JPH0616199B2 - Copier - Google Patents

Description

TECHNICAL FIELD The present invention includes a preheating mode and a standby mode, and
The present invention relates to a copying machine provided with a paper collating device for collating a copy discharged from a main body device.

[Prior Art] In recent years, in order to reduce power consumption during non-copying operation, a copying machine having a preheating mode in addition to a standby mode has been put into practical use. In this preheat mode, the temperature of the fixing roller of the fixing unit is lowered, and the indicator of the operation display unit that forms the man-machine interface (user interface) between the operator and the copying machine is turned off to reduce the power consumption. There is.

However, in such a copying machine, even if some abnormality occurs in the main body of the apparatus in the preheat mode selected state, such an abnormality is not displayed, and therefore the operator can know the abnormality until the preheat mode is released. Therefore, there is an inconvenience that the treatment for the abnormality is delayed. Further, when a peripheral device such as a sorter is connected to the main body of the device, the same inconvenience as described above occurs even when an abnormality occurs in the peripheral device. In particular, when an abnormality that requires repair by a service person occurs, there is a problem that the copying machine cannot be used immediately and the abnormal state becomes serious.

[Object] The present invention has been made in order to solve the above-mentioned drawbacks of the prior art, and provides a copying machine capable of displaying an abnormality occurring in the copying apparatus main body or a peripheral device connected to the apparatus main body during the preheating mode. The purpose is to provide.

[Structure] In order to achieve this object, the present invention releases the preheating mode and shifts to the standby mode when an abnormality occurs in the preheating mode, and displays the abnormality.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a copying machine according to an embodiment of the present invention. In this embodiment, the copying machine 100 has an automatic document feeder 200.
And a paper collating device (hereinafter referred to as a sorter) 300 is attached.

In the copying machine 100, 101 is a contact glass on which a copy original is placed, 102 is an optical system for scanning the copy original on the contact glass 101, and this optical system 102 covers an image of the copy original within a range of 50 to 141%. It has a function to change the magnification to any magnification.

103 is a drum-shaped photoconductor, 104 is a charging charger that uniformly charges the surface of the photoconductor 103, and 105 is an eraser for removing the surface charge of the photoconductor 103 that does not correspond to the original image. The surface of 103 is exposed by the original light guided by the optical system 102, and an electrostatic latent image corresponding to the original image is formed. This electrostatic latent image is developed with toner by the developing device 106.

107 and 108 are paper feed cassettes that store different copy papers, 109 and 110 are paper feed rollers that send copy papers from the paper feed cassettes 107 and 108, 111 is a registration roller that sends copy papers to the photoconductor 103 at a predetermined timing, and 112 is a photoconductor. A transfer charger for transferring the toner image on the copy sheet to the copy sheet, 113 and 114 are separation chargers and claws for separating the copy sheet from the photoconductor 103, and 115 is a conveyor belt for conveying the separated copy sheet, Reference numeral 116 is a fixing device for fixing the toner image by heat-pressing the copy sheet, 117 is a conveying roller for sending the fixed copy sheet to the sorter 300, 118
Is a discharge sensor for detecting the discharge of copy paper, 11
Reference numeral 9 is a guide plate for guiding the copy sheet to the sorter 300.

Further, 120 is a cleaner for removing the residual toner on the surface of the photoconductor 103, 121 is a discharge lamp for removing the residual charge on the surface of the photoconductor 103, and 122, 123, 124, 125, 126 and 127 respectively guide the copy paper along the transport path. It is a guide board.

Since the automatic document feeder 200 and the sorter 300 are not directly related to the present invention, detailed description thereof will be omitted.

FIG. 2 shows a detailed structure of the cleaner 120.

In the figure, 120a is a pre-cleaning charger that removes residual toner, 120b is a fur brush that rotates in the same direction as the photoconductor 103 to remove foreign substances such as paper dust, and 120c removes residual toner from the surface of the photoconductor 103. A cleaning blade to be scraped off, 120d is a blade cleaner for removing dirt such as paper dust attached to the cleaning blade 120a.

The cleaning blade 120c is pressed against the photoconductor 103 by a solenoid and a link mechanism (not shown) when the power of the copying machine 100 is turned on. Are evacuated to. Furthermore, at the time of this retreat, the tip of the cleaning blade 120c is rubbed by the blade cleaning 120d, and the dirt is removed from the cleaning blade 120c.

