Printhead carriage movement triggering system for sheet conveyance in a recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTetsuo Suzuki, Tamaki Hashimoto, Takao Aichi
Life of this patent
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Abstract
A recording apparatus for performing a recording operation on recording paper includes a recording head for performing the recording operation on the recording paper, a carriage which carries the recording head, and is movable along a convey path of the recording paper, a conveying unit for conveying the recording paper, a drive source, and a lock pawl which is arranged along a moving path of the carriage and can transmit a drive force from the drive source to the conveying unit in accordance with movement of the carriage.
Claims47
An apparatus having a head member for effecting recording on a sheet member conveyed by a conveying device in a predetermined direction, said apparatus comprising:
- a carriage for moving the head member in a direction perpendicular to the predetermined direction;
- a drive source;
- trigger means provided in a moving route of the head member and outside of a recording area, said trigger means allowing a drive force from said drive source to be transmitted to the conveying device in accordance with movement of said carriage for moving the head member outside of the recording area;
- detection means for detecting the sheet member;
- and
- control means for controlling such that said carriage effects actuation of said trigger means plural times so that a drive force of said drive means is transmitted to the conveying device when said detecting means does not detect the sheet member.
A recording apparatus comprising:
- a carriage for carrying a recording head, said carriage being movable along a recording region recordable by said recording head and an extending region continuous with the recording region;
- carriage driving means for driving said carriage;
- paper feed means, having a roller, for feeding a recording medium in a feed path upon rotation of said roller, said roller having a non-rotation state;
- paper feed trigger means provided in a moving route of said recording means and outside of the recording region, and engageable with a portion of said carriage to release said roller from the non-rotation state so as to start a paper feed operation by said paper feed means;
- paper feed detection means for detecting when the recording medium is fed to the feed path;
- and
- paper feed control means for controlling such that said carriage effects actuation of said trigger means plural times so that a drive force of a drive device is transmitted to said paper feed means when said paper feed detection means does not detect the recording medium.
A recording apparatus for recording on a sheet member conveyed by a conveying mechanism, said apparatus comprising:
- a carriage;
- trigger means for transmitting a drive force to said conveying mechanism so as to convey the sheet member in accordance with the movement of said carriage;
- detection means for detecting the sheet member;
- and
- control means for controlling the movement of said carriage to apply a trigger effect to said trigger means when said detection means does not detect the sheet member after applying a previous trigger effect to said trigger means so as to-convey the sheet member in response to the movement of said carriage.
A sheet member conveying trigger method for applying a trigger effect to a trigger portion in response to movement of a carriage, for conveying a sheet member, said method comprising the steps of:
- detecting movement of the sheet member after applying a trigger effect to the trigger portion in response to movement of the carriage, for conveying the sheet member;
- and
- applying a subsequent trigger effect to the trigger portion by moving the carriage when said detecting step does not detect the movement of the sheet member after applying the trigger effect.
A recording apparatus for recording on a sheet member conveyed by a conveying mechanism, said recording apparatus comprising:
- a carriage;
- trigger means for applying a trigger for transmitting a drive force to the conveying mechanism so as to convey the sheet member in accordance with movement of said carriage;
- detection means for detecting the sheet member provided in a predetermined region;
- and
- control means for outputting a signal for conveying the sheet member to the conveying mechanism in such a case that said detection means does not detect the sheet member after said trigger means applies a previous trigger to the conveying mechanism so as to convey the sheet member in accordance with the movement of said carriage.
A recording apparatus for recording on a sheet member conveyed by a conveying mechanism, said recording apparatus comprising;
- a carriage;
- trigger means for applying a trigger for transmitting a drive force to the conveying mechanism so as to convey the sheet member in accordance with movement of said carriage;
- confirmation means for confirming the effect of the trigger applied by said trigger means to the conveying mechanism;
- and
- control means for outputting a signal for conveying the sheet member to the conveying mechanism in such a case that said confirmation means does not confirm the effect of the trigger by said trigger means after said trigger means applies a previous trigger to the conveying mechanism so as to convey the sheet member in accordance with the movement of said carriage.
A recording method for recording on a sheet member conveyed by a conveying mechanism, said recording method comprising the steps of:
- providing a carriage;
- applying a trigger for transmitting a drive force to the conveying mechanism so as to convey the sheet member in accordance with movement of the carriage;
- detecting the sheet member provided in a predetermined region;
- and
- outputting a signal for conveying the sheet member to the conveying mechanism in such a case that said detecting step does not detect the sheet member after said trigger applying step applies a previous trigger to the conveying mechanism so as to convey the sheet member in accordance with the movement of the carriage.
A recording method for recording on a sheet member conveyed by a conveying mechanism, said recording method comprising the steps of:
- providing a carriage;
- applying a trigger for transmitting a drive force to the conveying mechanism so as to convey the sheet member in accordance with movement of the carriage;
- confirming the effect of the trigger applied in said trigger applying step to the conveying mechanism;
- and
- outputting a signal for conveying the sheet member to the conveying mechanism in such a case that said confirming step does not confirm the effect of the trigger in said trigger applying step after said trigger applying step applies a previous trigger to the conveying mechanism so as to convey the sheet member in accordance with the movement of the carriage.
Dependencies are inferred from the claim text.