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US 2001/0024986 A1Published application
Synchronous drive arrangement for a printer
AssigneeTohoku Ricoh Co., Ltd.
InventorsHisashi Sato, Keiichi Chiba
Life of this patent
Estimating the term…
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AssigneeTohoku Ricoh Co., Ltd.
InventorsHisashi Sato, Keiichi Chiba
Estimating the term…
A synchronous drive arrangement for a printer of the present invention includes a timing belt passed over drive pulleys each being mounted on a particular print drum. The timing belt is made up of two narrow belt parts produced by dividing a single belt. Assuming that the belt parts have n teeth each, one of the belt parts is shifted from the other belt part by one-half of the number of teeth n. The belt parts are so positioned as to cancel each other's eccentricity component during rotation. The arrangement reduces synchronization errors ascribable to the eccentricity of the timing belt while preserving the low-cost configuration of timing belt connection.
A synchronous drive arrangement comprising:
A method of causing a drive member and a driven member spaced from each other to rotate in synchronism with each other via a timing belt passed over said drive member and said driven member, said timing belt comprises a plurality of narrow belt parts arranged side by side in an axial direction of said drive member or said driven member and so positioned as to cancel each other's eccentricity component during rotation.
Dependencies are inferred from the claim text.