JPH07107232A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To prevent an image from being cut and to inform an abnormal state to a user by detecting the carrying abnormality of roll paper by comparing the length of the roll paper with requested length decided in advance after the length of the roll paper is measured when the roll paper is carried. CONSTITUTION:A plotter part 2 rotates a roller 22 fed based on the length of the roll paper of one page, and stops the roller 22 after the lapse of prescribed time. Thence, a cutter 24 cuts the roll paper fed according to an instruction outputted from a roll paper supply part 9, and the plotter part 2 receives the requested length Ly from the paper supply part 9. Thence, the plotter part 2 receives measured length Lj from the paper supply part 9, and judges whether the measured length Lj is larger than or equal to the requested length Ly. Consequently, when it is judged that the measured length Lj is smaller than the requested length Ly, it is judged whether or not difference DELTAL is larger than a short time difference boundary value 31. When the difference DELTAL is smaller than the boundary value 31, image information stored in an image memory part 5 is read out, and it is decoded to image data by an encoder/ decoder part 6, then, it is recorded on the plotter part 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine, and more particularly to a facsimile machine for recording a received document on roll paper.

[0002]

2. Description of the Related Art Conventionally, as a facsimile apparatus, for example, a "facsimile apparatus" described in Japanese Patent Application Laid-Open No. 1-218264 has been proposed. This product stores the image signal in the memory and saves it even if it detects that the remaining amount of the roll paper is insufficient for recording the image signal while receiving the image signal of the other facsimile machine. By this, there is an advantage that it is possible to eliminate the need for measures for retransmission.

[0003]

However, the conventional "facsimile apparatus" does not take into consideration the abrasion of the rollers for carrying the roll paper, so that the image signals received by the carrying rollers are properly processed. It is not possible to determine whether or not to roll out the roll paper length to be recorded in the above, and in some cases the received image signal is not recorded normally, but the image signal is not stored in the memory. there were. Also, if the image signals for one page are stored in the memory while they are being received, even if a new roll paper is replaced and printing is restarted, only the remaining portion of one page can be printed, There was a problem of sticking the roll paper on which the signal was printed.

Therefore, according to the present invention, when the roll paper is conveyed, the length of the roll paper is actually measured, and then the conveyance error of the roll paper is detected by comparing the length with the predetermined reference length. It is an object of the present invention to provide a facsimile device that can prevent image breakage and notify a user of an abnormal state.

[0005]

The invention according to claim 1 is
In order to solve the above problems, a communication control unit that receives image information transmitted from a partner facsimile machine via a communication line, and a line number for each page based on the image information received by the communication control unit are calculated. A line counting unit for counting, a line number storage unit for storing the number of lines counted by the line counting unit, an image information memory unit for storing the image information received by the communication control unit, and the image information. A decoding unit that decodes the image information stored in the memory unit into image data, and a cutting unit that calculates in advance a cutting set length for cutting the roll paper based on the number of lines stored in the line number storage unit A set length calculation unit, a roll paper cutting unit that cuts roll paper based on the cut set length calculated by the cut setting length calculation unit, and a roll paper that conveys the roll paper cut by the roll paper cutting unit Transport And a roll paper length measuring unit that measures the length of the roll paper when the roll paper is transported by the roll paper transport unit, and the roll paper length measured by the roll paper length measuring unit is And a printing unit for thinning out the image data decoded by the decoding unit for each predetermined number of lines and printing when the length is shorter than the cutting setting length calculated by the cutting setting length calculation unit. It is characterized by

According to a second aspect of the present invention, in order to solve the above problem, in the facsimile apparatus according to the first aspect, the short time difference boundary is used to determine whether the roll paper cut by the roll paper cutting unit is valid or invalid. A boundary value storage unit that stores in advance a value and a long-time difference boundary value, and the cutting set length previously calculated by the cutting set length calculation unit from the length of the roll paper measured by the roll paper length measurement unit The first display that indicates that the roll paper is abnormal when the difference value is the length obtained by subtracting, and when the difference value is larger than the short time difference boundary value stored in the boundary value recording unit. And a second display unit for displaying that the roll paper transport unit has an abnormality when the difference value is larger than the long-time difference boundary value stored in the boundary value recording unit. It is characterized by that.

