JPS62153871A - Image forming device - Google Patents

Abstract

PURPOSE:To obtain an image forming device with an easy-to-see liquid display panel by setting a display part at the required angle by a motor. CONSTITUTION:A containing part 71 whose section is semi-circular is installed in a part corresponding to the display part 302 of a console panel 30. On the back of the display part 302 its section is semi-circular, like the containing part 171, and can be contained in the containing part 171. The shaft 173 of the display part 302 is turnably held in the containing part 171. Thus if the angle setting key of the console panel 30 is operated, and the display part 302 is turned by a pulse motor 175, the display of the liquid display panel 303 can be set at an easy-to-see position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an image forming apparatus applied to, for example, electronic copying.

(Technical deficiencies of inventions and their problems) Recently, many functions have been added to electronic copying machines, such as enlargement and reduction functions, exposure adjustment, and partial erasure. Along with this, more and more information is being provided to the operator, such as explaining the operating procedures for copying, the operating status of the copying machine, and the state of paper jams. For this reason, liquid crystal display panels that can display a large amount of information are being adopted.

However, in general, liquid crystals display the required information by reflecting external light, and depending on the position of the operator's eyes,
Depending on the position of the light sources installed on the ceiling, etc., insufficient light may not be supplied to the LCD display panel, resulting in a dark display.
In some cases, the light from the light source was directly reflected by the surface of the liquid crystal display panel, making the display difficult to see.

[Purpose of the invention]

This invention was developed based on the above-mentioned circumstances, and its purpose is to provide an image forming Wffl having a relatively simple configuration and an easy-to-read liquid crystal display panel.

(IIS of the Invention) This invention provides a display 8 provided with, for example, a liquid crystal display panel.
5 is rotatable relative to the operation panel, and the display section can be set to a desired angle by morphing.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIGS. 2 and 3 schematically show an image forming apparatus of the present invention, such as a copying machine. A manuscript table (transparent glass) 2 for supporting a manuscript is fixed to the upper surface of the copying body 1. The document table 2 is provided with a fixed scale 21 that serves as a reference for setting the document, and furthermore, a document cover 11 and a work table 12, which can be opened and closed, are provided near the document table 2.

Therefore, the original placed on the original fo table 2 has an optical system consisting of an exposure lamp 4 and a mirror 5, 6, 7 moved back and forth in the direction of arrow a along the lower surface of the document table 2. Exposure scanning is performed using the following steps.

In this case, mirror 6.7 is moved at half the speed of mirror 5 so as to maintain the optical path length. The counter light from the document caused by the scanning of the above-mentioned optical system, that is, the illumination of the exposure lamp 4 (
After the reflected light from the original is reflected by the mirror 5.6.7, it passes through the variable magnification lens block 8.
Further, it is reflected by mirror 9 and guided to photoreceptor drum 10, so that an image of the document is formed on the surface of photoreceptor drum 10.

The photosensitive drum 10 is rotated in the direction of arrow C in the figure, and first, the surface thereof is charged by the charging device 11. Thereafter, the image is subjected to slit exposure in the exposure section, thereby forming an electrostatic latent image on the surface. This electrostatic latent image is made visible by applying toner by the developing device 12.

On the other hand, the paper (transfer material) P is taken out one by one from the selected upper paper feed cassette 13 or lower paper feed cassette 14 by the delivery roller 15 or 16, and the taken out paper is taken out from the paper guide path 17 or 18 and is guided to a pair of registration rollers 19, and guided to a transfer section by this pair of registration rollers 19. Here, the paper feed cassettes 13 and 14 are removably provided at the lower right end of the main body 1, and one of them can be selected from an operation panel to be described later.

The cassette size of each of the paper feed cassettes 13 and 14 is detected by a cassette size detection switch 601 and 602, respectively. The cassette size detection switches 601 and 602 are composed of a plurality of mark cross switches that are turned on and off in accordance with the insertion of cassettes of different sizes.