FIG. 3 illustrates the control system of this embodiment.

In the figure, the main body control unit 100a of the copying machine 100, the control unit 200a of the automatic document feeder 200, and the control unit 300a of the sorter 300.
Is a microprocessor, a ROM (Read Only Memory) that stores the control program for each device, a RAM (Random Access Memory) that forms a work area, and an input device that supports each device. It is composed of an output circuit and the like.

The main body control unit 100a, the control unit 200a, and the control unit 300a exchange status information and control information with each other.
As a result, the main body control unit 100a causes the automatic document feeder 200 to
Also, the abnormality that occurred in the sorter 300 can be known.
Further, the automatic document feeder 200 and the sorter 300 are set to the operation mode designated by the main body control unit 100a and operate in synchronization with the timing signal from the main body control unit 100a.

Further, the operation display unit 100b has various input keys for inputting an operation mode of the copying machine 100, a scaling factor, selection of a paper feed cassette, designation of the number of copies, printing start, and the like, and various displays for displaying the selection / setting state thereof. The copy machine 100 is equipped with a container and attached to an appropriate place on the upper surface of the casing of the copying machine 100.

FIG. 4 shows an example of the operation display unit 100b.

In the figure, 130 is a preheat mode key for selecting a preheat mode for lowering the temperature of the fixing device 116 and turning off the display of the operation display unit 100b to reduce the power consumption during standby, and 131 is a blue color of the copy document. It is a blue erase key for removing ruled lines, and when this blue erase key 131 is turned on and the blue erase mode is selected, the optical system 102
The power supply voltage of the light source lamp at is slightly increased and the amount of light emission is increased, whereby the blue ruled line disappears from the copied image.

132 is a print key for inputting a copy start instruction to the main body control unit 100a, 133 is a ten key for inputting the number of copies, 133a is a clear / stop key for canceling the input of the ten key 133, and 134 is an interrupt An interrupt key for selecting a mode, 135 is a density decrease key for decreasing the copy density, and 136 is a density increase key for increasing the copy density. When the density decrease key 135 and the density increase key 136 are turned on once, the copy density is changed by one step, and when the ON state is connected, the density is changed by one step per unit time.

A paper feed selection key 137 switches the selection state of the paper feed cassettes 107 and 108, and the selection state of the paper feed cassettes 107 and 108 is switched every time the paper feed selection key 137 is turned on.

Reference numeral 138 denotes an original selection key for setting a copy original size. Every time the original selection key 138 is turned on, the original size to be set is A3 → B4 → A4 → B5 → A5 → B6 → A3 → ... It changes cyclically.

139 is an equal magnification key for setting the copy magnification to the same magnification, 140 is a reduction key for setting the reduction copy mode and its magnification, and 141 is an enlargement key for setting the enlargement copy mode and its magnification. is there. Each time the reduction key 140 is turned on, the reduction ratio is 93% → 87% → 82% → 71% → 61% → 50% →
93% → It changes cyclically like. Also,
Each time the enlargement key 141 is turned on, the enlargement ratio is 115% → 122%
→ 141% → 115% → It changes cyclically like.

142 is a page continuous shooting key for selecting the page continuous shooting mode. This page continuous shooting mode, contact glass
This is a mode in which an image of a copy original vertically placed on 101 is divided into two in the vertical direction and each image is copied onto a copy sheet of a size smaller than the original size. Therefore, 1
Two copies of different images (2
A set of copy sheets can be obtained.

143 is a stack key for selecting the stack mode of the sorter 300, 144 is a sort key for selecting the sort mode of the sorter 300, and operation signals of these stack key 143 and sort key 144 are sent from the main controller 100a to the sorter. The operation mode of the sorter 300 is selected by being transmitted to the control unit 300a of 300.

145 is a binding margin right selection key for setting the binding margin to the right, 1
Reference numeral 46 denotes a binding margin left selection key for setting the binding margin to the left. This binding margin is provided by shifting the paper feed timing of the registration roller 111 from a predetermined state to the front and back to shift the image. In addition, when a normal binding margin is provided, a reduction ratio of 93% is often set so that an image is not missing. Further, the binding margin amount is set by the ten-key pad 133.