According to a third aspect of the present invention, in order to solve the above problems, in the facsimile apparatus according to the second aspect, an input unit for inputting the short time difference boundary value and the long time difference boundary value, and the input unit. And a boundary value recording unit for storing the short time difference boundary value and the long time difference boundary value input by the above.

[0008]

According to the first aspect of the invention, the communication control section receives the image information transmitted from the facsimile apparatus of the other party through the communication line, and the line counting section receives the line information for each page based on the received image information. The number of lines is counted and the number of lines is stored in the line number storage unit. Next, the image information received by the communication control unit is stored in the image information memory unit, and the decoding unit decodes the image information stored in the image information memory unit into image data.
Next, the cut set length calculation unit calculates in advance the cut set length for cutting the roll paper based on the number of lines stored in the line number storage unit, and the roll paper cutting unit calculates the roll paper based on the cut set length. Disconnect. Next, the roll paper transport unit transports the roll paper cut by the roll paper cutting unit, and the roll paper length measuring unit measures the length of the roll paper when the roll paper transport unit transports the roll paper. Next, when the length of the roll paper measured by the roll paper length measuring unit is shorter than the cutting set length previously calculated by the cutting set length calculation unit,
The image data decoded by the decoding unit is thinned out every predetermined number of lines and then printed by the printing unit.

According to a second aspect of the present invention, in the facsimile apparatus according to the first aspect, since the boundary value storage unit determines whether the roll paper cut by the roll paper cutting unit is valid or invalid, the short time difference boundary value and the long time difference boundary value The time difference boundary value is stored in advance. The length obtained by subtracting the cut set length calculated by the cut set length calculation unit from the roll paper length measured by the roll paper length measurement unit is set as the difference value, and this difference value is stored in the boundary value recording unit. When it is larger than the short time difference boundary value, the fact that the roll paper is abnormal is displayed on the display unit.

When the difference value is larger than the long time difference boundary value stored in the boundary value recording section, the display of the abnormality in the roll paper conveying section is displayed. According to a third aspect of the present invention, in the facsimile apparatus according to the second aspect, the short time difference boundary value and the long time difference boundary value are input to the input unit, and the short time difference boundary value and the long time difference boundary value are used as the boundary value. Store in the recording unit.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. First, the system configuration of the facsimile will be described. FIG. 1 is a system configuration diagram of a facsimile apparatus according to an embodiment of the present invention. As shown in FIG. 1, in the facsimile apparatus 100, the scanner unit 1 reads out image data of a predetermined resolution from a document image. Plotter 2
Physically records the image data on the roll paper. The system control unit 3 includes a CPU, a ROM, a RAM, and the like, controls each unit, and realizes a predetermined operation of the facsimile apparatus. The system memory unit 4 stores a reception file including an operation file and a page file, and has a timer equipped with a battery indicating the current time. The image information memory unit 5 accumulates the image data of the document read by the scanner 1, and at the same time, the communication control unit 8
The encoded image information received by is accumulated. The encoding / decoding unit 6 encodes the image data to be transmitted into image information and decodes the received image information into image data. The operation display unit 7 displays operation guidance, various abnormality messages, and the like, and performs various operations for the facsimile apparatus to execute predetermined transmission / reception processing and copy functions according to the guidance. The communication control unit 8 complements the PSTN line, transmits a selection signal as a destination facsimile number based on the communication protocol of G3 facsimile, performs a predetermined calling / receiving operation by detecting an incoming call, etc., and is received. Image information is received. The roll paper feeding unit 9 is a CPU,
The control unit includes a ROM, a RAM, and the like, and a mechanical unit that cuts the roll paper and then conveys it to the plotter unit 2.

