Fuji Xerox Co., Ltd.

Takeshi Yoneyama

Kazuyuki Oda

Kenji Ikeda

Masahiro Mori

Takayuki Takeuchi

Ichiro Tomikawa

Yousuke Hasegawa

Masahiko Fujii

Tatsuhiro Ishize

Yutaka Nakayama

Akio Fukuyama

Katsushi Amarume

Yosuke Takahashi

Eiichiro Yamaguchi

Takeshi Temmaya

Marina Matsumoto

A paper feed device includes: a tray that holds at least one recording medium; a wall that has a portion in contact with a leading end, in a transport direction, of the recording medium on the tray and is disposed so as to intersect the transport direction; and a transport member that is disposed on the downstream side, in the transport direction, of the wall and transports the recording medium. The wall has an opening/closing member that is capable of being opened and closed to form an opening through which the transport member is extracted toward the tray.

Paper feed device

An image forming apparatus includes: a heating device that heats images that have been formed on a sheet-like recording medium to thereby fix the images to the recording medium; an ejection member that rotates in a forward direction and ejects to the outside the recording medium that has been conveyed from the heating device; a blower member that blows air onto the recording medium conveyed between the heating device and the ejection member; and a controller that controls the blower member such that the blower member operates when a recording page count where images are continuously formed on the recording medium is equal to or greater than a predetermined recording page count.

Image forming apparatus including a blower member and a heating device

A port for replenishing ink on the side of a main ink tank advances and the nose or tip end of a main body of a pipe enters an ink replenishing opening on the side of a sub ink tank. When a valve body in the main body of the pipe and a valve on side of the sub ink tank are pressed with each other, a communicating port is opened by the valve body. When the main body of the pipe is further inserted into the ink replenishing opening, the valve is separated from a projection portion of a gasket, and a space therebetween starts to be widened. At this stage, as a lip portion of the gasket is not in contact with an outer peripheral portion of the main body of the pipe, an ink channel is opened to the atmosphere, the ink which is remained in or adhered to the outer peripheral portion of the main body of the pipe or an inside of the ink replenishing opening is absorbed into the sub ink tank dye ti a negative pressure in the sub ink tank. Namely, the present invention provides an ink replenishing device which can reliably prevent ink dirt from being caused by ink replenishing and an ink jet recording apparatus which is provided with the ink replenishing device.

Ink replenishing device, sub ink tank, and ink jet recording apparatus

Heating elements are driven to continuously perform a dummy jet when the number of accumulated printed sheets reaches a predetermined number that causes the image quality deficiency. The surface temperature of a recording head is increased to T1&deg; C. to boil ink in the individual channel. A bubble attached to the common liquid chamber side edge of the individual channel is spaced from the wall surface to be expanded to be integrated with other bubbles, and then, is discharged from the common liquid chamber to an ink supply chamber by its floating force. The bubble can be removed reliably.

Ink jet recording device and bubble removing method

Growing community of inventors

Kanagawa, Japan

Takeshi Yoneyama