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    12.
    发明专利
    未知

    公开(公告)号：DE2362314A1

    公开(公告)日：1974-09-19

    申请号：DE2362314

    申请日：1973-12-14

    Applicant: MITA INDUSTRIAL CO LTD

    Inventor： WASHIO TAKAJI ,  NAKAJIMA TADANOBU ,  MIYOSHI HIDEO ,  YOSHIOKA MASAHIRO ,  AIZAWA TATSUO

    IPC: G03B27/26 ,  G03B27/22 ,  G03D7/00 ,  G03B27/30

    Abstract: A copying machine of the diazo type comprises a light exposure zone for exposing to light a diazo type photosensitive sheet superposed with an original, a development zone for developing the light exposed photosensitive sheet and a delivery mechanism for feeding the original and diazo type photosensitive sheet to the light exposure zone and forwarding the light exposed photosensitive sheet to the development zone. The light exposure zone includes a transparent cylinder capable of rotating while having a superposed assembly of the original and photosensitive sheet closely contacting the outer surface thereof and a heat-generating light source mounted in the interior of the transparent cylinder. The transparent cylinder has a fan for feeding cold air into the transparent cylinder from one end thereof and cooling the outer surface of the transparent cylinder substantially uniformly along the entire length thereof and a temperature-detecting mechanism thermoconductively contacting the outer surface of the transparent cylinder to detect the temperature of the outer surface. A temperature-controlling mechanism is provided to control the air feed rate of the fan in response to signals from the temperature detecting mechanism, to control the temperature of the outer surface of the transparent cylinder within a predetermined temperature range.

    13.
    发明专利
    未知

    公开(公告)号：DE3028527A1

    公开(公告)日：1981-02-05

    申请号：DE3028527

    申请日：1980-07-28

    Applicant: MITA INDUSTRIAL CO LTD

    Inventor： WASHIO TAKAJI ,  KAI MASAMI

    IPC: G03G15/04 ,  G03G15/043 ,  G03G21/00

    Abstract: An exposure adjustment device for an electrostatic copying apparatus provides that electric power of an exposure lamp is controlled by pressing a key so as to cause copy density over a surface of a photoconductive member to be adjusted. The exposure lamp is energized electrically subsequent to change a of copy density from a set level to a standard level predetermined for obtaining an ordinary copy when a period predetermined by a timer elapses after copying operation finished and/or after the key is operated. This results in that the copy density of exposure is accomplished properly even if an operator forgets to adjust the copy density of exposure.

    14.
    发明专利
    未知

    公开(公告)号：DE2434428A1

    公开(公告)日：1975-02-06

    申请号：DE2434428

    申请日：1974-07-17

    Applicant: MITA INDUSTRIAL CO LTD

    Inventor： WASHIO TAKAJI ,  SASAKI KOICHI ,  IIDA KAZUMI ,  ISEKI MASAHIDE ,  AIZAWA TATSUO

    IPC: G03B27/72 ,  G03G15/01 ,  G03G15/22 ,  G03G15/28 ,  H04N1/60

    Abstract: 1447925 Electro-photography MITA INDUSTRIAL CO Ltd 15 July 1974 [17 July 1973] 31311/74 Heading G2H An electro-photographic copier includes sheetdiverting means 60 by which latent image bearing copy sheets 2, which either are photo-conductive or have received electrostatic latent images from a photo-conductive member, may be diverted through alternative developing apparatus. By the use of three colours of developer and a black, together with a set of colour-separation filters, sheetrecirculation means and a programme control which can be varied, the same apparatus can be used to produce black monochrome copies, colour copies, colour monochrome copies, colour separations and false-colour effects.

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