147 is a zoom down key for reducing the scaling factor by 1%, 148
Is a zoom-up key that increases the magnification by 1%,
The zoom-down key 147 and the zoom-up key 148 change the magnification ratio by 1% per unit time when the ON state is held.
It has a function to change each.

Also, a preheat mode key 130, a breath erase key 131, a page continuous shooting key 142, a stack key 143, a sort key 144,
The binding margin right selection key 145 and the binding margin left selection key 146 are in the on-states of the light emitting diodes 150, 151, 152, 152, 154, 155.
And 156 respectively. The print key 132 has green and red light-emitting diodes built in the key top, and lights in green when printing is possible and lights up red when printing is not possible.

By the way, the copying machine 100 does not have a double-sided copying function, but since the operation display unit 100b is used in common with a copying machine (not shown) also having a double-sided copying function, three kinds of double-sided modes are set. A double-sided 1 key 161, a double-sided 2 key 162, and a double-sided 3 key 163 can also be provided.

When the double-sided 1 key 161 is turned on, the light-emitting diode 164 is turned on, and the images of two originals (generally the same size) with images formed on only one side are copied on the front and back sides of one copy sheet. Duplex 1 mode is selected. When the double-sided 2 key 162 is turned on, the light emitting diode 165 is turned on, and the image of the original with the images formed on both sides is displayed.
The 2-sided 2 mode for copying on both sides of one copy sheet is selected. Double-sided 3 When the key 163 is turned on, the light emitting diode 1
When 66 is lit, the image of a vertically placed document or an opened book is divided into two, and each image is copied to the front and back sides of one copy sheet.

In this example, these unused duplex mode keys
The parts corresponding to 161-163 and the light-emitting diodes 164-166 are treated such as fitting a blind plate.

An example of the display 170 is shown in FIG.

In the figure, 171a is a set number display for displaying the number of copy sets set by the ten keys 133, and 171b is a copy number display for displaying the number of copies. When the ten-key 133 is operated with the binding margin right selection key 145 and the binding margin left selection key 146 turned on, the binding margin adjustment amount is displayed on the set number display 171a.

Reference numeral 172 is a serviceman call indicator, which is determined to be abnormal by self-diagnosis, such as when the thermal fuse or thermistor of the fixing device 116 is disconnected, or the drum stock is not output due to the rotation of the photoconductor 103. Light.

Reference numeral 173 is an interrupt mode indicator that indicates that the interrupt mode is selected, and 174 is a max indicator that is turned on when the amount set by the numeric keypad 133 exceeds the maximum value specific to the device.

175 is a message display indicating that it is ready to copy, 176 is warming up the device or the optical system 102.
This is a message display that indicates that the variable magnification setting operation is being performed and copying is not possible.

177 is a running indicator that lights up sequentially at a fixed timing while the optical system 102 is operating, and turns off when the optical system 102 returns to the home position. 178 is a concentration indicator that displays the concentration in 7 steps. The display on the display 178 corresponds to the density level set by the density decrease key 135 and the density increase key 136.

179a is an oil end indicator, 179b is a toner end indicator, 179c is a jam on the main body or the sorter or the main body and soda, and the main body or the sorter door is in an open state (unsealed state). It is a jam door open indicator that displays the combination of the presence and the presence.

180a is an upper cassette remaining amount indicator that displays the remaining amount of paper in the upper sheet feeding cassette 107, 180b is a lower cassette remaining amount indicator that displays the remaining amount of paper in the lower sheet feeding cassette 108, and 180c is a paper feed selection key It is a paper end indicator that indicates that the remaining amount of paper in the paper feed cassette selected in 137 is “0”.

181a is an upper cassette display that displays the paper size of the paper feed cassette 107, and 181b is a lower cassette display that displays the paper size of the paper feed cassette 108. It is made by the display of each display. The display "R" indicates that the image is fed vertically.

When the size uniform mode, automatic paper feed selection mode, and original selection mode are set, the 182 blinks the message "Paper Check" when the selected paper feed cassette is not a standard cassette, which is a so-called universal type. A message indicator for flashing a message "Paper size direction confirmation" when the selected paper cassette is not proper.

