JPS62116985A - Image processor - Google Patents

Abstract

PURPOSE:To obtain a desired image without any absence by registering the specification of an original area, etc., and ORing it with an area which is already registered. CONSTITUTION:The original area which is specified by an editor, etc., or reproduction position specification data is registered in a RAM. The contents of the RAM are read out and the registered specified area and the current specified area are ORed to specify a composite area or plural new areas, so that an area specified later is given priority as the composite part. Consequently, the position relation among plural areas is made clear and a desired image having no image absence is obtained.

Description

[Detailed description of the invention] [Technical field] The present invention relates to an image processing device having an area specification function.

[Prior Art] Conventionally, when specifying an area, only one area could be specified. However, as the ability to specify a plurality of areas becomes available, the positional relationship of each area becomes unclear, causing a problem that it becomes difficult to obtain a desired image.

[Objective] The present invention was made in view of the above points, and an object of the present invention is to obtain a desired image without image defects.

〔Example〕

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

Overall explanation> FIG. 1 is a schematic diagram of a copying machine according to the present invention.

In the figure, the main components and various sensor positions are shown at 5l-324. In the figure, 1 is the main body of the copying machine, 2 is an image forming section centered on the photosensitive drum 18, and 7.8 is a developing device that stores toner of a different color (for example, red, black). The drum 18 is selectively brought into contact with the drum 18. 3 is transfer paper 5Ht
- A cassette 9 that is removably attached to the main body at the paper feed section for feeding into the machine and its paper feed roller 10.11° sensor S9
~12. It consists of S22 and S23. 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, 23 is a second paper feeding section which will be described later, and 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. S is $
Sensors shown in Figure 1.

100 is an operation unit, 61.62 is a control unit for controlling the AC load, and a lamp 24. AC load of heaters 21 and 22, 63
is a motor control 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 the developing devices 7 and 8. 66 is a load such as a solenoid, clutch, fan, etc.; 67 is a document processing device; 68 is a sorter; 70 is a coordinate reading device (editor); and 80 is a buzzer.

Next, the operation will be explained.

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

Wait for the fixing roller to reach 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. Drive the fuser 25 etc. to make the rollers inside the fuser 25 a uniform temperature (weight release rotation), then the main motor 18
Stop and stand by in copyable state (standby state)
. Here, the main motor 18 is connected to the photosensitive drum 20 and the fixing device 2.
5. It drives the developing devices 7 and 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 starts rotating in the direction of the arrow. At the same time, high voltage is supplied to the primary charger 13 from the high voltage supply device HVT, and a uniform charge is placed on the photosensitive drum 20. give. Next, the exposure lamp 24
is turned on, the optical motor 19 is driven, the original placed on the original platen 5 is exposed and scanned in the direction of the arrow, and is projected onto the photosensitive drum 2o. In this way, static 1rfL is placed on the photosensitive drum 20.
A latent image is formed. Next, this latent image is transferred to developer 7 or 8.
The transfer paper SH is developed at the transfer/measuring device 15.
The residual toner remaining on the photosensitive drum 2° is collected by the secondary cleaner 6 and is transferred to the photosensitive drum 20 at the separation charger 16, and the erase lamp 2
After the static electricity is uniformly removed by 8, the copy cycle is repeated again. At this time, the blank exposure lamp 1 composed of an LED
4 (LED array) to erase unnecessary charges outside the image area. Also, as will be described later, the LED array 14 includes a large number of LEDs.
D is arranged side by side, and any location in the image can be erased. The first developing device 8 and the second developing device 7 select one of them from the drum 2 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 (abutment) of these developing units to the drum 20 and release thereof are performed by a black developing unit release slide/id 31 and a color developing unit pressurizing solenoid 30. When the black developer release solenoid 31 is turned on, the black developer 8 is released from the drum, and when the color developer pressurizing solenoid 30 is turned on, the color developer 7 is pressurized against the drum. Also, each developer 7.8
Inside are black toner sensors S16. A color toner sensor 317 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 2tHVT. The conditions for this bias voltage are changed depending on when the black developer 8 and the color developer 7 are used in order to optimize the developing conditions for black toner and color toner. In addition, the sensitivity of the photosensitive drum may change as the age progresses or as the environment changes, and in order to cope with this change, 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 151 and the separation charger 16 are made different between the first side and both sides or the second side during multiple copying. These high voltage values for development, image bias, or one transfer separation are determined by commands from the control section 60.

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

St 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. 3
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, 59 and 511 are respectively:
The upper and lower paper sensors, 310° S12, are the 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 322 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 10, reaches a predetermined height, the tray lid detection sensor SIO outputs an output, and turns the clutch off.
F and drives the paper feed roller 10 to supply transfer paper into the machine (described later). As described above, the transfer paper in the cassette is raised by the middle plate raising clutch, and thereafter the raised position is maintained, and the above-mentioned raising operation is not performed at the start of the tertiary copy. Also, if the number of transfer sheets in the cassette decreases during continuous copying and the top surface of the transfer sheet SH drops below a predetermined position, turn the clutch ON.

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 stops.Next, the leading edge of the image formed on the drum 20 is aligned. according to the 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. After the image on the drum 20 is transferred to the transfer paper by the transfer charger 15 in the transfer section 17, it is separated from the drum 20 by the separation charger 16, and then transferred to the paper transport section 17.
The image is then sent to a fixing device 25. Fixer! ! In 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 cassette paper, and the transfer paper set on the manual feed tray 28 is driven. Raise the paper feed roller 1 after raising it.
0 to feed into the aircraft.

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 paper is fed and transferred.

The separated and fixed transfer paper passes through a path 33 and is sent to the second paper feed section 23. In the second paper feeding section 23, after the paper is detected by the second pre-registration sensor S5, the transfer paper edge detection sensor S
6. Lateral positioning is performed using a lateral registration sensor S8 and a 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 t/-32 in the same manner as the operation described above.

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

This reverse drive is performed by a solenoid that controls forward and reverse rotation. The subsequent operations are the same as in the case of multiple copying described above. In this way, in the case of double-sided copying, the ejection roller 27
The transfer paper is taken out of the machine and turned over by the reverse rotation of the roller 27, and is transferred to the second Si! It is sent to the i sending section.

Although multiple copying of a single sheet and double-sided copying have been described above, multiple copying of a plurality of sheets or double-sided copying is performed using the intermediate tray 4o. 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 second side is copied by the first copy command.
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 multiple double-sided copies, the flapper 29 passes from the fixing device 25 through the paths 33 and 43 and is stored in the tray 53 under the same control as J: Note 1. This is the same as for copying, so it is 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 100.

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 quick copy key for specifying continuous copying, which divides the copy 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 duplex copying mode; 108 is a key for specifying the creation of a binding margin or border erasure at one end of the copy paper; 109 is a zoom key for specifying the magnification in arbitrary magnification steps, for example, in 1% increments; and 110 is the standard reduction magnification. 113 is a key for selecting a cassette, 114 is a key for adjusting the copy density, and 115 is a density correction key for changing the copy density specified by the copy density adjustment key 114. In the example of the present invention, this is performed by controlling the lighting voltage of the document exposure lamp 24 (described later) using the copy density adjustment key 114, and by changing the developing bias using the copy density correction key 115.

116 is a clear/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 color selection key, and this key switches the developing device 7.8. 121 is a key to input the length of the original and the desired length after copying, and select the magnification. Asterisk key used when
At 1122, the number of copies is input using the numeric keypad. 123 is self! The AE main key 124 for specifying the density adjustment mode is a key for specifying the automatic paper selection mode for selecting the most suitable 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;
127 is a key for registering a magnification in the memory; 128 is a key for specifying an area to be registered when specifying an area or for calling up a registered area (described later);

131-164 are LED indicators, and 131 is an LEo that displays sort mode and group mode when using a sorter.

