JP5125660B2 - Printing apparatus and control program therefor - Google Patents

Description

The present invention reads out document information registered in a document information memory, displays it on a display unit, selects desired document information from the document information displayed on the display unit, prints it on a print tape, and creates a label. The present invention relates to a printing apparatus and its control program.

  A conventional printing apparatus that prints on a printing tape and creates a label registers the printed document information in the document information memory, reads out the document information registered in the document information memory as necessary, and displays it on the display unit. In addition to displaying, the desired document information is selected from the displayed document information and printed on the print tape, or the selected document information is edited and printed on the print tape. It was. As such a printing apparatus, there is one described in Patent Document 1.

JP-A-11-277822

  When the above-described conventional printing apparatus calls document information registered in the document information memory, the document information read from the document information memory is displayed in a list on the display unit, and a desired screen is displayed on the selection screen on which the document information is displayed. The document information is selected. On the document information selection screen, the document information is arranged and displayed in a list in the order of character codes or the order registered in the document information memory.

  For example, as shown in FIG. 4, many pieces of document information to be printed on a print tape for creating a label include date and time information, and document information to be printed on such a label is included therein. Date and time information such as year, month, and day may be updated periodically, and the updated document information may be printed on a print tape to repeatedly create new labels.

  However, in the conventional printing apparatus, the document information is displayed in a list in the order of the character code or the registration order on the selection screen for calling and selecting the document information registered in the document information memory. Therefore, an operation for selecting desired document information is performed. There was a problem of requiring many procedures.

The present invention solves the above-described problems, and document information that is likely to be used regularly when document information registered in a storage unit is called up on a display screen to select desired document information. It is an object of the present invention to provide a printing apparatus capable of easily selecting and printing .

The invention of claim 1 includes a display means for displaying by reading the document information registered in the document information storage means, the document information selection means for selecting a desired document information from the document information displayed on the display means, A printing comprising: document information editing means for editing the document information selected by the document information selection means; and printing means for printing the document information edited by the document information editing means on a print tape to form a label. In the apparatus, first determination means for determining whether or not the document information registered in the document information storage means includes date and time information, and updating of the document information registered in the document information storage means is scheduled. Update scheduled date and time setting means capable of setting date and time, current date and time information acquisition means for acquiring current date and time information, and current date and time information acquired by the current date and time information acquisition means Said second determining means for determining correspondence between time information of the set updating schedule by the update date and time setting means, among the plurality of document information read from the document information storage unit, the first determining means The document information that is determined to contain date / time information and the document information that does not contain date / time information are grouped, and the group of document information that contains date / time information is placed higher than the document information that does not contain date / time information. Document information that is displayed as a list on the display means in a display form different from the document information that is arranged and does not include the date information, and that the first determination means determines that the date information is included. it comprises a display control means for displaying the highest priority document information judged to date information of the update schedule the current date and time information is accommodated by the second determination means And features.

According to a second aspect of the present invention, the display control means is document information for which date and time information is determined to be included by the first determination means, and is updated with current date and time information by the second determination means. When there is a plurality of document information determined to correspond to the scheduled date / time information, the document information whose date / time information to be updated is closer to the current date / time information is more preferentially displayed .

According to a third aspect of the present invention, when the display control unit reads out the document information from the document information storage unit and displays the document information on the display unit, the first determination unit determines that date and time information is included. When there is a plurality of document information, document information including newer date and time information is displayed with higher priority.

According to a fourth aspect of the present invention, when the display control unit reads out the document information from the document information storage unit and displays it on the display unit, the first determination unit determines that the date and time information is included. When there are a plurality of pieces of document information, document information including older date and time information is displayed with higher priority.

The invention of claim 5 is a display unit that reads and displays document information registered in the document information storage unit, a document information selection unit that selects desired document information from the document information displayed on the display unit, A printing comprising: document information editing means for editing the document information selected by the document information selection means; and printing means for printing the document information edited by the document information editing means on a print tape to form a label. A control program for controlling a computer of the apparatus, wherein the computer determines whether the document information registered in the document information storage means includes date and time information; An update date / time setting means capable of setting a date / time at which document information registered in the document information storage means is scheduled, and a current date / time information acquisition for acquiring current date / time information. Means for determining the correspondence between the current date and time information acquired by the current date and time information acquisition means and the date and time information of the update schedule set by the scheduled update date and time setting means, and the document information storage Among the plurality of document information read out from the means, the document information determined by the first determination means to be included in the date information and the document information not including the date information are grouped to include the date information. A group of document information to be arranged higher than document information not including date and time information, and causing the display means to display a list in a display form different from the document information not including date and time information, and the first determination means The document information is determined to include date / time information by the second determination unit, and the current date / time information corresponds to the date / time information to be updated by the second determination unit. The document information cross a computer readable control program so as to function as a display control unit, to be displayed with the highest priority.

