Patent Number: 8,585,168

Title: Discharge energy recovery device and image forming apparatus using same

Abstract: A discharge energy recovery device to recover discharge energy discharged from a piezoelectric element when the piezoelectric element is driven includes a drive voltage generator to generate a voltage to drive the piezoelectric element; a discharge voltage monitoring unit to monitor a voltage discharged from the piezoelectric element when the piezoelectric element is driven; a first current supplier to supply a current energy to operate a first load circuit when the discharged voltage is equal to or greater than a first voltage that enables driving of the first load circuit, and a second current supplier to supply a current energy to operate a second load circuit when the discharged voltage is less than the first voltage and equal to or greater than a second voltage that enables driving of the second load circuit by monitoring the currently discharged voltage using the discharge voltage monitoring unit.

Inventors: Iijima; Hideaki (Kanagawa, JP)

Assignee: Ricoh Company, Ltd.

International Classification: B41J 29/38 (20060101); H01L 41/107 (20060101)

Expiration Date: 1/19/12018