Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Developing device, process cartridge and image forming apparatus
In accordance with the present invention, a transparent or semitransparent window is formed in a developing device or a process cartridge to allow one to see the inside of the developing device via the window from the outside. The window may preferably be formed in the top wall of the developing unit or that of the process cartridge.
Ricoh Company, Ltd.
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inventional additional inventional
Hiroshi Yasuhisa
Yoshizawa Ehara