According to the present invention, when the document information registered in the document information storage unit is read out and displayed on the display unit, the document information determined to include date / time information is preferentially displayed. Therefore, it is possible to easily select and print document information that includes date and time information in the document information and has a high possibility of being used regularly.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing an external appearance of a printing apparatus as an electronic apparatus according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an external appearance of a tape cassette used in the printing apparatus and a part of the internal structure of the printing apparatus. is there. As shown in FIGS. 1 and 2, the printing apparatus 1 includes an input unit 3, a display unit 4, and an opening / closing lid 5 on the upper surface of the apparatus body 2. Inside the opening / closing lid 5, a cassette loading unit 6 for loading the tape cassette 21 containing the printing tape 31 and the ink ribbon 35 is formed.

  The input unit 3 includes character input keys such as a character key for inputting character information, a numeric key, and a symbol key, and further includes a power key, a cursor key for moving a cursor displayed on the display unit 4, A registration key operated when performing registration processing of document information created from input character information, an execution key operated when performing confirmation of various input information and selection data, an instruction to start a predetermined function, etc. Provided with a call key that is operated when performing call processing for calling arbitrary document information from a plurality of registered document information, and a print key that is operated when executing print processing of document information called by the call processing It is done. The display unit 4 is a liquid crystal display device that displays input character information, a selection menu screen for various settings, messages about processing, and the like, as well as various types of labels such as the length of a label to be created and the state of a print mode. Information is displayed. Also, the document information registered and stored in the document information memory is called up and displayed.

  In the cassette loading unit 6, the printing tape 31 is arranged between the thermal head 7 and a printing head (thermal head) 7 that prints on a long print medium (printing tape) 31 with printing elements arranged in the vertical direction. A tape printing mechanism is provided that includes a platen roller 8 that sandwiches and transports the ink ribbon 35, and a ribbon take-up shaft 9 that winds the ink ribbon 35 used for printing into the tape cassette 21. Further, a cassette receiving portion 10 for supporting the tape cassette 21 at a predetermined position is provided. In addition, a discharge port 12 communicating with the outside of the apparatus main body 2 is formed at one end of the cassette loading unit 6. The discharge port 12 includes a fixed blade 13 a and a movable blade 13 b, and cuts the print tape 31. A cutter 13 is provided.

  On the other hand, the tape cassette 21 is provided with a cassette case 22. Inside the cassette case 22, a tape core 23 around which a printing tape 31 is wound, a ribbon supply core 24 around which an unused ink ribbon 35 is wound, and used for printing. Ribbon take-up cores 25 for taking up the finished ink ribbon 35 are accommodated. The printing tape 31 has a laminated structure of a printing tape layer on which printing is performed, an adhesive layer, and a release tape layer. The cassette case 22 of the tape cassette 21 is formed with a head placement portion 27 on which the thermal head 7 is placed when the tape cassette 21 is loaded in the cassette loading portion 6. Is formed with an engaged portion 29 that is engaged with and supported by the cassette receiving portion 10 of the cassette loading portion 6.

  In this printing apparatus 1, when printing information such as character data is input from the input unit 3 and printing is instructed, the printing tape 31 and the ink ribbon 35 are pulled out from the tape cassette 21, and are superposed on the platen roller 8. Between the thermal head 7 and the thermal head 7 and is transported together, and the thermal head 7 is driven to generate heat based on the print data of the input characters, and the ink on the ink ribbon 35 is thermally transferred to the print tape 31 to be printed. Is printed. When printing is completed, the cutter 13 is operated to cut the print tape 31 to produce one label.

