Understanding the status LED
135
4. Troubleshooting
LED
Status
Description
Status
Off
•
The machine is off-line.
•
The machine is in power save mode.
Green
Blinking
When the backlight blinks, the machine is receiving or printing data.
On
•
The machine is on-line and can be used.
Red
Blinking
•
A minor error has occurred and the machine is waiting for the error to be cleared. Check the display message. When the problem
is cleared, the machine resumes.
•
Small amount of toner is left in the cartridge. The estimated cartridge life
a
of toner is close. Prepare a new cartridge for
replacement. You may temporarily increase the printing quality by redistributing the toner (see "Redistributing toner" on page
94).
b
On
•
A toner cartridge has almost reached its estimated cartridge life
a
. It is recommended to replace the toner cartridge (see
"Replacing the toner cartridge" on page 97).
•
The cover is opened. Close the cover.
•
There is no paper in the tray. Load paper in the tray.
•
The machine has stopped due to a major error. Check the display message (see "Understanding display messages" on page 137).
•
A paper jam has occurred (see "Clearing jams" on page 116).
•
An imaging unit has almost reached its estimated cartridge life
c
. It is recommended to replace the toner cartridge
Wireless
b
Blue
Blinking
The machine is connecting to a wireless network.
On
The machine is connected to a wireless network (see "Wireless network setup" on page 190).
Off
The machine is disconnected from a wireless network.
Summary of Contents for M337
Page 3: ...3 BASIC 5 Appendix Specifications 144 Regulatory information 152 Copyright 164...
Page 95: ...Redistributing toner 95 3 Maintenance 4 M3370 M3870 M4070 M4072 series...
Page 96: ...Redistributing toner 96 3 Maintenance 5 M3375 M3875 M4075 series...
Page 104: ...Installing accessories 104 3 Maintenance 2 1 1 2...
Page 109: ...Cleaning the machine 109 3 Maintenance 1...
Page 163: ...Regulatory information 163 5 Appendix 27 China only...