it is noted that various connections are set forth between elements in the following description . it is noted that these connections in general and , unless specified otherwise , may be direct or indirect and that this specification is not intended to be limiting in this respect . aspects of the invention may be implemented in computer software as programs storable on computer - readable media including but not limited to rams , roms , flash memories , eeproms , cd - media , dvd - media , temporary storage , hard disk drives , floppy drives , permanent storage , and the like . hereinafter , embodiments according to aspects of the present invention will be described with reference to the accompany drawings . in a first embodiment , an rss feed url 202 , depending on the kind of an error caused in a multi - function peripheral ( mfp ) 10 , is acquired from a bookmark server 90 . as illustrated in fig1 , an mfp system 2 includes the mfp 10 , a plurality of pcs 70 and 71 , the bookmark server 90 , and a plurality of content providing servers 91 . the mfp 10 includes a controller 12 , a touch panel 50 , a keypad 52 , a printing unit 54 , a facsimile unit 58 , a network interface ( i / f ) 60 , and a pstn i / f 62 . in addition , the controller 12 has a cpu 14 , a rom 16 , a ram 30 , and an nvram 40 . the cpu 14 performs various processes in accordance with various programs stored on the rom 16 . basic - function programs 18 are adapted to control basic operations of the mfp 10 . the basic - function programs 18 include programs for controlling the printing unit 54 and the facsimile unit 58 . an internet connection program 20 is for establishing a connection with an internet 8 . a feed analyzing program 22 is for analyzing a feed acquired from a content providing server 91 and creating content information . the nvram 40 is provided with a basic - function parameter storage area 42 , a setting information table 44 , an error group information table 46 , and an error code information table 48 . the basic - function parameter storage area 42 is configured to store various parameters , such as print settings and facsimile settings , which the cpu 14 uses when executing processes in accordance with the basic - function programs 18 . the error group information table 46 is configured to store error groups 203 and major divisional errors in association with each other . various kinds of errors caused in the mfp 10 are classified into the major divisional errors on the basis of a higher concept . as exemplified in fig2 , each of the error groups 203 is denoted by a letter of the alphabet ( e . g ., “ a ,” “ b ,” “ c ,” “ d ,” etc .). the major divisional errors include “ unknown error ” representing unspecified errors , “ paper jam error ” representing paper jam , “ cover open error ” representing any cover left opened , and “ ink - related error ” representing errors concerning ink . the error code information table 48 is configured to store error codes 204 and minor divisional errors in association with each other . the errors classified into each of the major divisional errors are further classified into the minor divisional errors , based on detailed information on what kind of error each error is . as exemplified in fig3 , the error codes 204 are denoted by numerals ( e . g ., “ 0001 ,” “ 0002 ,” “ 0003 ,” “ 0004 ,” etc .). additionally , for instance , the errors classified into the major divisional error “ ink error ” are further classified into minor divisional errors such as “ ink empty error ” representing a state out of ink and “ ink blocked error ” representing a clogged state of an ink channel . the setting information table 44 is configured to store various settings . as exemplified in fig4 , the setting information table 44 stores setting items such as a registered error group 223 , a registered error code 224 , a bookmark url 201 , and a registered rss feed url 222 . as the registered error group 223 , an error group 203 corresponding to an error caused in the mfp 10 is registered . when no error occurs , no error group is registered as the registered error group 223 . as the registered error code 224 , an error code 204 corresponding to the error caused in the mfp 10 is registered . when no error occurs , no error code is registered as the registered error code 224 . in addition , when a major divisional error has been specified , yet a minor divisional error has not been specified for the error caused in the mfp 10 , no error code is registered as the registered error code 224 . the bookmark url 201 is information for accessing the bookmark server 90 and acquiring bookmark rss feeds . for example , the bookmark url 201 may previously be registered as an initial setting at the time of manufacture of the mfp 1 . as the registered rss feed url 222 , stored is an rss feed url 202 corresponding to the registered error group 223 and the registered error code 224 , which url 202 is retrieved from the bookmark table 94 . the network i / f 60 is linked with a lan cable 4 . the mfp 10 is communicable with the pcs 70 and 71 , and accessible to the internet 8 . the ram 30 is provided with a basic - function work area 32 , which is a