Brother MP-21C Service Manual page 188

USER'S GUIDE
3-2
Ink LEDs ( (BC) LED and
Each Cartridge LED indicates when the ink is low or empty.
LED Printer status
Blinking The color ink cartridge is running out of ink. You
should prepare a new ink cartridge for that color.
On The color ink cartridge is empty. You should
replace it with a new one immediately for optimum
print quality. See
section in Chapter 4.
This may also indicate that one or more ink
cartridges may not be installed correctly or there is
no cartridge installed if the
(Alarm) LED
(Alarm) LED indicates a printer error status.
The
LED Printer status
On Paper empty, paper jam or mis-feeding. If a paper
jam occurs, refer to
There is no ink cartridge installed or the ink
cartridge(s) is not installed correctly when an ink
LED(s) is also on.
Blinking The top cover of the printer is open and should be
closed so that the printer can print.
When the (Alarm) LED is on or blinking and the printer has detected
an error condition, refer to the
Chapter 5 and clear the problem to make the printer ready to print.
When (On/Off) LED+
LED+ (MY) LED) Blink in Turn
The printer is making itself ready to print.
The printer is cleaning the print head.
When All the LEDs Blink at the Same Time
System error occurred. Refer to the
(MY) LED)
'Replacing the Ink Cartridges'
(Alarm) LED is on.
'Paper Jams' in Chapter 5.
'Alarm Indications at a Glance' section in
(Alarm) LED and Ink LEDs (
'Service Calls' section in Chapter 5.
(BC)