JP2678246B2 - Facsimile machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a facsimile apparatus. [Prior Art] Since a laser beam printer can perform printing at a very high speed, it is conceivable to use the laser beam printer in a facsimile apparatus by taking advantage of this feature. In this case, there is a problem that the received image cannot be recorded at all and the image is chipped at the lateral edge. That is, the A4 size original has a width of 210 mm as shown in FIG. 10 (1), while the effective recording area of the laser beam printer is in the main scanning direction as shown in FIG. 10 (2). Only 198 mm. Therefore, for example, a non-recorded area is formed with a width of 4 mm at the left end and 8 mm at the right end. This non-recorded area is generated because the separation belt is used in the laser beam printer. [Object of the Invention] According to the present invention, a non-recording area in which image information is not recorded is set at an edge of the recording paper, and the image information received by the receiving means is recorded in a recordable area on the recording paper excluding the non-recording area. The facsimile apparatus has a selection unit for selecting a reduction recording mode for reducing and recording the received image information, and when the reduction recording mode is selected, the received image information of a predetermined standard size is transferred to the predetermined standard size. The image information reduced by the image information reducing means for reducing the received image information of the predetermined standard size is recorded in the recordable area of the recording paper so as to be recorded on the recording paper of the same size as If is not selected, the image information corresponding to the recordable area of the image information received by the receiving means is recorded on the recording paper at the same size, so that a part of the received image information is prevented from being lost. If desired, the reduced recording mode can be selected, which can prevent a part of the received image information from being lost. On the other hand, even if a part of the received image information is lost, the received image information can be scaled to the same size. If it is desired to prioritize recording in step 1, the reduced recording mode need not be selected, which allows the received image information to be recorded in the same size. FIG. 1 is a block diagram showing an embodiment of the present invention. In the above embodiment, the image reading unit 10 as an image reading system is used.
0, a laser printer 200 as a recording system, and a controller C for controlling the image reading unit 100 and the laser printer 200.
And FIG. 2 is a perspective view showing the image reading unit 100. A predetermined document is inserted from the document insertion unit 110, the image information is converted into an electric signal by an image reading unit provided inside, and the document is discharged from the discharge tray 120. Further, the image reading section 100 is provided with an operation panel 130,
A controller C for controlling the image reading unit 100 and the laser printer 200 is built in. FIG. 3 is a diagram showing the operation panel. The operation panel 130 is for executing standard mode, fine mode selection, mini-fax, halftone designation, dial operation of the partner station, and other functions. FIG. 4 is a longitudinal sectional view showing an example of the laser printer 200. The laser printer 200 includes an exposure device 210 and a developing unit.
220, paper cassette 230, transfer unit 240, and fixing unit 250
And a stacker section 260. Exposure device 210 is a laser
It has a laser unit including 211 and a scanner including polygon mirror 212. The developing unit 220 includes a photosensitive drum 221 and a cleaner 222.
And visualizes the latent image formed on the drum 221 by the reflection mirror 213. The paper in the paper feed cassette 230 is sent by a paper feed roller 231 and a transport roller 232, and is temporarily stopped by a registration shutter 233. Thereby, the irradiation of the laser beam and the rotation of the drum 221 are synchronized with the sheet feeding, and then the sheet is fed to the drum 221 by the feed roller 234. Then, the toner image is transferred onto the paper at the transfer unit 240, and the paper is separated from the drum 221 by the separation belt 245. Then, the toner image is fixed in the fixing unit 250. The above-described series of operation timing controls such as paper conveyance, character formation, development, transfer, and fixing are controlled by an image memory described later.
This is performed via a laser printer controller 35, which will be described later, based on the data stored in. In addition, a toner concentration sensor 271 that detects the toner concentration
A temperature sensor 272 that detects the temperature of the fixing unit 250, an LED 273 that detects the presence of paper, and a light receiving element 274 are provided. Returning to FIG. 1, the controller C will be described. The controller C mainly includes a transmission system for transmitting data read from the image reading unit 110 to the partner station, a reception system for transmitting data received from the partner station to the laser printer 200, and an image memory for storing predetermined image data. 10 and a CPU 50 for controlling the entire controller C. The transmission system includes a reader interface 21, an intermediate coder 22 that compresses and encodes read data into an intermediate code, an image memory 10 that records this intermediate code, and a pixel density conversion that reduces the pixel density according to the function of the partner station. circuit
Selector to select 60 and MH coder 24 or MR coder 25
23, a modem 30 that modulates a transmission signal, and an NCU 31 that performs line control. The above signal system is an NCU31 and a modem 3 for demodulating a received signal.