  FIG. 3 is a block diagram showing the configuration of the electronic circuit of this printing apparatus. The electronic circuit of the printing apparatus includes a control unit 40 that includes a CPU that is a computer. The control unit 40 is connected to a system program stored in the ROM 41 in advance in response to a key operation signal from the input unit 3 or from an external storage medium 50 such as a memory card or CD-ROM through the storage medium reading unit 51. The device control program read into the memory or the device control program read into the internal memory from the Web server 52 on the external communication network N via the communication control unit 53 is started, and the operation of each part of the circuit is performed using the RAM 42 as a work memory. Control. The control unit 40 is connected to the input unit 3, the display unit 4, the printer unit 20, the ROM 41, and the RAM 42, as well as a display font ROM 43 that stores character fonts for display, and a character font for printing. A print font ROM 44 to be stored is connected. Also, the control unit 40 registers the document information created by the characters input from the input unit 3 and stores and saves the document information, and determines whether the registered document information includes date and time information. A date / time definition information memory 46 for storing definition information of date / time information to be generated, an update schedule information memory 47 in which update schedule information of date / time information included in the registered document information is set, and current date information are generated. An RTC (real time clock) 48 is connected.

  The ROM 41 includes a program for printing the document information input from the input unit 3, a program for calling the document information from the document information memory 45 according to the present invention, and a program for each process performed by the printing apparatus 1. It is remembered. The RAM 42 also has an input data memory for storing input document information, a print data memory for storing character print pattern data (print data), and display data for storing pattern data displayed on the display unit 4. Each area of the memory is secured, and a register, a counter, and the like are provided for temporarily storing data necessary for printing processing.

  FIG. 4 is an explanatory diagram of document information registered in the document information memory 45. As shown in FIG. 4, the document information is composed of a file name and the content of the document information (hereinafter, the content of the document information is also simply referred to as document information). These pieces of document information are used to create labels by printing on the printing tape 31, and are created by editing characters input from the input unit 3, and after printing on the printing tape 31. Registered in the document information memory 45. The registered document information is called up and used as necessary after registration. As shown in FIG. 4, in the document information memory 45, a plurality of document information is registered with file names. Further, the document information is created in an arbitrary content, and the document information in which the date information is included or the date information is not included is registered in the document information memory 45. For example, each document information includes appropriate documents such as “customer file”, “employment management”, “time card”, “courier service”, “sales promotion sample”, and “rental management” depending on the contents. Registered with an information name (file name). Here, the date and time information indicating the date and time is included in the contents of the document information whose file names are “work management”, “time card”, and “for rental management”.

  The date / time definition information memory 46 stores definition information for defining date / time information. The definition information of the date / time information is referred to when determining whether or not the date / time information is included in the document information registered in the document information memory 45. This date / time information refers to information directly or indirectly related to date or time. For example, in the date and time definition information memory 46, “Heisei xx year x month xx day”, “Heisei xxx year x xx month xx day”, “Heisei xxx year xx month” and “20 xxx / Definition information of various date and time information such as “XX / XXX” is stored, a character string in the registered document information is searched based on these definition information, and the date and time is registered in the registered document information. It is possible to judge whether information is included or not. The “x” part of the definition information means an arbitrary number.

  The update schedule information memory 47 is for setting schedule information for updating date / time information included in the document information registered in the document information memory 45. In the update schedule information memory 47, the set update schedule information is stored in the document information memory 45 in correspondence with the file name or the document information. FIG. 5 shows the update schedule information set in the update schedule information memory 47. As shown in FIG. 5, when the document information registered in the document information memory 45 includes date / time information, a schedule condition for updating the date / time information is set, and the file name (or document information) is set. Correspondingly, the setting of whether or not to compare with the current date and time and the comparison condition are set corresponding to the items of “year”, “month”, and “day” of the date and time information included in the registered document information. . In the example shown in FIG. 5, the item “year” and “month” of the date and time information included in the document information whose file name is “employment management” is set not to be compared with the current date and time. In the column, information “0” is set, and in correspondence with the item “day”, a setting for comparing with the current date is set, and information “1” is set in the setting column for comparison. This indicates that plus / minus 2 days are set for the date information in the date / time information.