The paper P sent to the transfer section is brought into close contact with the surface of the photoconductor tram 10 at the transfer charger 2o.
The toner image on the photoreceptor drum 10 is transferred by the action of 0. The transferred paper P (Y) is electrostatically peeled off from the photoreceptor drum 10 by the action of the peeling charger 21, and is sent to the fixing roller 23 as a fixing device provided at the end portion of the paper by the conveyor belt 22. Then, the transferred image is fixed by passing through this, and the paper P with a constant Wffl becomes
The paper is discharged onto a tray 25 outside the main body 1 by a pair of paper discharge rollers 24 . After the photosensitive drum 10 has been transferred, the charge is removed by the charger 26, residual toner on the surface is removed by the cleaner 27, and afterimages are roughly erased by the charge removal lamp 28, so that the photoreceptor drum 10 returns to its initial state. He is set to return. Incidentally, reference numeral 29 is a cooling ffl fan for preventing a rise in temperature within the main body 1. Further, an erasing array 150 in which a plurality of light emitting elements are arranged in the longitudinal direction of the photosensitive drum 10 is provided between the charging device 11 and the exposure section of the photosensitive drum 10 . This erase array 1
50 removes the charge on the photoreceptor drum 10 by lighting up a light emitting element at a position corresponding to a required portion of the document image designated by a spot light source to be described later;
This is to erase the specified image.

FIG. 4 shows the operation panel 30 installed on the main body 1. This operation panel 30 includes a copy key 301 for commanding the start of copying, and a copy key 301 that is rotatable with respect to the operation panel 30.
display section 302, liquid crystal display panel 303, selection key 3
04, Quick Disc H! 30s, an eject key 307 for opening the cover 306 of the quick disc device 30s and taking out the stored quick disc, and an angle setting key 30g for setting the rotation angle of the display section 302;
09. Operation keys 30a to 30d are provided to move a spot light source 131, which will be described later, to a desired position. In the liquid crystal display panel 303, each part of the copying machine 1lJ11:
Displays the status, paper jam, etc., selects the upper and lower paper feed cassettes 13 and 14, displays enlargement and reduction ratios for copies, displays copy density, and displays mode specifications such as erasing range settings, etc. It has become. Further, the plurality of selection keys 304 are used to select information displayed on the liquid crystal display panel 303. Furthermore, the quick disc device 30
A quick disk in which display information and the like to be displayed on the liquid crystal display panel 303 are stored is attached to the s.

FIG. 5 shows an example of the construction of the drive JWA of each drive section of the copying machine constructed as described above, and is constructed with the following motors. [flI] Reference numeral 31 is a lens motor, which is a motor for moving the position of the lens block 8 for zooming. 32 is a mirror motor, which is a motor for changing the distance (optical path length) between the mirror 5 and the mirror 6.7 for changing the magnification.

33 is a scanning motor, and the exposure lamp 4. i3, mirror 5, and a motor for moving the mirrors 6 and 7 for document scanning. A shutter motor 34 is a motor for moving a shutter (not shown) for adjusting the charging width of the photosensitive drum 10 by the charger 11 during zooming. Reference numeral 35 denotes a developing motor, which is a motor for driving the developing roller of the developer 12 and the like. 36 is a drum motor, which is a motor for driving the photosensitive drum 10. Reference numeral 37 denotes a fixing motor, which is a motor for driving the paper conveyance path 22, the pair of fixing rollers 23, and the pair of paper discharge rollers 24. 38 is a paper feed motor, and the feed roller 1
This is a motor for driving 5.16. 3 is a paper feed motor, which is a motor for driving the lens/roller pair 19; 40 is a fan motor;
This is a motor for driving the cold W fan 29.

FIG. 6 shows the overall control circuit.

The main processor group 71 includes a high-voltage transformer 76 that detects input from the operation panel 30 and various switches and sensors, such as the input charger 75 such as the cassette size detection switches 60+ and 602, and drives the various chargers.
The defrosting lamp 28, the platen renoid 27a of the cleaner 27, and the heater 23a of the fixing port 23
S: 1 lamp 4, and each of the motors 31 to 4
0 etc., in addition to performing the above-mentioned copying operation, displaying the display information supplied from the quick disk device 30s on the liquid crystal display panel 303, and specifying by the spot light source 131 moved by the pulse motor 135, The erase range stored in the memory 140 is
It controls an array drive unit 160 consisting of a switch circuit, etc. provided corresponding to each light emitting element of the erasing array 150, controls lighting of the erasing array 150, and performs operations such as erasing unnecessary portions of a document. be.

