JPH04263573A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To record a picture properly by changing a printing position corresponding to a copy picture or a reception picture at the time of picture output. CONSTITUTION:A timing adjustment part 5 controls the transmission timing of picture data to be transferred to a printing part 4, changing the recording position of the picture to the recording at reception time and at copying time. A picture memory 7 has a capacity storing at least one page of original picture data, and stores the decoded picture data received from the opposite side communication equipment and the picture data read by a reader part 3 at the time of copying. A printer part 4 supplies a page heading signal turned on at the timing of printing the page head line and a line synchronizing signal indicating the printing of each line to a timing adjustment part 5. Then, the control part 1 can adjust the picture printing starting position of a printer part 4 when properly setting the setting value of a line counter. Then, the printing position is changed according to the copy picture or the reception picture at the time of picture output, and the proper picture recording can be performed.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine having a document copying function.

0002

2. Description of the Related Art Conventionally, facsimile machines having, for example, a laser beam printer (hereinafter referred to as LBP) have been known.

By the way, in the LBP, in order to prevent the recording paper from sticking to the fixing device, the image is outputted except for the peripheral portion of the recording paper. For example, Figure 2
When printing the image shown in (a), the image cannot be output to the peripheral area of the recording paper, as shown by diagonal lines in Fig. 2(b), so the image cannot be printed as shown in Fig. 2(c). Output with a shift.

In particular, in a facsimile machine, the sender's abbreviation, telephone number, date, etc. are printed as header information at the leading edge of the received image, so it is necessary to secure this printing space. ), the header information is printed reliably.

[0005]

[Problems to be Solved by the Invention] However, in the above-mentioned conventional technology, images are uniformly shifted and output not only when receiving an image but also when copying an image, so that the image after copying is different from the image before copying. The output will be misaligned with respect to the original.

In particular, when copying a document received by facsimile, the discrepancy at the time of reception is further magnified by copying, resulting in an output as shown in FIG. 2(d), which has the disadvantage that it becomes very difficult to see.

SUMMARY OF THE INVENTION An object of the present invention is to provide a facsimile machine that can record images appropriately in response to reception and copying.

[0008]

[Means for Solving the Problems] The present invention provides image output means for outputting an image onto a recording medium, and output position control for changing the output position of the image relative to the recording medium during a receiving operation and during a copying operation. It is characterized by having a means.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an embodiment of the present invention.

[0010] The control unit 1 includes a CPU, ROM, and RAM.
control the entire device.

The operation unit 2 has a numeric keypad and various function keys, through which the operator inputs various instructions, and also has an LCD display and a speaker, and provides various displays and audio outputs to the operator.

[0012] The reader section 3 reads the original using a CCD line sensor or the like, converts the read image into digital information, and outputs the digital information.

The printer section 4 is composed of an LBP, and is configured so that it cannot record an image on the leading edge of the recording paper.

[0014] The timing adjustment section 5 is connected to the printer section 4.
It controls the sending timing of the image data to be sent to the printer, and changes the recording position of the image on the recording paper between the receiving operation and the copying operation.

A communication control unit (CCU) 6 controls the communication operation of image data and the like with the other communication device via the line 8.

The image memory 7 has a capacity to store at least one page of raw image data (data that is not encoded and compressed), and includes image data received from the other party's communication device and decoded, and image data that is stored during copying. It stores image data read by the reader section 3.

FIG. 3 is a circuit diagram showing a configuration for controlling timing during image output.

The printer section 4 supplies a page head signal 4a and a line synchronization signal 4b to the timing adjustment section 5 side.

The page head signal 4a is a signal that is turned on at the timing when the head line of a page is printed, and remains on during the period that the page is being printed.

The line synchronization signal 4b is a signal indicating that each line of the image is being printed, and is in an on state while one line is being printed.

The timing adjustment unit 5 includes a DMA 8 for controlling the transfer of image data, a line counter 9 for obtaining the transfer timing, and a DMA for controlling the line synchronization signal 4b.
It has a buffer 10 that supplies data to A8.

