KR100414884B1 - Fixation control method and apparatus of electrophotographic development method - Google Patents

Abstract

The disclosed subject matter relates to a fixing control method and apparatus for controlling the temperature of a fixing apparatus in a device such as a laser beam printer and a copier.

[0001] The present invention provides an electrophotographic apparatus for transferring a multicolor image to a recording sheet supplied by a pickup roller via a transfer member, and fixing and printing the multicolor image of the recording sheet through a fixing unit. Image processing into bitmap data of the; Forming an image on a recording sheet with the bitmap data; Fixing the image formed on the recording paper at a predetermined temperature; A first fixing temperature control step of controlling a predetermined fixing temperature of the fixing step to a first fixing temperature when there is a print command before processing of image data in the image processing step; And a second fixing temperature control step of fixing the image of the recording sheet by raising the fixing temperature to the second fixing temperature for a predetermined time during the image forming process in accordance with the printing instruction.

Accordingly, by controlling the fixing temperature of the fixing apparatus sequentially through two steps, the image of the recording paper is enthusiastically attached, thereby providing the effect of controlling the fixing temperature of the fixing apparatus efficiently and reducing the power consumption.

Description

Fixation control method and apparatus of electrophotographic development method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic apparatus such as a laser printer and a copying machine using an electrophotographic method, and more particularly, to fix the fixing temperature of the fixing apparatus in the first step from the image processing apparatus in a power saving mode immediately before printing. An electrophotographic development method and apparatus for controlling the fixing temperature at the preparation temperature and controlling the fixing temperature at the fixing preparation temperature during printing in the second step to minimize the power consumption of the fixing apparatus. will be.

In general, an electrophotographic apparatus using an electrophotographic development method, such as a copying machine, a monochrome / color laser beam printer, etc., causes the charging roller to charge the photosensitive member evenly on the outer circumferential surface of the photosensitive drum while the charging roller rotates. .

Then, the photosensitive member charged on the outer circumferential surface of the photosensitive drum forms an electrostatic latent image by light rays emitted from a light source such as a laser diode or the like that converts a digital signal into laser light.

At this time, the electrostatic latent image formed on the photosensitive drum is developed by the toner as it passes through the developing machine, is converted into a visible image, and is charged to the paper to be fed and fed by the pickup roller, so that the visible image of the photosensitive drum is transferred onto the paper.

The transferred paper is discharged after the image is fused by heat and pressure of the fixing unit.

When power is supplied to the electrophotographic apparatus, warm-up is performed for a predetermined time according to the characteristics of the apparatus, and when the warm-up is completed, an on-line mode for executing a print command is performed.

In addition, if there is no print command for a predetermined time in the ready mode, the standby mode is returned to the standby mode. When the print command is issued in the standby mode, the printing is performed through a warm-up process.

1 is a view schematically showing the internal structure of a general laser printer.

The laser printer includes a paper feeder comprising a recording paper cassette 109, which is a contract paper, a pickup roller 108 for contacting the uppermost recording paper of the recording paper cassette 109, and feeding one by one, and a photosensitive drum 100 provided inside the main body. A transfer roller 102 for applying electric charges to the paper to transfer the developed image on the sheet), and a fixing device for fixing the transfer image of the recording paper by sandwiching the recording paper having passed through the transfer roller 102; have.

Further, a developing device 106 having a photosensitive device and a developing roller 106a is detachably attached to the inside of the main body.

The photosensitive device includes a charging roller 101 for applying charge to the photosensitive drum 100 before forming an electrostatic latent image with the photosensitive drum 100, and a photosensitive member of the photosensitive drum 100 to expose the charge of the photosensitive member 100. An electrostatic part (not shown in the figure) and an exposure apparatus 107 for converting a digital signal into laser light to form an electrostatic latent image on the photosensitive drum 100 are located.

In addition, the fixing apparatus includes a heat generating lamp 104 that generates heat at a predetermined temperature when a print command is issued to the electrophotographic apparatus, and the heat generating lamp 104 is enclosed and press-fitted into the fixing roller 105 so as to be pressurized. And a heat generating roller 103 for fusion and discharging the transfer image of the recording paper to be conveyed from.