  The registered document information calling process performed by the printing apparatus as the electronic apparatus according to the present invention will be described below. FIG. 6 shows a flowchart of a process for calling document information registered in the document information memory 45. The call mode of the registered document information is set by operating the call key of the input unit 3. First, it is determined whether there is document information registered in the document information memory 45 (step S1). If there is no document information registered in the document information memory 45 (NO in step S1), an error message “No registered document” is displayed on the display unit 4 (step S2), and the process is terminated. If there is document information registered in the document information memory 45 (YES in step S1), the file names of the registered document information stored in the document information memory 45 in the registration order are sorted in the character code order ( Step S3). Next, a counter n for designating the order of document information is set to 1 (step S4), and is included in the contents of the document information from the first document information of N pieces of document information registered in the document information memory 45. The date / time information to be retrieved is searched based on the definition information stored in the date / time definition information memory 46 (step S5). As a result of the date / time information search, when it is determined that the date / time information is included in the document information (YES in step S6), identification information is added to the document information including the date / time information (step S7). Next, it is determined whether the value of the counter n is N (step S8). If it is not N (NO in step S8), the value of the counter n is incremented by 1 (step S9), and the process returns to step S5.

  When the processing of steps S5 to S9 is repeated for N pieces of document information registered in the document information memory 45, and it is determined in step S8 that the value of the counter n is N (YES in step S8). The file names are grouped into the document information group to which the identification information is added in step S7 and the document information group to which the identification information is not added, and the file names are sorted in the character code order in each group. (Step S10). Therefore, a predetermined mark is added to the file name of the document information to which the identification information is added, and the group of the file name of the document information including the date information and the identification information is added with the identification information not including the date information. A list is displayed on the display unit 4 in a higher order than the file name group of the document information not to be processed (step S11). FIG. 7 shows the registered document information call screen 4a displayed in step S11. As shown in the figure, the file names of each registered document information of “customer file”, “employment management”, “time card”, “courier service”, “promotional sample” and “for rental management” are listed. , Each document information of “work management”, “time card” and “for rental management”, which includes date and time information in the registered document information, has a predetermined date indicating that the date and time information is included in the file name. The mark 4b is added and displayed. Since document information including date and time information is preferentially displayed in this way, document information including date and time information that has a high possibility of being updated and used repeatedly is easily obtained with a small number of operation procedures. You can choose. If there are multiple pieces of document information including date and time information, in addition to arranging them in the order of the character code of the file name, priority is given to the newer date and time information included in the document information, or date and time information included in the document information. The older one may be prioritized and arranged.

  In the printing apparatus 1, when desired document information is selected by designating a file name on the document information call screen 4 a shown in FIG. 7, the contents of the document information corresponding to the selected file name are read from the document information memory 45. And displayed on the display unit 4. The document information read to the display unit 4 is edited on the input editing screen, such as correction of document information and update of date / time information, and then processing such as printing on the print tape 31 is performed. Further, the document information that has been edited such as correction of contents can be registered again in the document information memory 45. In step S11, the file names of the registered document information are displayed as a list. However, the document information itself may be displayed without using the file name, or the head portion of the document information may be displayed. It may be. In step S3 and step S10, the file names are sorted. However, a part of the document information (first part) may be used instead of the file name.

  Next, document information registration processing and call processing according to another embodiment of the present invention will be described with reference to FIGS. FIG. 8 is a flowchart showing document information registration processing, and FIG. 9 is a flowchart showing document information call processing registered in FIG. First, the document information registration process of FIG. 8 will be described. The document information to be registered is input and edited (step A1). Next, when the date and time information is included in the document information to be registered and the document information date and time information is updated and the document information is used later, conditions for updating the document information are set (step S1). A2). FIG. 10 shows an update schedule condition setting screen. In this setting screen 4c, it is possible to set whether or not to compare items such as “year”, “month”, and “day” constituting the date information with the current date and time, and the item with the current date and time. When setting for comparison is performed, a comparison condition can be set. In FIG. 10, for example, for the document information whose file name is “employment management” shown in FIG. 4, the date and time information “February 20, 2007” included in the document information includes the items constituting the date and time. Do not set the comparison with the current date and time for a certain “year” and “month”, set the comparison with the current date and time for “day”, and set plus or minus 2 days as the comparison condition. Represents. After setting the conditions to be updated in step A2, the file name is input and the document information input and edited by operating the registration key of the input unit 3 is registered in the document information memory 45 with the file name attached. (Step S3). Note that step A2 is passed in registering document information that does not include date and time information.

