Oki OKIFAX 5750 User Manual page 148

Your received documents are light or have vertical streaks
on them and you are not out of toner.
Gently wipe the lens surface of your machine's LED array and
then see if the machine works properly.
See "Maintenance, Replacing the Toner Cartridge."
If your machine still does not work properly, remove the
image drum unit.
See "Maintenance, Replacing the Image Drum."
Tap the toner cartridge, and gently shake it from side to side
several times to redistribute toner. Be careful! Some toner
may spill from the cartridge.
If this does not work, you may need to replace your image
drum cartridge. For information on obtaining a replacement
image drum cartridge, see "Options and Accessories."
You set your machine for delayed transmission but it did
not send.
Check the display to make sure that you have set your
machine's clock to the correct time.
See "Setting Basic Features, Setting the Date and Time."
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Your machine disconnected before you could answer a
voice request.
You must answer a voice request while the warbling tone is
being emitted. When you hear the warbling tone, pick up the
handset.
Your machine will not poll a remote fax machine.
Call the person at the remote fax machine and make sure that
they have loaded documents and set their fax machine in
polling transmission mode.
Your machine is connected to a PBX and you can't dial out.
You must enter your dial prefix before the telephone number
for each number that you dial or program into your machine.
Your machine must also be programmed for PBX operation
before it will work.
See "Setting Basic Features, Connecting to a PBX."
You want to answer an external telephone but your
machine always answers first.
If you are using an external telephone, change your
machine's ring response user function setting.
See "Customizing Features and Operations, Changing
Operation Functions, Restrict Access."