JP3185483B2 - Recording device with automatic reduction function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus for recording received data on cut sheets, and more particularly to a recording apparatus having an automatic reduction function.

[0002]

2. Description of the Related Art In a recording apparatus for recording received data on a cut sheet of a fixed size, a difference in the fixed size of each country (legal size, A4 size, etc.), skew of a transmission original, addition of a header to the original, etc. Therefore, the length of one page of the received data may be slightly larger than the size of the cut sheet set in the apparatus. In such a case, dividing the data and recording it on two sheets of cut paper is a waste of cut paper. Therefore, a reduction ratio is calculated according to the size of the cut paper and the length of the received data, and the reduction is calculated. Some have an automatic reduction function of recording received data on cut sheets at a specified rate.

In such a recording apparatus having an automatic reduction function, in order to calculate a reduction ratio when recording received data, it is necessary to know the number of lines for one page of received data. The recording operation cannot be started until the reception ends. In addition, the speed of a series of recording operations such as paper feeding, recording, and discharging is slower than the processing speed of storing the received data in the receiving buffer. The capacity may be insufficient. For this reason, if the reception buffer cannot be sufficiently secured, the reduction function is stopped, and the received data is recorded on cut paper without being reduced,
An error message was displayed and the receiving operation stopped.

[0004]

However, when the received data is recorded on a cut sheet without being reduced because the receiving buffer cannot be sufficiently secured, when the length of the received data does not exceed the cut sheet size. There is no problem because all data is recorded on the cut sheet, but if the length of the received data exceeds the cut sheet size, data up to the number of lines that can be recorded on the cut sheet is recorded and the remaining data Will be ignored. Further, if an error is displayed and the reception processing operation is stopped every time the reception buffer cannot be sufficiently secured, the reception efficiency is reduced.

The present invention solves the above-mentioned problem. When the memory for storing received data cannot be sufficiently secured, the automatic reduction function is stopped and data is recorded at a predetermined reduction rate. Accordingly, an object of the present invention is to provide a recording apparatus having an automatic reduction function capable of reliably recording received data without wasting cut sheets and enabling efficient reception.

[0006]

In order to achieve the above object, the present invention calculates a reduction ratio according to the size of a cut sheet and the length of received data, and uses the reduced ratio to convert the data into a cut sheet. In a recording apparatus having an automatic reduction function for recording, a storage unit for temporarily storing the data before recording, and a recording unit for recording the data stored in the storage unit on a cut sheet at a predetermined reduction ratio. A control unit that stops the automatic reduction function when the free space of the storage unit becomes smaller than a predetermined amount and records the data at a predetermined reduction ratio. It is a thing.

[0007]

According to the above arrangement, the storage unit temporarily stores the received data, and the recording unit stores the received data at a reduction ratio calculated according to the length of the received data and the size of the cut sheet. Record on cut paper. Then, when the free space of the storage unit becomes smaller than the preset capacity,
The control unit stops the automatic reduction function and controls the recording unit to record data at a predetermined reduction ratio.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the control unit of the facsimile apparatus according to the present embodiment. CPU1
Controls each part of the facsimile machine according to the control program. The CPU 1 has a reception buffer 2 for temporarily storing received data, a development memory 3 for storing a recording pattern for one page, a storage capacity value and data set for comparison with the free space of the reception buffer 2. Memory 4, variable RAM 5, and R
OM6 is connected. The ROM 6 stores a control program for controlling the entire facsimile machine.

The CPU 1 also includes an operation panel 9 as an input device, an image reading device 10 for reading image data of a document, a recording device 11 for recording received image data on cut paper, and a compression code for transmitting image data. An encoding / decoding control unit 12 for performing the encoding process and decoding the compressed image data at the time of reception is connected. Further, a communication control unit 13 is connected to the CPU 1. The communication control unit 13 exchanges a facsimile control signal with the destination facsimile machine and executes a control procedure. This communication control unit 13
Is a telephone line 16 via a modem 14 and a network control unit 15.
It is connected to the. When transmitting, the modem 14 modulates the transmission signal into a form suitable for transmission over the telephone line 16,
The modulation signal transmitted from the telephone line 16 is demodulated. The network control unit 15 automatically calls a communication partner, detects a call signal from the calling terminal through the telephone line 16, and automatically receives a call.

