The green and red lights are flashing alternatively and the printer doesn't work. how can i solve this please?

SOURCE: Epson C48 red and green lights flashing alternately

Only Solution is Re-burn printer firmware.

Mahesh DG, Pune

SOURCE: Epson C45(Red and Green light flashing alternately)

The waste ink collector pads are getting full and this is a protection indicator.
Either get the machine serviced or it may be cheaper to replace it-[depending where you live]
There are tricks to keep the machine going- but eventually the you will get ink leaking all over the place.
Take a look at www.fixyourownprinter.com

SOURCE: Epson C45(Red and Green light flashing alternately) problem

solution service required epson c45

SOURCE: Epson C48 red and green lights flashing alternately

Where is the prtinter nappy diapher

SOURCE: Epson c46 printer

If both lights are flashing, it means the Waste Ink Pads in your printer are saturated with ink and the waste ink ("protection") counter has exceeded its limit. The Waste Ink Pads should be replaced as soon as possible. You can overcome this problem temporarily by using the SSC utility - download from

http://www.ssclg.com/epsone.shtml

and reset the Protection Counter. This will stop the lights flashing and restore normal operation.

However, remember that eventually ink will overflow from the waste ink area and make a dreadful mess, so you must change the waste ink pads before this happens. This requires the disassembly of the printer. A copy of the service manual is available from a number of sellers - just Google "Epson C46 Service Manual". You will often find them for sale very cheaply on E-Bay.

If you decide to have a go at replacing the ink pads yourself, report back and I will provide further help.