storage area to store various kinds of data generated during execution of a process in accordance with the basic - function programs 18 . the mfp 10 is connected with the lan cable 4 . the pcs 70 and 71 are connected with the lan cable 4 . the lan cable 4 is linked with the internet 8 via a router 6 . the bookmark server 90 and the content providing servers 91 are connected with the internet 8 . each of the bookmark server 90 and the content providing servers 91 opens to the public a site including a plurality of contents . each of the content providing servers 91 stores error information rss feeds ( rss - format feeds ). each of the error information rss feeds is created for a corresponding one of errors , and includes various kinds of information such as information on how to handle or settle the corresponding error . for instance , an error information rss feed , corresponding to the ink empty error , contains information on how to replace an ink cartridge and how to purchase a new ink cartridge . the bookmark server 90 stores the bookmark rss feeds are transmitted to the mfp 10 via the internet 8 . the mfp 10 creates the bookmark table 94 based on the bookmark rss feeds . on the bookmark table 94 , a content title character string 140 and an rss feed url 202 are registered for each of plural kinds of errors . the content title character string 140 is a character string that includes an error group 203 , an error code 204 , and title characters representing a title of each content ( error ). further , the rss feed url 202 is a url for accessing an rss feed corresponding to each error . as exemplified in fig5 , the bookmark table 94 is provided with n - pieces storage areas . data numbers 210 of “ 1 ” to “ n ” are assigned to the storage areas , respectively . for example , the content title character string 140 corresponding to the data number 210 of “ 6 ” includes “ d ” as an error group 203 , “ 0006 ” as an error code 204 , and “ ink empty error ” as title characters . further , the rss feed url 202 “ http :// rss . brother . com / inkemptyerror /” corresponding to the data number 210 of “ 6 ” is a url for acquiring an error information rss feed concerning the ink empty error . operations of the mfp 10 in the first embodiment will be described with reference to fig6 and 7 , under an assumption that an ink empty error has occurred in the mfp 10 . an error detecting process will be set forth referring to fig6 . the cpu 14 initially detects ( determines ) whether an error has been caused in the mfp 10 ( s 11 ). when no error has been caused ( s 11 : no ), the cpu 14 goes back to s 11 to continue the error detection . meanwhile , when an error has been caused ( s 11 : yes ), the cpu 14 advances to s 13 . in 13 , the cpu 14 retrieves an error group corresponding to the caused error from the error group information table 46 ( s 13 ). then , the retrieved error group 203 is registered as the registered error group 223 on the setting information table 44 . additionally , the cpu 14 retrieves an error code 204 corresponding to the caused error from the error code information table 48 . then , the retrieved error code 204 is registered as the registered error code 224 on the setting information table 44 . since the present explanation is being provided under the assumption that the ink empty error has occurred , the error group 203 of “ d ” is retrieved from the error group information table 46 ( see fig2 ), and registered as the registered error group 223 on the setting information table 44 ( see fig4 ). further , the error code 204 of “ 0006 ” is retrieved from the error code information table 48 ( see fig3 ), and registered as the registered error code 224 on the setting information table 44 . subsequently , an error information rss feed acquiring process will be explained with reference to fig7 . the bookmark url 201 is registered onto the setting information table 44 ( s 19 ). for example , the bookmark url 201 may be registered as an initial setting at the time of manufacture of the mfp 10 . further , the bookmark url 201 may be registered using the mfp 10 or the pc 70 or 71 . a process of s 21 to s 33 is a loop process executed while the mfp 10 is working . thereby , an operation of always monitoring an error of the mfp 10 is performed . the cpu 14 accesses the bookmark server 90 based on the bookmark url 201 , and acquires the bookmark rss feeds ( s 21 ). the cpu 14 executes the feed analyzing program 22 to create the bookmark table 94 ( see fig5 ) from the bookmark rss feeds acquired . subsequently , the cpu 14 determines whether there is an rss feed url 202 corresponding to the registered error group 223 on the bookmark table 94 ( s 23 ). specifically , the cpu 14 determines whether the content title character strings 140 on the bookmark table 94 include an error group identical to the registered error group 223 on the setting information table 44 . when determining that the content title character strings 140 on the bookmark table 94 does not include an error group identical to the registered error group 223 on the setting information table 44 ( s 23 : no ), the cpu 14 goes to s 25 . in s 25 , the cpu 14 determines that the