US 10,947,073 B2 · Velocity and torque based media motor control

Abstract

In some examples, velocity and torque based media motor control may include ascertaining a velocity and torque for a feed roller motor associated with a feed roller, and ascertaining a velocity and torque for a drive roller motor associated with a drive roller that is to receive media from the feed roller. Further, velocity and torque based media motor control may include determining whether the torque for the drive roller motor is greater than a torque target. In response to a determination that the torque for the drive roller motor is greater than the torque target, the torque for the drive roller motor may be reduced to the torque target, and the torque for the drive roller motor may be maintained at the torque target.

Claims15

Dependent claims

An apparatus comprising:

a processor;
and
a non-transitory computer readable medium storing machine readable instructions that when executed by the processor cause the processor to:
ascertain a velocity and torque for a feed roller motor associated with a feed roller;
ascertain a velocity and torque for a drive roller motor associated with a drive roller that is to receive media from the feed roller;
determine whether the torque for the drive roller motor is greater than a torque target;
and
in response to a determination that the torque for the drive roller motor is greater than the torque target,
reduce the torque for the drive roller motor to the torque target,
maintain the torque for the drive roller motor at the torque target, and
allow, during the maintenance of the torque for the drive roller motor at the torque target, variations in the velocity for the drive roller motor.

8 more elements

A computer implemented method comprising:

ascertaining, after a specified acceleration distance of a feed roller motor associated with a feed roller, a velocity and torque for the feed roller motor;
ascertaining, after a specified acceleration distance of a drive roller motor associated with a drive roller that is to receive media from the feed roller, a velocity and torque for the drive roller motor;
determining whether the torque for the drive roller motor is greater than a torque target;
and
in response to a determination that the torque for the drive roller motor is greater than the torque target,
reducing the torque for the drive roller motor to the torque target,
maintaining the torque for the drive roller motor at the torque target, and
allowing, during the maintenance of the torque for the drive roller motor at the torque target, variations in the velocity for the drive roller motor.

5 more elements

A non-transitory computer readable medium having stored thereon machine readable instructions, the machine readable instructions, when executed, cause a processor to:

ascertain a velocity and torque for a feed roller motor associated with a feed roller;
ascertain a velocity and torque for a drive roller motor associated with a drive roller that is to receive media from the feed roller, wherein the ascertained velocity for the drive roller motor is greater than the ascertained velocity for the feed roller motor;
determine whether the torque for the drive roller motor is greater than a torque target;
and
in response to a determination that the torque for the drive roller motor is greater than the torque target,
reduce the torque for the drive roller motor to the torque target, and
maintain the torque for the drive roller motor at the torque target.

4 more elements

Dependencies are inferred from the claim text.

Velocity and torque based media motor control

Life of this patent

Velocity and torque based media motor control

Life of this patent

Abstract

Claims15