Noritsu Koki Co., Ltd.

Kazunobu Shima

Hidetoshi Nishikawa

Masazumi Ishikawa

Yuji Yamamoto

Masasuke Funase

Kazuo Nagaosa

Masanori Inoshita

Masaki Nakamoto

Toshihiro Matsuoka

Kiyotaka Arai

A heat fixing apparatus has a heating unit for heating a recording medium having a substrate, a fixing layer and a surface layer so as to sublimate sublimating ink applied in advance to the surface layer for transferring the sublimated ink to the fixing layer. The heating unit includes a heating transporting mechanism for transporting the recording medium within a heating space, a heater body for heating air, and a blower mechanism for supplying hot air heated by the heater body to the recording medium being transported by the heating transporting mechanism. The apparatus further includes a flat guide member for coming into contact with the surface of the recording medium being transported by the heating transporting mechanism and a heater for heating the guide member.

Heat fixing apparatus for sublimating and fixing sublimating ink to recording medium

An image forming apparatus for forming an image on a recording medium by heating the medium having ink applied to its surface layer by a heater device, thereby to fix the ink applied to the surface layer to a fixing layer of the recording medium. A heating controlling section () for controlling the heater device () includes a fixing behavior evaluating means () for evaluating a fixing behavior of the ink to the fixing layer and then outputting a control amount to the heating controlling section () for controlling the heater device (). The fixing behavior evaluating means () includes such functions as a sublimation degree evaluating function for evaluating a sublimation degree of the ink in the recording medium (), a function for evaluating surface temperature distribution of the recording medium or a transferred energy evaluating function for evaluating transferred energy received by each area of the recording medium ().

Image forming apparatus

An image forming apparatus includes a printing unit having a print head for applying ink to a surface layer of a recording medium transported thereto; a loop-forming unit capable of temporarily storing the recording medium discharged from the printing unit; and a heating unit for heating the recording medium fed from the loop-forming unit for fixing the ink applied to the surface layer onto its fixing layer. The heating unit includes a preliminary heating subunit for heating the recording medium from a normal temperature level to a ink fixing temperature level, a main heating unit for heating the recording medium at the ink fixing temperature level and a slow cooling subunit for slowly cooling the recording medium to the normal temperature level.

An image forming apparatus fixes, by heating, an image formed on a sheet-like recording medium thereto with sublimating ink. The apparatus includes a heating fixing unit for receiving and heating the recording medium and then discharging the heat-fixed recording medium, the heating fixing unit including a heating space for heating the recording medium and a transporting mechanism for transporting the medium in the heating space. The apparatus further includes a smoothing-out mechanism for discharging the recording medium from the heating space while smoothing out or flattening the recording medium.

A photographic printing apparatus includes a pause transfer device disposed on a transfer passage between a printing station and a development station for holding temporarily an excess of printed sheets of a photosensitive material over that which can be handled by the development station and for transferring printed sheets of the photosensitive material to the development station one after another depending on the developing process.

Photographic printing apparatus

A photo-developing apparatus comprises direction switching means in a transfer passage shifting a sheet paper to a developing unit from a printing unit and is disposed for rotating the sheet paper sent from the printing unit to change its direction within the range from 70 degree to 110 degree or from 250 degree to 290 degree.

Growing community of inventors

Wakayama, Japan

Kazunobu Shima