In the conventional laser beam printer of the electrophotographic apparatus, the recording sheet of the paper cassette 109 is first fed by the pickup roller 108 to the photosensitive member apparatus through the developing unit 106 by the pickup roller 108 in the paper feeding apparatus. While the 101 rotates in the same direction as the photosensitive drum 100, the surface of the photosensitive layer 100 of the photosensitive drum 100 is evenly charged by the charging high pressure of the charging roller 101 supplied from a power supply device (not shown). do.

At this time, an electrostatic latent image is generated by a light source such as a laser diode, for example, an exposure apparatus 107 for converting an arbitrary digital signal from a computer or the like into light in the charged portion of the photosensitive drum 100.

The electrostatic latent image generated on the surface of the photosensitive drum 100 is turned into a visible image by the toner layer formed on the developing roller 106a of the developing unit 106, and is recorded by the transfer voltage of the transfer roller 102 supplied from the power supply device. Is transferred on.

The sheet of recording paper on which the electrostatic latent image has been transferred is fused and discharged to the outside while passing between the pressure roller 105 and the heating roller 103 heated by the heating lamp 104 in the fixing apparatus.

In other words, the heating roller 103 is heated by supplying a current to the heating lamp 104.

However, maintaining the temperature of the heating roller 103, ie, the heat roller, used in the fixing apparatus at a predetermined fixing temperature is inefficient in terms of power consumption.

When the data is not received from the external computer to the receiving end within a predetermined time interval, it is controlled to limit the power supply of the fixing device or to block the supply.

When the fixing device is in a state of controlling power consumption (hereinafter, abbreviated as a power saving state), the temperature of the fixing device decreases.

Therefore, print failure occurs when printing is performed in this state. Thus, power should be supplied to the fixing device to resume printing and the temperature of the fixing device should be controlled to return to a predetermined temperature.

In this case, however, until now, the data receiving end has resumed the electricity supply of the fixing apparatus as a standard when receiving data from the host computer.

However, the received data is not necessarily limited to print data.

For example, the received data includes control data and data about the shape of each font used for printing. When data irrelevant to the actual print execution process is received, the electricity supply to the fixing unit is resumed and the temperature of the fixing unit reaches a predetermined high temperature. Thus, conventional laser printers are not effective for controlling the power consumed.

Significant power is required when the temperature of the fixing device changes from a low temperature to a predetermined high temperature during the power saving state.

Thus, a problem arises in responding to all received data and frequently controls the temperature of the fixing unit, resulting in increased power consumption.

Methods for solving the above-described problems are well illustrated in USP 5,550,637 and USP 5,274,461.

A method of reducing power consumption by supplying electricity to the fixing apparatus so that the temperature of the fixing apparatus reaches a predetermined fixing temperature only when data to be actually printed is received (USP 5,550,637) and data received from the host apparatus as bitmap data. A method of controlling the temperature of the fixing apparatus by setting the time point for controlling the temperature of the fixing apparatus so as to be equal to the time when the temperature of the fixing apparatus is raised to a predetermined fixing temperature at the time when the development is completed is estimated (USP 5,274,461).

However, in the above-described electrophotographic apparatuses using the conventional electrophotographic development method, such as a copying machine and a laser beam printer, the proposed methods (USP 5,550,637 and USP 5,274,461) can obtain a limited effect in forming a monochrome mono image. have.

The effect is not remarkable in a multicolor image forming apparatus comprising a plurality of developing devices for forming a multicolor image and a transfer member for transferring the multicolor image onto a recording sheet such as paper. The multicolor image forming apparatus that receives a print command from an image processing apparatus that controls a printer requires an initial driving process of confirming the normal driving of the laser scanner and the photosensitive member or the transfer body before executing the printing process. It is considerably longer than the image forming apparatus. It is then fed from the feeder and attached to the transfer device. The image developed on the photosensitive member is transferred onto a recording paper adsorbed on the transfer member by the developer of the multicolor developer. The formation of the multicolor image is performed in the order of yellow, magenta, cyan and black, and then separated from the transfer body and transferred to the fixing apparatus. The time interval from the start of printing until the time of fixing in the actual fixing device is quite long.

In the fixing temperature control of the fixing apparatus according to the conventional method, the power supply is continuously maintained to maintain the fixing temperature even in a section in which fixing is not actually performed, and its consumption is also small.