0, an MH intermediate decoder 41, an MR intermediate decoder 42, a multiplexer 43, an image memory 10 for storing an intermediate code via the multiplexer 43, a pixel density converting means 61 having a dot overlapping means, and an intermediate coder. It is composed of a decoder 44 for converting into a video signal and a laser printer controller 35 for controlling the laser printer 200. The image memory management circuit 11 manages the entire remaining capacity of the image memory 10, writing, reading, and the like. The CPU 50 controls the entire controller C. The control program is stored in the ROM 51, and each data necessary for executing the program is stored in the RAM 52. The image memory 10 sends stored data in accordance with the transmission speed of the line 400 at the time of transmission, stores one page of data at the time of reception, and then sends the stored data to the decoder 44.
When the image memory 10 is used as a retention memory, the information is stored until the multi-copy ends, and when the image memory 10 is used as a broadcast transmission memory, the broadcast transmission ends. Until that time, the information is stored. Reference numeral 300 is a telephone. In the above embodiment, the receiving means receives the image information, the non-recording area where the image information is not recorded is set at the edge of the recording paper, and the receiving means receives the recordable area on the recording paper excluding the non-recording area. This is a facsimile device for recording image information, and the pixel density conversion circuit 44 is configured so that the image information of the predetermined standard size received by the receiving means is recorded in the recordable area of the recording paper of the same size as the predetermined standard size. , An example of image information reducing means for reducing the received image information of a predetermined standard size. Next, the operation of the above embodiment will be described. FIG. 5 is a flowchart showing the operation of one embodiment of the present invention. First, the same size copy mode is set as the initial setting, and the reception 11/12 mode is set (S11, S1
2). The reception 11/12 mode is a mode in which the vertical length and the horizontal length of the transmission original are forcibly reduced to 11/12 when received. That is, the document width shown in Fig. 10 (1)
In this mode, 210 mm is reduced to 198 mm, which is the width of the effective recording area of the laser beam printer (shown in (2) of the same figure). Here, although 198/210 and 11/12 are not equal to each other, 11/12, which is an easily understandable number, is used for convenience. Further, in this case, in order to make the aspect ratio the same, the vertical direction is also reduced at the same ratio. Next, it is determined whether to execute the copy mode or receive (S13). If not, proceed to the key processing routine shown in FIG. 6 (S40). When the power is turned on, neither the copy nor the reception is performed, so that the key processing routine is automatically executed. In the key processing routine, it is determined whether or not the copy 11/12 key is pressed (S41). Copy above 11/12
The key is a key for reducing the original image to 11/12 and copying it. If the copy 11/12 key is pressed, the copy 11/12 flag is set (S42), the copy 11/12 LED indicating that the copy 11/12 mode is adopted is lit (S43), and the system stands by. . If the copy 11/12 key has not been pressed, it is determined whether the receive 11/12 switch has been reset (S44). The reception 11/12 switch is installed inside the facsimile apparatus and resets the reception 11/12 mode by software, and is called a soft switch. If the reception 11/12 switch is reset, the reception 11/12 flag is reset (S45) and the system stands by. If the reception 11/12 switch has not been reset, other key processing is performed (S46), and then the operation waits. On the other hand, in S13 shown in FIG. 5, if it is a copy or a reception, it is judged whether it is a copy or not (S14), and if it is not a copy, it is a reception, and in this case, a reception flag is set (S15). . Then, the receiving operation is started (S1
6). Then, it is judged whether or not the reception 11/12 mode is set (S17), and when the reception 11/12 mode is set (when not reset by the soft switch), the waiting time T is set to t2. The waiting time T is the time from when the horizontal synchronizing signal is generated until the image signal is sent to the semiconductor laser 211. The longer the waiting time T, the more the position of the recorded image shifts to the right with respect to the printing paper. That is, the longer the waiting time T, the greater the amount by which the center of the image shifts to the right with respect to the printing paper. Further, in the case of the same size copy, the waiting time is set to t1 and there is a relation of t1 <t2. An example of this is shown in FIG. Further, FIG. 8 is a circuit diagram of a main part for shifting the image center with respect to the printing paper. A beam detector 280 is provided at the end of the drum 221.
When this beam detector 280 detects a beam,
Generates a horizontal sync signal. The output port 281 receives information of t1 (or t2) used as the waiting time T from the CPU 50 and holds this information. The program counter 282 starts counting the clock of the clock generator 283 after the horizontal synchronizing signal is generated, counts the clock corresponding to the time t1 (or t2), and then outputs the borrow signal. Gate 284
When it receives the borrow signal, the gate opens and the image signal is sent to the semiconductor laser 211. As a result, the CPU50
Since the image is printed after the time t1 (or t2) designated by, the position of the image center on the printing paper can be freely adjusted. An example of adjusting the image center position in this way is shown in FIG. FIG. 9 (1) shows a state with a center shift, and FIG. 9 (2) shows a state without the center shift. Note that FIG. 9 shows an example in which only the horizontal direction is reduced. Returning to the flowchart of FIG. 5, the waiting time T is t in S18.
