Claims Analysis
Total Claims: 55
Claim 1
Independent Claim
188 words
An information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, said apparatus comprising: plural sets of intermediate work state preservation areas provided in said storage unit, each set of intermediate work state preservation areas being adapted to store therein respective first and second intermediate work state information representing at least an intermediate work state of said processing unit and an intermediate work state of said display unit at plural optional times during operation of said processing unit and said display unit respectively, said information including said first and second intermediate work state representing respective intermediate work states of said information processing apparatus; means for storing information representing an intermediate work state of said information processing apparatus at an optional time into an optional one of said plural sets of intermediate work state preservation areas; and means for reading information stored in said optional one of said plural sets of said intermediate work state preservation areas and recovering an intermediate work state of said information processing apparatus represented by the read information.
Claim 2
Dependent Claim
188 words
An information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, said apparatus comprising: plural sets of intermediate work state preservation areas provided in said storage unit, each set of intermediate work state preservation areas being adapted to store therein respective first and second intermediate work state information representing at least an intermediate work state of said processing unit and an intermediate work state of said display unit at plural optional times during operation of said processing unit and said display unit respectively, said information including said first and second intermediate work state representing respective intermediate work states of said information processing apparatus; means for storing information representing an intermediate work state of said information processing apparatus at an optional time into an optional one of said plural sets of intermediate work state preservation areas; and means for reading information stored in said optional one of said plural sets of said intermediate work state preservation areas and recovering an intermediate work state of said information processing apparatus represented by the read information.
Claim 3
Dependent Claim
86 words
An information processing apparatus according to claim 1, wherein said storage unit comprises a first storage unit, the contents of which are erased by turning off a power source and a second storage unit which maintains the contents even in a power-off state, said plural sets of intermediate work state preservation areas being arranged in said second storage unit, wherein said storing means is operated when the power source is turned off, and said reading means is operated when the power source is turned on again.
Claim 4
Dependent Claim
23 words
An information processing apparatus according to claim 2, wherein said second storage unit is a storage medium which does not require battery back-up.
Claim 5
Dependent Claim
58 words
An information processing apparatus according to claim 1, wherein an identifier for distinguishing respective sets of said plural sets of intermediate work state preservation areas is stored in each of said plural sets of intermediate work state preservation areas, wherein the user specifies one of said plural of intermediate work state preservation areas by using said respective identifier.
Claim 6
Dependent Claim
18 words
An information processing apparatus according to claim 4, wherein said identifier is a unique identifier for each user.
Claim 7
Dependent Claim
34 words
An information processing apparatus according to claim 1, wherein programs for implementing said storing means and reading means are provided in the form of program files which can be executed from an operating system.
Claim 8
Dependent Claim
24 words
An information processing apparatus according to claim 6, wherein plural kinds of said program files are provided corresponding to the kinds of operating systems.
Claim 9
Dependent Claim
241 words
An information processing system having at least first and second information processing apparatuses connected through a network, each of said information processing apparatuses having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, wherein said storage unit of said first information processing system includes plural sets of intermediate work state preservation areas for storing therein respective sets of information representing intermediate work states of said processing unit, said display unit and input/output (I/O) registers of peripheral devices of said second information processing apparatus at plural optional times during operation of said processing unit, said display unit and said I/O registers respectively, said respective sets of intermediate work state information being stored as intermediate work state information of said second information processing apparatus, said information processing system comprising: storing means for accessing said first information processing apparatus from said second information processing apparatus through said network to store information representing an intermediate work state of said second information processing apparatus at an optional time in one of said plural sets of intermediate work state preservation areas; and reading means for accessing said first information processing apparatus from said second information processing apparatus through said network to read information representing one set of said intermediate work state preservation areas specified by an operator from among said plural sets of intermediate work state preservation areas to reproduce said intermediate work state.