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

143 divides the original copy area into left and right halves, and it is not possible to copy two pages with one copy command.
4 is a double-sided quick copy display that uses RDF, which will be described later, to make two one-sided copies from a double-sided original; 145 to 147 are LEDs that display the copy mode regarding double-sided copying; 145 is a duplex copying system that copies each sheet sequentially to both sides. Double-sided mode display, 1
46 is a quick-copy duplex mode display which divides the copying area on the original glass 5 into left and right halves and automatically makes double-sided copies in the color specified by the developer selection key 120, and 147 uses RDF to make double-sided originals double-sided. This is a double-sided display for copying. 14B 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; 1
50 indicates no toner, no control counter, and a warning display indicating a jam.

151 is an LED that indicates the location in case of a jam.

152 is an LED that lights up when the 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 which of the manual feed, upper or lower tray is selected, and 159 is an LEo that lights up when there is no paper in the cassette or when the cassette is not installed.
, 160 indicates the number of copies per copy LE0.161 indicates the automatic density adjustment mode, 162 indicates the density display LED, 16
．． 3 is the standby display LED, which is green when copying is possible.
Lights up in red when copying is not possible.

164 is an LED that displays the color of the specified developing device;
5 is a display indicating automatic paper selection mode.

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.

82 is connected to the anode of each LED, respectively, and 82 is connected to the anode of each LED.
PN) transistors are connected to the cathodes of each LED as shown in the figure.

83 is a transistor. The LED array consists of 124 LEDs 1 to 1, ED124, and 124
The LEDs are arranged in a line over the entire axial direction of the drum 20. Further, the length of the light emitting portion of these LED arrays is set to be longer than the maximum width of the transfer paper. In this embodiment, two LEDs 1 and 2 are provided at both ends of the LED array 14.
．． The LEDs 123 and 124 are set at a portion longer than the pile of transfer paper. Each LED is driven by four transistors on both ends of the LED array, LED1, 2°123.124 is a transistor 8.
3, the remaining LEDs 3 to 1 are driven statically.
22 is turned on by dynamic driving of a 5×24 matrix by transistors 81 and 82.

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. on the other hand,! Ram 20 is rotating in the direction of arrow C. Let's consider the above-mentioned copy mode using area specification.

When erasing the area after point A on the drum 20, the timing signal from the control unit 60 aligns the position to point A and the LE
D 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, the product (energy) of light and time received by the drum surface at points A and B is small at point A and increases as it moves 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. On the other hand, L
Similarly, when the ED changes from on to off, the image becomes unclear. 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, in order to prevent the lighting position from shifting, five digit signals (hereinafter referred to as DG) are driven by the transistor 81.
It is synchronized with the above-mentioned strong lighting time using one unit (referred to as T signal). For example, in FIG. 4-3, the DGT signal from the transistor 81 is turned off before time To, and the LED is turned off. Time T.

As soon as the lighting starts, the DGT signals of 5 trees turn ON in sequence.
Turn on the ED. At this time, the switching circuit 84 receives from the control section 60 a signal in which a series of DGT signal generation times have been opened.
Switch to strong lighting. This strong lighting time is an integral multiple of T, and is appropriately determined by the spread of light from the LED 7 ray 14 and the rotation speed of the photosensitive drum.

Explanation of the editor ■> Next, the editor will be explained. The editor 70 is placed above 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 of coordinate reading. 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. The control unit 60 then turns ON the relay 901 to apply a voltage between X1 and X0, which becomes equivalent to that shown in FIG. 5-2, and reads the coordinate in the X direction in the same way. Based on the read coordinate data, the area coordinates are set and the key force is also determined.

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

The area for inputting coordinates of the editor area is 432x29
7mm, but considering the editor's error, I set the maximum or minimum value to 5mm 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 145 lights up): As shown in FIG. 56 (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. Continuous page 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 the double-page 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 39 Single-Sided Original - Multiple Copy (LHD I 40 Illuminated) 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), a black copy is made on side A of a two-page spread document, and a color copy is made on side B, to obtain a color multiplex copy.

This is the mode in which B[III is used for 8-page continuous shooting multi-color copying. Also, side A may be a color copy.

Mode 6: A mode in which the color inside the specified area is changed to black outside the color area.

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

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

(LED 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 designated, and the coffee key 117 is pressed, an image is formed in color on the transfer paper within the area.

Mode 9. A mode that colors the area outside the specified area. (LED 135 lights up) As shown in FIG. 7Cd), 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 l O, A mode in which the color within the specified area is set to black. (LED 136 lights up) $7 [ffl As shown in (e), copy the color in the designated area to black. When the original 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 4th area.

Mode 11: A mode in which the color outside the specified area is black. (LED 137 lights up) As shown in FIG. 7(f), the color outside the designated 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.

The mechanism of the projector - Is it a paper path? - Because there is no passage, -
Modes 1 to 7 in section h, single copy, page continuous copy 1
Double-sided continuous copying 1 Double-sided original → Double-sided copy: Only one option can be selected.

Only one of the modes 6 to 11 can be selected because selecting two or more will result in inconsistent images. Also 8
~11 modes, binding key 148, frame erasing key 149
For the reasons mentioned above, I can't choose just one.

Select mode 5 to 11 and press color selection key 12 on the 4th floor.
0 is 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, if a document is set on the north side of the DF's document feed table, the document is automatically fed and set at a predetermined position on the document table of the main body. Then, the copying operation for the first side starts, and the copying paper is stored in the intermediate tray 40 or the second paper feeding section 23 under the set copying conditions, and the copying operation for the first side is completed. The DF then ejects the original.

Next, in the same manner as described above, when the original is set on the hill of the DF's original feeding table and the original is automatically fed, the main body starts the copying operation for the second side. At this time, the transfer paper is fed from the first
An intermediate tray 40 in which a complete copy of the face is stored.
Alternatively, it is performed from the second clam paper section 23. When the copying operation for the second side is completed, the DF discharges the original. Then, the series of copy operations is completed.

Also, set the original manually for the first side, and set the original in D for the second side.
Alternatively, the document may be set using the DF for the first side and manually for the second side.

(2) When using the ADF, set the original on the ADF's original feed tray and press the copy key 117 to automatically feed and eject the original. When the first side of the document is completely fed, if there is no second side of the document, the transfer paper is ejected from the machine and the copying operation is completed. However, when there is only one original, it depends on the copy settings.

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

Start copying the second side. At this time, you may set the original manually or use the ADF.

(3) When using RDF When the copy key 117 is pressed, the RDF.

The number of originals is counted by circulating the originals set on the original feed table. 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 or 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 size of the transfer paper is such that the second paper feed section 23 and the intermediate tray 40 cannot be used, the paper is ejected from the outside 411 and the copying operation is completed.

(1) In the case of mode 1 and mode 3 without the inter-φ tray 40, the number of copies that can be set is "1°" because originals must be replaced.

(2) Mode 1 when the inter-φ tray 40 is present In the case of mode 3, since originals must be replaced, the number of copies that can be set is up to the number of sheets that can be loaded on the intermediate tray. However, when the paper size of the intermediate tray 40 is unusable and the paper size of the second paper feeding section 23 is usable, the number of possible copies is "1". Further, when feeding transfer paper from one manual feed tray, there is a possibility that 111 transfer papers of different sizes are loaded, so the intermediate tray 40 cannot be used.

