HP 9600 Series - Manual (Page 107)

7-4 ENWW
Right print cartridge light blinks,
Power light on. Black or photo print cartridge is low on ink.
Replace the print cartridge soon. See “Installing or
replacing the print cartridges” .
You can still print with one print cartridge. See “Printing
with a single print cartridge” .
Left and right print cartridge lights
blink, Power light on. The left (color) and right (black or photo) print cartridges are
both low on ink.
Replace the print cartridge soon. See “Installing or
replacing the print cartridges” .
You can still print with one print cartridge. See “Printing
with a single print cartridge” .