Claim 10
Dependent Claim
241 words
An information processing system having at least first and second information processing apparatuses connected through a network, each of said information processing apparatuses having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, wherein said storage unit of said first information processing system includes plural sets of intermediate work state preservation areas for storing therein respective sets of information representing intermediate work states of said processing unit, said display unit and input/output (I/O) registers of peripheral devices of said second information processing apparatus at plural optional times during operation of said processing unit, said display unit and said I/O registers respectively, said respective sets of intermediate work state information being stored as intermediate work state information of said second information processing apparatus, said information processing system comprising: storing means for accessing said first information processing apparatus from said second information processing apparatus through said network to store information representing an intermediate work state of said second information processing apparatus at an optional time in one of said plural sets of intermediate work state preservation areas; and reading means for accessing said first information processing apparatus from said second information processing apparatus through said network to read information representing one set of said intermediate work state preservation areas specified by an operator from among said plural sets of intermediate work state preservation areas to reproduce said intermediate work state.
Claim 11
Dependent Claim
35 words
An information processing apparatus according to claim 8, wherein said storing means is operated when a power source is turned off, and said reading means is operated when the power source is turned on again.
Claim 12
Dependent Claim
54 words
An information processing system according to claim 8, wherein an identifier for distinguishing respective sets of said plural sets of intermediate work state preservation areas is stored in each of said plural sets of intermediate work state preservation areas, wherein the user specifies a set of intermediate work state preservation area by said identifier.
Claim 13
Dependent Claim
18 words
An information processing system according to claim 8, wherein said identifier is a unique identifier for each user.
Claim 14
Dependent Claim
35 words
An information processing system according to claim 8, wherein programs for implementing said storing means and said reading means are provided in the form of program files which can be executed from an operating system.
Claim 15
Dependent Claim
24 words
An information processing apparatus according to claim 12, wherein plural kinds of said program files are provided corresponding to the kinds of operating systems.
Claim 16
Dependent Claim
237 words
An information processing system having at least first and second information processing apparatuses connected through a network, each of said information processing apparatuses having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, wherein said storage unit of said first information processing system includes plural sets of intermediate work state preservation areas for storing therein respective sets of information representing intermediate work states of said processing unit, said display unit and input/output (I/O) registers of peripheral devices of said second information processing apparatus at plural optional times during operation of said processing unit, said display unit and said I/O registers respectively, said respective sets of information being stored as intermediate work state information of said second information processing apparatus, said information processing system comprising: storing means for accessing said first information processing apparatus from a second information processing apparatus through said network to store information regarding an intermediate work state of said second information processing apparatus at an optional time in one of said plural sets of intermediate work state preservation areas; and reading means for accessing said first information processing apparatus from a third information processing apparatus through said network to read information regarding one set of said intermediate work state preservation areas specified by an operator from among said plural sets of intermediate work state preservation areas to reproduce said work state.
Claim 17
Dependent Claim
237 words
An information processing system having at least first and second information processing apparatuses connected through a network, each of said information processing apparatuses having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, wherein said storage unit of said first information processing system includes plural sets of intermediate work state preservation areas for storing therein respective sets of information representing intermediate work states of said processing unit, said display unit and input/output (I/O) registers of peripheral devices of said second information processing apparatus at plural optional times during operation of said processing unit, said display unit and said I/O registers respectively, said respective sets of information being stored as intermediate work state information of said second information processing apparatus, said information processing system comprising: storing means for accessing said first information processing apparatus from a second information processing apparatus through said network to store information regarding an intermediate work state of said second information processing apparatus at an optional time in one of said plural sets of intermediate work state preservation areas; and reading means for accessing said first information processing apparatus from a third information processing apparatus through said network to read information regarding one set of said intermediate work state preservation areas specified by an operator from among said plural sets of intermediate work state preservation areas to reproduce said work state.
Claim 18
Dependent Claim
35 words
An information processing apparatus according to claim 14, wherein said storing means is operated when a power source is turned off, and said reading means is operated when the power source is turned on again.