When using the intermediate tray 40 in a multiplex double-sided copy mode other than Mode 1 or Mode 3, the number of copies that can be made at one time is limited to the number of sheets that can be loaded on the intermediate tray.

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

If a jam occurs in a copy mode that does not use the intermediate tray 40 or the second paper feed section 23, clear the jam, press the reset button S15 (shown in the first diagram), and turn on the power switch 101 to resume copying. It becomes possible. Then, the copy mode returns to the one before the Jat occurred. However, the number of completed copies is subtracted from the set number of copies in the number of copies display a t 60, and the remaining number of copies is displayed. 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. Then, in a double-sided/multiple copy mode other than mode 1.3, a copy operation for the second side is subsequently performed. In mode 1.3, when the copy key 117 is pressed after replacing the original, a copying operation for the second side is performed. Furthermore, if the stop key 116 or reset key 119 is pressed in the copy ready state after the jam has been cleared, the user determines that he/she wants to cancel copying of the first side.
The number of transfer sheets in the intermediate tray 40 is displayed on the number-of-copies display section 160, and the state is set to wait for the copying operation of the second side.

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 the copy key 117 is pressed here, the copying operation is performed until the intermediate tray 40 runs out of transfer paper. If there is no transfer paper in the intermediate tray 40 when the copying is possible after the jam has been cleared, the copying operation is completed.

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

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

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

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

Also, when copying using 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 an adverse effect such as scratches on the F' ram. However, when storing transfer paper in the second paper feed section 23, it is in single copy mode and the amount of color toner consumed is small. - Complete the action.

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.

Complete copying up to the last manuscript. After detecting the absence of color toner while copying the second side of double-sided/multiple copying, the user turns off the power 101 and replenishes color toner. At this 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 feeding portion 23 when the power switch 101 is turned on, the copying operation cannot be continued, and the copying operation is put 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.

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 copy and the start of two-color copy (301-4). That is, input from the copy start key 117 is not accepted. If there is black toner, the out-of-toner LED 150-1 is turned off (301-6), and the copy start prohibition for two-color copying and black copying is canceled (301-7). Note that detection of the presence or absence of toner is performed using a well-known method. 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 without toner.

Turn on the LED 150-1 (301-9).

Prohibit color copying and two-color copying (301-10);
Also, if there is toner, release these (301-1
2.13), in which two-color copying is the aforementioned fortune-telling mode 5 and 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 the number of copies will be the same as when the RDF is used.

If the number of originals set before the be-start 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.

Determine whether the calculated total number of copies is 100 or more (302-4), and if it is 100 or more, set a command to interrupt copying midway (3o2=s), and if it is a color copy, use toner. 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. Also, in a mode in which the intermediate tray is not used, and in cases other than the first side of double-sided or multiple copying (302-8-302-5), a copy interruption command is similarly set. Also, if it is the first page, it will be executed without interruption. For example, if 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 developing device, copying was immediately interrupted due to 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 may 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 such that copy start is enabled when the number of sheets is less than a predetermined number.

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

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

Also, if the toner runs out while copying.

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

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

8 and 9 are flowcharts regarding display and copy control in the case of no toner, and FIG. 8 shows processing in a standby state, 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 the start of two-color copy (301-4). That is, input from the copy start key 117 is not accepted. If there is black toner, the out-of-toner LED 150-1 is turned off (301-6), and the copy start prohibition for two-color copying and black copying is canceled (301-7). Note that detection of the presence or absence of toner is performed using a well-known method. Further, even if the toner is detected to be out of toner, it does not mean that the toner is completely out; in fact, the toner out is detected with some margin. In the case of a color copy in which a color developing device is selected, the same applies as in the case of a black copy when the selected color developing device is out of color toner.

Turn on the LED 150-1 301-9) Prohibit color copying and two-color copying (3OL-10). Also, if there is toner, these are canceled (301-12.13).

Among these, 2-color copy means copy mode 5, 6.7 mentioned above.
In this mode, 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 flowchart 1 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 calculation value will be
If the number of originals set in 22 is the number of copies set in 22, and if the number of originals set before starting copying is known in advance, such as when using RDF, the number of copies and originals set in numeric keypad 122 of operation unit 100 will be the same. The number is multiplied by the number of sheets.

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

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

Figure 1O is a flowchart showing an example of this.
Connected to A in the figure. The presence or absence of color toner is determined during copying (303-1), and if toner is present, the color copy counter is cleared (303-2). Here, the color copy counter is a counter for counting the number of copies without toner. If the toner runs out,
Add this color copy counter to +303-3)
, if the mode is other than mead, which copies only the designated area, it is determined in 303-7 whether the copy counter is 5 or more.

If it is less than 5, continue copying, if it is 5 or more, 303-
At step 9, a copy interrupt command is set to interrupt copying midway. In addition, in the area copy mode, the ratio of the specified area to the whole is calculated (303-5), and the ratio is 30
% 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 such that copy start is enabled 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.

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

Explanation of the editor II
It's a chat.

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

Then, the input data from the editor is corrected to obtain a better image (Step 4-4). 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 it is a key manual coordinate, sound the buzzer for 60m5ec (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 5tep4-3(7)70-chart. First, turn on the buzzer 5 steps 4-3-1
) Sound the buzzer. And in that state for 30m5ec (
Step 4-3-2) and turn off the buzzer.
ep4-3-3) Stop the buzzer.

FIG. 18 is a Step 4-7 7e+- chart. First, turn on the buzzer for 5 steps, 4-7-1
) Sound the buzzer. And 60m5ec that state (S
t e p4-7-2), and turn off the buzzer and stop the buzzer (Step4-7-3), Step4
As shown in -3 and 4-7, the lj sound time of the buzzer differs depending on the input of the copy mode and the input of the area coordinates. This is to remind the user of the input mode and to reduce erroneous operations. Further, as another embodiment, instead of sounding a buzzer, it is also possible to make a difference in the duration of one blink of an LED or the like.

FIG. 19 is a flowchart showing details of 5tep4-4. Here, the range of area coordinates of the editor is assumed to have a length in the X direction as an intersection x and a length in the Y direction as iy. First, it is determined whether the input data X in the X direction is within 5 mm from the end of the area (Step 4-4-1), and if it is within 5 mm, the input data X is set to O (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 0 (S t
e p4-4-4), input data X is intersecting X-5mm
If it is above (Step 4-4-5).

Set input data X to lx (Step 4-4-6)
, if the input data Y is ly-5mm or more (Step 4
-4-7), set input data Y to intersection (Step
4-4-8), This is to prevent unnecessary images from being formed on the edge of the copy paper due to error when specifying the edge of the editor area when specifying the area for masking ◆ trimming. .

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 JLx in the X direction and the length ly in the Y direction are set to the document size. If you do this, you will follow the above implementation method, Step 4-4-6.

Since the correction of 5tep4-4-8 was performed uniformly regardless of the document size, it was not effective for documents smaller than IC or IV.

However, if it becomes possible to detect the original size, corrections in steps 4-4-6 and 5step 4-4-8 can be made according to the original size, and image formation in masking and trimming will be better than in the above embodiment. The data corrected by −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 (FIG. 5-1) (SteP4-7-1).

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 copy mode of mode 4 described above 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 aforementioned mode 2 copy mode is selected (Step 4-7-18).

If the input data is the area copy mode key 98 (Step
4-7-6), the above-mentioned (7)%-do117) copy mode is selected (Step 4-7-17).

If the input data is memory key 91 (Step 4-7-7), the registered saletaeliano area is 0.
If the area size is 0, set the copy prohibition flag (Step 4-7-14).
ep4-7-16).

