Oblon, McClelland, Maier & Neustadt, L.L.P.
Developer container, developing device, process unit, and image forming apparatus
A removable device to be detachably attached to an apparatus main body includes a container body to store developer; a discharge opening to discharge the developer inside the container body; an internal shutter to open and close the discharge opening; an external shutter to open and close the discharge opening, the external shutter being disposed at an outer side with respect to the internal shutter, wherein the internal shutter and the external shutter are configured to be driven separately.
RICOH COMPANY, LTD.
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Naoki Masato Yoshiyuki Shoh Masanari Manabu Tomohiro
Nakatake Tsuji Shimizu Tsuritani Fujita Hamada Kubota