# Patent

## Title
Image recording apparatus having copy mode and facsimile mode, and transmission method using the same

## Abstract

An image recording apparatus according the present invention includes a copy section for copying an original, a transmission section for transmitting the original via a telephone line, an input section for inputting the number of sheets to be copied and a destination telephone number, a determination section for determining a desired mode based on the input numerical values, and an execution stop section for stopping the execution of a mode other than the desired mode. In addition, in a transmission method according to the present invention, data input during a copy mode is retained in an image recording apparatus with a facsimile and a copy functions, the mode is switched to a facsimile mode with the input data retained, and the input data is used to execute facsimile transmission.

## Background
This is a continuation of U.S. patent application Ser. No. 09/049,144, filed Mar. 27, 1998 now U.S. Pat. No. 6,137,598, the contents of which are expressly incorporated by reference herein in its entirety.


BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an image recording apparatus with a copy function and a facsimile transmission function as well as a transmission method using this apparatus.
2. Description of the Related Art
In recent years, image recording apparatuses with a copy function and a facsimile transmission function have been spreading. In these image recording apparatuses, the same console panel is used to input data in both copy and facsimile modes. Thus, such an image recording apparatus has a function for switching between the copy mode and the facsimile mode.
In one example of such a mode switching function, when a facsimile transmission number is input in the copy mode, “0”, which is the first digit of the facsimile transmission number, is input to automatically switch the mode, and when the number of sheets to be copied is input in the facsimile mode, an alarm is issued indicating that the entry does not meet the number of digits required for a facsimile transmission number before the mode is switched.
In this mode switching function, in the case that a facsimile transmission number is input in the copy mode, the first digit of the facsimile transmission number may be, for example, “7” instead of “0”, and useless copying is executed during the copy mode without automatically switching to the facsimile mode.
In addition, even if “0” is input to switch from the copy mode to the facsimile mode, the mode is switched to reset the entry of “0” so a new entry starting with “0” need to provide in the facsimile mode.
In addition, in this switching function, when the number of sheets to be copied is input in the facsimile mode and if the operator starts the operation without noticing the alarm display, a call is made with the mistaken transmission number. The operator does not notice that the apparatus is in a different mode until the erroneous call has been actually made, so the above operation is fruitless.
SUMMARY OF THE INVENTION
It is an object of this invention to provide an image recording apparatus and a transmission method using this apparatus that can prevent useless operations even when the operator makes an entry during a mode other than a desired one.
This object is achieved by an image recording apparatus comprising copy means for copying an original; transmission means for transmitting the original via a telephone line; input means for inputting the number of sheets to be copied and a destination telephone number; determination means for determining a desired mode based on the input numerical values; and execution stop means for stopping the execution of a mode other than the desired mode.
Since this configuration stops the execution of a mode other than the desired mode, useless operations caused by the operator's erroneous entries can be prevented. Consequently, the wasteful use of recording paper can be avoided.
The image recording apparatus according to this invention allows the determination means to make determinations using as a threshold value a numerical value smaller than the number of digits in a destination telephone number. In this case, since a number smaller than the number of digits in a telephone number is used as the threshold value, it can be reliably determined whether the operator's entry indicates a sheets number setting for copying or a telephone number for facsimile transmission.
In addition, when a particular entry is made, the image recording apparatus according to this invention retains a value input during a mode other than a desired mode. When the mode is then switched to the desired one, it uses the input value to execute the desired mode. In this case, since the value input during a mode other than the desired mode is retained, the entry made during a mode other than the desired mode prior to switching can be used to execute the desired mode. As a result, the entry made during a mode other than the desired mode can be used as it is, thereby eliminating the need for reentries.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram showing an approximate configuration of an image recording apparatus according to this invention;
FIG. 2 illustrates a mode switching control section in the image recording apparatus according to this invention;
FIG. 3 is a flowchart illustrating an operation of the image recording apparatus according to this invention;
FIG. 4 shows a display section during a copy mode in the image recording apparatus according to this invention; and
FIG. 5 shows the display section during a facsimile mode in the image recording apparatus according to this invention.



DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
An embodiment of this invention is specifically described below with reference to the drawings.
FIG. 1 is a block diagram showing an approximate configuration of an image recording apparatus according to this invention. In the image recording apparatus shown in FIG. 1, a CPU 1 is control section for controlling the entire apparatus. A ROM 2 is a memory in which data required to operate the apparatus is stored. A RAM 3 is a memory in which numerical data, the number of sheets to be copied, and a facsimile destination telephone number input from an operation section are stored. Furthermore, an image memory 4 stores read image data.
A read section 5 reads images from an original and transmits them to the image memory 4 as image data. An image formation section 6 is an unit of irradiating the light to photographic drum to convert the image data into latent images, transferring the latent images to recording paper by using a toner, and fixing the images to recording paper. The image formation section 6 also prints on recording paper facsimile data transferred to a facsimile section 7 via a telephone line.
In addition, a mode switching control section 8 controls switching between a copy mode and a facsimile mode. An operation section 9 comprises an input portion such as ten keys 10 to perform various operational entries. Furthermore, a display section 11 displays numerical data and a mode input from the operation section 9.
Specifically, the mode switching control section 8 is configured as shown in FIG. 2. That is, the mode switching control section 8 is mainly composed of a digits number counting section 21 for counting the number of digits in numerical data input from the operation section 9; a mode switching determination section 22 for determining based on the counted number of digits whether or not to switch a mode; a mode determination section 23 for determining what the current mode is; a mode switching section 24 for switching a mode; a mode execution section 25 for executing a mode; a pose key recognition section 26 for determining whether or not a pose key has been entered; an input data retaining section 27 for retaining input data when the pose key has been input; and an execution stop section 28 for stopping the execution of a mode different from a desired mode when a start key has been entered during the first mode. The digits number counting section 21 and mode switching determination section 22 determine a mode.
In the image recording apparatus of the above configuration, the digits number counting section 21 counts an input value and the mode switching determination section 22 determines whether or not the number of digits in the input value exceeds a threshold value in order to determine whether or not to switch the mode. Furthermore, the mode determination section 23 determines the current mode. Based on these information, if the current mode is different from a desired one, the execution stop section 28 stops the execution of the first mode. This can prevent useless operations caused by the operator's erroneous entries to avoid the wasteful use of recording paper.
For example, to determine whether or not to switch the mode, the digits number counting section 21 counts the number of digits in a destination telephone number and the mode switching determination section 22 uses as a threshold value a numerical value smaller than the number of digits in the destination telephone number. For example, the threshold value for input digits is set at two to allow only two digits to be displayed. The display section in a copy mode, showing that only two digits are displayable, is shown in FIG. 4. Similarly, a display section in a facsimile mode, where the capacity of the display section is set to display a facsimile phone number is shown in FIG. 5. In this case, even if an entry is made three times, only two digits are displayed with only the input order of the digits changed. It can thus be reliably determined whether the operator's entry indicates a sheets number setting for copying or a telephone number for facsimile transmission.
In addition, whether or not a particular entry, that is, an entry of the pose key has been made is determined by the pose key recognition section 26. The input data retaining section 27 then retains a value input during a mode other than the desired mode. When the mode switching section 24 subsequently switches the mode to the desired one, the mode execution section 25 executes the desired mode using the retained input value.
Thus, the entry made during a mode different from the desired mode prior to switching can be used to execute the desired mode. Consequently, the entry made during a mode other than the desired mode can be used as it is, thereby eliminating the need for reentries.
For example, data input during the copy mode is retained, the mode is switched to the facsimile mode with the input data retained, and the input data is then used to carry out facsimile transmission. Thus, even if a facsimile transmission number is mistakenly input during the copy mode, it can be used as it is without reentering that telephone number after the mode is switched. In addition, even if the first digit of the facsimile transmission number is not “0”, a useless copying operation and thus the wasteful use of recording paper can be prevented.
Next, an operation of the image recording apparatus of the above configuration is explained with reference to the flowchart in FIG. 3. In this example, the power has been turned on (standby state), the copy mode has been entered (S1), and the threshold value for input digits is two. The facsimile and copy modes can be switched as required by entering a facsimile key 33 and a copy key 34.
First, the copying of an original is described. With the power turned on, “copy enabled” is displayed in a display section 32 on a console panel 31, as shown in FIG. 4. Then, the process determines whether or not the mode needs to be switched (S2). In this case, the mode does not need to be switched, so the number of sheets to be copied is input using the ten keys 35 (S3). The process then determines whether or not the entry exceeds the threshold value, that is, whether or not it includes three digits or more (S4).
If the entry includes less than three digits, the process determines whether or not a pose key 38 has been entered (S5). If not, then the process determines whether or not a start key 37 has been entered (S6). If so, an input number of sheets are copied (S7).
On the other hand, since two, which is smaller than the number of digits in a facsimile transmission number, is used as the threshold value, if three or more digits are input and the start key 37 is entered during the copy mode, the execution of the mode is stopped to prevent copying and the display section 32 shows “Enter correct number. Press reset key”. In this case, if a reset key 36 is entered, the operator starts all over again (S12).
Next, the transmission of an original is described. Since the apparatus is in the copy mode during the standby state, the facsimile key 33 is entered to switch to the facsimile mode. At this point, the display section 32 shows “transmission enabled” (S8). A destination telephone number is input using the ten keys 35 (S9). Is determined whether or not the start key 37 has been entered (S10). If so, the original is transmitted to the input destination telephone number (S11).
If the operator mistakenly inputs the destination telephone number during the copy mode, it is determined whether or not the pause key 38 has been entered (S5). If so, the mode is switched to the facsimile mode with the input numerical value retained (S8). Those digits of the destination telephone number which are other than those input during the copy mode are input (S9). Is finally determined whether or not the start key 37 has been entered (S10). If so, the original is transmitted to the input destination telephone number (S11).
The above embodiment has been described in conjunction with the case in which the power has been turned on (standby state) with the copy mode entered, this invention is also applicable to the case in which the power is turned on in the facsimile mode.
Although the above embodiment has been described in conjunction with the case in which the threshold value for input digits is two, the input threshold value is not particularly limited, provided that it is smaller than the number of digits in a destination telephone number.
Although the above embodiment has been described in conjunction with the use of the pose key as the particular key entered to retain input data, this invention allows another key to be used to retain input data.
As described above, the image recording apparatus according to this invention stops the execution of a mode other than a desired mode, so useless operations caused by the operator's erroneous entries can be prevented. Consequently, the wasteful use of recording paper can be avoided. Since the image recording apparatus according to this invention uses as the threshold value a numerical value smaller than the number of digits in a telephone number, it can be reliably determined whether the operator's entry indicates a sheets number setting for copying or a telephone number for facsimile transmission.
In addition, the image recording apparatus according to this invention retains a value input during a mode other than a desired mode, so the entry made during a mode other than the desired mode prior to switching can be used to execute the desired mode. As a result, the entry made during a mode other than the desired mode can be used as it is, thereby eliminating the need for reentries.
In addition, according to the present transmission method, the data input during the copy mode is retained, so even if a facsimile transmission number is mistakenly input during the copy mode, it can be used as it is without reentering the telephone number after the mode is switched.