The line counter 9 receives the line synchronization signal 4b.
is input and counted, and the count value is sent to the control unit 1.
When the value set by (the number of mask lines described later) is reached, the buffer 10 is turned on and the line synchronization signal 4b is sent to DM.
Supply to A8's DMA request port. That is, the buffer 10 cuts off the line synchronization signal 4b in the off state.

The DMA 8 receives the address and transfer amount of the image memory 7 from the control unit 1, and supplies the image data 7a of the image memory 7 to the printer unit 4. The line synchronization signal 4b is input to the DMA request port. The image data 7a is supplied to the printer section 4 based on the timing.

[0024] Even after the line synchronization signal 4b is input to the DMA request port and printing is started, a blank page remains as long as the image data 7a is not sent to the printer unit 4 based on the address from the control unit 1. It will be output as is.

Therefore, by appropriately setting the set value of the line counter 9, the control section 1 can control the printer section 4.
The image printing start position can be adjusted.

FIG. 4 is a flowchart showing the operation at the time of image output in this embodiment.

When an image output request is made, first, it is determined whether the image to be output is a copy image or a received image (S1).

If the image is a copy image, the number of mask lines and the number of invalid lines are set in S2.

The number of mask lines here refers to the number of lines that are not printed on the top edge of the recording paper. This value is
determined based on the performance of

The number of invalid lines indicates the number of lines to be deleted from the top of the page of the image data in the image memory 7, and based on this number of invalid lines, the top address at the time of data transfer by the DMA 8 is moved down.

In the case of the above-mentioned copy image, since it is desired to print the output image in the same position as the copy original, normally,
The number of mask lines and the number of invalid lines are the same value. As a result, the amount of blank space from the top of the page in the copy document, that is, the amount of blank space from the top of the page in the image data in the image memory 7, is output as is as the top margin of the recording paper.

In the case of a received image, the number of mask lines and the number of invalid lines are set in S3. In the case of this received image, the number of mask lines is the same as in the case of copying, but
The number of invalid lines is set to 0 to prevent data loss in the header portion.

Next, the start address of the valid line is determined based on the number of invalid lines determined in S2 or S3. This can be calculated using the following formula.

[0034] Valid line start address = (image memory page start address) - {(number of data in 1 line)
x (number of invalid lines)} Then, the start address of this valid line is set in the DMA 8 as the transfer source address. In addition, DM uses the total number of data on the valid line as the transfer amount.
Set it to A8 (S4).

Next, wait for the page head signal 4a to be output from the printer section 4 (S5), and when this output is received, the number of mask lines is set in the line counter 9 (S6).
), each time the line synchronization signal 4b is received (S7), the line counter 9 is decremented (S8).

When the value of the line counter 9 becomes 0 (S9), the buffer 10 is turned on, the DMA 8 is activated, and the transfer of the image data 7a is started from the above-mentioned top address (S10).

[0037] In the above embodiment, the hardware can be realized by using the same conventional configuration and only by changing the program, so it can be easily implemented without increasing the manufacturing cost.

[0038]

[Effects of the Invention] According to the present invention, when outputting an image, by changing the print position depending on whether it is a copy image or a received image, an appropriate image can be recorded.For example, when copies of copies are repeatedly made. However, good output conditions can be obtained without shifting the recording position.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a schematic diagram illustrating an image output position that changes depending on the type of output processing in a facsimile device.

FIG. 3 is a circuit diagram showing a configuration for performing timing control during image output in the above embodiment.

FIG. 4 is a flowchart showing the operation at the time of image output in the above embodiment.

[Explanation of symbols]

1...control unit, 2...operation unit, 3...Leader part, 4...Printer section, 5...timing adjustment section, 6...Communication control unit, 7... Image memory.

Claims (1)

[Claims] 1. An image outputting means for outputting an image onto a recording medium; and an output position control means for changing an output position of the image on the recording medium between a receiving operation and a copying operation. facsimile machine.