摘要:
An ink jet printing method and an ink jet printing apparatus are provided which minimize an area to be printed that overruns from edge portions of the print medium, even for an irregular-shaped print medium. The printing apparatus has an overrunning ink reception opening formed in the platen as a notched portion to accommodate ink ejected beyond the edges of the print medium. When the edge portions of an irregular-shaped print medium are to be printed, a control is made to accommodate almost all volume of ink ejected beyond the edge portions is accommodated in the overrunning ink reception opening. With this arrangement the amount of ink ejected from the edge portions of even the irregular-shaped print medium can be adjusted so that the interior of the platen and printing apparatus can be prevented from being contaminated and a wasteful ink consumption minimized, thus realizing a satisfactory “marginless printing.”
摘要:
In an ink jet recording apparatus having a recording head, a cap for enclosing the ink discharge port is made of elastic material and is connected via a tube to a pump or waste ink treating member. The cap and tube are guided so that they may move in forward and backward directions with respect to the recording head; deformation of the cap and tube in other directions is prevented.
摘要:
An ink jet recording device includes a recording head unit having discharge ports for discharging ink, ink channels communicating to the discharge ports and leading the ink thereto, and an ink tank unit for storing ink to be supplied to the recording head unit. The recording head unit consists of a device for storing parameter information concerning the ink discharge characteristics, and a protective member disposed on a side face area adjacent to the discharge port formation face for preventing the ink from flowing around.
摘要:
A recording apparatus comprising a platen for supporting a sheet at a recording area, feeding means for feeding the sheet to the platen, recording means for recording an image on the sheet at the recording area, and an urging member disposed at a downstream side of the recording area and adapted to urge the sheet against the platen. The urging member has an urging surface for urging the sheet against the platen when the recording means is recording the image on the sheet.
摘要:
A sheet transport apparatus includes a device for generating an electrostatic attraction force for attracting a sheet member to a surface of a transport belt disposed close to another surface of the transport belt opposite to the surface that contacts the sheet member. The apparatus is arranged to reduce a drive load on the transport belt caused by the electrostatic attraction force. To achieve this effect, at least one of a surface of the electrostatic attraction force generating device contacting the transport belt and a surface of the transport belt contacting the electrostatic attraction force generating device is roughened. Alternatively, an electrostatic attraction force generated at at least one particular portion of the transport belt by the electrostatic attraction force generating device is smaller than an electrostatic attraction force generated at another portion of the transport belt.
摘要:
An ejection recovering unit includes tube pumps which generate pressure for performing ink enforced discharge of ink jet heads by sequentially deforming flexible tubes under pressure. Pressing rollers are spring biased toward a direction of preliminary pressurizing a spring for sequentially pressure deformation of tubes. This suppresses an increase in drive torque due to dispersion of accuracy of tubes, pressing rollers and mounting parts thereof. A guide is provided to place the corresponding roller in a state corresponding to a pressurizing state before the guide presses the corresponding tube. This prevents any change in torque due to sudden production of the pressurizing state.
摘要:
A recording apparatus includes a carriage carrying a recording head and being movably supported, the recording head being configured to eject liquid onto a recording medium, a plurality of driven units to be driven by a drive source that generates a driving force, a transmission-switching mechanism configured to switch between the driven units, a carriage locker configured to prevent and allow movement of the carriage, and a transmission-switching locker configured to prevent and allow switching between the driven units. Movement prevention by the carriage locker and switching prevention by the transmission-switching locker are in synchronicity, and movement allowance by the carriage locker and switching allowance by the transmission-switching locker are in synchronicity.
摘要:
A recording apparatus includes a cassette having a stacking region for stacking recording materials mounted to main assembly of the recording apparatus; a feeder for feeding the recording material stacked to the cassette; a sheet discharge portion for sheet discharging the recording material having been subjected to a recording operation; a tray movable between a first position where the recording material is incapable of being discharged from the sheet discharge portion and a second position where the recording material is capable of being discharged from a main assembly of the recording apparatus; a holding portion, disposed on the tray, for holding the recording material discharged when the tray is at the second position; an auxiliary portion disposed on the tray and capable of stacking the recording material with the stacking region when the tray is at the second position.
摘要:
A recording apparatus includes a carriage carrying a recording head and being movably supported, the recording head being configured to eject liquid onto a recording medium, a plurality of driven units to be driven by a drive source that generates a driving force, a transmission-switching mechanism configured to switch between the driven units, a carriage locker configured to prevent and allow movement of the carriage, and a transmission-switching locker configured to prevent and allow switching between the driven units. Movement prevention by the carriage locker and switching prevention by the transmission-switching locker are in synchronicity, and movement allowance by the carriage locker and switching allowance by the transmission-switching locker are in synchronicity.
摘要:
A recording apparatus includes a platen that guides a sheet, restraining members disposed on the platen at respective side edges of the sheet to restrain the side edges of the sheet from being raised, a sheet width detector that detects the width of the sheet, and a restraining member detector that detects the positions of the restraining members. At least one of the restraining members is moved in accordance with the information obtained by the sheet width detector regarding the positions of the side edges of the sheet and the information obtained by the restraining position detector regarding the positions of the restraining members.