JP2559575B2 - Facsimile machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a facsimile apparatus.

[Prior Art] Although a facsimile machine is mainly intended to communicate with a partner station, it can function as a copy machine, and this mode is called a copy mode.

When executing this copy mode, first, the original is read and the read image information is temporarily stored in the image memory. Then, the image information is read from the image memory,
Print with a printer. Further, when a document is read, if there are a plurality of resolutions, the document is read according to the desired resolution.

That is, in a facsimile machine that can use the standard mode and the fine mode, one of the modes is designated and the document is read. Then, printing is performed at the read resolution.

However, in the above-described conventional example, when copying in the copy mode, the cost of copying is the same regardless of which resolution is adopted, but when copying at a low resolution, only a print with deteriorated image quality can be obtained. There's a problem.

[Object of the Invention] The present invention has been made in view of the above conventional problems, and an object of the present invention is to provide a facsimile apparatus which can always make a copy with a good image quality when copying in a copy mode. It is what

Embodiment of the Invention 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.
Have 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 that controls the image reading unit 100 and the laser printer 200 is built in.

 FIG. 3 is a diagram showing an 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 transfer section 240 transfers the toner image to the sheet, and the fixing section 250 fixes the toner image.

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 described later based on the data stored in 10.

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 stores the intermediate code, and a pixel density that reduces the pixel density according to the function of the partner station. It is composed of a conversion circuit 60, a selector 23 for selecting the MH coder 24 or the MR coder 25, a modem 30 for modulating a transmission signal, and an NCU 31 for 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.

 Next, the operation of the above embodiment will be described.

FIG. 5 is a flow chart showing the operation of one embodiment of the present invention.

First, when copying is started, it is determined whether the document is copied (copy mode) or the contents stored in the memory are copied (memory copy) (S10). If it is the copy mode, the mode of the resolution currently set is saved (S11).

For example, the standard mode (8 dots / mm x 3.85 lines / m
m), fine mode (8 dots / mm x 7.7 lines / mm),
If the standard mode is set in the facsimile having the high definition mode (16 dots / mm × 15.4 lines / mm), the standard mode is reset.

Then, the highest resolution mode is set (S12).
In the above case, the high definition mode is set. In this state,
The original is read (S13) and printed (S14). After printing, set the original resolution (S15).
In the above case, set the standard mode.

Thus, in the copy mode, if the copy is always performed at the highest resolution, the image quality of the copy obtained by the copy is improved.

The "copy mode" does not include "memory copy". Further, in a facsimile apparatus having only two modes of the standard mode and the fine mode, the fine mode has the highest resolution, and in a facsimile apparatus having only two modes of the phi mode and the high definition mode, the high resolution mode is used. Is the highest resolution.

On the other hand, if the memory copy mode is selected in S10, the read management data is printed (S20). This read management data is stored in the image memory 10
It is stored in a separate memory from.

After printing the above reading management data, the image memory
Print the image stored in 10. The resolution in the memory copy is the same as the resolution when the memory copy is read.

The reading management data includes the type of resolution, the presence / absence of halftone display, the distribution time, the destination, the number of pages and all pages, and the like.

FIG. 6 shows an example in which the read management data is printed on a print sheet. After recording the management data, the image data stored in the memory is recorded at the same resolution as when the memory was stored (S21).

As described above, if the read management data can be printed, the set conditions can be easily visually recognized in the broadcast communication and the like.

In the above embodiment, the facsimile machine having the laser beam printer has been described, but the present invention can be applied to facsimile machines having ordinary printers.

[Effects of the Invention] According to the present invention, when the reading copy mode is selected, the original image is read at the second resolution with high definition.
When making a copy of an original, as long as the reading copy mode is selected, there is an effect that a high-definition copy can be obtained without performing an operation of specifying a high-definition resolution. When storing the read original image in the storage means, the original image is read at the resolution instructed by the instructing means, so if the memory copy mode is selected and the image stored in the storing means is output, the instruction is given. It is possible to obtain an output of an image read at different resolutions, and to easily know at what resolution the actually transmitted image is transmitted.

[Brief description of drawings]

FIG. 1 is a block diagram showing an 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 diagram showing an example of a laser beam printer. FIG. 5 is a flow chart showing the operation of the above embodiment. FIG. 6 is a diagram showing an example in which the read management data is printed. c …… Contorola, 35 …… LBP controller, 50 …… C
PU, 100 ... Image reading unit, 200 ... Laser beam printer.

Claims (1)

(57) [Claims] 1. An instructing means for an operator to instruct a first resolution or a second resolution having a higher definition than the first resolution; and an original at the first resolution or the second resolution. A reading unit for reading an image; a storing unit for storing an original image read by the reading unit; a reading copy mode for recording an image read by the reading unit, or recording an image stored in the storing unit Mode selection means for selecting a memory copy mode to be executed; and recording means for recording the image read by the reading means or the image stored in the storage means; When the read copy mode is selected by selecting the means, the original image is read at the second resolution, while the original image read for the memory copy mode is read. When storing the image in the storage means, a facsimile apparatus, characterized in that a resolution instructed by the instruction means is a means for reading the original image.