JPH0252567A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To obtain a reproduced recording picture and a communication time in matching with the transmission original by varying the read speed in response to fine or coarse document in an original with a set marker. CONSTITUTION:A read section 1 outputs a read picture signal 1a of a marker 3a and a marker detection section 4 identifies a signal of the marker 3a included in the picture signal 1a from a reference value and outputs a fine line density control signal 4a. The read section 1 decreases the speed of the main scanning and subscanning by a command of the signal 4a and when the marker 3b is read the speed of the main scanning and subscanning is increased by using a coarse line density signal 4a from a marker detection section. A communication control section 6 adds fine/coarse line density information to a picture signal and sends the result to a line 7. A reception recording section 8 controls the speed of the main scanning and subscanning according to the fine/coarse line density information received from the line 7. Thus, the reproduced recording picture and communication time in matching with the transmission original is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile device, and more particularly to a facsimile device that reads a document and prints on recording paper at variable scanning line density.

[Conventional technology]

In a conventional facsimile machine, a person on the sending side looks at the size of the characters and the thickness of the lines on the document, operates a line density (or resolution) switch, selects coarse, standard, fine, etc., and then sends the document.

[Problem to be solved by the invention]

The conventional facsimile machine described above sends information on the selected linear density to the other party's device at the beginning of communication, and then transmits the read image signal with the linear density fixed. If the transmission time is increased, fine letters become unclear, and if the line density is reduced, the transmission time becomes longer.

[Means to solve the problem]

The facsimile apparatus of the present invention includes a reading means for switching the reading linear density at an arbitrary sub-scanning position of a document, a means for adding linear density information according to the reading linear density to an image signal and transmitting the image signal, and a receiving linear density. and receiving means for printing and recording the image signal at a linear density according to the information.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of one embodiment of the present invention.

The reading unit 1 sets the scanning line density according to the control signal 4a, and reads the original 2 set on the fixed base while moving in the sub-scanning direction.
The marker detection unit 4 outputs the image signal 1a obtained by reading the markers 3a and 3b. read) and outputs respective control signals 4a.

The image signal processing section 5 binarizes the image signal from the reading section 1 and encodes it to shorten the transmission time, and supplies it to the communication control section 6.

The communication control unit 6 modulates and outputs the image signal output from the image signal processing unit 5 to which line density information according to the control signal 4a from the marker detection unit 4 is added to the facsimile receiving side via the line 7. At the time of reception, the received image signal is demodulated from the line 7 and output to the reception recording section 8.

The reception recording section 8 prints the image signal decoded according to the linear density information added to the image signal from the communication control section 6 on a recording paper and outputs it.

Next, the operation will be explained. The person handling the manuscript to be sent 2
A thin portion 2a and a coarse portion 2b of the calligraphy drawn in are determined, and a marker 3a and a marker 3b are set at the beginning in the sub-scanning direction 1b. When communication starts, the reading unit 1 performs sub-scanning 1.
It moves in the direction of the arrow b and reads the marker 3a (a marker with fine writing in the main scanning direction) and outputs an image signal 1a. The marker detection unit 4 identifies the signal of the marker 3a included in the image signal 1a using a preset reference value and outputs a control signal 4a instructing reading at a thin line density.

The reading unit 1 lowers the main scanning and sub-scanning speeds according to the thin line density instruction of the input control signal 4a, and reads 2a of the original 2.
When the marker 3I] (a thick mark in the main scanning direction) is read, a control system that instructs reading with a coarse line density from the marker detection unit 4 (the main scanning and sub-scanning speeds are increased by the wholesale signal 4a) is read. The image signal 1a obtained by reading the portion 2b of the original 2 is output.The communication control section 6 adds information indicating fine and coarse line densities from the marker detection section 4 to the image signal and transmits it to the line 7. The reception recording unit 8 controls the main scanning and sub-scanning speeds in accordance with information indicating the fine and coarse line densities detected from the image signal received from the line 7 and performs reception recording.

〔Effect of the invention〕

As explained above, the present invention makes it possible to obtain communication time with the playback/recording side that matches the transmitted original by varying the reading speed depending on the fineness or coarseness of the calligraphy and drawings in the original using the set markers. effective.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Reading part, 2... Original, 3a, 3b... Marker, 4... Marker detection part, 5... Image signal processing part, 6
. . . Communication control section, . . . Line, 8. . . Reception recording section.

Claims (1)

[Claims] a reading means for switching the reading linear density at an arbitrary sub-scanning position of the document; a means for adding and transmitting linear density information corresponding to the reading linear density to the image signal; A facsimile apparatus comprising a receiving means for printing and recording the image signal.