Claim 19
Dependent Claim
54 words
An information processing system according to claim 14, wherein an identifier for distinguishing respective sets of said plural sets of intermediate work state preservation areas is stored in each of said plural sets of intermediate work state preservation areas, wherein the user specifies a set of intermediate work state preservation area by said identifier.
Claim 20
Dependent Claim
18 words
An information processing system according to claim 14, wherein said identifier is a unique identifier for each user.
Claim 21
Dependent Claim
35 words
An information processing system according to claim 14, wherein programs for implementing said storing means and said reading means are provided in the form of program files which can be executed from an operating system.
Claim 22
Dependent Claim
24 words
An information processing apparatus according to claim 18, wherein plural kinds of said program files are provided corresponding to the kinds of operating systems.
Claim 23
Dependent Claim
78 words
An information processing system according to claim 14, wherein said information representing an intermediate work state includes information representing a machine type of said second information processing apparatus, and said reading means compares said information representing the machine type with information representing the machine type of said third information processing apparatus and cancels the reading processing if said information representing the machine type is different from the information representing the machine type of said third information processing apparatus.
Claim 24
Dependent Claim
144 words
A resume method for an information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, said method comprising the steps of: storing and preserving a set of information representing an intermediate work state of said processing unit and an intermediate work state of said display unit indicating an intermediate work state of said information processing apparatus, said intermediate work states being represented by said set of intermediate work state information at an optional one of a plurality of times during operation of said processing unit and said display unit respectively; specifying one of said plurality of intermediate work states by an operator; reading information representing said specified intermediate work state; and reproducing said specified intermediate work state in accordance with said read information representing the intermediate work state.
Claim 25
Dependent Claim
144 words
A resume method for an information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, said method comprising the steps of: storing and preserving a set of information representing an intermediate work state of said processing unit and an intermediate work state of said display unit indicating an intermediate work state of said information processing apparatus, said intermediate work states being represented by said set of intermediate work state information at an optional one of a plurality of times during operation of said processing unit and said display unit respectively; specifying one of said plurality of intermediate work states by an operator; reading information representing said specified intermediate work state; and reproducing said specified intermediate work state in accordance with said read information representing the intermediate work state.
Claim 26
Dependent Claim
24 words
A resume method for information processing apparatus according to claim 21, wherein said storing step is executed when a power source is turned off.
Claim 27
Dependent Claim
53 words
A resume method for information processing apparatus according to claim 21, wherein each set of said information on said plurality of intermediate work states includes an identifier for distinguishing respective sets of information from one another, and wherein; the user specifies a set of information on an intermediate work state by said identifier.
Claim 28
Dependent Claim
18 words
An information processing system according to claim 23, wherein said identifier is a unique identifier for each user.
Claim 29
Dependent Claim
184 words
A resume method for an information processing system having at least first and second information processing apparatuses connected through a network, each of said information processing apparatuses having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, said method comprising the steps of: storing and preserving information in said storage unit of said first information processing apparatus plural sets of information representing respective intermediate work states of said processing units, display units and input/output (I/O) registers of peripheral devices as respective intermediate work state information of said second information processing apparatus by accessing said first information processing apparatus from said second information processing apparatus through said network; reading information representing an intermediate work state of said second information processing apparatus from said storage unit of said first information processing apparatus by again accessing said first information processing apparatus from said second information processing apparatus through said network; and reproducing said specified intermediate work state in said second information processing apparatus in accordance with said read information representing the intermediate work state.
Claim 30
Dependent Claim
184 words
A resume method for an information processing system having at least first and second information processing apparatuses connected through a network, each of said information processing apparatuses having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, said method comprising the steps of: storing and preserving information in said storage unit of said first information processing apparatus plural sets of information representing respective intermediate work states of said processing units, display units and input/output (I/O) registers of peripheral devices as respective intermediate work state information of said second information processing apparatus by accessing said first information processing apparatus from said second information processing apparatus through said network; reading information representing an intermediate work state of said second information processing apparatus from said storage unit of said first information processing apparatus by again accessing said first information processing apparatus from said second information processing apparatus through said network; and reproducing said specified intermediate work state in said second information processing apparatus in accordance with said read information representing the intermediate work state.
