HP Designjet 8000 Printer series - Manual (Page 78)

CAUTION The printer has an internal clock which allows it to wash the printheads automatically,
flushing some ink through the printheads, which keeps the printheads in good condition. The
printer automatically washes the printheads regularly after the last printing process. If the printer
is switched off or media is not loaded, this process does not happen. If the ink does not flow
through the printheads from time to time, the ink will dry inside the nozzles, reaching a point where
it is impossible to recover them and the printheads will fail. If the printer must be switched off for
a long period of time, the customer must use either the optional HP Ink System Cleaning Kit or
HP 780 Ink System Storage Kit to recover or protect the printheads.
Automatic maintenance and cleaning will ONLY be performed when the printer is switched on
and powered up with media loaded. If you switch it off on the front panel or with the power switch
on the rear of the printer this maintenance will NOT be performed.
CAUTION The use of safety glasses and gloves is recommended when performing cleaning
and maintenance operations.
Always use genuine HP cleaning kits. These have been designed for maintaining high-quality
imaging performance and reliable printer operation. Using non-HP supplies may cause poor print
quality, printer malfunction, printer failure, or a safety hazard.
Category Inspection/Maintenance See
Daily Capping unit cleaning
Checking wiper liquid level
Checking waste ink bottle level
Printhead cleaning
Nozzle print
Capping unit cleaning
Wiper liquid bottle replacement
Waste ink bottle replacement
Normal printhead recovery
Print the nozzle print pattern
Monthly Wiper Liquid bottle replacement
Printhead cleaning
Wiper liquid bottle replacement
Normal printhead recovery
Depending on printer usage,
approximately every three months Wiper Blade replacement Wiper blade replacement
Every six months Wiper sponge replacement Wiper sponge replacement
To leave the printer for an extended
period in the power off state (more than
two weeks but less then four weeks) Clean ink system
Ink system storage
Clean ink system
Ink system storage after cleaning the ink
system
When returning the printer from an
extended period in the power off state
(more than two weeks but less then four
weeks) Clean ink system
Ink charge after cleaning
Clean ink system
Charge the ink system after cleaning the
ink system
When returning to the printer after being
switched off for an extended period (less
than two weeks) Clean ink system
Ink charge after cleaning
Clean ink system
Charge the ink system
68 Chapter 6 How do I maintain the printer ENWW
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