Accordingly, an object of the present invention is to fix the image on the recording paper which is not fixed in the fixing device by transferring the printing onto the recording paper absorbed by the transfer member and separating the recording paper from the transfer member in view of the conventional problems as described above. In order to reduce the power consumed by controlling the fixing temperature of the fixing device to reach a predetermined fixing temperature when transported to provide a fixing method and apparatus of an electrophotographic development method such as a printer or copier There is a purpose.

According to an aspect of the present invention, there is provided a fixing control apparatus of an electrophotographic development system, including: image processing means for processing coded and input data from an external host into bitmap data in pixel units; Image forming means for forming an image on a recording sheet with bit map data obtained by said image processing means; Power supply means for supplying power to fix an image formed on the recording sheet; Fixing means for fixing an image formed on the recording paper by changing a temperature by the supplied power; A first fixing temperature control for supplying power to the fixing means to control the fixing temperature of the fixing means to be the first fixing temperature when instructing printing before outputting the image data from the image processing means to the image forming means; Way; And second fixing temperature control means for fixing the image of the recording sheet by raising the fixing temperature of the fixing apparatus to become the second fixing temperature at a predetermined time during the image forming process, in accordance with the printing instruction. It is done.

In the electrophotographic development type fixing control apparatus according to the present invention, the image processing means includes: receiving means for receiving coded data from a host; Image storage means for storing the image data expanded into the bitmap data in pixel units; Output means for outputting bitmap data to image forming means for performing electrophotographic image forming; And interface means for requesting status information from the image forming means, outputting commands for instructing an operation, and receiving a response to the command.

In the fixing control apparatus of the electrophotographic development system according to the present invention, it is preferable that the image forming means includes an initial driving operation of the photosensitive member and the transfer member.

In the fixing control apparatus of the electrophotographic development system according to the present invention, it is preferable that the image forming means includes image forming processing of single color and multicolor.

According to another aspect of the present invention, there is provided a fixing control method of an electrophotographic development method, the method including: image-processing coded input data from an external host into bitmap data in pixel units; Forming an image on a recording sheet with the bitmap data; Fixing the image formed on the recording paper at a predetermined temperature; A first fixing temperature control step of controlling a predetermined fixing temperature of the fixing step to become a first fixing temperature when there is a print instruction command before processing the image data in the image processing step; And a second fixing temperature control step of fixing the image of the recording sheet by raising the fixing temperature to become the second fixing temperature for a predetermined time during the image forming process in accordance with the printing instruction.

In the fixation control method of the electrophotographic development method according to the present invention, the first fixing temperature control step is such that the temperature of the fixing apparatus reaches a first fixing temperature while image forming is being performed by the image forming step. It is desirable to control.

In the fixation control method of the electrophotographic development method according to the present invention, the second fixing temperature control step is performed in a state in which image forming is performed in the image forming step and the fixing temperature in the fixing step is maintained at the first fixing temperature. After the passage of time, it is preferable to control the temperature of the fixing step to the second fixing temperature so as to control the image of the recording sheet to be passionately fixed by the fixing step.

In this way, the temperature of the fixing apparatus is set when the transfer is completed onto the recording sheets adsorbed to the transfer member and the recording sheets are separated from the transfer member to be transferred to fix the image on the recording sheet not fixed in the fixing apparatus to the fixing apparatus. It can be seen that the power consumption is reduced by controlling the fixing temperature to be the fixing temperature of.

As a result, by controlling the fixing temperature of the fixing apparatus sequentially through the first and second stages, the image of the recording paper is enthusiastically deposited, and thus the fixing temperature of the fixing apparatus is efficiently controlled and power consumption is reduced.

And, there may be a plurality of embodiments of the present invention, the following will be described in detail with respect to the most preferred embodiment.

This preferred embodiment enables a better understanding of the objects, features and advantages of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the fixing control device of the electrophotographic development method according to the present invention.

Further, the fixing control apparatus of the present invention can be applied to various electrophotographic apparatuses using the electrophotographic developing system.

Thus, Figs. 2 to 4 used in the explanation are drawings focusing on various electrophotographic apparatuses using an electrophotographic developing system rather than a specific fixing control apparatus.

In the following description, an example in which the fixing control device of the present invention is applied to a laser beam printer using an electrophotographic developing method is considered.

