Canon RC1-3090-000 is a stopper for a bushing arm, identified by its exact part number in Canon printer parts listings. It is listed as an internal component, making it a replacement part for servicing the printer assembly where this stopper is specified.
The catalog lists the part for Canon LBP3500, LBP3900 and LBP3950 printers. This identification helps distinguish it from other printer stoppers and bushing components. The listing does not provide dimensions or material details.