Corona device having a beryllium copper screen

Details Corona device having a beryllium copper screen Corona device having a beryllium copper screen

1987-01-12

1988-12-20

Anderson, Bruce C.

Radiant energy

Corona irradiation

Charging of moving object

250324, 355 3CH, 361229, 361230, H01T 1900, G03G 1502

Patent

active

047926805

ABSTRACT:
A scorotron screen for use in a negative corona scorotron charging device comprises a beryllium copper alloy which reduces the problems associated with parking deletions in elecrophotographic process. The screen is fabricated by stamping from beryllium copper sheet metal. Heating the stamped member to a stress relieving temperature induces a tension on the member which enhances flatness.

REFERENCES:
patent: 2189971 (1940-02-01), Warnecke
patent: 4585320 (1986-04-01), Altavela et al.
patent: 4585322 (1986-04-01), Reale
patent: 4585323 (1986-04-01), Ewing et al.
patent: 4591713 (1986-05-01), Gundlach et al.
"Beryllium Copper"; John T. Richards et al; Materials & Methods Manual; The Brush Beryllium Co., Apr. 1950; pp. 76-90.

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