Claim 31
Dependent Claim
39 words
A resume method for an information processing system according to claim 25, wherein said storing step is executed when a power source is turned off, and said reproducing step is executed when the power source is turned on again.
Claim 32
Dependent Claim
61 words
A resume method of an information processing system according to claim 25, wherein said information representing said plurality of intermediate work states stored in said storage unit of said first information processing apparatus includes identifiers for distinguishing respective sets of intermediate work state information from one another, and said intermediate work state information to be read is identified by said identifier.
Claim 33
Dependent Claim
30 words
A resume system for an information processing system according to claim 25, wherein each of said identifiers is a unique identifier for each user of said second information processing apparatus.
Claim 34
Dependent Claim
180 words
A resume method for an information processing system having at least first and second information processing apparatuses connected through a network, each of said information processing apparatuses having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, said method comprising the steps of: storing and preserving in said storage unit of said first information processing apparatus plural sets of information representing respective intermediate work state states of said processing units, display units and input/output (I/O) registers of peripheral devices as respective information of said second information processing apparatus by accessing said first information processing apparatus from said second information processing apparatus through said network; reading information representing an intermediate work state of said second information processing apparatus from said storage unit of said first information processing apparatus by accessing said first information processing apparatus from a third information processing apparatus through said network; and reproducing said specified intermediate work state in said third information processing apparatus in accordance with said read information representing the intermediate work state.
Claim 35
Dependent Claim
180 words
A resume method for an information processing system having at least first and second information processing apparatuses connected through a network, each of said information processing apparatuses having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, said method comprising the steps of: storing and preserving in said storage unit of said first information processing apparatus plural sets of information representing respective intermediate work state states of said processing units, display units and input/output (I/O) registers of peripheral devices as respective information of said second information processing apparatus by accessing said first information processing apparatus from said second information processing apparatus through said network; reading information representing an intermediate work state of said second information processing apparatus from said storage unit of said first information processing apparatus by accessing said first information processing apparatus from a third information processing apparatus through said network; and reproducing said specified intermediate work state in said third information processing apparatus in accordance with said read information representing the intermediate work state.
Claim 36
Dependent Claim
39 words
A resume method for an information processing system according to claim 29, wherein said storing step is executed when a power source is turned off, and said reproducing step is executed when the power source is turned on again.
Claim 37
Dependent Claim
58 words
A resume method for an information processing system according to claim 29, wherein said information regarding said plurality of intermediate work states stored in said storage unit of said first information processing apparatus includes identifiers for distinguishing respective sets of intermediate work station information from one another, and said information to be read is identified by said identifier.
Claim 38
Dependent Claim
32 words
A resume system for an information processing system according to claim 29, wherein each of said identifiers is a unique identifier for each user of said second and third information processing apparatuses.
Claim 39
Dependent Claim
127 words
An information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, and connected to another information processing apparatus through a network, said information processing apparatus comprising: means for storing, in said storage unit at any of a plurality of optional times during operation of said processing unit and said display unit respectively, a set of information representing at least an intermediate work state of said processing unit and an intermediate work state of said display unit; means for recalling said stored information to reproduce said intermediate work state; and means for preventing said information storing operation when said information processing apparatus is being logically connected to said another information processing apparatus.
Claim 40
Dependent Claim
127 words
An information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, and connected to another information processing apparatus through a network, said information processing apparatus comprising: means for storing, in said storage unit at any of a plurality of optional times during operation of said processing unit and said display unit respectively, a set of information representing at least an intermediate work state of said processing unit and an intermediate work state of said display unit; means for recalling said stored information to reproduce said intermediate work state; and means for preventing said information storing operation when said information processing apparatus is being logically connected to said another information processing apparatus.
Claim 41
Dependent Claim
58 words
An information processing apparatus according to claim 33, wherein said storing means stores said information representing an intermediate work state in said storage unit when the operator does not operate said information processing apparatus for a predetermined amount of time, and said information processing apparatus is not logically connected to said another information processing apparatus through said network.