error caused in the mfp 10 is an unknown error ( s 25 ). then , the cpu 14 registers an rss feed url 202 for accessing an error information rss feed regarding how to settle or handle the unknown error , as the registered rss feed url 222 on the setting information table 44 . thereafter , the cpu 14 goes to s 33 . it is noted that the rss feed url 202 corresponding to the unknown error may , for instance , previously be registered as an initial setting at the time of manufacture of the mfp 10 . meanwhile , when determining that the content title character strings 140 on the bookmark table 94 includes an error group identical to the registered error group 223 on the setting information table 44 ( s 23 : yes ), the cpu 14 goes to s 27 . in the first embodiment , the cpu 14 detects an error group identical to the registered error group 223 “ d ” on the setting information table 44 ( see fig4 ) which error group is included in the respective content title character strings 140 corresponding to the data numbers 210 equal to “ 6 ” and “ 7 ” on the bookmark table 94 ( see fig5 ). then , the cpu 14 goes to s 27 . in s 27 , the cpu 14 determines whether there is an rss feed url 202 corresponding to the registered error code 224 on the bookmark table 94 ( s 27 ). specifically , the cpu 14 determines whether the content title character strings 140 on the bookmark table 94 include an error code identical to the registered error code 224 on the setting information table 44 . when determining that the content title character strings 140 on the bookmark table 94 do not include an error code identical to the registered error code 224 on the setting information table 44 ( s 27 : no ), the cpu 14 goes to s 29 . in s 29 , the cpu 14 determines that the cpu 14 has specified the major divisional error of the caused error based on the error group but not yet the minor divisional error thereof based on the error code . then , the cpu 14 registers an rss feed url 202 for accessing an error information rss feed regarding how to handle or settle the major divisional error specified , as the registered rss feed url 222 on the setting information table 44 . thereafter , the cpu 14 goes to s 33 . meanwhile , when determining that the content title character strings 140 on the bookmark table 94 include an error code identical to the registered error code 224 on the setting information table 44 ( s 27 : yes ), the cpu 14 goes to s 31 . in the first embodiment , the cpu 14 detects an error code identical to the registered error code 224 “ 0006 ” on the setting information table 44 ( see fig4 ) which error code is included in the respective content title character strings 140 corresponding to the data number 210 equal to “ 6 ” on the bookmark table 94 ( see fig5 ). then , the cpu 14 goes to s 31 . in s 31 , the cpu 14 determines that the cpu 14 has exactly specified the caused error based on the major divisional error and the minor divisional error . then , the cpu 14 registers an rss feed url 202 for accessing an error information rss feed regarding how to handle or settle the minor divisional error , as the registered rss feed url 222 on the setting information table 44 ( s 31 ). after that , the cpu 14 goes to s 33 . in the first embodiment , the rss feed url 202 “ http :// rss . brother . com / inkemptyerror /,” which corresponds to the data number 210 of “ 6 ” on the bookmark table 94 ( see fig5 ), is stored as the registered rss feed url 222 on the setting information table 44 ( see fig4 ). in s 33 , the cpu 14 accesses a content providing server 91 based on the registered rss feed url 222 stored on the setting information table 44 , and acquires an intended error information rss feed from the content providing server 91 ( s 33 ). the cpu 14 executes the feed analyzing program 22 , creates content information based on the error rss feed acquired , and displays the created content information on the touch panel 50 . in the first embodiment , the cpu 14 accesses a content providing server 91 based on the registered rss feed url 222 “ http :// rss . brother . com / inkemptyerror /,” and acquires the error information rss feed concerning the ink empty error . then , the cpu 14 creates contents regarding the ink empty error ( e . g ., an ink cartridge replacement method and an ink cartridge purchasing method ), and displays the created contents on the touch panel 50 . thereby , it is possible to render the mfp 10 more user - friendly which helps a user to replace the ink cartridge or purchase an ink cartridge in accordance with the information displayed on the touch panel 50 . thus , the mfp 10 of the first embodiment can provide the following effects . by storing only the bookmark url 201 on the setting information table 44 , the mfp 10 can acquire an rss feed url 202 corresponding to a specified error group 203 and a specified error code 204 . thereby , even when the mfp 10 is required to select an rss feed url 202 corresponding to an error state from the rss feed urls 202 that are respectively prepared for error states frequently caused in the mfp 10 ( e . g ., an ink empty error , a paper jam , a cover - open error , etc .) and access the selected url 202 , the mfp 10 needs not store all kinds of rss feed urls 202 on storage thereof . thus , it is possible to reduce a storage capacity of the mfp 10 . in addition , in order to add or change an rss feed url 202 , the user has only to modify the bookmark rss feeds stored on the bookmark server 90 , and does not have to modify anything of each individual mfp 10 . thus , it is possible for the user to easily add or change an rss feed url 202 . further , the mfp 10 of the first embodiment is provided with two hierarchies of error information , i . e ., the error groups 203 and the error codes 204 . the error state is classified into a major divisional error based on the error group 203 , and further classified into a minor divisional error based on the error code 204 . hence , it is possible to change a degree as to how detailed error information is to be offered depending on to what extent the error state is specified . thus , it is possible to present appropriate error information . the mfp 10 of the first embodiment is configured to access an error information rss feed for a previously - registered unknown error even when the mfp 10 cannot search an rss feed url 202 corresponding to any of a specified error group 203 and a specified error code 204 ( i . e ., when the mfp 10 determines the caused error is an unknown error ). therefore , it is possible to avoid a situation where the mfp 10 cannot access any error information rss feed when an unknown error is caused in the mfp 10 . in a second embodiment , the mfp 10 acquires an rss feed url corresponding to a country where the mfp 10 is used . in the second embodiment , the nvram 40 ( see fig1 ) is provided with a setting information table 44 a , a regional - code information table 46 a , and a country code information table 48 a . the regional - code information table 46 a stores regional codes 203 a and regional names in association with each other . the regional codes are for classifying countries into higher - conceptional categories such as north and central america and europe . as exemplified in fig8 , each of the regional codes 203 a is denoted by a letter of the alphabet ( e . g ., “ a ,” “ b ” “ c ” “ d ” etc .). the country code information table 48 a stores country codes 204 a and country names in association with each other . the country codes 204 a are lower - conceptional categories than the regional codes 203 a . as exemplified in fig9 , the country codes 204 a are denoted by numerals ( e . g ., “ 0001 ,” “ 0002 ,” “ 0003 ,” “ 0004 ,” etc .). the setting information table 44 a is a table for storing various settings . as exemplified in fig1 , the setting information table 44 a stores setting items such as a registered regional code 223 a , a registered country code 224 a , a bookmark url 201 a , and a registered rss feed url 222 a . as the registered regional code 223 a , stored is a regional code 203 a of a country where the mfp 10 is used . as the registered country code 224 a , stored is a country code 204 a of the country where the mfp 10 is used . at the time of shipment of the mfp 10 , an arbitrary regional code 203 a and an arbitrary country code 204 a may be registered as the registered regional code 223 a and the registered country code 224 a , respectively . it is noted that the bookmark url 201 a and the registered rss feed url 222 a are the same as the bookmark url 201 and the registered rss feed url 222 , respectively . therefore , detailed explanations about the bookmark url 201 a and the registered rss feed url 222 a will be omitted here . each of the content providing servers 91 stores country information rss feeds ( rss - format feeds ). each of the country information rss feeds is created for a corresponding one of countries , and includes various kinds of information ( e . g ., update information ) created in a language of the corresponding country . the bookmark server 90 stores bookmark rss feeds ( rss - format feeds ). the mfp 10 creates a bookmark table 94 a based on the bookmark rss feeds . on the bookmark table 94 a , a content title character string 140 a and an rss feed url 202 a are registered for each country . as exemplified in fig1 , the bookmark table 94 a is provided with k - pieces of storage areas . data numbers 210 a of “ 1 ” to “ k ” are assigned to the storage areas , respectively . for example , the content title character string 140 a corresponding to the data number 210 a of “ 48 ” includes “ f ′ as a regional code 203 a , “ 0048 ” as a country code 204 a , and “ japan ” as a country name . further , the rss feed url 202 a “ http :// rss . brother . co . jp ” corresponding to the data number 210 a of “ 48 ” is a url for acquiring a country information rss feed concerning japan . operations of the mfp 10 in the second embodiment will be described with reference to fig1 and 13 . the following description will be provided under an assumption that the mfp 10 is used in the united states of america . a using - country setting process will be set forth referring to fig1 . in s 41 , the cpu 14 determines whether an operation is provided for starting a country code setting process ( s 41 ). the country code setting process is adapted to