Abstract: In an image forming apparatus, when a plurality of events are detected within a predetermined period of time, event relevant information is not transmitted for all of the detected events and the same event ID is set for event information so that event relevant information which is transmitted at least once can be associated with the plurality of events. In a management apparatus, the event information and the event relevant information which have the same event ID are managed in association with each other.

Abstract: A management system includes an image forming apparatus that manages a phenomenon having occurred in the image forming apparatus as history information, inquires a management apparatus about status information indicating whether the management apparatus is ready for a remote operation of the image forming apparatus, receives the status information relating to the image forming apparatus, from the management apparatus, as a response to an inquiry, enables a function for starting connection to the management apparatus for communication if the managed history information includes an unprocessed phenomenon and the status information transmitted from the management apparatus indicates that the management apparatus is ready for the remote operation, and causes the image forming apparatus to start the connection to the management apparatus for communication in response to a user's operation to execute the enabled function.

Abstract: A management system includes an image forming apparatus that manages a phenomenon having occurred in the image forming apparatus as history information, inquires a management apparatus about status information indicating whether the management apparatus is ready for a remote operation of the image forming apparatus, receives the status information relating to the image forming apparatus, from the management apparatus, as a response to an inquiry, enables a function for starting connection to the management apparatus for communication if the managed history information includes an unprocessed phenomenon and the status information transmitted from the management apparatus indicates that the management apparatus is ready for the remote operation, and causes the image forming apparatus to start the connection to the management apparatus for communication in response to a user's operation to execute the enabled function.

Abstract: In an image forming apparatus, when a plurality of events are detected within a predetermined period of time, event relevant information is not transmitted for all of the detected events and the same event ID is set for event information so that event relevant information which is transmitted at least once can be associated with the plurality of events. In a management apparatus, the event information and the event relevant information which have the same event ID are managed in association with each other.

Abstract: A hydrogen-storage alloy containing as a component element thereof an element easily reactive with hydrogen to be selected from among the elements of Group 1A, Group 1A, Group 3A, Group 4A, and Group 4A in the Periodic Table of the Elements and having a quasi-crystalline phase as at least part of the component phases thereof. The quasi-crystalline phase has an element of axial rotation selected from among 5-fold, 8-fold, 10-fold, and 12-fold symmetric axis. The hydrogen-storage alloy exhibits outstanding resistance to corrosion, permits effective prevention of comminution, and further excels in terms of the abundance of hydrogen to be absorbed and released.

Abstract: A magnetic core is obtained by winding or laminating at least one alloy ribbon and has excellent squareness characteristic and magnetic saturation characteristic in a high frequency region wherein the squareness ratio of the magnetic core is improved by restricting the surface roughness of the alloy ribbon to specific regions.

Abstract: A magnetic core is obtained by winding or laminating at least one alloy ribbon and has excellent squareness characteristic and magnetic saturation characteristic in a high frequency region wherein the squareness ratio of the magnetic core is improved by restricting the surface roughness of the alloy ribbon to specific regions.

Abstract: An Fe-based soft magnetic alloy is consisted essentially of fine crystal grains constituting 50% or more of the alloy structure by area %. The Fe-based soft magnetic alloy has the composition substantially represented by the general formula: Fe.sub.100-a-b-c-d-e-f X.sub.a M.sub.b M'.sub.c A.sub.d Si.sub.e Z.sub.f (wherein X is at least one compound selected from the ceramic materials fusible when the composition is fused and rapidly quenched to form a rapidly cooled alloy, M is at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W, M' is at least one element selected from the group consisting of Mn, elements in the platinum group, Ag, Au, Zn, Al, Ga, In, Sn, Cu and rare each elements, A is at least one element selected from among Co and Ni, Z is at least one element selected from the group consisting of B, C, P and Ge. Said a, b, c, d, e and f respectively satisfy 0.1.ltoreq.a.ltoreq.5, 0.1.ltoreq.b.ltoreq.10, 0.ltoreq.c.ltoreq.10, 0.ltoreq.d.ltoreq.40, 5.ltoreq.e.

Abstract: An Fe-based soft magnetic alloy essentially consisting of an Fe-based alloy including fine crystal grains used for such as a magnetic core. An average size of the fine crystal grains is controlled to 300.ANG. or less. Each of the fine crystal grains is composed of a body-centered cubic phase at least partially including a super lattice. This alloy has a high saturation flux density and excellent soft magnetic characteristics such as a low iron loss and a high magnetic permeability. This alloy is suitable as a core material for various kinds of choke coils.

Abstract: An Fe-based soft magnetic alloy essentially consisting of an Fe-based alloy including fine crystal grains used for such as a magnetic core. An average size of the fine crystal grains is controlled to 300 .ANG. or less. Each of the fine crystal grains is composed of a body-centered cubic phase at least partially including a super lattice. This alloy has a high saturation flux density and excellent soft magnetic characteristics such as a low iron loss and a high magnetic permeability.