Among the above motors 31 to 40, motor 35°37.40
and a toner motor 7 that supplies toner to the developing device 12.
7 is controlled by a main processor group 71 via a motor driver 78, motors 31 to 34 and 135 are controlled by a first sub-processor 72 via a pulse motor driver 79, and motors 36, 39, 38, and 175 are controlled by a first sub-processor 72 via a pulse motor driver 79. ,
It is controlled to zero by the second sub-processor group 73 via the pulse motor driver 80. Further, the exposure lamp 4 is connected to the main processor group 71 via the lamp regulator 81.
The heater 23a is controlled by the main processor group 71 via the P91160 unit 82. Then, the main processor group 71 sends commands to drive and stop each motor to the first and second sub-processor groups 72 and 73.
1st. A status signal indicating the drive or stop state of each motor is sent from the second sub-processor group 72, 73 to the main processor af 71. Further, the ¥11 sub-processor group 72 receives position information from a position sensor 83 that detects the initial position of each of the motors 31 to 34.135.

The first and second sub-processor groups 72 and 73 are a.

Each microcomputer consists of a microcomputer and a programmable interval timer, and these microcomputers are connected to the main processor IJ71.

Further, the programmable interval timer controls the phase switching interval time of the pulse motor, and when a setting value is set from the microcomputer, counting of reference clock pulses is started based on the setting value,
I'm counting out. This termination pulse is supplied to the microcomputer.

Next, the spot light source 131 will be explained. 7th
8, the first carriage 41+ has a guide shaft 13 along the lamp 4 in the part where the light of the lamp 4 is blocked.
0 is installed, and this guide shaft 130 has a spot light 3!1 3 as a means for indicating the erasing range of the original.
1 is movably provided. This spot light source 1
As shown in FIG. 8, the reference numeral 31 includes a light emitting element 132, such as a light emitting diode or a lamp, and a lens 133, which are provided opposite to the document table 2. The light generated by the light emitting element 132 is transmitted through the lens 133 to The table 2 is irradiated with a spot light having a diameter d. This spot light has a brightness that allows it to pass through the document G set on the document table 2, which is, for example, as thick as a postcard. In addition, the spot light [1131 is a timing belt (toothed belt) 134 disposed along the guide shaft 130.
MN is connected. This timing belt 134 is passed between a pulley 136 provided on the rotating shaft of a pulse motor 135 and a driven pulley 137.

Therefore, by rotating the pulse motor 135, the spot light source 131 is moved in a direction perpendicular to the scanning direction of the first carriage 411.

In addition, the pulse motor 135flII of the guide shaft 130
A position sensor 13 consisting of a microswitch for detecting the initial position of the spot light source 131 is provided in the first carriage 411 located at the end.

For example, when the spot light source 131 is moved,
First, the spot light source 131 comes into contact with the position sensor 138 to detect the initial position.

When specifying the erasure range of the prefectural border, for example, a predetermined selection key 304 on the operation panel 30 is operated to enter the erasure range specification mode. In this state, the operation panel 30
When the operation keys 308 to 30d are operated, the light emitting element 132
The spot light source 131 is moved with the light on.

Then, this spot light is used to spot the desired part of the document.
By specifying a rectangle made up of points, the erasing range is specified.

Next, the gist of this defense will be explained. In this invention, the display section 302 of the operation panel 30 is rotatable in accordance with the operation of the angle setting keys 30g and 309 of the operation panel 30.