Claim 42
Dependent Claim
159 words
An information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, and connected to another information processing apparatus through a network, said information processing apparatus comprising: means for storing, in said storage unit at any of a plurality of optional times during operation of said processing unit and said display unit respectively, a set of information representing at least an intermediate work state of said processing unit and an intermediate work state of said display unit; means for recalling said stored information to reproduce said intermediate work state of at least one of said processing unit and said display unit; and means for notifying the operator, before storing said intermediate work state information, that it is possible that the intermediate work state cannot be reproduced correctly when said information processing apparatus is logically connected to said another information processing apparatus through said network.
Claim 43
Dependent Claim
159 words
An information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, and connected to another information processing apparatus through a network, said information processing apparatus comprising: means for storing, in said storage unit at any of a plurality of optional times during operation of said processing unit and said display unit respectively, a set of information representing at least an intermediate work state of said processing unit and an intermediate work state of said display unit; means for recalling said stored information to reproduce said intermediate work state of at least one of said processing unit and said display unit; and means for notifying the operator, before storing said intermediate work state information, that it is possible that the intermediate work state cannot be reproduced correctly when said information processing apparatus is logically connected to said another information processing apparatus through said network.
Claim 44
Dependent Claim
30 words
An information processing apparatus according to claim 35, further comprising means for providing the operator with an option to determine whether said information is stored when said notification is generated.
Claim 45
Dependent Claim
183 words
An information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, and connected to another information processing apparatus through a network, said information processing system comprising: means for storing, in said storage unit at an optional time during operation of said processing unit and said display unit respectively, a set of information representing an intermediate work state of said information processing apparatus including at least an intermediate work state of said processing unit and an intermediate work state of said display unit and information representing a used state of a file in use; means for recalling said stored information to reproduce said intermediate work state of said information processing apparatus and said used state; means for setting said file in an unused state upon storing said information if said file in use is a file stored in said another information processing apparatus; and means for recovering said file in the used state upon reproducing said intermediate work state of said information processing apparatus and said used state.
Claim 46
Dependent Claim
183 words
An information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, and connected to another information processing apparatus through a network, said information processing system comprising: means for storing, in said storage unit at an optional time during operation of said processing unit and said display unit respectively, a set of information representing an intermediate work state of said information processing apparatus including at least an intermediate work state of said processing unit and an intermediate work state of said display unit and information representing a used state of a file in use; means for recalling said stored information to reproduce said intermediate work state of said information processing apparatus and said used state; means for setting said file in an unused state upon storing said information if said file in use is a file stored in said another information processing apparatus; and means for recovering said file in the used state upon reproducing said intermediate work state of said information processing apparatus and said used state.
Claim 47
Dependent Claim
74 words
An information processing apparatus according to claim 37, wherein said information to be stored includes information regarding the date on which said storage was executed, and said information processing apparatus further comprises means for comparing said information regarding data with the latest modified date of said file and notifying the operator that said file has been modified if the data on which said storage was executed before the latest modified date of said file.
Claim 48
Dependent Claim
156 words
An information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, and connected to another information processing apparatus through a network, said information processing apparatus comprising: means for storing, in said storage unit at any of a plurality of optional times during operation of said processing unit and said display unit respectively, a set of information representing at least an intermediate work state of said processing unit and an intermediate work state of said display unit and information on a connection state with said network in said storage unit; means for releasing the connection with said network when said information is stored in said storage unit if said information processing apparatus is logically connected to said another information processing apparatus through said network; and means for recalling said stored information to reproduce said intermediate work state and said connection state.
Claim 49
Dependent Claim
156 words
An information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, and connected to another information processing apparatus through a network, said information processing apparatus comprising: means for storing, in said storage unit at any of a plurality of optional times during operation of said processing unit and said display unit respectively, a set of information representing at least an intermediate work state of said processing unit and an intermediate work state of said display unit and information on a connection state with said network in said storage unit; means for releasing the connection with said network when said information is stored in said storage unit if said information processing apparatus is logically connected to said another information processing apparatus through said network; and means for recalling said stored information to reproduce said intermediate work state and said connection state.
