Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
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B41J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
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2/00
Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
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B41J2/005
characterised by bringing liquid or particles selectively into contact with a printing material
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B41J2/165
Prevention; or detection; of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
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B41J2/16517
Cleaning of print head nozzles
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B41J2/1652
by driving a fluid through the nozzles to the outside thereof, e.g. by applying pressure to the inside or vacuum at the outside of the print head
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B41J2/16532
by applying vacuum only
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