04535339 is referenced by 25 patents and cites 2 patents.

The velocity of flying charged ink drops is detected and the ink pressure is so controlled as to make the ink velocity coincide with a predetermined target velocity. A gutter for catching non-printing ink drops is made of a conductive material, while a charge detector circuit is connected to the gutter to generate a signal indicative of a potential change corresponding to impingement of a charged ink drop on the gutter, thereby detecting the flight of a charged ink drop. The pump pressure is varied in response to a difference between the actual and target velocities so that the ink pressure or velocity is adjusted in arithmetic progression reducing a time period required for the actual velocity to converge to the target.

Title
Deflection control type ink jet recorder
Application Number
6/525390
Publication Number
4535339
Application Date
August 22, 1983
Publication Date
August 13, 1985
Inventor
Hiroshi Yamazaki
Tokyo
JP
Yutaka Ebi
Kawasaki
JP
Tatsuya Furukawa
Yokohama
JP
Masanori Horike
Tokyo
JP
Agent
David G Alexander
Assignee
Ricoh Company
JP
IPC
G01D 15/18
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