  Next, the document information calling process registered in FIG. 8 will be described based on the flowchart of FIG. The call mode of the registered document is set by operating the call key of the input unit 3. First, it is determined whether there is document information registered in the document information memory 45 (step B1). If there is no document information registered in the document information memory 45 (NO in step B1), an error message “No registered document” is displayed on the display unit 4 (step B2), and the process is terminated. If there is document information registered in the document information memory 45 (YES in step B1), the file names of the document information stored in the document information memory 45 in the order of registration are sorted in the character code order (step B3). . Next, the counter n for designating the order of the document information is set to 1 (step B4), and the date and time included in the document information from the first document information of the N pieces of document information registered in the document information memory 45 Information search is performed based on the definition information stored in the date and time definition information memory 46 (step B5). If it is determined that the date / time information is included in the document information as a result of the date / time information search (YES in step B6), the second identification information is added to the document information including the date / time information (step B7). Subsequently, the current date and time information is acquired from the RTC 48 (step B8), and it is determined whether the update schedule information set in the document information corresponds to the current date and time information (step B9). For example, in the update schedule information memory 47 shown in FIG. 5, plus / minus 2 days is set for the item “day”. This means that the range of the 18th to 22nd is set for “20 days” of the date information of the date information included in the document information whose file name is “work management”. Therefore, for example, if the current date / time information is March 18, 2008, it is determined that the current date / time information corresponds to the scheduled update information (planned date / time information). On the other hand, if the current date / time information is March 10, 2008 or March 25, 2008, it is determined that the current date / time information does not correspond to the scheduled update information. If it is determined that the current date and time information corresponds to the scheduled update information (YES in step B9), the first identification information is added to the document information (step B10). If it is determined that there is no date / time information in the document information (NO in step B6) and if it is determined that the scheduled update information does not correspond to the current date / time information (NO in step B9), the process of step B10 is passed. . Next, it is determined whether or not the value of the counter n is N (step B11). If it is not N (NO in step B11), the value of the counter n is incremented by 1 (step B12), and step S5. Return to.

  Steps B5 to B12 are repeated for N pieces of document information registered in the document information memory 45. When it is determined in step B11 that the value of the counter n is N, the first identification information is The file name of the attached document information, the file name of the document information to which the second identification information is attached, and the file name of the document information to which no identification information is attached are grouped and the first identification information is attached. The file name of the document information is given the highest priority, the file name of the document information with the second identification information is given priority next, the file name of the document information without any identification information is arranged last, File names between groups are sorted in the order of character codes (step B13). Thus, the file name of the group of document information to which the first identification information is added is the highest, the file name of the group of document information including the date / time information to which the second identification information is added is the next higher, and the date / time information A list of file names of a group of document information not including identification information not including “” is displayed on the display unit 4 in a lower order (step B 14). FIG. 11 shows the registered document information call screen 4d displayed in step B14. As shown in the figure, the “time card” and “for rental management” of the document information including the first identification information are ranked highest, and the “employment management” of the document information including the second identification information follows, “Customer file”, “for courier service” and “sales promotion sample” of document information not including date and time information are followed. Reference numerals 4e and 4b denote marks corresponding to the first identification information and the second identification information, respectively, which are added to identify document information that does not include date / time information. As described above, since document information including date information and including scheduled update information is preferentially displayed, an operation with few document information including date information that is likely to be periodically updated and used repeatedly is used. Can be easily selected by procedure. In the calling process of registered document information shown in FIG. 9, if there is a plurality of document information that includes date / time information and it is determined that the current date / time information corresponds to the date / time information to be updated, the date / time to be updated Document information whose information is closer to the current date and time information is displayed more preferentially. In addition, because the date and time information for which the update schedule date and time information has passed the current date and time information has a lower priority, even if the update date and time information is set, the current date and time information and the update date and time information Displayed below the corresponding document information.

  In the printing apparatus 1, when desired document information is selected by designating a file name on the document information call screen 4 d shown in FIG. 11, the document information corresponding to the selected file name is read from the document information memory 45. It is displayed on the display unit 4. The document information read to the display unit 4 is edited on the input editing screen, such as correction of document information and update of date / time information, and then processing such as printing on the print tape 31 is performed. Further, the document information that has been edited such as correction of contents can be registered again in the document information memory 45. In step B14, the file names of the registered document information are displayed as a list. However, the document information itself may be displayed without using the file name, or the head portion of the document information may be displayed. It may be. In step B3 and step B13, the files are sorted by file name. However, a part (first part) of the document information may be used instead of the file name.

  In the document information call screen, the marks 4b and 4e are added to the file name of the document information having the date and time information. For example, the file name to be displayed preferentially is displayed in large characters or in bold characters. It is desirable to have a display form that enhances discrimination such as display.

