proceed to 270-18; if YES, determine whether the set number of copies is 1 in 270-11; if YES, 27
Proceed to 0-18 and select @22 paper section 23.

If no, select the intermediate tray 40.

The number of copies is determined at 270-12, and if it is 30 or more, 30 is set as the set number of copies at 270-13.

Next, at 270-14, a 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 exchanged at 270-15 and a copy command is output, copying is performed at 270-18 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.
Copy 70-18 in the same way as 270-5, and 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 universal cassette or manual feed tray, and when copying a single sheet, the paper is placed in 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 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, non-standard multiple copies can be performed one by one using the wIJ2 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.

The operation will be briefly explained here. 26 in Figure 61
0-12 is an ADF that can set multiple sheets of originals and automatically feeds them, 260-11 is an original tray for setting originals, 260-10 is an original sensor that detects originals, 26
0-1 is a paper feed auxiliary roller for feeding the original, 260-
2 is an upper belt, 260-3 is a lower belt, 260-5 is a paper feed roller, and 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 conveyed by the paper feed roller 260-5 and the conveyor belt, and the leading edge of the original is brought to the original platen 5 shown in FIG.
It will stop when it reaches the reference position.

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 260-10 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 ADF originals in double-sided or multiplex mode.

To feed the original (Step 7-1), the original is set in a predetermined position. At that time, the document tray 260
Document sensor 260-1 that detects the presence or absence of a document in -11
o, it is determined whether there is one document or multiple sheets (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
). Then, the original is ejected (Step 7-14) - Also, the transfer paper in the second paper feed section performs a copying operation for the second side in response to the primary copying operation start command, thereby completing a series of copying operations.

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

If Yes in Step 7-2, it can be determined that there are multiple 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 an erroneous original in the original tray 260-11 (Step 7-6), and if there is no original, the original is ejected (Step 7-14).
Complete the series of copy operations.

Also, if there is a document in the document tray 260-11.

Eject the original and feed the next original (Step 7-7)
. Then, it is determined whether or not the next document is in the document tray 260-11 (Step 7-8).

If there is, perform the copy operation for the first side, and then copy the second paper feed section 2.
3, the transfer paper is conveyed (Step 7-9). Then, the original is ejected, the first original is fed, the second side is copied, and the transfer paper is ejected from the machine. And again, 5tep7
- Execute processing from 6.

If NO in step 7-8, the transfer paper will be ejected from the machine after the copying operation for the first side is completed.Step 7-12)
The original is ejected (Step 7-14) and a series of copying operations is completed.

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

For example, when performing double-sided/multiple copying of large-sized originals such as newspapers that cannot be fed by the ADF and originals that can be fed by a regular ADF, conventionally, 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 above, it was not possible to make double-sided copies of double-sided originals using the ADF.

Also, when using the masking/trimming copy mode together to obtain multiple or double-sided copies of two originals, the area specification cannot be specified for the two originals at the same time, so set the originals one by one. However, for the same reason as mentioned above, there was a serious drawback in that the desired copy could not be made 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 step f) Step 7-13 and 7-14 described above, the transfer paper is in the second paper feeding 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 copying operation for the second side is performed, the transfer paper is ejected from the machine (Step 7-19), and the original is ejected to complete the series of copying operations (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 explained 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 one second (■), the black developing device pressure shift/id is turned off. As a result, the black developing device reaches the one-stage release position and then approaches the drum. Thereafter, when the drum rotates once, the main motor is stopped. or,
If the middle plate of the cassette in the paper feed section is lowered when the motor starts rotating in (2), the middle plates of both the upper and lower cassettes begin to rise. This situation is shown in FIG. 37, and the main motor is stopped after the intermediate plate has been raised (■).

Figure 37 is a time chart for the rise of the middle plate, and is the same for both the upper and F stages. 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 061 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 1 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 t1 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 unit will be explained. FIG. 39 is a timing chart when color copying is started with the black developing device set. First, turn on the black developer release solenoid 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 lift operation is completed, the paper feed clutch is activated. 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, the control of the middle plate is then performed asynchronously with the copying operation, and when the output of the middle plate detection sensor becomes 0, the middle plate raising clutch is turned on.
Then, O1 seconds after the output of the middle plate detection sensor becomes 1, it turns off.

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 tray lift clutch and start pushing up the manual 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 manual feed tray rising 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 by turning on the registration roller. 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 switchback operation and is ejected from the machine. On the other hand, if there is one sheet of paper, the size of the transfer sheet is 180 mm or more, so a predetermined operation is performed.