## Claims

1. An image recording apparatus having a copy mode and a facsimile mode, the image recording apparatus comprising:
a panel which has input keys operable to input a numerical value corresponding to at least one of a number of copies in the copy mode and a telephone number of a destination in the facsimile mode;
a display which selectively displays, in a same display area, one of a screen for the copy mode and a screen for the facsimile mode, a display capacity of the screen in the copy mode being smaller than a display capacity of the screen in the facsimile mode; and
a controller which, when the copy mode is set and when the numerical value input by the panel exceeds the display capacity of the screen in the copy mode, switches from the copy mode to the facsimile mode.

2. The image recording apparatus according to claim 1, wherein the display capacity of the screen, when the input numerical value corresponding to the number of copies is displayed, is smaller than the display capacity of the screen, when the input numerical value corresponding to the telephone number of the destination is displayed.

3. The image recording apparatus according to claim 1, wherein the controller is configured to switch to the facsimile mode in response to the numerical value exceeding the display capacity of the screen in the copy mode.

4. The image recording apparatus according to claim 1, said display comprising a single display region having a display capacity that changes in accordance with one of the copy mode and the facsimile mode.

5. The image recording apparatus according to claim 1, wherein input of a number of digits greater than a display capacity of the screen in the copy mode causes a switch to the facsimile mode.

6. A method for controlling an image recording apparatus having a copy mode and a facsimile mode, the method comprising:
inputting a numerical value corresponding to at least one of a number of copies in the copy mode and a telephone number of a destination in the facsimile mode;
selectively displaying, in a same display area, one of a screen for the copy mode and a screen for the facsimile mode, a display capacity of the screen in the copy mode being smaller than a display capacity of the screen in the facsimile mode;
setting the copy mode; and
switching from the copy mode to the facsimile mode, when the input numerical value exceeds the display capacity of the screen in the copy mode.

7. The method for controlling according to claim 6, wherein the switching is in response to the input numerical value exceeding the display capacity of the screen in the copy mode.

8. The method for controlling an image recording apparatus according to claim 6, the selective displaying comprising:
changing a display capacity of a single display region in accordance with one of the copy mode and the facsimile mode.

9. The method for controlling according to claim 6, wherein inputting of a number of digits greater than a display capacity of the screen in the copy mode causes the switching.