User Maintenance 4-3
Black Ink jet head cleaning and maintenance:
The ink jet head requires particular care as far as cleaning the nozzles are
concerned.
Given their particular structure, the nozzles are likely to get clogged with dust or,
if exposed, dried ink.
Some useful tips to guarantee the best use of the head are listed below:
•
Only remove the head from its wrapper when about to insert it into the
printer. The head is guaranteed for approximately 18 months if preserved
in its sealed container and for approximately 6 months if unprotected (the
two periods are cumulative).
•
Do not place the head on the nozzle or on the electric contacts.
•
Do not place the head on heat sources, air conditioners or dusty or dirty
surfaces.
•
If necessary (nozzles clogged), carry out the ”PRIME” command
(section 4.1).
•
The purpose of this command is to suck some ink through the nozzles to
remove any dirt. This command should be carried out each time one or
more nozzles become clogged.
•
On termination of a print operation, hermetically seal the nozzle area to
protect them from dust and to prevent the ink from drying. This
operation is automatically carried out on the printer if it is inactive for a
few seconds, therefore, wait a few seconds after the last printout before
switching off the machine.
•
In the case of a power failure, after switching off the printer, push the
head by hand to the right, to the end of its stroke.
_______________________ Note _____________________________
If the computer is switched off while the printer is still switched on,
the printer will reset. If the printer is switched off during this reset, the
print head may not stop in its rest position.
Always switch off the printer before switching off the computer.
Summary of Contents for DECcolorwriter 520ic
Page 1: ...DECwriter 500i DECcolorwriter 520ic LJ500 and LJ520 Service Manual EK LJ50E SV A01...
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Page 80: ...Electrical Interconnections 8 2 8 2 POWER SUPPLY BOARD...
Page 81: ...Electrical Interconnections 8 3 8 3 POWER SUPPLY CIRCUIT ON MAIN BOARD...
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