The encoding / decoding section 6 constitutes a line counting section, and counts the number of lines for each page based on the image information received by the communication control section. The system memory unit 4 constitutes a line number storage unit and stores the number of lines counted by the line counting unit. The image information memory unit 5 stores the image information received by the communication control unit. The encoding / decoding unit 6 constitutes a decoding unit and decodes the image information stored in the image information memory unit 5 into image data. The system control unit 3 constitutes a cut set length calculation unit, and calculates in advance a cut set length for cutting the roll paper based on the number of lines stored in the line number storage unit. The roll paper feeder 9
A roll paper cutting unit is configured to cut the roll paper based on the cut set length calculated by the cut set length calculation unit, and
The length of the roll paper when the roll paper transport unit configures the roll paper cut by the roll paper cutting unit and also configures the roll paper length measurement unit, and the roll paper is transported by the roll paper transport unit. To measure. The plotter 2 constitutes a printing unit, and when the length of the roll paper measured by the roll paper length measuring unit is shorter than the cut set length calculated by the cut set length calculation unit in advance, the plotter 2 uses the decoding unit. The decoded image data is thinned out every predetermined number of lines and then printed. The system memory unit 4 constitutes a boundary value storage unit, and stores the short time difference boundary value and the long time difference boundary value in advance in order to determine whether the roll paper cut by the roll paper cutting unit is valid or invalid.

Next, a protocol according to the first to third embodiments shown in FIG. 2 will be described. The partner facsimile transmission terminal (TX) transmits a ringing tone CNG signal to the facsimile reception terminal (RX) via the PSTN line to make a call. The receiving terminal transmits the called terminal identification signal CED after detecting the CNG signal, and then the non-standard capability identification signal N
The SF or the digital identification signal DIS is transmitted. In response to this, the transmitting terminal transmits the non-standard function setting signal NSS or the digital command signal DCS. Next, the transmission terminal starts the training check TCF, and when receiving the reception preparation confirmation signal CFR from the reception terminal, transmits the document image PIX. If there is no original image to be transmitted, the transmitting terminal transmits the procedure end signal EOP. When the message confirmation signal MCF is received from the receiving terminal,
The transmitting terminal transmits the disconnection command signal DCN and ends the communication.

Next, the structure of the received file according to the first to third embodiments shown in FIG. 3 will be described. The encoded image information received by the communication control unit 8 is stored in the image information memory unit 5. At this time, the system control unit 3 creates a reception file as shown in FIG. 3 and stores it in the system memory unit 4.
The reception file is composed of an operation file and a page file.

As shown in FIG. 3, the operation file includes an operation type, an operation start time, the total number of pages, the number of output (transmitted) pages, and the top page file address. The operation type stores the transmission state / reception state of the facsimile device. As the operation start time, the time when the facsimile apparatus enters the transmission state / reception state is stored. The total page number stores the total page number of the received document information. The number of output (transmitted) pages stores the number of processed pages at the present time when print output processing or transmission output processing has already been performed. The top page file address indicates the top address of the page file stored in the system memory unit 4.

Next, the page file is composed of line density, document width, coding mode, total number of blocks, next page file address, number of lines and block address. The linear density indicates the density of the main and sub scanning lines, for example, 8 ×
Memorize 3.75 lines / mm. The document width indicates the size of the document and stores, for example, A4, B4 and the like. The encoding mode indicates a method of encoding the document information, for example, MH, M
Store R and MMR etc. The total number of blocks is ECM
Store the number of blocks during communication. The next page file address stores the file address of the next page. The number of lines stores the count value of the line end signal EOL. E
In the case of CM communication, the count value of the number of lines is stored after decoding the received data. The block address is ECM
The address of the image information memory unit 5 storing the block at the time of communication is stored.