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

If the input data is the clear key 92 (Step 4-7-
8), Determine whether any of the mode keys 91.93 to 98 above is selected.Step 4-7-t2)
, 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 (step 12-1).
tep12-2), -t=nit, prohibits the start of the 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 ■ Trouble (Press the asterisk key 121 Trouble, Ten*-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 (3) (press (2) on the numeric keypad 122 and press the asterisk key 121), the correction value input by the editor is changed to 3 mm. Also, if you press numeric keypad 122 times instead of (2) 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 5.4-4-7 has been changed.

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

Note that the combinations of areas that can be selected are Area 1 only, Area I and Area 2. There are three areas: areas 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 area key 128 is pressed for the second time, LEDs 38-1 and 138-2
lights up, and in this state area 1 and area 2 become valid. When you press the third time, LE0138-1.138-2,13
8-3 lights up, and in this state areas 1, 2.3 become valid. When you press it a fourth time, all 38 LEDs 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. Area l each time you press the button for the first, second, and third time.
, area 2. Area 3 is selected and, as shown in FIG. 65, a base pointer BP indicating the data to be changed is specified.

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

After specifying the area to be changed, by pressing the point key 104, the coordinates to be changed can be selected. First, when the point key 104 is pressed, the LED 139-1 blinks, the base pointer is designated as Xl, and the coordinates of XI can be input. At this time, the currently stored
The data of i is displayed on the magnification display section 154. 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 Xi data, it can be done using the numeric keypad 122 or the zoom magnification key 109. Note that when changing the value using the zoom magnification key 109, the 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 in 4 is stored as data in XI, and the currently stored data in 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, by pressing the pointer ht--104, data can be changed in the order of Yl and Y2. Press point key 109 and Y2
When the data is memorized, the four LEDs X1 to Y2
139-1 to 139-4 go out.

In addition, when the base pointer is not selected.

That is, when all of the LEDs 138-1 to 138-3 are off, the data of X1 to Y2 cannot be changed even if the point key 104 is pressed.

Furthermore, when the point key 104 is pressed, the LED 13B of the selected area blinks, 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 blinking to lighting, but the base pointer does not change unless the area key 128 is pressed.

Nu, X l -Y 2 no LED l 39 (7) l,
Area key 12 when 'zurekaka' is blinking or lit.
If 8 is pressed, the base pointer moves to the next area, but if the base pointer is specified in area 3, the data change mode is canceled.

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

FIG. 22 shows a portion of the RAM, in which an area necessary for control is secured. 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 γ data of area 0 in the X direction, 200-3 is the starting position data of area 0 in the Y direction (vertical direction) 200
-4 is the Y direction end data of area 0. Four pieces of data are set for one area, and area 1
The same applies to 200-6 is 200-3200
This is the 0N10FF data of the LED corresponding to the data of -4, and in this embodiment, it is provided for 5 x 24 bits.
One 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 1, and the other bits are
All 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, data in this area is output in response to each digit.

The transistor group 82 is driven. 200-10゜200
-11 is an output data switching flag and an output current switching flag used when changing the lighting state of the LED array. 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 9 to 1. As a result, all the LED arrays 14 are turned on and one image is completely erased. If it is not an intra-area copy, the process goes to 201-3 and all O's are set in the LED output data 200-9. As a result, all the LED arrays 14 are turned off, and an image appears in all parts in the Y direction. Then, in 201-4, it is determined whether 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 l in the X direction is reached. N.

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

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

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

In step 201-5, it is determined whether the start timing in the direction of area 0 is within area 1.

If YES, proceed to 201-6. In this case, since area 0 and area 1 overlap, the LED output output muffer 20
0 has area 0 LED data 200-6 and area 0 LE
The logical sum of the D data 200-7 is set, and the process proceeds to 201-8. On the other hand, if No in 201-5, the start position of area 0 in the X direction does not overlap area 1 by one point. Therefore, the contents of the LED data 200-6 of area 0 are set as they are in the LED output buffer 200-8.

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 output muffer 200, and 201-10 inverts the output current switching flag 200-1.
Set 1 and return to 201-4. Due to this, 1
For example, in the above example < 200-3. 10 to 200-4
If 0,200 is set, the LED at the position in the Y direction corresponding to lOO~200 will turn off, and the other LEDs will turn off.
will now be turned on, and images will be output only inside the predetermined area. Further, as will be described later, since only the output current switching flag 200-11 is set, the lighting state of the LED array 14 is switched after one cycle of digits O to 4 is strongly lit in the previous lighting state of the LED array 14. 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. Since the LED output header is not inverted, it is
If -4 is set to 100, 200, only the LEDs corresponding to 100 to 200 in the Y direction are lit, and the image in that part is erased. In addition, the output data switching flag 200-10 and the output current switching flag 200-11
Since both flags are set, the lighting state of the LED array 4 is switched from the 5th digit O timing as described later, and the LED array 4 is strongly lit for one period. Then, the process returns to 201-4.Next, the case where the end timing of area O in the X direction is reached will be explained. 201-12 to 201
-13, 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
Set all O's 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, and the contents of the LED output x7a 200-8 are inverted as before. And 201-
In step 11, the output data switching flag 200-10 and the output current switching flag 200-11 are set, and the process returns to 201-4. On the other hand, if NO in 201-16, the process advances to 201-10, where only the output current switching flag is set, and the process returns to 201-4.

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 O and 1 are changed, and the explanation will be omitted.

Also, if it is the end timing in the direction of area l, 2
Proceeding from 01-20 to 201-21, here the process is performed with the area numbers O and 1 changed from the end timing of area O in the X direction described above.As the optical system scans, the timing of reversal comes. , 201-22 Kara 201
-23, all the LED output data 200-9 are set to 1, the LED array 14 is completely turned on, unnecessary images are erased, and the optical system starts to move backward, and the 1 cycle ends.

The same applies when there are three or more areas.

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

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

First, the operation when both the output current switching flag 200-11 and the output data switching flag 200-10 are not set will be described. In this embodiment, the digits are from O to 4, and the digit counter 200-12 is updated at 202-1.
2 is also updated with a value from O to 4. If it is not 0, the process goes to 202-11, and if it is 0, the process goes to 202-3 to turn off the strong lighting. 2o2-4→202-8-202-11
Proceed to.

Here, the digit output and segment output corresponding to the digit counter 200-12 are set to 0. For example, if the digit counter 200-12 is 0, digit 0 is turned on, and the digit of the LED output data 200-9 is set to the segment output. ) data 20 corresponding to 0
Output the contents of 0-13. If it is 1, the corresponding LED is turned on, and if it is 0, the corresponding LED is turned off. And it ends. The digit counter is updated sequentially, and at the first timing, digit l is turned on at 202-11, and the segment output is LED output data 200-9.
The contents of 200-14 corresponding to digit 1 are output.

Next, a case where both the output current switching flag 200-11 and the output data switching flag 200-1o are set will be described. The content of digit counter 200-12 is O
The same process as described above is performed until O is reached, and when O is reached, 2
Proceed to 02-2-202-3 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-Il. Next, proceed to 202-6 → 202-9, reset the output data switching flag 200-10, and at 202-10 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 O, it changes from 202-2 to 202-3 and the strong lighting turns off.

Both flags have already been reset, so 202-4→2
02-8 → 202-11 and normal processing is performed. Therefore, the LED array output state changes at the timing of digit O, and from there on, the 1-strong lighting is turned on for one cycle.

Next, the operation when only the output type flLv1 conversion flag 200-11 is set will be described.

