1-8
Confidential
3. LED DISPLAY
3.1 LED Display when Operator Call Occurs
Determine the message details according to the LED display on the control panel. Refer to
the page shown in the “Refer to:” column in the table below to take appropriate measures.
Error LED indications are automatically cleared after measures are taken. If not automatically
cleared, press the button to reset the machine.
LED status in the table below: Unlit Lit Flashing
LED LED display Type of problem
No. of times the
button is
pressed to reset
Refer
to:
Error LED flashes once
every 0.5 seconds and
stays unlit for a second.
Dot count or developer roller
counter of the toner is reaching or
has reached the upper limit (when
setting toner continuous printing).
N/A 4.4.1
Error LED flashes three
times every 0.5
seconds and stays unlit
for a second.
The number of rotations of the
drum unit is reaching or has
reached the upper limit.
N/A 4.4.6
Error LED flashes once
every 0.5 seconds and
stays unlit for a second.
Dot count or developer roller
counter of the toner has reached
the upper limit (when setting toner
stop mode).
4.4.1
No toner cartridge
4.4.2
Dot count or developer roller
counter of the toner has reached
the upper limit or forced outage
level when the toner continuous
printing is set.
4.4.1
Error LED flashes twice
every 0.5 seconds and
stays unlit for a second.
The paper feed sensor does not
detect paper pass within the
specified time while printing.
4.1.4
The paper printing position
sensor does not detect paper
pass within the specified time
after the paper feed sensor
detected paper pass.
4.1.4