Dainippon Screen Mfg. Co., Ltd.

Dainippon Screen Seizo Kabushiki-kaisha

Yoshihiro Machida

Isamu Itoi

Kozo Inui

Hidekatu Mizukami

Seigo Imai

A printing apparatus including at least one pallet for accommodating an original film and a mask film, at least one pallet for accommodating a spent original film and spent mask film, at least one pallet for accommodating each one of the sizes of the sensitive sheets, a pair of guide rails provided among a pallet for temporarily storing the sensitive sheet, the pallets being movable between a waiting position and a drawn position right above the exposure section provided adjacent to the waiting position by engagement between a pair of guide members mounted on each pallet and the guide rails, a pallet shifting mechanism for the reciprocating movement of each pallet between the waiting position and the drawn position along with the guide rail, and a carrier having suckers mounted on a movable plate thereof and for the reciprocating movement between the waiting position and the drawn position as well as for the vertical movement between a path for the reciprocating movement and an upper side of the exposure section.

Printing apparatus

A contact printer in which, when a spring roller is rolled over a transparent plate on which an original plate and a photosensitive material are laid one on another, a flexible airtight sheet wound round the spring roller is extended to cover the transparent plate. The distance between the transparent plate and the spring roller is gradually reduced as the spring roller is rolled rearwards, so that the distance between the transparent plate and the point of contact of the airtight sheet to its own rolled part wound round the spring roller is maintained substantially to a fixed value, thereby contacting the original plate and the photosensitive material onto the transparent plate tightly. A squeeze roller may be provided for squeezing air from a space between the transparent plate and the airtight sheet by rolling thereon. A lower step on which the spring roller and the squeeze roller may be held when the printer is not used, can be formed in the front top end of a frame body.

Growing community of inventors

Joyo, Japan

Yoshihiro Machida