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 0, 2
02-2 → 202-3, and the strong lighting is turned off. 202
-4 progresses from 202-8 to 202-9, output data switching flag 200-10 is reset, and at 202-10 L
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 period of 1 from digit 0 in the output state of the LED 7 ray 14 one cycle before, and then the output state of the LED array 14 is updated.

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

The strong lighting is at the subsequent first digit O output timing t
It turns on at 2 and then turns off after one 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 0, 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, the digit O
By synchronizing with , the deviation is always d as shown in 205-2, so the boundary portion appears smooth. Also LED
Further linearity can be achieved by mounting the array at an angle.

FIG. 28 is a diagram showing the output result when there are two areas in the intra-area copy mode, and the shaded area is the area where the image is output. @As mentioned above, since the logical sum of the two areas is calculated, it is possible to obtain an image of only the desired portion 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.

250-2 is an image conversion mode setting part, 250-
3 is a part for specifying an area.

In the mode setting part, fill specification of 250-4, 2
There are 50-5 internal color specification, 250-6 external color specification, 250-7 area black and white specification, 250-8 external heat specification, and 2 points for area specification 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. , a portion 251-1 for storing modes such as outside points, and portions 251-2 to 251-5 for storing coordinates of designated areas. In the region data area 251-7, a plurality of pieces of data 251-6 regarding one area designation are set. When the two points of area designation part 250-3 are pressed and then the mode designation part of 250-2 is pressed, the mode changes to 251-1.
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 iA searched. 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 designated 255 as shown in Figure 35.
Only the -2 part is filled with color, and the other parts are white. At 252-4, it is determined whether there is a specification of the color within the area or the color mode outside the area, and if No, the 25
Proceed to 2-7. If YES, check 252-5 to determine whether area black and white mode or outside area black mode is specified 1.
If no, proceed to 252-7; if yes, proceed to 252-6
Proceed to. Therefore, if you want to make both color and black copies, 2
Go to 52-6, and if you want to copy one color, go to 252
-7. 252-6 feeds paper from the second paper feed section, performs color copying in the area specification mode to the specified area as described above, and transfers the transfer paper to the second paper feed section again with the copied side facing down. Set. Next 2
At 52-8, paper is fed from the second paper feed section, black copying is performed in the area designation mode on the designated area, the transfer paper is discharged outside the machine, and the copying operation is completed.

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

Perform a fill-in copy, first 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 252-10, it is determined whether or not the area black and white mode or the outside black mode is set.

If it is right, proceed to 252-11, and if it is not, proceed to 252-12. That is, if it is necessary to make both a color copy and a black copy, the process proceeds to 252-11, and if only one is required, the process proceeds to 252-12. 252-11 feeds paper from a 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, paper is fed from the second candy paper section as described above, and the black copy is ejected out of the machine first, and the process ends. On the other hand 252-12
If the process advances to , paper is fed from the cassette, copying is performed according to the specified color and area, and the transfer i is ejected to the outside of the machine and the process ends.

Next, fill-in copy will be explained.

When filling in, by leaving the exposure lamp 24 off, a solid Ii! j
An electrostatic latent image of the image is formed. Therefore, as described above for area copying, by selectively lighting up one LED array 14 at the timing according to the designated area, it is possible to erase the unnecessary part It and output only the desired part as a solid image. . 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 repeated at 253-2 & -j,,
When it comes to the Wi timing for the late Ik engineer 1171, it is 25
In 3-3, LED7L-fl4 is selectively turned on according to the coordinates of the specified Y force direction of the machine 7.

;・Judge at 253-4 whether or not the timing number for completing the X-direction route in the area has been sung. When the first confirmation of the area in the X direction is reached, the LED array 14 is completely turned on at 253-5, and the image is erased 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. In this case, the operation is as follows. Input the two points on the diagonal line of the area of set tray 254-4 into the editor 250-1. Next, specify the fill mode of 250-4. 254 Press the two points on the diagonal line of the area -3, and then press the color designation area within the area 250-5.Press the two points on the diagonal line of the area 254-2.

Finally, press the area black and white designation section 250-7. Then, place the original on the document table and press the copy key. These input operations first copy the filled part of the area 254-4, first copy the part 254-2 on the same side in color, and finally copy the part 254-3 in black, and then automatically Copying ends. This can be done with very simple operations. In addition, since the filled-in copy is performed first, the original can be copied onto the hills of the filled-in area, and a good copy can be obtained, for example, when an attempt is made to make a title part stand out. In addition, you can input the color part, black part, and fill-in part at the same time, which makes the operation very easy and eliminates the need to set the document on the editor or document table many times. And it matches the thinking of a single person.

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

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

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

During copy operation 1 For example, two areas with color inside are registered, one of which is 100% (area 1)
If the other one is set to 64% (area 2), 252-6 or 25% in the flowchart shown in FIG.
The operation in step 2-11 may be performed as follows. 10
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. Further, it is possible to specify a position by calculating the difference between the value of one position specification and the position of the area, and shifting the transfer timing of the transfer paper by the difference (only in the X direction in this embodiment). Similarly, in the case where a position is specified, for example, if the amount of deviation in the feeding timing of the transfer paper due to the specified position in a certain area is different from the amount of deviation in 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 embodiments, the images of each designated area were multiple-copied onto the same transfer paper, but each area may be copied onto separate transfer paper, or such a method may be used. For mode.

It is also possible for the image in the designated area to appear on 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, press (3) on the numeric keypad 122,
By 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 timing of feeding the transfer paper is delayed by xo. If the mode set at the beginning is difficult, the first calculation is performed.

However, the intersection 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, copying is performed sequentially, and all areas registered in the area data area of FIG. 31 are copied, and the series of copying operations is completed.

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

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 center portion 35-15 of the transfer paper 35-14. Also, the center portion 3 of the transfer paper 35-16
The part 35-13 is copied to 5-17.

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

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

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

When a copy operation is started by a copy command.

First, in step 270-1, it is determined whether double-sided/multiple copying is to be performed on the same original, that is, without exchanging 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.
then set it to wIJ2 paper feed section paper feed upper 2 with 270-6.
3. Feed the paper, make a copy, and eject the transfer paper 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 the loop of 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, copying is performed using the intermediate tray 40. At 270-8, copies are made for the set number of sheets, and transfer paper is set on the intermediate tray 40. Next, at 270-9,
Paper is re-fed from the intermediate tray 40, copies are made for the set number of sheets, and the process is completed by ejecting the sheets to the outside of the machine.

If the determination at 270-1 is NO, the process advances to 270-10. 270-10 determines whether the original is a standard size, and
If o, the set number of copies is set to 1 in 270-17, and the process proceeds to 270-18. If YES, determine whether the set number of copies is 1 at 270-11; if YES, 27
The process advances to step 0-18 and the second paper feed section 23 is selected.

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

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

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

When paper is fed from a universal cassette or manual feed tray, or when copying a single sheet, one sheet 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, for non-standard multiple copies, it is possible to perform copying one sheet at a time using the second paper feed without using an intermediate tray. Furthermore, the inconvenience of transfer paper (
size is too small, etc.).

Unnecessary troubles can be avoided by ejecting the documents outside the machine without performing double-sided/multiple copy processing.

The copying machine of this embodiment has an own fJJW, a document feeder (hereinafter referred to as A),
It is also possible to install an ADF (referred to as an ADF) in FIG. 61. 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, 280-11 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 a dovetail 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 next original is set on the original platen 5 and the prescribed original exposure is completed,
At this time, the document sensor 260-10 does not detect the document, so no paper feeding operation is performed, and the document is discharged to the paper discharge tray 260-9, completing one series of copying.

