Exposure device of electrophotographic apparatus with optical path position deciding device

• Main Authors: AKATSU; KAZUHIRO, TAKAHASHI; KUNITOMO, AKAI; MUNEYOSHI, YOKOKAWA; SHUUHO, HIROSE; YOUJI, AITA; SATOSHI, SAWAHATA; SHO, NAKAJIMA; ISAO, OTOME; YUKIO, NEMOTO; SHIGEO, KOMODA; KATSUHITO, KATAOKA; KEIJI, TSUJI; YASUYUKI
• Format: Patent
• Language: English
• Published: 06.10.1998
• Edition: 6
• Subjects: CINEMATOGRAPHY; CORRECTION OF TYPOGRAPHICAL ERRORS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; MAGNETOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

An exposure device of an electrophotographic apparatus which includes a rotary polyhedral mirror for scanning a plurality of laser beams on a photosensitive body, a beam interval adjusting member for adjusting an interval between the laser beams, a rotating mechanism for rotating the beam interval adjusting member, and an optical path position deciding device disposed on the side of the rotary polyhedral mirror in a laser beam advancing direction at the time of adjustment of the laser beam interval, the beam interval adjusting member being rotated so that the optical paths of the laser beams are decided by the optical path position deciding device. The optical path position deciding device may include a plate-like member with boresights or a CCD sensor and a CRT display.