2 is a block diagram of an embodiment provided in the description of a fixing control device in the electrophotographic developing method of the present invention.

According to the present embodiment, an image processing unit 201 for processing and outputting coded and input data from an external device such as an external host computer 200 into bitmap data in pixel units, and the image processing unit ( An image forming unit 202 which receives the bitmap data output from 201 to form an image on a recording sheet, and a power supply device (not shown) to supply power to fix the image formed on the recording sheet; And a fixing apparatus 308 for fixing an image formed on the recording paper by changing the temperature by the supplied power supply, and before outputting image data from the image processing unit 201 to the image forming unit 202. A first for supplying and controlling power to the fixing device 308 so that the fixing temperature of the fixing device 308 becomes the first fixing temperature when there is a printing command from the computer 200. A second temperature for fixing the image of the recording sheet by raising the fixing temperature of the fixing apparatus 308 to the second fixing temperature for a predetermined time during the image forming unit 202 according to the contact temperature control unit and the printing instruction; It consists of a fixing temperature control unit.

The image processing unit 201 receives a coded data input from the host computer 200 and temporarily stores and outputs the received buffer 201a and the coded data input from the receive buffer 201a. The image buffer 201b, which is developed as a unit of bitmap data and stored as image data, and the image data input to the image buffer 201b are output to the image forming unit 202 which performs the electrophotographic image forming. And an interface unit 201d capable of requesting status information of the image forming unit 202, outputting commands for instructing operation, and receiving a response to the command.

3 is a schematic diagram illustrating an internal structure of the image forming unit of the present invention to which FIG. 2 is applied.

The image forming unit 202, that is, a color leisure beam printer using an electrophotographic developing method, is provided with a photosensitive drum 303 supported by a rotating body and coated with a thin photosensitive member on the surface thereof, and the photosensitive drum 303 Is rotationally driven by a drive device not shown in the figure. A primary charging device 311 that charges the surface of the photosensitive drum 303 to a constant potential around the photosensitive drum 303, and an exposure apparatus that exposes the surface of the photosensitive drum 303 to form an electrostatic latent image. 300, a rotary developing device 301 for forming a toner image (visible image) for forming an electrostatic latent image, and a cleaning device 312 for removing residual toner on the surface of the photosensitive drum 303 are provided. .

The transfer member 302 includes a transfer drum 302a supported by the rotating body, and the transfer drum 302a is rotated clockwise.

The transfer drum 302a of the transfer member 302 has a cylindrical transfer cylinder 30 as shown in FIG. 4, and a dielectric sheet 31 such as PET or PVDF is attached to the transfer cylinder 30. It is.

The recording paper 309 is electrostatically or mechanically attached to the surface of the transfer drum 302a. A transfer charging high pressure (not shown) is applied to the transfer barrel 30 of the transfer drum 302a to transfer the toner image formed on the photosensitive member of the photosensitive drum 303 to the recording paper 309. In addition, a paper separating charger 304 is provided to discharge the recording paper 309 where transfer is completed. Furthermore, a separating nose 305 is provided at a position facing the transfer drum 302a so that the tip thereof contacts the surface of the transfer drum 302a to separate the recording paper 309 from the transfer drum 302a after completion of the transfer. .

In addition, a cleaning device 313 is provided at a portion facing the transfer drum 302a to clean the surface of the transfer drum 302a after completion of the transfer.

Then, the adsorption charge roller 307 is provided at the position facing the transfer drum 302a, so that the adsorption charging high pressure is applied to attach the recording paper 309 to the transfer drum 302a.

Thus, the transfer agent separated from the transfer drum 302a, i.e., the recording paper 309, is configured to pass through the heat roller 308a of the fixing device 308 so as to fix the toner image.

On the other hand, the developing device 301 includes four developing devices 301b to 301e for storing four color toners of yellow toner, magenta toner, cyan toner and black toner, respectively, in the rotary turret 301a and these four developing devices. It comprises a cylindrical developer supporter 301f that houses 301b to 301e and is supported by a rotating body.

The rotary turret 301a of the developing device 301 rotates counterclockwise to move the predetermined developing devices 301b to 301e to a position facing the surface of the photosensitive drum 303, thereby electrostatically discharging the surface of the photosensitive drum 303. The latent image is developed and the so-called four-color all colors are developed by one rotation of the developer support 301f. In the drawing, reference numeral 306 denotes an antistatic roller, and 310 denotes a density detection for detecting an image density. Module.