After setting to 2, the main scanning is thinned (S19).
In this case, since the size is reduced to 11/12, one dot signal is thinned out every 12 dots. It also thins out sub-operations (S20). In this case, the signal of one line is thinned out every 12 lines. Then, the printing operation is performed according to the thinned-out signal (S21). After the printing is completed, it is determined whether the next operation is copying (S22). If it is a copy, the copy 11/12 mode is reset (S23), and if it is not a copy, the reception 11/12 mode is reset (S24). That is, for each communication,
Alternatively, the 11/12 mode is canceled and the normal size mode is restored for each copy. Alternatively, S23 or S24 may be omitted.
In other words, after pressing the copy 11/12 key, unless you return the key, you can always reduce it to 11/12 when copying, and unless you reset the 11/12 mode with the soft switch, 11 / You may make sure to execute 12 modes. On the other hand, when it is determined in S31 that the copy 11/12 mode is not set (when the copy 11/12 mode key is not pressed), the waiting time T is set to t1 (S32) and the printing operation is performed. (S21). In this case, the normal size mode is set. As described above, when the 11/12 reduction mode is selected, the width of the separation belt image loss can be compensated, and the entire transmitted or copied image can be viewed. Also,
In the receiving mode, the 11/12 mode is prioritized, and in the copy mode, the normal mode is prioritized, which is extremely convenient. In the above embodiment, the 11/12 mode is the image signal,
It is reduced to 11/12 in the up-down direction and the left-right direction, but it may be reduced at a rate other than this ratio. That is, it is only necessary to adopt the effective recording mode in which the image is reduced so that the image is stored in the effective recording area. This effective recording mode is
The same can be applied to both the copy mode and the reception. The above embodiment can be applied to a facsimile machine using a printer other than the laser beam printer. EFFECTS OF THE INVENTION According to the present invention, the non-recording area in which the image information is not recorded is set at the edge of the recording paper, and the image information received by the receiving unit is recorded in the recordable area on the recording paper excluding the non-recording area. A facsimile apparatus for recording has a selection unit for selecting a reduced recording mode for reducing and recording received image information. The image information reduced by the image information reducing means for reducing the received image information of the predetermined standard size is recorded in the recordable area of the recording paper so as to be recorded on the recording paper of the same size as the standard size.
If the reduced recording mode is not selected, the image information corresponding to the recordable area of the image information received by the receiving means is recorded on the recording paper at the same size, so that a part of the received image information is prevented from being lost. If so, it is possible to prevent a part of the received image information from being lost by selecting the reduced recording mode. On the other hand, even if a part of the received image information is lost, the received image information is recorded at the same size. If the priority is given to (1), the reduced recording mode is not selected, so that the received image information can be recorded at the same size.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a perspective view showing an example of an image reading unit. FIG. 3 is a diagram illustrating an example of an operation panel. FIG. 4 is a vertical sectional view showing an example of a laser beam printer. FIG. 5 is a flowchart showing the operation of the above embodiment. FIG. 6 is a flowchart showing the key processing routine. FIG. 7 is a diagram showing the timing of shifting the image center in the above embodiment. FIG. 8 is a block diagram for obtaining the timing shown in FIG. FIG. 9 is a diagram showing an example in which the center of the image is shifted. FIG. 10 is a diagram showing an example of printing without reduction. C: controller, 35: LBP controller, 50: CPU, 100: image reading unit, 200: laser beam printer.

Claims (1)

(57) [Claims] When the receiving means receives the image information and the non-recording area where the image information is not recorded is set at the edge of the recording paper, the image information received by the receiving means in the recordable area on the recording paper excluding the non-recording area. In a facsimile apparatus for recording the image information of a predetermined standard size received by the receiving means,
Image information reducing means for reducing the image information of the predetermined standard size received by the receiving means so as to be recorded in the recordable area of the recording paper having the same size as the predetermined standard size; and reducing the received image information. Selecting means for selecting a reduced recording mode for recording by means of; and when the reducing recording mode is selected by the selecting means, the image information reduced by the image information reducing means can be recorded on the recording paper. On the other hand, if the reduced recording mode is not selected by the selecting means, the image information corresponding to the recordable area of the image information received by the receiving means is recorded on the recording paper in the same size. A facsimile device characterized by the above.