Abstract: An image forming apparatus management system for setting various parameters of the image forming apparatus according to a job instruction from the client machine 2 comprises a host server 4 equipped with an external database 5 for storing various parameters of the image forming apparatus 1 corresponding to the predetermined job conditions, said host server retrieving various parameters satisfying the job conditions from the external database 5 according to the external parameter request and delivering the parameters, and a client server 3 connected to said host server 4 in a bidirectionally communicable way, said client server associated with communications between said client machine 2 and the image forming apparatus 1 and making an external parameter request to the host server 4 as well as supplying various parameters delivered from the host server 4 to the image forming apparatus 1.

Abstract: A sheet transport apparatus comprises a predetermined number of transport members 2 disposed in a sheet transport passage 1. At least a part of the transport members 2 is a multi-direction transport member 4 for variably setting the transport direction of a sheet 3 to a plurality of directions. To perform direction switch control of the multi-direction transport member 4, the sheet transport apparatus comprises a transport direction switch unit 8 that can switch the transport direction of the sheet 3 by the multi-direction transport member 4 at a predetermined timing. Alternatively, the sheet transport apparatus comprises a guide member 9 for regulating a side position of the sheet 3.

Abstract: A sheet transport apparatus comprises a predetermined number of transport members 2 disposed in a sheet transport passage 1. At least a part of the transport members 2 is a multi-direction transport member 4 for variably setting the transport direction of a sheet 3 to a plurality of directions. To perform direction switch control of the multi-direction transport member 4, the sheet transport apparatus comprises a transport direction switch unit 8 that can switch the transport direction of the sheet 3 by the multi-direction transport member 4 at a predetermined timing. Alternatively, the sheet transport apparatus comprises a guide member 9 for regulating a side position of the sheet 3.

Abstract: An image forming apparatus management system for setting various parameters of the image forming apparatus according to a job instruction from the client machine 2 comprises a host server 4 equipped with an external database 5 for storing various parameters of the image forming apparatus 1 corresponding to the predetermined job conditions, said host server retrieving various parameters satisfying the job conditions from the external database 5 according to the external parameter request and delivering the parameters, and a client server 3 connected to said host server 4 in a bidirectionally communicable way, said client server associated with communications between said client machine 2 and the image forming apparatus 1 and making an external parameter request to the host server 4 as well as supplying various parameters delivered from the host server 4 to the image forming apparatus 1.

Abstract: To make it possible to transfer an image to an exact position even on a sheet of a maximum size having cutoff margins around a maximum image area of the image-forming module, the invention provides a sheet transport device (5) comprising a registration/transport member (2) provided in a sheet path upstream of a target location (P) for correctly positioning a sheet (1) in a sheet transport direction and transporting it toward the target location (P), and a sheet alignment mechanism (3) provided in the sheet path upstream of the target location (P) for moving the sheet (1) in a direction perpendicular to the sheet transport direction to align the sheet (1) to a reference position predefined for each set of sheet information. The invention also provides an image-forming apparatus incorporating the sheet transport device (5).

Abstract: A sheet registration device includes: sheet transporting means for transporting a sheet in a transport direction thereof; a sheet positioning member which is disposed in a side of a sheet transport path and in parallel with the transport direction; lateral moving means for moving a sheet transported a long the sheet transport path, toward the sheet positioning member; detecting means for detecting a side edge of the sheet transported along the sheet transport path; moving means for moving the sheet transporting means in a direction perpendicular to the transport direction, the sheet transporting means being disposed downstream from the lateral moving means; and controlling means for, on the basis of a detection result of the detecting means, controlling a movement operation of the sheet transporting means by the moving means.

Abstract: An image formation system includes: a paper transport unit transporting paper along a paper transport passage; an image formation unit forming an image on an image carry belt; an image sense unit sensing a position of the image formed on the image carry belt; a transfer unit transferring the image formed on the image carry belt to the paper transported by the paper transport unit; a paper passage sense unit sensing paper passage on the paper transport passage, the paper passage sense unit being disposed upstream from a position where the image is transferred by the transfer unit; and a control unit controlling paper transport speed of the paper transport unit based on the sense results of the image sense unit and the paper passage sense unit.

Abstract: An image forming apparatus includes an image transfer unit disposed along a sheet feed path. A sheet feed roller feeds a sheet toward an image transfer position where an image can be transferred by the image transfer unit. A sheet detect unit detects the sheet fed by the sheet feed roller and a control unit controls the rotational operation of the sheet feed roller in accordance with a detection result of the sheet detect unit. As such, a sheet feed path length, which extends between the image transfer position and a detection position where the sheet is detected by the sheet detect unit, is set at an integer multiple of a circumferential length of the sheet feed roller.