METHOD, MEANS AND APPARATUS FOR CONTROLLING ONE OR A PLURALITY OF ELECTRODES IN PRINTER, POWER SUPPLY MEANS AND APPARATUS IN SAID APPARATUS, AND PRINTER EQUIPPED WITH THE POWER SUPPLY MEANS OR THE APPARATUS

Japanese Patent JP3126914

B2

PROBLEM TO BE SOLVED: To make a printer unit compact by setting respective drive means of electrodes permitting toner particles to pass to a high resistance state while setting the drive means of electrodes obstructing the passage of toner particles to a low resistance state and connecting the respective electrodes connected to the drive means set to the high resistance state to necessary ON potential to obtain drive means capable of being mounted on a carrier.
SOLUTION: An electrode means having apertures at least partially surrounded by electrodes and at least one rear electrode 12 are provided to a toner carrier 10. Toner particles are passed from apertures by setting the electrode means to ON-potential by a drive circuit 19c and prevented from passing toward the rear electrode 12 through the apertures by setting the same to OFF-potential. The drain of a transistor 20 is connected to a ring electrode 16 through a conductor 24 and the conductor 24 is made excitable by a control capacitor 33. When voltage is applied to the ring electrode 16 by the drive circuit 19c, a printing state is obtained.

JPH06305178	IMAGE FORMING DEVICE
JPH04173355	TONER JET IMAGE FORMING DEVICE
JP2601248	[Name of invention] Cable member distribution structure of scanning optical system unit

Benigt Barn
Over Larsson
Pearl crockard

JP2650096A

January 22, 2001

February 14, 1996

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B41J2/385; B41J2/415; G03G15/05; H01L21/8238; H01L27/092; (IPC1-7): B41J2/385; G03G15/05; H01L21/8238; H01L27/092

Masaaki Ogura

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