FIG. 62 is a flowchart illustrating that copying operations differ depending on the number of ADF originals in single-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
0, it is determined whether there is one original or multiple originals (Step 7-2).

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

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

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

If Step 7-2 is Yes, it can be determined that there are a plurality of originals set. The copying operation for the first side is completed, and the transfer paper is conveyed to the second paper feeding section 23 (S
t e p7-3), eject the original, and then feed the original on the primary original tray 260-11 (S
Step 7-4) Copying the second side and ejecting the transfer paper to the outside of the machine (Step 7-5), and determining whether there is a wrong original in the original tray 260-11 (Step 7) -6) If there is no original, the original is ejected (step 7-14), and the series of copying operations is completed.

Further, if there is a document in the document tray 260-11, the document is ejected and the next document is fed (Step 7-7). Then, it is determined whether or not the next document is in the document tray 260-11 (step 7-8).

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), the original is ejected, the next 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, after the copying operation for the first side is completed, the transfer paper is ejected from the machine (step 7-12), and the original is ejected (step 7-14), completing a series of copying operations.

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

For example, when 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 and trimming copy modes together to obtain multiple or double-sided copies of two originals, it is not possible to specify the area for the two originals at the same time. However, for the same reason as mentioned above, there was a serious drawback in that the ADF could not be used to make the desired copy.

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

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

When the reset key 119 is pressed (Step 7-15)
, the transfer paper in the second paper feeding section 23 is conveyed through the second paper path and discharged outside Ja (Step 7-21).

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

5If there is no original in step 7-17, it is determined that the original has been manually set, the second side is copied, 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 solenoid 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. Also, when the motor starts rotating, the middle plate of the cassette in the paper feed section is lowered. If so, start raising the middle plates of both the upper and lower tiers. 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 of the rise of the middle board, 51: stage, 'F
Both stages are the same. When the middle plate rising clutch is turned on, the middle plate begins to rise. Eventually, the output of the middle plate detection sensor becomes 1, and after 0.1 seconds from this point, the middle plate lifting clutch is turned off. -The force paper detection sensor can detect the right side by raising the middle plate, as shown in Figure 1.
If there is paper, the positional relationship is such that the output of one paper detection sensor becomes 1 before the output of the middle plate detection sensor becomes 1. Further, when the output of the middle plate detection sensor becomes 1, it is determined whether the 1 paper detection sensor is present, and if the output 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 coffee key is pressed, the main motor, high voltage, and document illumination lamp are turned on. Also, the paper feeding operation described later.

The developer pressurizes. After one rotation of the drum, the optical system moves forward and turns on the registration roller tl after the image edge is detected. After that, it will turn off after a period of time depending on the paper size. After that, the optical system comes to the inverted position.

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

Next, the pressurizing operation of the developing device will be explained. FIG. 39 is a timing chart when color copying is started with the black developing device set. First, turn 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 complete, turn off the color pressure lens and release the color developer. Incidentally, at this point, the black developing device remains disabled. In order to smoothly replenish color toner, this is always canceled when color copying is completed (11).

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

Thereafter, as the copying operation progresses, the paper feed clutch is turned on again for a predetermined period of time when the registration rollers are turned on, thereby reducing the paper feeding load on the registration rollers. On the other hand, after that, the control of the middle plate is performed asynchronously with the copying operation, and when the output of the middle plate detection sensor becomes O, the middle plate raising clutch is turned ON.
Then, 0.1 seconds after the output of the middle plate detection sensor becomes 1, it is turned 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 feed tray lift clutch and start pushing up the single manual feed tray. As it rises, if transfer paper is set, the output of the paper detection sensor becomes 1. After a predetermined period of time, the paper feed clutch is turned on and the paper is fed into the machine. After the time tS until the transfer paper is gripped by the next roller, the first manual feed tray lifting clutch is turned off and the manual feed tray is lowered accordingly, so the output of the paper detection sensor becomes O. On the other hand, the transfer paper is sent to the pre-registration sensor 57 (7), and after a predetermined time after the output of the pre-registration sensor S7 becomes 1, the paper feed clutch is released, and the transfer paper hits the register roller and forms a loop. Stop.

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

Since the movements of the optical system, paper feeding operation, etc. are the same as described above, the movement of the transfer paper after the registration roller 12 is turned on will be explained. FIG. 41 is a timing chart in which the transfer paper is sent to the fixing device when the registration roller is turned on. After that, when the paper passes the paper discharge sensor, the output of the paper discharge sensor S4 changes from 0→l→0. At this time, the lateral registration means, which will be described later, is moved to the home position. After a predetermined period of time, when the transfer paper is gripped by the discharge roller 27 at a position approximately 10 mm from the trailing edge, the reverse solenoid is turned on to switch back the transfer paper. 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 approximately 15 mm, and then stops. At this time, the reverse solenoid is also turned off. Also, the second transport section 23 teeth.

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) when viewed 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 paper, a predetermined operation is performed because the size of the transfer paper is 180 mm or more.

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

The movement of the transfer paper after the registration roller is turned on will be explained. Fourth
Figure 2 is a timing chart showing this. At the same time as the registration rollers are turned on, the flapper remover 29 is turned on, and the lateral registration means (second registration roller 37, which will be described later) is turned on.
) to the home position. Transfer paper is distance, I
After moving by J2, in the case of manual copying, the pre-registration sensor is checked as in the case of double-sided copying described above.

If paper is not detected, flapper solenoid 29
Turn it off and eject it outside the machine. Transfer paper advances and paper ejection sensor S
When the output of 4 becomes 1, the second transport latch is turned on. After the transfer paper is transported to the second transport section 23 and the output of the second pre-registration sensor becomes 1, the second transport latch is turned off at a predetermined time t4@. The transfer paper forms a loop when it hits the second registration roller 37 and stops. Since the curl state and direction of the transfer paper are different from the case of double-sided copying described above, the 55c7) output of the second pre-registration sensor is 1.
The value of the time t4 from when it becomes to when it stops changes.

Next, the copying operation for both sides of a single copy and the second side of multiple copying will be explained based on FIG. 44. The transfer paper is already in the second conveyance section, hits the second registration roller 37, forms a loop, and stops. When copying starts, the second registration roller clutch and the duplex transfer clutch are turned on, and the transfer paper begins to move toward the second registration roller 12. After one second, the later-described lateral registration adjustment operation 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, the transfer paper is pulled by the register roller 12, and the second register roller 37 becomes a load.
The transfer paper continues to be conveyed in the loop lo. Thereafter, the transfer paper passes through a fixing roller and is ejected from the machine, completing the copying process. Further, the time 1b for determining the loop amount before registration is set differently from that in the case of paper feeding from a cassette because the transfer paper conditions are different.

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

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

S8 is a horizontal registration paper detection sensor, and SH is a transfer paper. When the second registration roller 37 is set to the home position, it stops at the center of its operating range, and by turning on the lateral registration solenoid, the arrow in Figure 1 →
It moves like ■→′■→■. 2nd L> When the transfer paper is inserted with the registration roller 37 stopped at the home position, depending on the position of the transfer paper, 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, when the output of the horizontal registration paper sensor becomes 1-0-1, the operation is stopped. Furthermore, if the transfer paper comes in extremely biased towards the lateral registration paper sensor, there is a possibility that the output of the lateral registration paper sensor will always be 1. Even in that case, the following steps are taken to ensure that the vehicle stops at an appropriate position. That is, as shown in Fig. 47, when the transfer paper moves in the directions of arrows ■ and arrows も, it is the time when the transfer paper is furthest away, and at this point the output of the horizontal registration paper sensor becomes 1.
If so, the output from the lateral registration paper sensor will never become O since it will move in the direction of the arrow (■) from there. 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 0, 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. Furthermore, if the transfer paper comes in at an extremely distance from the lateral registration paper sensor, the output of the lateral registration paper sensor will remain at 0. Even in that case, in order to stop at the appropriate position as much as possible,
If the output of the lateral registration paper sensor does not become 1 even after moving for the time 1/4T corresponding to ■ in FIG. 46, it will stop 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 as it is toward the intermediate tray. The intermediate tray entrance sensor can detect the number of transfer sheets stored in the intermediate tray, and after detecting the set number of sheets, the operation is stopped.

