Canon Kabushiki Kaisha

Hisashi Sakata

Keisuke Yamamoto

Akihiko Yamano

Tamaki Kobayashi

Shuji Aoki

Hideshi Kawasaki

Izumi Tabata

An effective voltage V' effectively applied to a gapduring an 'activation step' is controlled to a desired value. In the 'activation step', a voltage is repeatedly applied between a first electroconductive filmand a second electroconductive filmwhile controlling voltages outputted from a voltage sourceso that a value &#x3b2;becomes a desired value.

Method of manufacturing electron-emitting device, electron source using electron-emitting device, method of manufacturing image display apparatus, and information display reproduction apparatus using image display apparatus manufactured by the method

The present invention relates to the adjustment of luminance. The present invention is a method of manufacturing image forming apparatus including a step of applying characteristic shift voltage comprising a plurality of pulses in which the amplitude of the pulse obtained from the look-up table has two or more values, to the emitter, the look-up table storing the amplitude of the pulse and the number of the pulse for shifting characteristic of emitters to a predetermined luminance target value on the basis of the measurement result of the luminance. Moreover, the present invention is a method of manufacturing image forming apparatus comprising a step of applying the second pulses of characteristic shift voltage having the amplitude which was determined in response to the measurement result of the luminance after the first characteristic shift voltage had been applied to the emitter.

Method of manufacturing image forming apparatus

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Atsugi, Japan

Hisashi Sakata