The reception processing operation of the facsimile apparatus thus configured will be described with reference to FIG. Since the reception data is temporarily stored in the reception buffer 2, it is checked whether data is stored in the reception buffer 2 (S1).
When the data is stored in the reception buffer 2, it is checked whether or not the free space of the reception buffer 2 is larger than a predetermined capacity (S2). The variable m indicating the number of lines for one page of the set data is set to 1 (S3). Then, one line of data is taken out from the reception buffer 2 and subjected to a decoding process (S4), and the decoded data is developed into a recording pattern and stored in the development memory 3 (S4).
5). When the development of one line of data is completed, it is checked whether a page end is detected (S6). If no page end is detected, 1 is added to the variable m (S7), and S4 is continued until a page end is detected. To S7 are repeated.

In S6, when the page end is detected, that is, when the development of the received data for one page is completed, the reduction ratio is obtained by dividing the number of lines recordable on the cut sheet by the number m of lines of the received data. The calculation is performed (S8), and the recording pattern stored in the development memory 3 is recorded with the reduction ratio while performing the thinning process (S9). When the recording of the data for one page is completed, the cut sheet is discharged (S
10) Returning to S1, when there is no more data in the reception buffer 2, the reception processing operation ends.

In step S2, if the free space of the receiving buffer 2 is not larger than the predetermined capacity, that is, if the receiving buffer 2 cannot be sufficiently secured, the size of the cut sheet is set according to the cut sheet size set in the apparatus. A predetermined reduction ratio is set (S11). For example, if a letter size cut sheet is set, the reduction rate is set to 90%, and if a legal size cut sheet is set, the reduction rate is set to 100% (actual size). The cut sheet size is determined based on the size of the cassette in which the cut sheet is stored. When the reduction ratio is set, one line of data is fetched from the reception buffer 2 and decoded (S1).
2) The decoded data is developed into a recording pattern and stored in the development memory 3 (S13). When one line of data is stored in the development memory 3, the data is recorded at a set reduction rate while thinning the data (S
14). When the recording for one line is completed, it is checked whether a page end is detected (S15).
Steps S2 to S15 are repeated, and when a page end is detected, the process proceeds to S10.

As described above, when the free space of the reception buffer 2 becomes smaller than the preset capacity, the automatic reduction function is stopped, and the reduction rate set according to the cut sheet size set in the apparatus is used. Since the reception data is recorded, if the free space of the reception buffer 2 cannot be sufficiently secured, the reception of the data of one page is completed without confirming the number of lines of one page of the reception data. You can start recording without waiting to do so. As a result, without wasting cut paper,
The received data can be reliably recorded. Also,
Since the amount of accumulation in the reception buffer 2 is reduced, it is not necessary to stop the reception processing operation halfway due to the full capacity of the reception buffer 2 and efficient reception becomes possible.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in this embodiment, when the receiving buffer 2 cannot be sufficiently secured, the reduction ratio is set according to the cassette size set in the apparatus. However, the user can set an arbitrary reduction ratio. Alternatively, the previous automatic reduction ratio may be set.

[0015]

As described above, according to the present invention, when the free space of the storage unit becomes smaller than the preset capacity, the automatic reduction function is stopped, and the received data is recorded at the preset reduction rate. Therefore, if the free space of the storage unit cannot be sufficiently secured, it is necessary to check the number of lines of one page of the received data, that is, wait until the reception of the data of one page is completed. Without it, recording can be started. Thus, the received data can be reliably recorded without wasting cut sheets. Further, since the storage amount of the storage unit is reduced, it is not necessary to stop the reception processing operation halfway due to the capacity of the storage unit being full, and efficient reception becomes possible.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a control unit of a facsimile apparatus according to one embodiment of the present invention.

FIG. 2 is a flowchart illustrating a reception processing operation of the facsimile apparatus according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU 2 Receive buffer 3 Expansion memory 4 Setting memory 6 ROM 11 Recording device

Claims (1)

(57) [Claims] 1. A recording apparatus having an automatic reduction function for calculating a reduction ratio according to the size of a cut sheet and the length of received data, and recording the data on the cut sheet at the reduction ratio. A storage unit for temporarily storing data before recording; a recording unit for recording data stored in the storage unit on a cut sheet at a predetermined reduction ratio; and a free space of the storage unit being larger than a preset capacity. A recording unit having an automatic reduction function, comprising: a control unit configured to stop the automatic reduction function when the number decreases, and to control to record the data at a predetermined reduction ratio.