Hewlett-Packard Development Company, L.p.

Ziv Seemann

Avi Barazani

Israel Katz

Shmuel Borenstain

Erez Heldy

Alexander Yekymov

Boris Unaeve

Dror Halawa

Yinon Harari

An example printing fluid apparatus, for a printing system, comprises a printing fluid reservoir to store printing fluid for use in a print job and a printing fluid channel to route printing fluid from the reservoir to the reservoir and to route printing fluid from a printing station of the printing system to the reservoir. The fluid channel comprises a port to introduce printing fluid from a printing fluid cartridge into the fluid channel such that the introduced printing fluid from the printing fluid cartridge at least partially mixes with printing fluid in the fluid channel.

Mixing printing fluid

According to aspects of the present disclosure there are provided methods and apparatus for providing selective control of a lateral position of a transfer blanket, the method comprising providing a crowned pulley rotating about an axis of a shaft, supporting a transfer blanket on the crowned pulley, the crowned pulley providing a self-tracking effect on a lateral position of the transfer blanket, and selectively controlling a lateral position of the crowned pulley along the axis of the shaft.

Adjusting a lateral position of a transfer blanket

Offset print apparatus comprises a blanket arranged in a closed loop around a plurality of rollers. Each of the plurality of rollers is rotatable about a respective roller axis to support and convey the blanket around the closed loop. The plurality of rollers comprises: a primary steering roller rotatable about a primary roller axis and being pivotable about a primary steering axis perpendicular to the primary roller axis; and a secondary steering roller rotatable about a secondary roller axis and being pivotable about a secondary steering axis perpendicular to the secondary roller axis. The primary and secondary steering rollers are each independently pivotable. The offset print apparatus further comprises an actuator to actuate pivoting of the primary steering roller and the secondary steering roller.

Offset print apparatus and methods

In an example of the disclosure, service rotation of a drum along a longitudinal axis of the drum is caused. The service rotation is to apply a centrifugal force upon a liquid held by the drum. The centrifugal force pushes gas bubbles in the drum away from a curved surface of the drum and towards the longitudinal drum axis. The gas bubbles evacuate from the drum via an outlet tube positioned adjacent to the longitudinal drum axis. A production rotation of the drum is caused after the service rotation.

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Ness Ziona, Israel

Ziv Seemann