Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2011-01-18
2011-01-18
Pham, Hai C (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S256000
Reexamination Certificate
active
07872664
ABSTRACT:
An optical scanning device, that outputs a light beam through an emission window in an optical housing to scan a surface, may include a shutter member that closes or opens the emission window. The shutter member may include a first opening, that may allow the light beam passed through the emission window to pass the first opening, and a second opening, that may be at a position corresponding to an insertion operation of a cleaning member for cleaning the emission window. The shutter member may include a first opening, that may be on a front surface of the shutter member to allow the light beam passed through the emission window to pass the first opening, and a second opening, that may be on a side surface of the shutter member to allow a cleaning member to be inserted through the second opening for cleaning the emission window.
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Namba Masanori
Shoji Katsunori
Yamakawa Takeshi
Yoshizawa Hiroshi
Harness & Dickey & Pierce P.L.C.
Pham Hai C
Ricoh Company Limited
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