Oki FAX 740 - Manual (Page 60)

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Cleaning the Ink Carrier Contacts
The ink carrier contacts are located inside the ink cartridge
carrier. To clean them it will be necessary to again remove
the ink cartridge.
1. Remove the ink cartridge (see pages 49-50).
2. Use a clean dry cloth to reach into the ink carrier and
wipe the contacts clean.
3. Re-install the ink cartridge (see pages 50-51).
4. Run a nozzle test (function 52) to re-check the print
quality.
If print quality is still poor, replace the ink cartridge. If
there is still no improvement, contact your dealer for
service.
Cleaning the Document Feeder
The feed rollers in the document feeder may become smooth
over time, due to paper dust residue. Cleaning with a damp
cloth will bring back the proper friction for reliable
document feeding.
1. Switch off your OKIFAX 740 and disconnect from ac
power.
2. Press the cover release tab and raise the top cover to its
fully open position.
3. Wipe the upper and lower feed rollers clean with a clean
damp cloth.
4. Lower the top cover and press down firmly to lock it
closed.
5. Reconnect ac power and switch on.
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