Preferred embodiments of the present invention configured as described above will be described in more detail with reference to FIGS. 2 to 5.

First, the image processing unit 201, which is in charge of the overall control of starting or stopping an image forming (printing) operation through the image forming unit 202, is not fixed to the print processing operation after a predetermined time has elapsed. Switching to the power saving mode T1 such as cutting off the power supplied to the system.

In other words, the image processing unit 201 receives the coded data to be printed from the host computer 200 through the reception buffer 201a.

The coded data input through the reception buffer 201a is stored in the image buffer 201b as bit map data in pixel units.

The bitmap image data of the pixel unit stored in the image buffer 201b is converted into a laser beam in the exposure apparatus 300 through the output unit 201c and the interface unit 201d and printed by the image forming unit 202. .

As described above, the image processing unit 201 controls the power saving mode such as cutting off the power supplied to the fixing device 308 when the image processing unit 201 is not in the print processing operation, that is, after a predetermined time has elapsed in the standby state T10. Control is performed during the period T1 to enter the power saving mode.

In the power saving mode, the temperature of the fixing apparatus 308 becomes below the fixing temperature and the fixing apparatus 308 needs to be warmed up to perform the printing operation again.

Warming up consumes a considerable amount of power. The image processing unit 201 receives data including image information from the host computer 200 as described above, wherein the image forming associated with the image forming of the image forming unit 202 through the interface unit 201d is performed. Receive all information of unit 202.

If the image forming unit 202 is not in a malfunction, an instruction is given via the interface unit 201d to cancel the power saving mode at an appropriate time before instructing a print command.

The image forming unit 202, which has received the power saving instruction, immediately fixes the first fixing temperature during the first fixing temperature control section T2 in which the fixing apparatus 308 is raised to a predetermined temperature immediately before fixing according to the fixing temperature control timing of FIG. Perform temperature control.

For example, in the power saving mode, when the fixing temperature is blocked or maintained at room temperature and the fixing temperature is 170 degrees, the first fixing temperature is maintained at 150 degrees.

When the image forming unit 202 receives a printing command from the image processing unit 201 during the first fixing temperature control section T2, the laser scanner, the photosensitive drum 303, and the transfer drum 302a of the transfer member 302 operate normally. The initial driving is performed during the printing initial driving period T11 for confirming.

In this printing initial driving period T11, the temperature of the heat roller 308a of the fixing device 308 reaches the first fixing temperature during the first fixing temperature control section T2 by the first fixing temperature control and the second fixing temperature. Printing is performed during the printing section T12 while the first fixing temperature is maintained for a predetermined time during which the control is switched to.

The predetermined time at which the image of the recording sheet reaches the second fixing temperature of the second fixing temperature control section T3 which causes the image of the recording paper to be enthusiastically fixed by the fixing apparatus 308 at the first fixing temperature during the printing operation is the image forming unit 202. Is stored in a storage means (not shown).

After the predetermined time has elapsed, in the second fixing temperature control section T3, the temperature of the fixing device 308 is controlled as the second fixing temperature so that the image of the recording sheet is enthusiastically fixed in the fixing section T13.

Therefore, by controlling the fixing temperature in two stages through the first and second fixing temperature control sections T2 and T3 described above, power consumed by the fixing apparatus 308 is reduced.

On the other hand, as a comparative example, in contrast to the conventional configuration, that is, the fixing temperature control of the fixing device to continuously supply power to maintain the fixing temperature even in a section where the fixing is not actually performed, the present invention provides a power saving mode. When the recording sheet is separated from the transfer member and transferred to the fixing apparatus, the zoom of the fixing apparatus is controlled in two steps to reach the first fixing temperature and the second fixing temperature.

As a result, it is possible to reduce power consumption by flowing the power supplied to the heat roller of the fixing apparatus in a substantially constant width in two stages, that is, reaching the first fixing temperature and the second fixing temperature. I can see.

As described above, in this embodiment, an electrophotographic developing method such as a color laser beam printer or the like composed of a plurality of developing devices for forming a multicolored image and a transfer device for transferring the multicolored images onto recording paper such as paper is used. It is possible to save power by controlling the consumption of power supplied to the fixing device in two stages.