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

Next, the operation of the second side of 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. First, turn on the intermediate tray paper feed roller drive. 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 S21, the intermediate tray paper feed roller solenoid is turned off, and the paper feed roller 56 rises to be out of contact with the transfer paper. At this time, the second m-th feed latch is turned on, and the above-described operation is started to set the rtS2 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 single multiplexing and double-sided copying described above.

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

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

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

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

Despite having toner, W! Since the toner particles near the toner sensor S16 are removed by the stirring rod, 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 one second.

When the hopper motor 300 is driven and the toner presence signal continues for 2 seconds or more, it is determined that there is toner in the developing device, the hopper motor 300 is stopped, and a hopper no partner timer, which will be described later, is reset.

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

The time during which the hopper motor 300 is rotating is measured by a hopper partnerless timer, and when the total time reaches 18 seconds, it is determined that there is no toner in the hopper 300 and a display is performed. 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 parts of the tram 20, but also makes it possible to create a white part of about 2 mm at the leading edge of the transfer paper, and to whiten the inside or outside of the designated area in the area designation 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 door closing 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 door closing plate 24-a is 2, and as the optical system advances, a signal is output as shown in FIG. 56. Fifth
In Figure 6, the rise of the image tip sensor output is the pre-image tip signal,
The falling edge is used as the image tip signal. The leading edge of the document is exposed exactly when the image edge signal is applied. Time t8 is ts=12/vK, where vK is the speed of the optical system. On the other hand, as shown in FIG. 54, a blank LED 14 and an optical axis 30
Regarding 5, blank LED 14 is better! ;Only L1 is upstream. Therefore, the blanking control needs to be performed earlier by Jl 1 /V p corresponding to 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 is t9=J22+2/Vx
=ul/Vp-a/Vp. Here α is blank L
It is l/2 during irradiation of ED14. By doing this, an appropriate leading edge margin can be obtained depending on each magnification. Make sure that Ta does not become a negative value even during reduction copying when the speed vK of the optical system is high! L2 has been set.

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.
Later, by turning on the blank LED 14, the 58th
As shown in the figure, an image can be displayed only within the specified area 311.

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

On the other hand, in Fig. 58, the part that displays the image is reversed, 31
If the value is other than 1, turn off the blank LED l4 after the above-mentioned time t9 from the blurring image start signal as shown in FIG.
A leading edge margin is created and the blank is turned on at time t12 from the signal one stroke ahead, and then the blank is turned off at time t13. t12. t13 is as follows.

As described above, when a white image is output, α/V p is subtracted, and when one image is white, α/V p is added, thereby making it possible to accurately copy an area.

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

The value of 'tll is increased by 1 mm from the above value.

Next, when a color copy is to be made, the blank LED 14 is controlled as shown in FIG. 60, but t12 is made smaller by 1 mm than the above value, and tt3 is made larger by 1 mm 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).

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

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

When the power is turned on, the necessary contents of RAM must be retained and unnecessary contents must be cleared (Step
l-1-1). Then, the copy mode is set to standard mode (St'ep1-1-2). This standard mode is
This is the same setting as the standard mode obtained when the reset key 119 is pressed. For example, in this standard mode, the number of sheets is set to 1.
These include 1-size copy, black developer, and lower cassette selection.

Next, it is determined whether there is any key input from the operation unit 100 (
Step-2). Then, it is determined whether the input is related to area registration (Stapl-3), and if the input is related to area registration, the process of Step 5, which will be described later, is performed.
).

0 double-sided key 107 that performs the process of 5tapl-7, which will be described later.
．． Page continuous copying key 106. Multiple key 105, image conversion key 103. Binding margin frame erase key 108 If done manually, the process of 5tapl-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-7. The contents will be explained below. Set the contents of RAM to set the copy mode to standard mode (St
apl-7-1). Then, the copy mode is returned to the standard mode (Step 7-2).

When copy mode is set to standard mode, area registration 1,
2.3 is canceled, but the data in the RAM where the area was registered in 5tapl-6 is not cleared. This causes the inconvenience of having to perform area registration again when the reset key 119 is pressed due to a user's mistake. 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 5tepl-8. The contents will be explained below.

When using the binding margin and frame erase key manually (Ste pl-8
-1), if any of the above copy modes 8, 9°10.11 is selected (Stapl-8-17),
Cancel the copy mode (St apl-8-18
).

When using multiple keys manually (St apl-8-2).

If double-sided/page continuous shooting mode is selected (St
epl-8-15), the copy mode is canceled (Step-8-16) - when double-sided keys are manually operated (St
epl-8-3).

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

When the page snapshot key is manually operated (Stapl-8-4), if 1 duplex/multiple mode is selected (Ste
p 1-8-11), the copy mode is canceled (Step 8-12).

The image conversion key is input (Stapl-8-5),
When the aforementioned copy mode 6 or 7 is selected (S t
e p l-8-6), if multiplex or duplex or page snapshot is selected (stapl-8-9),
Canceling multiplex/duplex/page continuous shooting mode (Step
-8-10).

Also, the image conversion key is input (Step-8-5)
), when the above-mentioned copy mode 6 or 7 is not selected (that is, either copy mode 8.9 or 10.11 is selected (Step 1-8-6)
), if the binding margin or border erase mode has been selected (Step 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. ．． It is possible to combine either to or 11. 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, 4.03 is a three-digit segment display corresponding to the magnification display 154 shown in FIG.
As will be described later, the voltage value D of the developing bias is adjusted for density adjustment.
It is also possible to display -Bis. Further, 404 is a density display LED 162, 406 and 407 are copy density adjustment keys 114, and 405 and 408 are copy density correction keys 11.
5 respectively. 401 and 402 are data RA for each data stored in a data ROM 440, which will be described later.
A data transfer key 409 is used to store the data in M441, and a light-off key 409 is used to turn 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 the figure indicates each data value on the data RAM area backed up by a lithium battery, L-CNT is an exposure correction index, L-INT is a lamp control voltage value corresponding to the exposure correction index, L- DAC indicates an area for storing a scale-converted value for setting the L-INT value to an 8-bit D/A converter. Similarly D
-CNT is L-CNT.

D-Bis is a data table of developing biases corresponding to L-INT and D-DAC corresponding to L-DAC, respectively.

Further, FIG. 68 shows a data ROM 440 for storing standard data regarding exposure amount and developing bias value, and this data ROM 440 (7) -1-1)
7 L-CN T-D-DAC is data RAM
441 area L-CNT-D-DACs.

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, at the time of shipment of the copying machine. All standard data in data ROM 440 is copied to data RAM 441 by pressing data transfer key 402. Also, if you press the data transfer key 401.

Data ROM 440 c7) x l) 7 L -
Only the standard data stored in CNT and D-CNT is copied to the same area of data RAM 441.

