Oki FAX 740 - Manual (Page 58)

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4. Gently push the top of the ink cartridge towards the
rear of the machine until its snaps free.
6. To clean the cartridge, use a lightly damped, clean,
lint-free cloth to gently wipe clean the copper areas,
including the contacts (1) and the ink nozzles (2) on
the under side. To remove any dried ink from the
nozzles, hold the damp cloth against this area for about
three seconds.
5. Holding the cartridge by its top, lift it free of the carrier.
Avoid touching the copper areas with your fingers.
7. Still holding the cartridge by its top, ensure it is the
correct way round for re-loading (copper contacts
towards the front of the machine) and lower it back
into the carrier.
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