Recorders – Electric recording – Electrochemical
Patent
1992-04-16
1994-02-08
Miller, Jr., George H.
Recorders
Electric recording
Electrochemical
346108, 346160, G03G 1501, G01D 942, G01D 1514
Patent
active
052852210
ABSTRACT:
An outer peripheral length of an intermediate transfer drum of a color laser beam printer is constituted in which a number of a beam detection signal obtained by one rotation of the transfer drum is formed as an integral number of a face number of a polygon mirror. A passing-through detection means detects the passing-through of a specified position mark on a photosensitive body belt and is provided on the photosensitive body drum at predetermined position. An image data requirement signal generating means controls a generating timing of an image data requirement signal for forming a toner image by the passing-through detection signal. A scanning line at a raster direction based on the beam detection signal after the transfer drum has rotated at one rotation returns and overlapped on a scanning line position formed on the first beam detection signal as a standard. A plural toner images having a different color each are formed on the transfer drum without color offset.
REFERENCES:
patent: 4257053 (1981-03-01), Gilbreath
patent: 5055886 (1991-10-01), Nakatani et al.
patent: 5151717 (1992-09-01), Jamzadeh et al.
patent: 5168290 (1992-12-01), Tanaka et al.
Sasaki Akira
Sumiyoshi Michio
Tadokoro Hiroyuki
Terashima Isamu
Hitachi , Ltd.
Miller Jr. George H.
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