Next, I will explain the first side of multiple copies of a single.

The movement 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 a distance, the pre-registration sensor is checked in the case of manual copying, as in the case of double-sided copying described above. If the paper is not detected, the flapper solenoid 29 is turned off and the paper is ejected to the outside of the machine. do. 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 time t4 from when the output of the second pre-registration sensor 55 becomes 1 until it stops changes in value.

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. After the output of the pre-registration sensor becomes 1 and a time Tb elapses, the second registration roller clutch and both-side conveyance latch are turned off. 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 double-sided transport latch is turned on, and the 5 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 in the loop 51o. Thereafter, the transfer paper passes through a fixing roller and is ejected from the machine, completing the copying process. Furthermore, the time tb 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 horizontal registration home sensor is 1 at first, it is stopped when it becomes 140-1, and if it is O at first, it is stopped when it becomes O→1.

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

S8 is a horizontal resist defect detection sensor, and SH is a transfer paper. When the second registration roller 37 is set at the home position, it is stopped at the center point of the operating range, and by turning on the lateral registration roller 37, the arrow shown in the figure
・Move 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 operation is stopped when the output of the horizontal registration paper sensor changes from 1 to 0-hl. Also, if the transfer paper is extremely biased toward the horizontal registration paper sensor,
There is a possibility that the output of the horizontal registration paper sensor will always be 1. Even in such cases, we do the following to ensure that the vehicle stops at the 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 ■ and ■, it is stopped there.

Next, we will first describe the case when the output of the horizontal registration paper sensor is O, that is, the transfer paper is cutting the horizontal registration paper sensor. At this time, as shown in FIG. 46(ii), the process is stopped when the output of the horizontal registration paper sensor changes from 0 to 1. 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. Even in that case, in order to stop it at the appropriate position,
If the output of the horizontal registration paper sensor does not become 1 even after moving for the time 1/4T corresponding to ■ in FIG. 46, 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. FIG. 48 is a timing chart in which the flapper solenoid and intermediate tray flapper are turned on at the same time as the registration roller is turned on. The transfer paper sent out from the second registration roller passes through the fixing roller and is conveyed directly to the intermediate tray.The intermediate tray entrance sensor can detect the number of sheets of transfer paper stored in the intermediate tray. , after detecting the set number of sheets.

Stop operation.

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 path for conveying the transfer paper to the intermediate tray. When the transfer paper is sent out from the registration rollers and passes the paper discharge sensor section, the reverse solenoid is turned on, similar to the above-mentioned one-sheet double-sided copying.

The transfer paper is switched back and conveyed to be stored in the intermediate tray. 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 multiplex and double-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 feed roller solenoid 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 lenoid is turned on, and the transfer paper is sent out 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 521, the intermediate tray paper feed roller solenoid is turned off, and the paper feed roller 56 rises and is 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 time from there, the transfer paper hits the second registration roller and forms a loop.

The second registration roller 37 is turned on, and the transfer paper is fed toward the registration roller 12.

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 is a toner sensor 316 that detects 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 516 detects that there is no toner, the hopper motor 300 is rotated to replenish toner. Furthermore, if the toner sensor S16 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 1 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. Due to the rotation of the stirring rod 8-b, for example, the stirring rod 8-b contacts the toner sensor 516 even though there is no toner.

The toner sensor output may indicate that toner is present. This time is a maximum of 1 second. On the other hand, even though there is toner, the toner near the toner sensor 516 is removed by the stirring rod, 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, the hopper motor 3
00 and the toner presence signal continues for two seconds or more, it is determined that there is toner in the developing device, the hopper motor 300 is stopped, and a hopper partner no timer, which will be described later, is reset.

On the other hand, when there is no toner in the hopper 8, no matter how much the hopper motor 300 is rotated, the toner sensor S16 does not detect the presence of toner, thereby detecting 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. This timer is reset when the power is turned on and when the presence of toner is detected during 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 areas of the drum 20, but also allows you to create a white area of approximately 2 mm at the leading edge of the transfer paper, and to whiten the area inside or outside the area specified in the area specification mode. (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 shielding plate 24-a (FIG. 55) is attached to the optical system 24.

When this blocks the image tip sensor S2, a signal is output. The length of the shielding plate 24-a is L; L2, and as the optical system advances, a signal is output as shown in FIG. 56.

