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10-6 Functional Overview
HP DesignJet 430, 450C and 455CA Printers
Servicing the Cartridges
Service Station
D The service station is easy to access and remove, and is replaceable as one
unit.
D The absence of a drop detector implies a different cartridgeĆmaintenance
algorithm to guarantee correct nozzle conditions. The Printer warms the
nozzles and spits ink:
D Before each plot.
D After each cartridge change.
D While printing, depending on: cartridge, humidity, temperature, and
plot ink density.
D The ventilation holes, which were located on the serviceĆstation sled on
the DesignJet 650C, are now located on the ink separator to prevent them
from becoming clogged.
Spittoon
A single, redesigned spittoon is located on the right side of the Printer.
Primer
The Printers feature a manual primer, based on that of the DeskJet 1200,
instead of the automatic one of the DesignJet 650C.
D A bellows assembly provides a vacuum to suck ink from the nozzles. The
suction tubes have a wider diameter than those of the DesignJet 650C, to
help prevent clogging.
D An ink separator isolates the bellows from the cartridges, preventing ink
contamination of the bellows.
Although the primers for the DesignJets 430, 450C and 455CA and
DesignJets 230 and 250C look identical, their characteristics are different.
Installing the incorrect primer can damage the cartridges or reduce the
servicing of the cartridges. For the correct part numbers for the primers '
chapter 7.