The 183 displays "Enlarge" when the scaling ratio is set to 101 to 141%, "Same size" when it is set to 100% (1: 1), and is set to 50 to 99%. It is a variable magnification mode display that displays "reduction" when

Reference numeral 184a is an automatic paper feed selection mode indicator that indicates that the automatic paper feed selection mode has been set in the automatic document feeder 200, and 184b is a size unification mode indicator that displays that the size unification mode has been set. .

185 is an original-paper combination that displays a standard combination of the original size and the paper size corresponding to the scaling factor when the scaling key other than the same size is set by operating the reduction key 140 or the enlargement key 141. It is an indicator.

Further, when the manuscript is placed directly on the contact glass 101 and the manuscript selection case 138 is turned on without using the automatic manuscript feeding device 200, the selected manuscript size is displayed in the portion surrounded by the frame 185a. The display of other parts of the original-paper combination display 185 is turned off.

186a is a variable magnification display for displaying the set variable magnification, 18
Reference numeral 6b is a zoom mode display that displays that a scaling ratio other than the standard scaling ratio has been set.

Each display of such a display 170 is composed of, for example, a fluorescent display tube or the like.

FIG. 6 shows a group of jam / door open indicators 179c. In the figure, when a jam occurs in the copying machine 100, the segment SG1 and the segment SG2 are turned on and the jamming is performed by the copying machine 100 and the sorter 300. Segments SG1, SG2 and SG3 are lit when a jam occurs, and segments SG2 and SG3 are lit when a jam occurs in the sorter 300,
When paper is left in the 300 bin, only segment SG3 lights up.

Further, when the door of the copying machine 100 is open or when the transport unit release lever double-sided transport release knob is not set to a predetermined position, the segment SG4 is lit, and when the sorter 300 door is open, the segment SG4 is lit. SG3 and SG4 light up.

Further, FIG. 7 shows that when a jam occurs in the copying machine 100,
The jam position monitor 195 for displaying the occurrence position is shown. The jam position monitor 195 is arranged at a position which is immediately visible when the door of the copying machine 100 is opened.

In the figure, light emitting elements (for example, light emitting diodes) A, B, C,
D and E respectively indicate predetermined positions of the paper transport path inside the copying machine 100, and indicate positions where jams have occurred. Also, the solid line portion and the broken line portion in the figure represent the jam of the jam position monitor 195 and the paper transport path.

With such a configuration, the main body control unit 100a executes the routine shown in FIG. 8 in the standby state to set / cancel the preheating mode. This routine is a part of the copying machine control main routine executed by the main body control unit 100a, and the main body control unit 100a cyclically executes the main routine while the power is on. It is repeatedly executed for a predetermined time (millisecond order).

First, when the preheat mode key 130 is not turned on (judgment 11 is NO), the main body control unit 100a resets the preheat mode key set plug FKPH for determining the on timing of the preheat mode key 130. (Processing 12), the process immediately returns to the original routine.

When the preheat mode key 130 is turned on (the result of judgment 11 is YE
S), determine whether the preheat mode key set flag FKPH is set (decision 13), and if not set (result of decision 13 is NO), set the preheat mode key set flag FKPH (process 14), determine the state of the preheat flag FPH indicating that the preheat mode is in progress (decision 1
Five).

If the result of determination 15 is NO, that is, immediately after the preheating mode key 130 is turned on during the normal standby mode, the preheating flag FPH is set and the light emitting diode 150 is turned on to indicate that the preheating mode is set. (Processing 16), fixing device
Lower the temperature of 116 by a specified value, and clean the blade 1
20c is retracted from the photoconductor 103, and a preheat mode process 17 for turning off the display of the operation display unit 100b other than the preheat display is executed.

When the result of determination 15 is YES, that is, when the preheat key 130 is turned on again when the preheat mode is set, the preheat flag FPH is reset and the light emitting diode 150 is turned off to cancel the preheat mode display. (Process 1
8) The temperature of the fixing device 116 is returned to the fixing temperature, the cleaning blade 120c is pressed against the photoconductor 103, and preheat mode release processing 19 for returning the display of the operation display unit 100b other than the preheat display is executed.

Note that while the preheat mode key 130 is on, the judgment 1
Since the result of 3 is YES, processing 14 and subsequent steps are not executed and the processing immediately returns.