In FIG. 56, the rising edge of the image sensor output is defined as a pre-image edge signal, and the falling edge thereof is defined as an image edge signal. The leading edge of the document is exposed exactly when the image edge signal is applied. 8 on time is ts=12/V, where V is the speed of the optical system.

On the other hand, as shown in FIG. 54, regarding the relationship between the blank LED 14 and the optical axis 305, the blank LED 14 is located upstream by L;Ll. Therefore, the blanking control needs to be performed 11/Vp earlier than the original, assuming that the process speed is Vp. First, control for creating a 2 mm leading edge margin will be explained. As shown in FIG. 57, the optical system is scanned, and after time t9 from the pre-image destination signal, the blank LED2
Turn off 4. Here, t9 becomes t q=12+2/V=
11/Vp-a/Vp. Here α is blank LE
This is 1/2 of the time during irradiation of D14. By doing this,
Appropriate leading edge margins can be obtained depending on each magnification. fL2 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 l4 is turned off after t10 from the one-picture ahead signal, and from there the time t
By turning on the blank LED 14 after 11, an image can be displayed only in the designated area 311 as shown in FIG.

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 ahead signal, create a leading margin, turn on the blank after time t12 from the 1-picture ahead signal, and from there. Turn off the blank after time t 1G. t12. t13 is as follows.

As described above, when the white image is output, α/V p is subtracted, and when the image is white, α/V p is added, thereby allowing precise area copying.

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 copied. , when copying other parts in red, first in black, control is performed as shown in Fig. 59, but t10 is reduced by 1 mm from the above value.

Also, when performing 8th color copying in which the value of tll is increased by 1 mm from the above value, the blank LED 14 is controlled as shown in Fig. 60, but t12 is decreased by 1 mm from the above value, and tr3 is reduced by 1 mm. Greater than the above value.

This creates a 2 mm white area between 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).

7 is a flowchart of processing for inputting double-sided, multiplex, page continuous shooting 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, 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 1-2). This standard mode is the same setting 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 or not the keys of the operation unit 100 are operated manually (
Step 1-2) and step 3) to determine whether the input is related to area registration. If the input is related to area registration, step 5 step 6 described later is performed. Reset key 119 If manually operated (Stapl-
4), 6 double-sided key 1071 and page continuous copying key 106, which performs the process of 5tapl-7, which will be described later. 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.

FIG. 14 is a flowchart showing details of 5tapl-7t7). The contents will be explained below. Set the contents of RAM to set the copy mode to standard mode (
Stapl-7-■). Then, return the copy mode to standard mode (Step-7-2) - When the copy mode is set to standard mode, area registration 1,
2.3 is canceled, but the data in the RAM that was registered in the area in step 5tepl-6 is not cleared. This is inconvenient as if the user presses the reset key 119 by mistake, the area registration has to be executed again. occurs. To alleviate this problem, the contents of the RAM in which the area is registered are not cleared, and the area registration data is not changed until the area registration is first corrected.

FIG. 15 is a flowchart showing details of 5tapl-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 aforementioned copy modes 8, 9, and 10.11 is selected (Stapl-8-17), the copy mode is canceled (Stapl-8-18).

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

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

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

If multiplex/page continuous shooting mode is selected (St
apl-8-13), its copy mode is canceled (
Stapl-8-14).

When using the page quick copy key manually (Step 8-4) If 1 duplex/multiple mode is selected (Step 8-4)
8-11), the copy mode is canceled (Stap
l-8-12).

The image conversion key is input (Stapl-8-5),
When the aforementioned copy mode 6 or 7 is selected (S t
a p l-8-6), if multiplex, duplex, or page rapid copying is selected (Step-8-9), cancel the multiplex, duplex, or page continuous copying mode (Step-8-9).
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 (Stapl-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, I mentioned the copy mode interlock (when a certain mode is selected, the previously selected mode is canceled).

Items that are not in an interlock relationship mean that a combination of copy modes is possible. For example, a combination of duplex and copy mode 8, 9, 10. , 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 one 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, 407 is a copy density adjustment key 114, 405, and 408 is a copy density correction key 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 storing the data, and 409 is a light-off key for turning off 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, they are preferably provided 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. 1 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 scale-converted values to be set in the bit D/A converter. Similarly, D-
CNT is L-CNT, D-Bis is L-INT, D-D
AC is a data table of developing biases corresponding to each L-DAC.