That is, as shown in FIG. 1(a), a housing portion 171 having a semicircular cross section is provided in a portion of the operation panel 30 corresponding to the display portion 302.
is provided. Furthermore, the back surface of the display section 302 also has a semicircular cross section, similar to the housing section 171.
It is adapted to be accommodated in the accommodating portion 171. As shown in FIG. 4, at both ends of the display section 302 in the longitudinal direction,
Shafts 172, 173 are provided, these shafts 172,
173 is rotatably held at both longitudinal ends of the accommodating portion 171. Further, as shown in FIG. 1B, a gear 174 is provided on the shaft 173, and a gear 176 provided on the rotating shaft of a pulse motor 175 meshes with this gear 174. Note that the connection between the liquid crystal display panel 3o3 and the selection key 304 and other circuits can be made, for example, through the housing section 171.
Then, through holes communicating with each other are provided on the back side of the display section 171, and wiring is passed through these through holes.

In the above configuration, the angle setting key 30 of the operation panel 30
When a is operated, the pulse motor 175 is rotated forward, for example, under the control of the main processor group 71 and the sub-processor group 73. Furthermore, when the angle setting key 309 is operated, the pulse motor 175 is rotated in reverse. Therefore, depending on the operation of the angle setting keys 30g and 309, the display section 302
is rotated as shown by arrows e and f in FIG. 1<C).

In this rotational state, when the angle setting keys 308 and 309 are no longer operated, the display section 302 is stopped at that rotational position.

According to the embodiment described above, the display section 302 is rotatably provided with respect to the operation panel 30, and the display section 302 is set to I! according to the operation of the angle setting keys 30g and 30s. ! ! It is operated by a pulse motor 175 that is driven. Therefore, it is possible for the angle setting key person to set the display on the liquid crystal display panel 303 at a position where it is easy to see the display.

Moreover, since this configuration is simple, it is economically advantageous.

Furthermore, since the display unit 302 is connected to the pulse motor 175 via the teeth W1174, 176, the gear 174
．． 176, the pulse motor 175 serves as a load for the display section 302. Therefore, it is possible to reliably hold the pulse in a fixed position.

Note that the setting angle of the display unit 302 is maintained by the pulse motor 1.
This may be done by supplying is to 75.

It goes without saying that various other modifications can be made without departing from the gist of the invention.

[Effects of the Invention] As described in detail above, according to the present invention, it is possible to provide an image forming apparatus having a relatively simple configuration and a liquid crystal display panel with an easy-to-read display.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the present invention, and FIG.
(a) is a side cross-sectional view of the main part showing the display section, (b) is a plan view of the main part showing the driving means of the display section, and (C) is the same diagram (
Fig. 2 is a side sectional view of the main part showing different operating states of a);
3 shows the configuration of the image forming apparatus, FIG. 2 is an external perspective view, FIG. 3 is a side sectional view, FIG. 4 is a plan view showing the configuration of the operation panel, and FIG. 5 is an I! FIG. 6 is a perspective view showing the configuration of the Ill 111 circuit, FIG. 7 is a perspective view of the main parts showing the spot light source, and FIG.
The figure is a side sectional view of a main part showing a spot light source. DESCRIPTION OF SYMBOLS 1...Main body, 2...Document stand, 10...Photosensitive drum, 30...Operation panel, 302...Display section, 30
3...Liquid crystal display panel, 30g, 309...Angle setting key, 30a-30d...Operation key, 71...
Main processor group, 131... spot light source, 15
0... Erasing array, 160... Array drive unit, 17
1...Accommodation department. Applicant's agent Patent attorney Takehiko Suzue (a) (c) Ri J1 Prisoner Figure 2 Figure 5 Figure 8

Claims (3)

[Claims] (1) The original placed on the original platen is optically scanned by a scanning means that is operated in response to the operation of the operating means provided on the operation panel, and an image corresponding to the image of the original is transferred to the transfer material. 1. An image forming apparatus comprising: a display means rotatably provided on the operation panel for displaying various types of information; and a drive means for driving the display means. (2) The image forming apparatus according to claim 1, wherein the display means comprises a liquid crystal display panel. (3) The image forming apparatus according to claim 1, wherein the driving means is operated in response to an operation of an angle setting key provided on the operation panel.