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Troubleshooting and routine maintenance
113
DR Mode in Use The machine is set to Distinctive
Ring mode. You can not change
the Receive Mode from Manual to
another mode.
Set Distinctive Ring to Off. See Turning off
Distinctive Ring on page 48.
Drum Near End The drum unit is near the end of its
life.
Use the drum unit until you have a print quality
problem; then replace the drum unit with a new
one.
See Replacing the drum unit (DR-520) on page
131.
The drum counter was not reset
when a new drum was installed.
1. Open the front cover, and then press
Clear/Back.
2. Press 1 to reset.
Duplex
Disabled
The duplex tray is not installed
properly.
Remove the duplex tray and install it again.
Dust on Drum The primary corona wire on the
drum unit needs to be cleaned.
Clean the primary corona wire on the drum unit.
(See Cleaning the corona wire on page 126.)
Fuser Error The temperature of fuser unit does
not rise at a specified temperature
within specified time.
Turn the power switch off, wait a few seconds,
and then turn it on again. Leave the machine for
15 minutes with the power on. (The machine can
be turned off for up to 4 days without losing faxes
stored in the memory. See Checking if the
machine has faxes in its memory on page 116).
The fuser unit is too hot.
No Paper The machine is out of paper or
paper is not properly loaded in the
paper tray.
Do one of the following:
Refill the paper in the paper tray or MP tray.
Remove the paper and load it again.
No
Response/Busy
The number you dialed does not
answer or is busy.
Verify the number and try again.
No Tray The paper tray is not completely
closed.
Close the paper tray properly.
Not
Registered
You tried to access a One-Touch or
Speed Dial number that is not
programmed.
Set up the One
-Touch or Speed Dial number.
(See Storing One-Touch dial numbers on page
56 and Storing Speed-Dial numbers on page
58.)
Error Message Cause Action