1 is a plan view of a printing apparatus as an electronic apparatus according to an embodiment of the present invention. The perspective view which shows a part of external appearance of the tape cassette used for the printing apparatus, and the internal structure of a printing apparatus. The block diagram which shows the structure of the electronic circuit of the printing apparatus. Explanatory drawing of the document information registered into document information memory. Explanatory drawing of the schedule information of the update set to the update schedule information memory. 6 is a flowchart of registered document information call processing of the printing apparatus. Explanatory drawing of the calling screen of the registered document information of the printing apparatus. 6 is a flowchart of document information registration processing of the printing apparatus. 6 is a flowchart of registered document information call processing of the printing apparatus. Explanatory drawing of the setting screen of the registration process of the document information of the printing apparatus. Explanatory drawing of the calling screen of the registered document information of the printing apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Printing apparatus 3 ... Input part 4 ... Display part 6 ... Cassette loading part 7 ... Thermal head 8 ... Platen roller 13 ... Cutter 21 ... Tape cassette 31 ... Printing tape 40 ... Control part 41 ... ROM 42 ... RAM 45 ... Document information Memory 46 ... date and time definition information memory 47 ... update schedule information memory 48 ... RTC

Claims (5)

Display means for reading out and displaying the document information registered in the document information storage means ;
And document information selection means for selecting a desired document information from the document information displayed on the display means,
Document information editing means for editing the document information selected by the document information selecting means;
In a printing apparatus comprising: printing means for printing document information edited by the document information editing means on a printing tape to form a label ;
First determination means for determining whether or not date information is included in the document information registered in the document information storage means;
An update scheduled date and time setting means capable of setting a date and time for scheduling update of document information registered in the document information storage means;
Current date and time information acquisition means for acquiring current date and time information;
Second determination means for determining a correspondence between the current date information acquired by the current date information acquisition means and the update date information set by the update date setting means;
Out of a plurality of pieces of document information read from the document information storage unit , grouping document information that is determined to include date and time information by the first determination unit and document information that does not include date and time information; A group of document information including date / time information is arranged higher than document information not including date / time information and displayed in a list on the display means in a display form different from the document information not including date / time information. Document information for which date and time information is determined to be included by the first determination means, and which is determined by the second determination means to correspond to the current date and time information to be updated is given the highest priority. Display control means for displaying with,
A printing apparatus comprising: The display control means is document information that is determined to include date / time information by the first determination means, and the current date / time information corresponds to the date / time information to be updated by the second determination means. The printing apparatus according to claim 1 , wherein when there is a plurality of determined document information, the document information whose date and time information to be updated is closer to the current date and time information is displayed with higher priority . When the display control unit reads document information from the document information storage unit and displays the document information on the display unit, there is a plurality of document information determined by the first determination unit to include date and time information. 2. The printing apparatus according to claim 1, wherein document information including newer date and time information is displayed more preferentially. When the display control unit reads document information from the document information storage unit and displays the document information on the display unit, there is a plurality of document information determined by the first determination unit to include date and time information. 2. The printing apparatus according to claim 1, wherein document information including older date and time information is preferentially displayed. Display means for reading out and displaying the document information registered in the document information storage means;
Document information selection means for selecting desired document information from the document information displayed on the display means;
Document information editing means for editing the document information selected by the document information selecting means;
A control program for controlling a computer of a printing apparatus comprising: printing means for printing document information edited by the document information editing means on a printing tape to form a label;
The computer,
First determination means for determining whether or not date information is included in the document information registered in the document information storage means;
An update scheduled date and time setting means capable of setting a date and time for scheduling update of document information registered in the document information storage means;
Current date and time information acquisition means for acquiring current date and time information;
Second determination means for determining a correspondence between the current date information acquired by the current date information acquisition means and the update date information set by the update date setting means;
Out of a plurality of pieces of document information read from the document information storage unit , grouping document information that is determined to include date and time information by the first determination unit and document information that does not include date and time information; A group of document information including date / time information is arranged higher than document information not including date / time information and displayed in a list on the display means in a display form different from the document information not including date / time information. Document information for which date and time information is determined to be included by the first determination means, and which is determined by the second determination means to correspond to the current date and time information to be updated is given the highest priority. Display control means to display with,
A computer-readable control program designed to function as a computer.

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