摘要:
A sheet supply apparatus according to the present invention has a pawl separator for separating sheets one by one by regulating the tip ends and upper surfaces of tip end portions of the sheets, which pawl separator can be retarded from a sheet regulating position when it is urged by the sheet with a predetermined force. With this arrangement, sheets having small resiliency such as plain sheets are separated one by one by successively riding over the pawl separator, and sheets having great resiliency such as post cards and envelopes urge the pawl separator to a retracted position to pass through the pawl separator and are separated one by one by of another separation.
摘要:
An ink refilling system includes an ink jet recording apparatus, in which a cartridge with an ink containing portion can be installed. The ink jet recording apparatus includes a driver for driving a conveyer for conveying a recording medium, and a first transmitter for transmitting the driving force from the driver out of the ink jet recording apparatus. Also provided is an ink filling apparatus for filling the ink into the cartridge, the ink filling apparatus including: an ink storing portion for storing the ink to be filled into the cartridge; a connector for injecting the ink from the ink storing portion to the cartridge; a pressure-feeding device for pressure-feeding the ink through the connector; and a second transmitter for transmitting the driving force to drive the pressure-feeding device. The driving force from the driver of the ink jet recording apparatus is transmitted to the pressure-feeding device through the first and second driving force transmitters.
摘要:
A device for controlling the power supplied to windings of a stepping motor includes a pulse generator for splitting one step drive period of the motor into a plurality of sections, the number of sections and increasing or decreasing depending upon the drive frequency. The pulse generator, also sets the duty cycle of a pulse applied to the motor. The device also includes a stepping motor drive circuit for exciting each phase of the motor with a current determined by the duty cycle of pulse, and a duty changing device for changing the duty cycle for each of plural sections in one excitation phase of the stepping motor, wherein a current wave input into the motor can be maintained as a sinusoidal wave from low-speed rotation to high-speed rotation of the motor by changing the number of sections in excitation depending upon serial drive operations, thereby achieving motor control with less rotation inconsistencies and less noise.
摘要:
A recording apparatus comprises a head for forming an image on a recording medium or for reading an image formed on a recording medium; a supporting member for holding the head; a first unit for electrical connection provided for the head; a second unit for electrical connection provided for the supporting member, which can be electrically connected to the first unit for electrical connection; and a member for deelectrifying static electricity, which is provided for the supporting member in the vicinity of the second unit for electrical connection. This deelectrifying member prevents static electricity from flowing into the signal lines provided for the second unit for electrical connection when the supporting member is actuated to hold the head.
摘要:
The present invention provides a recording apparatus comprising a supply means for supplying a sheet in a predetermined direction, a convey means for conveying the sheet supplied by the supply means in a predetermined direction, a recording means for recording an image on the sheet conveyed by the convey means, in response to image information, a reversible drive means for driving the supply means and the convey means, and a drive transmitting means for transmitting a driving force from the drive means to the supply means or the convey means, and wherein the drive transmitting means comprises a plurality of planetary gears as means for rotating the supply means only in a sheet supplying direction regardless of a rotational direction of the convey means, and the planetary gears are revolved around gears having different speed reduction ratios from the drive means as sun gears, respectively. The present invention also provides a sheet supplying apparatus and a drive transmitting mechanism used with such a recording apparatus.
摘要:
In a recording apparatus, the size and the weight of the apparatus and the number of components are reduced, accumulated tolerance is reduced due to the decrease in the number of components, and the sheet feeding/discharging property, the conveying property, the adjustability of the distance between recording means and a sheet member, and the assembling capability of the apparatus are improved. The apparatus includes a first roller for conveying the sheet member toward a supporting surface, a second roller for grasping the sheet member together with the first roller, a third roller for discharging the sheet member from the supporting surface, and a fourth roller for grasping the sheet member together with the third roller. The apparatus also includes a first case including a carriage, the first roller and the third roller, and a second case including a platen, the second roller and the fourth roller. The second roller is elastically urged toward the first roller, and the fourth roller is elastically urged toward the third roller.
摘要:
An ink container for containing ink to be supplied to an ink jet head to which the ink container is detachably mountable, inclues an ink supply port for supplying the ink to the ink jet head; an air vent for fluid communication with ambience; a claw-like projection provided on a first side of the ink container; a latching lever provided on a second side opposite from the ink container, the latching lever being resiliently supported on the ink container and having a latching claw.
摘要:
Provided is a sheet supply apparatus with a sheet support for supporting sheets, a sheet supply roller for feeding out the sheet supported by the sheet support, and a separating unit against which the sheet fed by the sheet supply roller abuts to cause elastic angular displacement of the sheet and adapted to permit the separation of the sheet when the sheet rides over the separating unit. The separating unit is formed from a thin plated-shaped member which includes at least one aperture or one notch.
摘要:
A sheet supply apparatus includes a sheet supporting device for supporting sheets, a sheet supply for positively contacting the sheet supported by the sheet supporting device and for feeding out the sheet, a release mechanism for releasing contact between the sheet supply and the sheet, a separation device for separating the sheets fed by the sheet supply one by one, a pair of convey rotary devices for conveying the separated sheet, and a controller. The controller effects control such that, after the sheet separated by the separation device is conveyed by a predetermined amount by the convey rotary devices, in a condition that the contact between the sheet supply and the sheet is released by the release mechanism, the sheet is conveyed in a reverse direction by the convey rotary devices until a tip end of the sheet leaves a nip of the convey rotary devices, and then the sheet is sent toward the nip of the convey rotary devices by the sheet supply to urge the tip end of the sheet against the nip of the convey rotary devices, which are now rotated in a reverse direction.
摘要:
An ink container for containing ink to be supplied to an ink jet head to which the ink container is detachably mountable, includes an ink supply port for supplying the ink to the ink jet head; a air vent for fluid communication with ambience; a claw-like projection provided on a first side of the ink container; a latching lever provided on a second side opposite from the ink container, the latching lever being resiliently supported on the ink container and having a latching claw.