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 development/heyas voltage values stored in each area I, -INT, and D-Bis of the data RAM 441 into 8-bit data at a predetermined timing. The data is scale-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 a DC signal by a filter 443, and is supplied to the light amount control circuit CVR and the high voltage generating bag aHVT via a buffer amplifier 444.

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

When the copy density adjustment key 406 or 407 is pressed, the value of the area L-CNT of the data RAM 441 is set to '-1' or '+ + 1 +-, and the segment corresponding to the value of the rear L-CNT) of One of the lights shifts. At the same time, area L of data RAM 441
- A predetermined value is subtracted from or added to INT. Furthermore, when the data transfer key 402 is pressed, all data in the data ROM 440 is transferred to the data RAM 441, and each area of the data RAM 441 is set to, for example, L-CNT=8, L-INT=75.
Each standard value is written, and on the segment 404, the part corresponding to the value of area D-CNT "8°" is displayed blinking.At the same time, on the segment display 403, the value of area D-Bis is displayed blinking. 180 ''' is displayed. Then, when the copy density correction key 405 or key 408 is pressed, area D- of the data RAM 441 is displayed.
The value of CNT is incremented by "'-1" or 4 "+1", and one of the segments (corresponding to the value of area D-CNT) 404 blinks and shifts, and at the same time, the data RAM 4
A predetermined value is subtracted from or added to area D-Bis 41. Incidentally, the segment) 404 performs a blinking operation when adjusting the developing bias value in order to distinguish it from the exposure amount adjustment. That is, the segment 404 performs a blinking operation when the copy density correction keys 405 and 408 are pressed, and performs a lighting operation when the copy density adjustment keys 406 and 407 are pressed. 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 will not be turned off.
Further, when the copy 1a degree correction key 405 or 408 is pressed, the value of the area D-Bis of the data RAM 441, that is, the voltage value of the developing bias is displayed on the magnification display 403.

Note that this display returns to the original magnification display of Tokiban 21 when the copy key is pressed. To specifically explain an example of the adjustment, first, by pressing the data transfer key 402, the data RAM is
441 is initialized, and the standard voltage value of the developing bias "'180°" is displayed on the segment display 403, and the indicator value "8°" is displayed on the segment 404.

The corresponding part will be displayed blinking. Next, copy density correction keys 405 and 408 are pressed so that the background wall original has an appropriate density.
You can operate as appropriate.

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

Explanation of 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 an appropriate paper cassette according to the set original size and the specified magnification ratio.
He is a beggar with S mode. Key 411 in the figure, LE
D412.

413.414,415,416. Each of the keys 417 has a key 124° LED 165,1 shown in FIG.
56, 157, 158, 159, corresponding to keys 113.

In FIG. 70, a key 411 is a key for selecting and canceling the APS mode, and an LED 412 indicates the selected state. The display section 414 is for displaying all cassette sizes currently loaded.

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. An LED 415 indicates which cassette loading port (including the manual feed port) is currently selected, and an LED 416 lights up when there is no paper in the selected cassette. 417 is a cassette selection key, and each time the key 417 is pressed, the LED 415 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 can deal with various inconveniences that may occur when selecting the APS mode, such as when there is no optimal paper cassette to be selected, or when the document size cannot be detected due to some circumstances. It is structured like this.

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

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

(2) M: If multiple single paper cassettes are not installed when power is turned on, auto clear is temporarily activated, or reset key 119 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 the APS key 411 is pressed while the only paper cassette is present and a cassette slot with no cassette is selected (no paper is displayed on the LED 416), the pressed APS, LED4 at the timing
12, then select the only existing cassette and turn off the paper out display, then turn on APSLE.
Turn off D412 to cancel LAPS mode.

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 each data read from the non-volatile data memory 421 as described above is correct or not, 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 static RAM (non-volatile data memory) with a standby function for storing various control constants, and 423 is a static RAM (non-volatile data memory) for storing various control constants, and 423 is a static RAM (non-volatile data memory) for storing various control constants. The CPU (in charge of the control unit 60 in FIG. 2) and 422 are lithium batteries, which are used as a backup power source for the RAM 421. Power supply 5v is RA
When given to M421, σ=0 and RA
M421 becomes accessible by the CPU 423, but when the 5V power is cut off by turning off the power switch, etc., σT becomes high level and the RAM 4
A holding current is supplied from a lithium battery 422 to VDD of 21. As a result, even if the current is interrupted, the RA
The data of M421 will be held by the lithium power supply 422.

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

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

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

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

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

First, in step 430-1 when the power is turned on, the CPU 42
Data retention power supply 4 connected to the A/D conversion input terminal of 3
The voltage of 22 is compared with a reference value (for example, 3.0 .mu.), 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 the data at a predetermined address in the RAM and the data at a predetermined address in the ROM are transferred. Compare it with the data, and if it matches, it is determined that the RAM 421 is normal [
Effects] As described above, according to the present invention, a desired image can be obtained without causing image loss even if a plurality of areas are specified.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view of a copying apparatus to which the present invention can be applied; FIG. 2 is a schematic block diagram showing the configuration of the apparatus shown in FIG. 1;
FIG. 3 is an external view showing the operation panel of the device shown in FIG. 1;
Figure 4-1 is a diagram showing an LED array and its driving circuit;
FIG. 4-2 is a diagram showing the irradiation of the LED onto the drum. FIG. 4-3 is a diagram showing the lighting timing of the LED. Figure 5-1 is a diagram showing the configuration of the editor, Figures 5-2 and 5-3 are equivalent circuit diagrams when specifying the X and Y directions of the editor, and Figure 6 (a) is from a single-sided original. Figure 6(b) is a diagram showing an output example of double-sided copying. Figure 6(c) is a diagram showing an output example of multiple copying. Figure 6(d) is a diagram showing an output example of double-sided copying. ) is a diagram showing an output example of page quick-shot multiple copying, FIG. 6(e) is a diagram showing an output example of page continuous-shooting color multiplex copying, and FIG. 7 is a diagram showing an output example of 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. 22 is a diagram showing the data storage RAM for controlling the LED array, FIGS. 23 and 24 are flow charts showing the control of the LED array, and FIGS. 25 and 26 are the strong lighting timing of the LED. Figure 27 shows LE
Figures 28 and 29 showing the erased state by lighting D.
FIG. 30 is a diagram showing an output example of specifying multiple areas, FIG. 30 is a diagram showing another embodiment of the editor, and FIG. 31 is a diagram showing a memory for storing area data. 32 and 33 are flowcharts showing the copy operation when specifying an area, FIGS. 34, 35, and 35-1 are diagrams showing examples of output for specifying an area, and FIGS. Figures 48 to 50. FIGS. 52, 53, 55 to 57. 59 and 60 are diagrams showing the operation timing of each part of the apparatus, FIG. 47 is a diagram showing an outline of the second paper feeding section, and FIG.
The figure shows the configuration of the developing unit, Figure 54 shows the LED array and exposure position, Figure 58 shows the blank exposure timing, and Figure 61 shows the configuration of the automatic document feeder. 62 and 62-1 are diagrams showing the copying operation when using the automatic document feeder, FIG. 63 is a flowchart showing the copying operation depending on the transfer paper size and the number of copies, and FIG. 64 is the FIG. 3 is a diagram for explaining area specification 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 441, 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
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Claims (2)

[Claims] (1) It is characterized by having means for registering data specifying an original area or playback position, and specifying a composite area or a new area by calculating the logical sum of the newly registered data and the registered data. Image processing device. (2) An image processing apparatus according to claim 1, characterized in that, regarding overlapping areas, priority is given to an area designated later.