Xerox Corporation

James R Norton

Robert Paul Herloski

Ronald L Antos

A raster scanner with laser for generating a scanning beam and compact, folded optical system for transmitting the beam to the object to be scanned. The optical system includes a modulator for modulating the beam in accordance with video image signals and a rotatable polygon for scanning the beam across the object to be scanned. The laser is supported at one end in a spherical bearing, permitting rotation of the laser about a point coincident with the optical axis of the scanner and at a second remote end by screw type adjustors which are used to adjustably displace the laser about the pivot point and so align the axis of the laser beam with the optical axis of the scanner. Scanner operating circuits are provided including a circuit enabling one or both of the scan detectors to serve as a light meter when aligning the laser.

Field replaceable laser apparatus for raster scanner

An electrostatographic processor having a rotatably driven drum for advancing an imaging surface through successive processing stations, a development system charged with a ferromagnetic developer for developing latent electrostatic images carried by the imaging surface, and a cleaning system including a sump for collecting residual toner removed from the imaging surface is equipped with a toner reclaim system comprising a plurality of permanent magnets which are mounted at spaced apart intervals on one end of the drum to magnetically convey developer from the development system to the cleaning system sump via one non-magnetic conduit and from the cleaning system sump back into the development system via another non-magnetic conduit. The developer blends with the residual toner while passing through the sump of the cleaning system, with the result that its toner concentration tends to increase, thereby causing residual toner to be mechanically and triboelectrically returned to the development system.

Growing community of inventors

Walworth, NY, United States of America

James R Norton