set a using country where the mfp 10 is used . the country code setting process is launched , for example , in response to a user operation on the touch panel 50 . when determining that an operation for starting a country code setting process is not provided ( s 41 : no ), the cpu 14 goes back to s 41 and continuously monitors whether an operation for starting a country code setting process is provided . meanwhile , when determining that an operation for starting a country code setting process is provided ( s 41 : yes ), the cpu 14 advances to s 43 . in the country code setting process of s 43 , the cpu 14 accepts a user &# 39 ; s input to specify a using country . the user &# 39 ; s input to specify a country is accepted , for example , through the touch panel 50 . the cpu 14 retrieves a regional code 204 a corresponding to the input country from the regional - code information table 46 a , and registers the retrieved regional code 204 a as the registered regional code 223 a on the setting information table 44 a . additionally , the cpu 14 retrieves a country code 204 a corresponding to the input country from the country code information table 48 a , and registers the retrieved country code 204 a as the registered country code 224 a on the setting information table 44 a . in the second embodiment , it is assumed that “ united states ” is input as a country name . therefore , the cpu 14 retrieves the regional code 203 a of “ a ” ( for north and central america ) from the regional - code information table 46 a ( see fig8 ), and registers the regional code 203 a of “ a ” as the registered regional code 223 a on the setting information table 44 a ( see fig1 ). in addition , the cpu 14 retrieves the country code 204 a of “ 0001 ” ( for the united states ) from the country code information table 48 a ( see fig9 ), and registers the country code 204 a of “ 0001 ” as the registered country code 224 a on the setting information table 44 a . subsequently , a using - country rss feed acquiring process will be set forth with reference to fig1 . in s 49 , the bookmark url 201 a is registered on the setting information table 44 a . the bookmark url 201 a may be registered as an initial setting at the time of manufacture of the mfp 10 . a process of s 51 to s 63 is a loop process executed while the mfp 10 is working . in s 51 , the cpu 14 accesses the bookmark server 90 based on the bookmark url 201 a , and acquires the bookmark rss feeds ( s 51 ). the cpu 14 runs the feed analyzing program 22 to create the bookmark table 94 a as shown in fig1 from the bookmark rss feeds acquired . then , the cpu 14 proceeds to s 53 , in which the cpu 14 determines whether the content title character strings 140 a on the bookmark table 94 a include a regional code identical to the registered regional code 223 a on the setting information table 44 a ( s 53 ). when determining that the content title character strings 140 on the bookmark table 94 a do not include a regional code identical to the registered regional code 223 a on the setting information table 44 a ( s 53 : no ), the cpu 14 goes to s 55 . in s 55 , the cpu 14 registers an rss feed url 202 a for a default country as the registered rss feed url 222 a on the setting information table 44 a . the default country may be arbitrarily selected and previously registered as an initial setting at the time of manufacture of the mfp 10 . thereafter , the cpu 14 goes to s 63 . meanwhile , when determining that the content title character strings 140 on the bookmark table 94 a include a regional code identical to the registered regional code 223 a on the setting information table 44 a ( s 53 : yes ), the cpu 14 goes to s 57 . in s 57 , the cpu 14 determines whether the content title character strings 140 a on the bookmark table 94 a include a country code identical to the registered country code 224 a on the setting information table 44 a ( s 57 ). when determining that the content title character strings 140 a on the bookmark table 94 a do not include a country code identical to the registered country code 224 a on the setting information table 44 a ( s 57 : no ), the cpu 14 goes to s 59 . in s 59 , the cpu 14 determines that the cpu 14 has specified a regional name of the using country based on the regional code but not yet a country name of the using country based on the country code . then , the cpu 14 registers an rss feed url 202 a for accessing a using - region rss feed regarding the specified region , as the registered rss feed url 222 a on the setting information table 44 a . thereafter , the cpu 14 goes to s 63 . meanwhile , when determining that the content title character strings 140 a on the bookmark table 94 a include a country code identical to the registered country code 224 a on the setting information table 44 a ( s 57 : yes ), the cpu 14 goes to s 61 . in s 61 , the cpu 14 determines that the cpu 14 has exactly specified the using country based on both the regional name and the country name . then , the cpu 14 registers an rss feed url 202 a for accessing a using - country rss feed regarding the using country , as the registered rss feed url 222 a on the setting information table 44 a ( s 61 ). thereafter , the cpu 14 goes to s 63 . in the second embodiment , it is assumed that the using country where the mfp 10 is used is the united states . therefore , the rss feed url 202 “ http :// rss . brother . com ,” which corresponds to the data number 210 a of “ 1 ” on the bookmark table 94 a ( see fig1 ), is stored as the registered rss feed url 222 a on the setting information table 44 a ( see fig1 ). in s 63 , the cpu 14 accesses a content providing server 91 based on the registered rss feed url 222 a stored on the setting information table 44 a , and acquires from the content providing server 91 an intended using - country rss feed or an intended using - region rss feed ( s 63 ). in the second embodiment , the cpu 14 accesses a content providing server 91 based on the registered rss feed url 222 a “ http :// rss . brother . com ,” and acquires the using - country rss feed corresponding to the united states . then , the cpu 14 creates contents regarding usage of the mfp 10 in the united states ( e . g ., update information and contact information about sales subsidiaries in the united states ), and displays the created contents on the touch panel 50 . thus , the mfp 10 of the second embodiment can provide the following effects . by storing only the bookmark url 201 a on the setting information table 44 a , the mfp 10 can acquire an rss feed url 202 a corresponding to a specified regional code 203 a and a specified country code 204 a . thereby , even when the mfp 10 is required to select an rss feed url 202 a corresponding to a using country from the rss feed urls 202 a that are respectively prepared for a number of countries and access the selected url 202 a , the mfp 10 needs not store all kinds of rss feed urls 202 a on the storage thereof . thus , it is possible to reduce the storage capacity of the mfp 10 . in a third embodiment , the mfp 10 , which is configured such that device specifications thereof can be changed , acquires an rss feed url corresponding to a specification change from the bookmark server 90 . as an example of specification changes , cited is a change to upgrade a specification of the mfp 10 by adding a scanner unit or a sheet feeder unit . in the third embodiment , the nvram 40 is provided with a setting information table 44 b . the setting information table 44 b stores setting items such as a registered specification code 223 b , a bookmark url 201 b , and a registered rss feed url 222 b . as the registered specification code 223 b , stored is a specification code 203 b that represents an updated specification of the mfp 10 . at the time of shipment of the mfp 10 , a specification code 203 b corresponding to an initial configuration of the mfp 10 is registered as the registered specification code 223 b . each of the content providing servers 91 stores device specification rss feeds . each of the device specification rss feeds is created for a corresponding one of the device specifications , and includes various kinds of information such as update information . the bookmark server 90 stores bookmark rss feeds . the mfp 10 creates a bookmark table 94 b based on the bookmark rss feeds . on the bookmark table 94 b , a content title character string 140 b and an rss feed url 202 b are registered for each of the device specifications . it is noted that the bookmark table 94 b is configured in a similar manner to the bookmark table 94 a in the second embodiment . therefore , a detailed explanation about the bookmark table 94 b will be omitted here . operations of the mfp 10 in the third embodiment will be described with reference to fig1 and 15 . the following description will be provided under an assumption that the mfp 10 is upgraded with a scanner unit added thereto . a device specification setting process will be set forth referring to fig1 . in s 71 , the cpu 14 determines whether an operation is provided for starting a device specification setting process ( s 71 ). the device specification setting process is launched , for example , in response to a user operation on the touch panel 50 . when determining that an operation for starting a device specification setting process is not provided ( s 71 : no ), the cpu 14 goes back to s 71 and continuously monitors whether an operation for starting a device specification setting process is provided . meanwhile , when determining that an operation for starting a device specification setting process is provided ( s 71 : yes ), the cpu 14 proceeds to s 73 . in the device specification setting process of s 73 , the cpu 14 accepts a user &# 39 ; s input to specify an updated specification . the cpu 14 registers a specification code 203 b corresponding to the specified specification as the registered specification code 223 b on the setting information table 44 b . it is noted that the cpu 14 may launch the device specification setting process automatically in response to detecting connection between a device ( e . g ., a scanner unit ) and the mfp 10 . further , the cpu 14 may automatically detect a type of the device connected to the mfp 10 , identify the updated specification and a corresponding specification code 203 b , and register the identified specification