Humidity measurement device and image forming apparatus having t

Details Humidity measurement device and image forming apparatus having t Humidity measurement device and image forming apparatus having t

1990-06-05

1991-07-23

Moses, R. L.

Photocopying

Contact printing

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355214, 355216, 355225, 355326, G03G 1502, G03G 1501

Patent

active

050347721

ABSTRACT:
An image forming apparatus includes an image forming unit for forming an image on a photosensitive drum, a surface potential measurement device for detecting a surface state of the photosensitive drum, a control for optimizing an operating condition of the image forming unit in accordance with a detection value from the surface potential measurement device and a target value, and a temperature/humidity (T.H.) measurement device for detecting an atmospheric condition within the image forming apparatus. The control selects the target value in accordance with a detection value from the T.H. measurement device.

REFERENCES:
patent: 4573788 (1986-03-01), Nagashima et al.
patent: 4736223 (1988-04-01), Suzuki
patent: 4888618 (1989-12-01), Ishikawa

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