Stalling operation of imaging devices
First Claim
Patent Images
1. An imaging device comprising:
- an input roller assembly to transport a medium from an input tray towards an image-forming assembly; and
a line feed roller assembly disengagably coupled to the input roller assembly to selectively drive the input roller assembly, the line feed roller assembly comprising;
a line feed shaft coupled to an actuator to;
obtain a drive from the actuator; and
disengage from the input roller assembly to discontinue advance of the medium; and
a drive control assembly mounted on the line feed shaft to disengage the line feed roller assembly from the input roller assembly to stall operation of the imaging device, the drive control assembly comprising;
a swing arm mounted on the line feed shaft, wherein the swing arm bears a transition fit on the line feed shaft;
a driving transmission member fixedly mounted on the line feed shaft to rotate with the line feed shaft; and
an engaging transmission member rotatably mounted on the swing arm and engaged with the driving transmission member, wherein the engaging transmission member is to engage and disengage from the input roller assembly by actuation of the swing arm to selectively drive the input roller assembly.
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Abstract
Examples of stalling of operation of imaging devices are described herein. In an example, the imaging device includes an input roller assembly to transport a medium in the imaging device and a line feed roller assembly disengagably coupled to the input roller assembly to selectively drive the input roller assembly. To stall the operation of the imaging device, a line feed shaft of the line feed roller assembly can be automatically disengaged from the input roller assembly to discontinue advance of the medium along a print path.
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Citations
15 Claims
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1. An imaging device comprising:
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an input roller assembly to transport a medium from an input tray towards an image-forming assembly; and a line feed roller assembly disengagably coupled to the input roller assembly to selectively drive the input roller assembly, the line feed roller assembly comprising; a line feed shaft coupled to an actuator to; obtain a drive from the actuator; and disengage from the input roller assembly to discontinue advance of the medium; and a drive control assembly mounted on the line feed shaft to disengage the line feed roller assembly from the input roller assembly to stall operation of the imaging device, the drive control assembly comprising; a swing arm mounted on the line feed shaft, wherein the swing arm bears a transition fit on the line feed shaft; a driving transmission member fixedly mounted on the line feed shaft to rotate with the line feed shaft; and an engaging transmission member rotatably mounted on the swing arm and engaged with the driving transmission member, wherein the engaging transmission member is to engage and disengage from the input roller assembly by actuation of the swing arm to selectively drive the input roller assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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detecting jamming of a medium in an imaging device; and disengaging a line feed roller assembly from a drivetrain assembly to stall operation of the imaging device of advancement of the medium along a print path, wherein the line feed roller assembly transmits a drive to the drivetrain assembly in an engaged position to advance the medium along the print path and the line feed shaft disengages from the input roller assembly to discontinue advance of the medium, wherein the disengaging comprises; rotating a line feed shaft of the line feed roller assembly in an engagement direction by a first number of counts to engage the line feed roller assembly with the drivetrain assembly; and rotating the line feed shaft in a counter-engagement direction opposite to the engagement direction by a second number of counts to disengage the line feed roller assembly from the drivetrain assembly, the second number of counts being less than the first number of counts. - View Dependent Claims (9, 10)
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11. A non-transitory computer-readable medium comprising instructions executable by a processing resource to:
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determine that a medium is jammed along a print path in an imaging device; trigger an actuator to rotate a line feed shaft of the imaging device and disengage from the input roller assembly to discontinue advance of the medium, in response to the determining that the medium is jammed; and disengage the line feed shaft from an input roller assembly of the imaging device, in response to the triggering, to discontinue advance of the medium along the print path and stall operation of the imaging device. - View Dependent Claims (12, 13, 14, 15)
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Specification