Next, the mechanism of the roll paper feeding unit according to the first to third embodiments shown in FIG. 4 will be described. The roll paper 21 is roll paper rolled to record image information. The feeding roller 22 feeds the roll paper 21 at a specific speed. The roll paper end sensor 23 applies light to the paper surface of the rolled-out roll paper, and detects a mark indicating the end of the rolled-up roll paper based on the reflected light. Cutter 24
Cuts the roll paper fed according to the instruction output by the roll paper feeding unit 9. The roll paper length measurement sensor 25
In order to measure the passage time of the roll paper cut by the cutter 24, light is applied to the paper surface and the reflected light is notified to the roll paper feeding unit 9. The transport roller 26 sandwiches one end of the rolled-out roll paper. The guide plate 27 plays a role of slackening the roll paper when the roll paper is longer than the length from the feeding roller 22 to the transport roller 26. The paper discharge roller 28 conveys the roll paper toward the plotter unit 2.

Here, a method of calculating the roll paper length will be described. First, the required length Ly of the roll paper requested by the plotter unit 2 to the roll paper feeding unit 9 is the rotation speed Wk [turns / sec] of the feeding roller 22 and the roller circumference L of the feeding roller 22.
k [mm], rotation time Tk [se of the feeding roller 22
c]. The required length Ly of the roll paper is Ly = Wk × Lk × Tk [mm].

Next, the measured length Lj of the roll paper measured by the roll paper feeding unit 9 is determined by the rotation speed Wh of the transport roller 26 [rotation / time].
sec], the roller circumference Lh [mm] of the transport roller 26, and the transit time Th [sec] of the transport roller 26. The measured length Lj of the roll paper is Lj = Wh × Lh × Th [mm].

The measured length Lj of the roll paper measured by the roll paper feeding unit 9 is notified to the plotter unit 2. By the way, the measured length Lj of the roll paper measured by the roll paper feed unit 9 and the required length Ly of the roll paper requested by the plotter unit 2 to the roll paper feed unit 9
And the difference ΔL is ΔL = Lj−Ly [mm].

Next, FIG. 5 shows boundary value data stored inside the system memory unit according to the first to third embodiments. As shown in FIG. 5, the roll paper length boundary value data includes a short time difference boundary value 31 and a long time difference boundary value 32 stored inside the system memory unit 4. The operator operates the operation display unit 7 so that the short-term difference boundary value 3
The boundary value data stored in the system memory unit can be changed by inputting 1 and the long-time difference boundary value 32.

Next, a display example of the operation display unit according to the second embodiment shown in FIG. 6 will be described. The facsimile device 100 is
In the case of waiting, the display example A is displayed as a normal display. In the display example A, “Tsushindekimasu” indicates that communication is possible, “12:00” indicates the current time of the timer, and “100%” indicates the memory capacity that can be currently stored in the image information memory unit 5 as a percentage. In display example B,
"Kidashiri roller error" indicates that the feeding roller 22 of the roll paper feeding unit 9 is abnormal, and "60%" indicates the remaining memory capacity that can be currently stored in the image information memory unit 5 as a percentage. In the display example C, “HAND WASH ROLL” indicates that the transport roller 26 of the roll paper feeding unit 9 is abnormal.

Next, the operation will be described based on the flow chart according to the first to third embodiments shown in FIG. First, at the time of reception, the communication control unit 8 receives the encoded image information and stores the received encoded image information in the image information memory unit 5. At this time, the system control unit 3 creates a reception file including an operation file and a page file as shown in FIG. 3, and stores the reception file in the system memory unit 4.

After the reception, the system control unit 3 calculates the length of the roll paper for one page based on the number of lines and the line density stored in the system memory unit 4, and the plotter unit 2
To notify. The plotter unit 2 rotates the feeding roller 22 based on the length of the roll paper for one page, and stops the feeding roller 22 after a desired time. Next, the cutter 24
Cuts the roll paper fed out according to the instruction output by the roll paper feed unit 9, and the plotter unit 2 receives the required length Ly from the roll paper feed unit 9.

