Hewlett-Packard Development Company, L.p.

Adam L Hornstein

Dario Giovanni Miticocchio

Kenneth Kay Smith

Pratik Shah

Joseph S Wong

Andrew P Chick

Dustin C Rosing

Samuel Albert Massey

Matthew James Storey

William H Schwiebert

Murray Learmonth

Stephen J Hall

Richard Motzkus

Steven Motzkus

Kerry N McKay

Susan E De La Torre

Examples disclosed herein relate to identifying an amount of remaining supply of a print material, selecting one of a plurality of threshold ranges associated with the amount of remaining print material, and updating a visual indicator indicative of the selected one of the plurality of threshold ranges.

Print material visual indicator

In some examples, an apparatus can include a print substance gauge to indicate a quantity of print particles an imaging device is capable of receiving at a particular time, and an authentication mechanism coupled to a locking mechanism, the authentication mechanism includes instructions to: determine a quantity of print particles within a print particle container, and unlock the locking mechanism when the print substance gauge indicates that the imagining device is capable of receiving the quantity of print particles within the print particle container.

Print substance gauge authentication

Printer

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San Diego, CA, United States of America

Adam L Hornstein