In addition, while specific embodiments of the present invention have been described and illustrated above, it is obvious that the present invention may be variously modified and implemented by those skilled in the art.

Such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments should fall within the appended claims of the present invention.

It is clear from the above description that according to the electrophotographic fusing control apparatus of the present invention, the fixing temperature by the power supplied to the fixing apparatus is sequentially controlled through the first and second steps, thereby to display the image of the recording sheet through the transfer member. By sticking passionately, the fixing temperature of the fixing device can be efficiently controlled and the power consumption can be significantly reduced.

1 is a view schematically showing the internal structure of a typical laser printer.

2 is a block diagram of an embodiment provided in the description of a fixing control device in the electrophotographic developing method of the present invention;

3 is an exemplary embodiment schematically showing the internal structure of the image forming unit of the present invention to which FIG. 2 is applied.

4 is a cross-sectional view showing a transfer drum structure of the transfer member of FIG.

5 is a temperature control timing diagram of the fixing device according to FIG. 2.

* Explanation of symbols on the main parts of the drawings *

200: host computer 201: image processing unit

201a: Receive buffer 201b: Image buffer

201c: output unit 201d: interface unit

202: image forming unit

Claims (10)

Image processing the coded data of the host into bitmap data in pixels; Forming an image on recording paper with the bit map data; Fixing the image formed on the recording paper at a predetermined temperature; A first fixing temperature control step of controlling a predetermined fixing temperature of the fixing step to become a first fixing temperature when there is a print instruction command before processing the image data in the image processing step; And And a second fixing temperature control step of fixing the image of the recording paper by raising the fixing temperature to become the second fixing temperature for a predetermined time during the image forming process in accordance with the printing instruction. Way. The method of claim 1, And the first fixing temperature control step controls the temperature of the fixing apparatus to reach a first fixing temperature while image forming is being performed by the image forming step. The method of claim 1, In the second fixing temperature control step, after the predetermined time has elapsed while image forming is performed in the image forming step and the fixing temperature of the fixing step maintains the first fixing temperature, the temperature of the fixing step is changed to the second fixing temperature. An electrophotographic developing method, characterized in that the control is performed so that the image of the recording sheet is fixed by the fixing step. The method of claim 1, And the first fixing temperature control step includes initial operations of the photosensitive member and the transfer member. An electrophotographic apparatus for transferring a multicolor image developed through a developing machine to a recording paper supplied by a pickup roller through a transfer member, and fixing and printing the multicolor image of the recording paper through a fixing means. Image processing means for processing the coded data of the host into bitmap data in pixels; Image forming means for forming an image on a recording sheet with bitmap data obtained by said image processing means; Power supply means for supplying power to fix an image formed on the recording sheet; Fixing means for fixing an image formed on the recording paper by changing a temperature by the supplied power; First fixing temperature control means for controlling the power supply of the fixing means so that the temperature of the fixing means becomes the first fixing temperature when there is a print command before outputting image data from the image processing means to the image forming means; And And the second fixing temperature control means for fixing the image of the recording sheet by raising the temperature of the fixing apparatus to be the second fixing temperature at a predetermined time during the image forming process by the image forming means in accordance with the printing instruction. Fixation control device of photo developing method. The method of claim 5, The image processing means includes: receiving means for receiving coded data from a host; Image storage means for storing the image data expanded into the bitmap data in pixel units; Output means for outputting bitmap data to the image forming means; And And an interface means for requesting status information from the image forming means, outputting commands for instructing operation, and receiving a response to the command. The method of claim 5, And the image forming means includes an initial driving operation of the photosensitive member and the transfer member. The method of claim 7, wherein And said image forming means includes image forming processing of monochrome and multi-color. The method of claim 5, And the first fixing temperature control means controls the temperature of the fixing means to reach the first fixing temperature while image forming is being performed by the image forming means. The method of claim 5, The second fixing temperature control means controls the temperature of the fixing apparatus to the second fixing temperature after a predetermined time has elapsed while the image forming means is operated and the temperature of the fixing apparatus maintains the first fixing temperature. An electrophotographic developing method, wherein the image of a recording sheet is passionately attached by the fixing means.

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