Next, the plotter unit 2 receives the measured length Lj from the roll paper feeding unit 9 (process S1) and determines whether the measured length Lj is greater than or equal to the required length Ly (process S2). When the measured length Lj is smaller than the required length Ly, it is determined whether the difference ΔL is equal to or more than the short time difference boundary value 31 shown in FIG. 5 (process S3). When the difference ΔL is not equal to or more than the short-time difference boundary value 31, the image information stored in the image information memory unit 5 is read, the encoding / decoding unit 6 decodes the image information into image data, and the image data is stored on the roll paper. Image data is thinned out every predetermined number of lines, and then the plotter unit 2
Is recorded (step S4). Next, the image information stored in the image information memory unit 5 is erased, and the received file stored in the system memory unit 4 is erased (process S5).

When the measured length Lj is greater than or equal to the required length Ly, it is determined whether the difference ΔL is greater than or equal to the long time difference boundary value 32 shown in FIG. 5 (process S6). When the difference ΔL is not greater than or equal to the long-time difference boundary value 32, the image information stored in the image information memory unit 5 is read, the image information is decoded into image data by the encoding / decoding unit 6, and the image data is converted into image data. Data is recorded in the plotter unit 2 (process S7). Then, the process proceeds to S5.

In step S6, the difference ΔL is the long time difference boundary value 3
When the number is 2 or more, the recording of the plotter unit 2 is interrupted and the display example C as shown in FIG. 6 is displayed on the operation display unit 7 (process S9). In the process S3, the difference ΔL is the short time difference boundary value 31.
In the above case, recording of the plotter unit 2 is interrupted and
A display example B as shown in is displayed on the operation display unit 7 (process S8).

The operation and effect of the invention according to claim 1 will be described below. The communication control unit receives the image information transmitted from the partner facsimile machine via the communication line, and the line counting unit counts the number of lines for each page based on the received image information. Store in the storage unit. Next, the image information received by the communication control unit is stored in the image information memory unit, and the decoding unit decodes the image information stored in the image information memory unit into image data. Next, the cut set length calculation unit calculates in advance the cut set length for cutting the roll paper based on the number of lines stored in the line number storage unit, and the roll paper cutting unit calculates the roll paper based on the cut set length. Disconnect.
Next, the roll paper transport unit transports the roll paper cut by the roll paper cutting unit, and the roll paper length measuring unit measures the length of the roll paper when the roll paper transport unit transports the roll paper. Next, if the length of the roll paper measured by the roll paper length measurement unit is shorter than the cut set length calculated by the cut set length calculation unit in advance, the image data decoded by the decoding unit is Printing is performed by the printing unit after thinning out every predetermined number of lines.

Therefore, when the cut roll paper is not unnecessarily short, the image data is thinned out and recorded, so that an unnecessary reprinting operation can be omitted and the convenience is improved. You can Hereinafter, the function and effect of the invention according to claim 2 will be described. The boundary value storage unit stores in advance the short time difference boundary value and the long time difference boundary value in order to determine whether the roll paper cut by the roll paper cutting unit is valid or invalid. The length obtained by subtracting the cut set length calculated by the cut set length calculation unit from the roll paper length measured by the roll paper length measurement unit is set as the difference value, and this difference value is stored in the boundary value recording unit. When it is larger than the short time difference boundary value, the fact that the roll paper is abnormal is displayed on the display unit.

When this difference value is larger than the long-time difference boundary value stored in the boundary value recording section, the fact that the roll paper conveying section has an abnormality is displayed on the display section. Therefore, the operator can detect the abnormality of the roll paper or the abnormality of the roll paper transport unit, and the action based on the displayed message can be taken, and the convenience can be improved.