Further, the main body control unit 100a executes the routine shown in FIG. 9, and if any abnormality occurs in the preheating mode, the preheating mode is canceled and the abnormality is displayed on the display unit 17
0 and the jam position monitor 195 display.

That is, the main body control unit 100a determines from the output of the door sensor (not shown) whether or not the door is in the open state (decision 20), and when the result of this determination 20 is YES, sets the door open flag FDDO (process). 21) If a jam has occurred (the result of judgment 22 is YES), the jam display flag FDJ
When M is set, the data of the light-emitting element that lights up in the jam position monitor 195 is set (process 23), and in the case of the serviceman call state (the result of judgment 24 is YES), the serviceman call display flag FDSM is set and displayed. Set status data (process 25).

Then, it is determined whether or not the preheat flag FPH is set (decision 26), and when the result of this decision 26 is YES, the preheat flag FPH is reset and the light emitting diode 150 is turned off to cancel the preheat mode display. (Process 2
7) The temperature of the fixing device 116 is set to the fixing temperature, the cleaning blade 120c is pressed against the photoconductor 103, and preheat mode release processing 28 for returning the display of the operation display unit 100b other than the preheat display is executed.

The flags FDDO, FDJM, and FDSM described above light up the display 170 of the main routine. It is passed to the control routine and the corresponding indicator is illuminated. Similarly, the jam position monitor 195 and a serviceman call status display section (described later) are passed to a control routine for lighting control, and the corresponding light emitting element and status are displayed.

The serviceman call status is a two-digit number (for example, hexadecimal number) representing the event that caused the serviceman call.
When 172 lights up, it is displayed on the set number display 171a.

An example thereof is shown in Table 1 below.

In this way, when any abnormality occurs in the copying machine 100, the automatic document feeder 200 and the sorter 300 in the preheat mode, the preheat mode is automatically released and the abnormality is displayed on the display 170. Therefore, the operator can immediately know the abnormality that has occurred in the device.

Note that, in the above, the description of the copy control processing and the like executed by the main body control unit 100a is omitted for simplicity.

[Effect] As described above, according to the present invention, when an abnormality occurs in the preheating mode, the preheating mode is released, the standby mode is entered, and the abnormality is displayed. The generated abnormality is immediately displayed, and the advantage is that the operator can detect such abnormality early.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a copying machine according to an embodiment of the present invention, FIG. 2 is a sectional view showing details of a cleaner, FIG. 3 is a block diagram showing an example of a control system, and FIG. Is a front view exemplifying the operation display unit, FIG. 5 is a front view showing details of the display device, FIG. 6 is a schematic view showing a specific example of the jam / door open display device, and FIG. 7 is a jam position monitor. FIG. 8 is a flowchart showing a control processing routine executed by the main body control section, and FIG. 9 is a flowchart showing another control processing routine executed by the main body control section. 100 ... Copier, 100a ... Main unit control section, 100b ... Operation display section 170 ... Display, 179c ... Jam / door open display, 195 ... Jam position monitor.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-59-157664 (JP, A) JP-A-60-130758 (JP, A) JP-A-59-201079 (JP, A) JP-A-59- 159149 (JP, A) JP 59-159150 (JP, A) JP 59-159153 (JP, A) JP 59-159178 (JP, A) JP 59-159179 (JP, A) Japanese Unexamined Patent Publication No. 59-159180 (JP, A) Actual development No. 60-80455 (JP, U)

Claims (1)

[Claims] Claim: What is claimed is: 1. In a copier equipped with a preheating mode and a standby mode, and further provided with a paper collating device for collating the copy discharged from the main body device, the operation of the paper collating device is controlled and the inside thereof is controlled. Controls the operation of the copying machine body and the paper collation control unit that determines the state, determines the internal state, and exchanges various information such as the internal state information with the paper collation control unit. The main body control means for controlling the operation of the sheet collating device and the display means for displaying the operating state of the main body device and the sheet collating device are provided in the preheating mode in the preheating mode. While displaying and outputting the status display, while turning off the other display contents, during the preheating mode, the paper collating control means is notified of the occurrence of an abnormality in the paper collating device, or When the abnormality of the main body device is detected, the preheating mode is released, the standby mode is entered, the preheating mode status display displayed on the display means is terminated, and the main body device and the sheet collating device are operated at that time. A copying machine, characterized in that the status is displayed and output to the display means.