code 203 b as the registered specification code 223 b on the setting information table 44 b . next , referring to fig1 , an explanation will be provided about a specification rss feed acquiring process . in s 79 , the bookmark url 201 b is registered on the setting information table 44 b ( s 79 ). the bookmark url 201 b may be registered as an initial setting at the time of manufacture of the mfp 10 . a process of s 81 to s 93 is a loop process executed while the mfp 10 is working . in s 81 , the cpu 14 accesses the bookmark server 90 based on the bookmark url 201 b , and acquires the bookmark rss feeds ( s 81 ). the cpu 14 runs the feed analyzing program 22 to create the bookmark table 94 b from the bookmark rss feeds acquired . then , the cpu 14 proceeds to s 83 , in which the cpu 14 determines whether the content title character strings 140 b on the bookmark table 94 b include a specification code identical to the registered specification code 223 b on the setting information table 44 b ( s 83 ). when determining that the content title character strings 140 b on the bookmark table 94 b do not include a specification code identical to the registered specification code 223 b on the setting information table 44 b ( s 83 : no ), the cpu 14 goes to s 85 . in s 85 , the cpu 14 registers an rss feed url 202 b for a default specification as the registered rss feed url 222 b on the setting information table 44 b . thereafter , the cpu 14 goes to s 93 . meanwhile , when determining that the content title character strings 140 b on the bookmark table 94 b include a specification code identical to the registered specification code 223 b on the setting information table 44 b ( s 83 : yes ), the cpu 14 goes to s 91 . in s 91 , the cpu 14 determines that the cpu 14 has exactly identified the updated specification based on the specification code . then , the cpu 14 registers an rss feed url 202 b for accessing a specification rss feed regarding the identified specification , as the registered rss feed url 222 b on the setting information table 44 b ( s 91 ). thereafter , the cpu 14 goes to s 93 . in the third embodiment , an rss feed url 202 b , corresponding to the updated specification concerning the scanner unit added , is retrieved from the bookmark table 94 b and stored as the registered rss feed url 222 b on the setting information table 44 b . in s 93 , the cpu 14 accesses a content providing server 91 based on the registered rss feed url 222 b stored on the setting information table 44 b , and acquires an intended device specification rss feed concerning the updated specification . then , the cpu 14 creates contents ( such as update information ) regarding the updated specification , and displays the created contents on the touch panel 50 . thus , the mfp 10 of the third embodiment needs not store on the storage thereof the rss feed url 202 b for each of the device specifications . hence , it is possible to reduce the storage capacity of the mfp 10 . hereinabove , the embodiments according to aspects of the present invention have been described . the present invention can be practiced by employing conventional materials , methodology and equipment . accordingly , the details of such materials , equipment and methodology are not set forth herein in detail . in the previous descriptions , numerous specific details are set forth , such as specific materials , structures , chemicals , processes , etc ., in order to provide a thorough understanding of the present invention . however , it should be recognized that the present invention can be practiced without reapportioning to the details specifically set forth . in other instances , well known processing structures have not been described in detail , in order not to unnecessarily obscure the present invention . only exemplary embodiments of the present invention and but a few examples of their versatility are shown and described in the present disclosure . it is to be understood that the present invention is capable of use in various other combinations and environments and is capable of changes or modifications within the scope of the inventive concept as expressed herein . for example , the following modifications are possible . in the aforementioned first embodiment , the association information ( the error groups 203 and the error codes 204 ), which represents the association between each error and a corresponding error rss feed , is contained in the content title character strings 140 . however , the association information may not necessarily be contained in the content title character strings 140 , and may be contained in any form within the bookmark rss feeds . further , the setting information table 44 may have a plurality of registered error groups 223 and a plurality of registered error codes 224 stored thereon . thereby , even when a plurality of errors occur simultaneously , it is possible to acquire an error information rss feed for each of the plurality of errors . furthermore , although the bookmark server 90 is provided separately from the content providing servers 91 in the first embodiment , the bookmark server 90 may be included in the content providing servers 91 .