The operation and effect of the invention according to claim 3 will be described below. The short time difference boundary value and the long time difference boundary value are input to the input section, and the short time difference boundary value and the long time difference boundary value are stored in the boundary value recording section. It is possible to improve the sex.

[0032]

According to the present invention, when the roll paper is conveyed, the length of the roll paper is measured, and then the conveyance abnormality of the roll paper is detected by comparing with the predetermined reference length. It is possible to prevent the above and notify the user of the abnormal condition.

[Brief description of drawings]

FIG. 1 is a diagram showing a system configuration of a facsimile apparatus according to first to third embodiments of the present invention.

FIG. 2 is a diagram showing a communication protocol of the facsimile apparatus according to the first to third embodiments of the present invention.

FIG. 3 is a diagram showing a received file of the facsimile apparatus according to the first to third embodiments of the present invention.

FIG. 4 is a diagram showing a roll paper feeding unit of the facsimile apparatus according to the first to third embodiments of the present invention.

FIG. 5 is a diagram showing boundary value data stored inside the system memory unit of the facsimile apparatus according to the first to third embodiments of the present invention.

FIG. 6 is a diagram showing a display example of an operation display unit of the facsimile apparatus according to the first to third embodiments of the present invention.

FIG. 7 is a diagram showing a flowchart of an operation according to the first to third embodiments of the present invention.

[Explanation of symbols]

 1 Scanner Section 2 Plotter Section 3 System Control Section 4 System Memory Section 5 Image Information Memory Section 6 Encoding / Decoding Section 7 Operation Display Section 8 Communication Control Section 9 Roll Paper Feed Section 21 Roll Paper 22 Rolling Roller 23 Roll Paper End Sensor 24 Cutter 25 Roll paper length measurement sensor 26 Conveying roller 27 Guide plate 28 Paper ejection roller 31 Short time difference boundary value 32 Long time difference boundary value 100 Facsimile machine

Claims (3)

[Claims] 1. A communication control unit for receiving image information transmitted from a facsimile machine of the other party via a communication line, and counting the number of lines for each page based on the image information received by the communication control unit. A line counting unit, a line number storage unit that stores the number of lines counted by the line counting unit, an image information memory unit that stores the image information received by the communication control unit, and the image information memory unit A decoding unit that decodes the image information stored in the image data into image data, and a cutting setting length that calculates in advance a cutting setting length for cutting the roll paper based on the number of lines stored in the line number storage unit. A calculation unit, a roll paper cutting unit that cuts roll paper based on the cut setting length calculated by the cut setting length calculation unit, and a roll paper conveying unit that conveys the roll paper cut by the roll paper cutting unit And the law The roll paper length measuring unit that measures the length of the roll paper when the roll paper is conveyed by the paper conveying unit, and the length of the roll paper measured by the roll paper length measuring unit is the cutting set length calculation. And a printing unit that thins out the image data decoded by the decoding unit for each predetermined number of lines and then prints the image data when the cutting length is shorter than the cut setting length calculated by the unit. Facsimile machine. 2. The roll paper length is provided with a boundary value storage unit that stores in advance a short time difference boundary value and a long time difference boundary value for determining validity / invalidity of the roll paper cut by the roll paper cutting unit. The length obtained by subtracting the cutting set length calculated in advance by the cutting set length calculation unit from the length of the roll paper measured by the measuring unit is set as a difference value, and the difference value is stored in the boundary value recording unit. If it is larger than the short time difference boundary value, the first display unit for displaying that the roll paper is abnormal, and the long time difference boundary value stored in the boundary value recording unit. The facsimile apparatus according to claim 1, further comprising: a second display unit that displays that there is an abnormality in the roll paper transport unit when the size is larger. 3. An input unit for inputting the short time difference boundary value and the long time difference boundary value, and a boundary value for storing the short time difference boundary value and the long time difference boundary value input by the input unit. The facsimile apparatus according to claim 2, further comprising a recording unit.