FIG. 68 shows a data ROM 440 for storing standard data regarding exposure amount and developing bias value, and this data ROM 440 (7) each area L-
The CNT-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.

Areas L-CNT and D-CNT of data ROM 440
Only the standard data stored in the data RAM 441
copied to the same area of

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 is a circuit diagram for setting the lamp control voltage value and developing bias voltage value stored in the memory L-INT and D-Bis of the data RAM 441 to the light amount control circuit CVR (not shown) and the high voltage generator HVT. It is. To explain the diagram,
When the copy key is turned on and a copying operation is started, the control unit 60 converts the lamp control voltage and developing bias voltage values stored in each area L-INT and D-Bis of the data RAM 441 into 8-bit data at a predetermined timing. The scale is converted and set in the area L-DAC and D-DAC, as well as in the pulse width modulator 442. The output of the pulse width modulator 442 is converted into DC by a filter 443, and is supplied to the light amount control circuit CVR and the high voltage generator HVT via a buffer amplifier 444.

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

When copy density adjustment key 406 or 407 is pressed, the value of area L-CNT of data RAM 441 changes to “°-1”°.
Alternatively, it is increased by "+1", and one of the segments 404 corresponding to the value of area L-CNT is shifted in lighting. At the same time, areas L and -IN of the data RAM 441
A predetermined value is subtracted or added to T, and when the data transfer key 402 is pressed, all data in the data ROM 440 is transferred to data R.
The standard values such as L-CNT=8, L-INT=75, etc. are written in each area of the data RAM 441, and on the segment) 404, it corresponds to the value "°8" of area D-CNT. The location that has been touched will flash. At the same time, the value "180" of area D-Bis is displayed on the segment display 403. Then, when the copy density correction key 405 or key 408 is pressed, the value of the area D-CNT of the data RAM 441 is incremented by -1°" or "+1', and one of the segments 404 corresponding to the value of the area D-CNT is is blinking and shifting, and at the same time, area D-B of data RAM 441
A predetermined value is subtracted from or added to is. 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. still.

If blinking and lighting operations overlap, priority is given to lighting operations.

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.

Also, when the copy density correction key 405 or 408 is pressed, the area D of the data RAM 441 is displayed on the 1 magnification display 403.
-Bis value, that is, the developing bias voltage value is displayed.

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, the standard voltage value of the developing bias "180°" is displayed on the segment display 403, and the standard voltage value (i "80°" is displayed on the segment 404.
” blinks. Next, press the copy density correction keys 405 and 40 so that the standard original has the appropriate density.
8 may be operated as appropriate.

As explained above, 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.

Explanation of the automatic paper selection mode> Next, we will explain the automatic paper selection mode (
(hereinafter referred to as APS mode) will be explained using FIG. 70.

The copying machine of this embodiment can be equipped with multiple cassettes (paper sizes), and there is an AP that automatically selects the appropriate paper cassette according to the set original size and the specified magnification ratio.
Key 411 in Figure 0, which has S mode. LED
412°413.414,415,416. key 417
Each of the keys 124°LED1 shown in FIG.
65, 156, 157, 158, 159, corresponding to key 113.

In FIG. 70, a key 411 is a key for selecting and canceling the APS mode, and a 6 display section 414 whose selection status is displayed by an LED 412 is for displaying all cassette sizes currently installed. be. Further, a bar 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.The LED 415 indicates which cassette slot (including the manual feed slot) is currently selected. When there is no paper, the LED 416 lights up. 417 is a cassette selection key, and each time the key 417 is pressed, the LED 415 lights up one by one from bottom to top.

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 deals with various inconveniences that may occur when selecting the APS mode, such as when the optimal paper cassette to be selected does not exist if it falls over, or when the document size cannot be detected due to some circumstances. It is configured so that it can be done.

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
If a plurality of one-paper cassettes are not installed when 19 is pressed, the APS mode is canceled and the only installed 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 as described above is correct, and such a diagnostic function is added. This further increases the reliability of the device.

In FIG. 71, 421 is a static RAM (non-volatile data memory) with a standby function for storing various control constants, and 423 is a CPU for performing various controls such as sequence control based on the data stored in the RAM 421. (This corresponds to the control section 60 in FIG. 2.)