Claim 50
Dependent Claim
186 words
An information processing apparatus having a storage unit, a display unit, a network controller for connecting said information processing apparatus to a network, and a processing unit for executing processing in accordance with programs stored in said storage unit, comprising: means for storing, in said storage unit at any of a plurality of optional times during operation of said processing unit and said display unit respectively, a set of information representing an intermediate work state of said information processing apparatus at least an intermediate work state of said processing unit and a state of said display unit; means for recalling said stored information to reproduce said intermediate work state of said information processing apparatus; means for constantly supplying said network controller with electric power even if said information processing apparatus remains in a power-off state; means for instructing a second power-on state of said information processing apparatus when said network controller receives a frame from said network while said information processing apparatus remains in the power-off state; and means for instructing the power-off state after the lapse of a predetermined time from said second power-on state.
Claim 51
Dependent Claim
186 words
An information processing apparatus having a storage unit, a display unit, a network controller for connecting said information processing apparatus to a network, and a processing unit for executing processing in accordance with programs stored in said storage unit, comprising: means for storing, in said storage unit at any of a plurality of optional times during operation of said processing unit and said display unit respectively, a set of information representing an intermediate work state of said information processing apparatus at least an intermediate work state of said processing unit and a state of said display unit; means for recalling said stored information to reproduce said intermediate work state of said information processing apparatus; means for constantly supplying said network controller with electric power even if said information processing apparatus remains in a power-off state; means for instructing a second power-on state of said information processing apparatus when said network controller receives a frame from said network while said information processing apparatus remains in the power-off state; and means for instructing the power-off state after the lapse of a predetermined time from said second power-on state.
Claim 52
Dependent Claim
49 words
An information processing apparatus according to claim 40, further comprising means for displaying a message to be displayed to the operator when the contents of said frame includes said message, wherein said power-off instructing means does not turn off a power source after the lapse of a necessary time.
Claim 53
Dependent Claim
87 words
An information processing apparatus according to claim 40, further comprising: means for inquiring of the operator, when the contents of said frame includes a message to be displayed to the operator, whether or not said message is to be displayed; and means for displaying said message when the operator instructs for the display of said message in response to the inquiry, wherein if the operator does not instruct for the display of said message within a predetermined time period, power-off is again instructed without displaying said message.
Claim 54
Dependent Claim
173 words
An information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, said information processing apparatus comprising: a timer for detecting the lapse of a specified time; means for storing, in said storage unit at an optional time during operation of said processing unit and said display unit respectively, a set of information representing an intermediate work state of said information processing apparatus including at least an intermediate work state of said processing unit and an intermediate work state of said display unit; means for recalling said stored information to reproduce said intermediate work state of said information processing apparatus; means for constantly supplying said timer with electric power; means for instructing to resume power supply to said information processing apparatus when said information processing apparatus remains in a power-off state, and said timer detects the lapse of the specified time; and means for instructing second power-off when a predetermined time has elapsed from the second power-on state.
Claim 55
Dependent Claim
173 words
An information processing apparatus having a storage unit, a display unit and a processing unit for executing processing in accordance with programs stored in said storage unit, said information processing apparatus comprising: a timer for detecting the lapse of a specified time; means for storing, in said storage unit at an optional time during operation of said processing unit and said display unit respectively, a set of information representing an intermediate work state of said information processing apparatus including at least an intermediate work state of said processing unit and an intermediate work state of said display unit; means for recalling said stored information to reproduce said intermediate work state of said information processing apparatus; means for constantly supplying said timer with electric power; means for instructing to resume power supply to said information processing apparatus when said information processing apparatus remains in a power-off state, and said timer detects the lapse of the specified time; and means for instructing second power-off when a predetermined time has elapsed from the second power-on state.