Unwinding or winding rolls of print substrate
AssigneeHewlett-Packard Development Company, L.P.
InventorsDaniel Gutierrez Garcia, Roger Terradellas Callau, Carlos Felip Aragon, Raimon Castells De Monet
Life of this patent
Estimating the term…
Abstract
In one example, a device for unwinding or winding multiple rolls of print substrate includes multiple spindles each to hold a roll of print substrate and a differential operatively connected to one end of each spindle. The spindles are aligned with one another lengthwise along a spindle axis and the differential is to output torque along a differential axis offset from the spindle axis to turn the spindles on the first axis.
Claims19
A device for unwinding or winding multiple rolls of print substrate, the device comprising:
- spindles each to hold a roll of print substrate, the spindles in line with one another lengthwise along a spindle axis;
- and
- a differential operatively mounted along a differential axis offset from the spindle axis, the differential connected to a respective end of each spindle of the spindles, the differential to receive an input torque from a driveline along the spindle axis, redirect the input torque to a torque along the differential axis, and transmit an output torque based on the torque along the differential axis to turn the spindles on the spindle axis.
A printer comprising:
- a mount to hold a pen for dispensing a printing fluid;
- a spindle assembly to wind and unwind rolls of print substrate, the spindle assembly comprising:
- spindles each to hold a respective roll of print substrate of the rolls of print substrate, the spindles co-axial along a spindle axis;
- and
- a differential operatively mounted along a differential axis offset from the spindle axis, the differential connected to a respective end of each spindle of the spindles, the differential to receive an input torque from a driveline along the spindle axis, redirect the input torque to a torque along the differential axis, and transmit an output torque based on the torque along the differential axis to turn the spindles on the spindle axis.
Dependencies are inferred from the claim text.