), 422 is a lithium battery, which is used as a backup power source for the RAM 421. Power supply 5v is RAM
421, then τ=0, and RAM
421 becomes accessible by the CPU 423, but when the 5V power is cut off by turning off the power switch, etc., c'F: becomes a high level and R.A.
A holding current is supplied from the lithium battery 422 to the voltage VDD of M421. Even if the current is cut off due to C failure,
Data in the RAM 421 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
The state of No. 26 is read by the CPU 423 via the parallel I10 port 428 described above.

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. They are compared, and if they match, it is determined that the RAM 421 is normal.

[Effects] As explained above, according to the present invention, by using only the editor to specify both color and double-sided or compositing mode, it is possible to specify in - times and copy complex modes easily. become.

BRIEF DESCRIPTION OF THE 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.
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;
FIG. 4-2 is a diagram showing the irradiation of the LED onto the drum. Figure 4-3 is a diagram showing the lighting timing of the LED, Figure 5-
Figure 1 shows the configuration of the editor, Figures 5-2 and 5-
FIG. 3 is an equivalent circuit diagram when the editor specifies the X and Y directions, and FIG. 6(a) is a diagram showing an output example of double-sided copying from a single-sided original. Figure 6(b) is a diagram showing an output example of page quick copy duplex copying, Figure 6(C) is a diagram showing an output example of multiple copying, and Figure 6(d) is a diagram showing an output example of page continuous copying multiple copying. Figure shown, No. 6
rl! J(e) is a diagram showing an output example of page continuous color multiplex 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, Figures 32 and 33 are flowcharts showing the copy operation when specifying an area, and Figures 34, 35, and 35-1 show how to specify an area. Figures showing output examples, Figures 36 to 46, Figure 4
Figure 8 to Figure 50, Figure 52, Figure 53, Figure 55 to Figure 5
Figure 7. 59 and 60 are diagrams showing the operation timing of each part of the apparatus, FIG. 47 is a diagram showing an outline of the second paper feeding section, and FIG.
54 is a diagram showing the configuration of a developing device, and FIG. 54 is a diagram showing an LED array and exposure position. Figure 58 is a diagram for explaining blank exposure timing, Figure 61 is a sectional view showing the configuration of the automatic document feeder, and Figures 62 and 62-1 are copies when the automatic document feeder is used. A diagram showing the operation. FIG. 63 is a flowchart showing a copying operation based on transfer paper size and number of copies, and FIG. 64 is a diagram for explaining area designation using keys. FIG. 65 is a diagram showing the position of the base pointer. 66 is a detailed view of the part related to density adjustment in the operation display section shown in FIG. 3, FIG. 67 is a view showing the data RAM 44L, FIG. 68 is a view showing the data ROM 440,
FIG. 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 the high voltage generator HVT, FIG. 70 is a diagram for explaining the APS mode in this embodiment, and FIG. 71 ~Figure 73 shows RAM42
1 is a circuit diagram and a flowchart for explaining the diagnostic operation of FIG. (C>fnlCohiAl11OIEI&J No. 1/Figure 250-4 30-5250-657) -7232 Ri-
11L J '2'55-2 3rd S-10 3 Momme-15 Z Tilting force towards the outside force=:=Koman 45 figure Hee-H 7ler, I-1 solenoid 1 Yo〒1st tray club $/ R” ■ = 2nd registration row 2
Mouth 2222 Figure 54 Figure 55! 1 Pre-b-go-ji-i-kitsune-! ) 1 sita EΔ15 bow No. 57
Kunihisa 5th No. 3 Departure stuttering power - 1-cho-1-1-1111111 # Bra 2 cum ED ========= Koro=
=l II 6th Theta Danoki 62-1 Mekaku 630 heyl) 4 dl'/ 4z, d23 Procedural amendment (voluntary) February 20, 1985 Director General of the Patent Office Michibu Uga 1, Indication of the case 1988 Patent Application No. 258116 2, Name of the invention Image processing device 3, Relationship with the amended person case Patent applicant address 3-30-2 Shimomaruko, Ota-ku, Tokyo Name (100
) Canon Co., Ltd. Representative Ryuzo Kaku
Part 4. Agent's residence: 3-30-25 Shimomaruko, Ota-ku, Tokyo 148. Specifications to be amended Document 6. Contents of amendment (1) The entire text of the specification will be amended as shown in the attached sheet.

Claims (2)

[Claims] (1) It has a flat board for specifying an original area, and uses the flat board to reproduce the color of the specified area, combine a color different from the color, or specify a mode for front and back reproduction. Image processing device. (2) The image processing device according to claim 1, characterized in that notification sounds are different depending on region specification and mode specification.