The exclamation and the toner lights are steady on yellow and i can't print

Clean the toner near empty sensors.

The clear section of the waste toner box where that goes inside the machine check that area sensor located there might have toner on it so the printer thinks the waste toner box is full

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Press and release to clear the light sequence and continue processing the print job. With the printer turned off, remove the toner cartridge and shake it to extend its life. Check the newly installed toner cartridge if it is the one suitable for your region.

For further assistance, please call Lexmark Technical Support.

I guess it FixYa didn't accept my (very long, but totally correct) solution that I took the time to type. Because I refused to "sign in".
Here's the short version. Load Paper. The same thing happened to me. I replaced the toner cartridge with a new one (because of a FLASHING red light for several weeks) after the red light went to STEADY red. But it still would not print. The paper was "out". When I'd refilled the paper-tray, it printed fine. I had just ASSUMED that the steady-red light meant toner was finally OUT. WRONG! That steady-red light had nothing-to-do with toner; it meant "you're out-of-paper". Don't get confused like I did. Refill the paper-tray. Then take that expensive NEW toner cartridge OUT, and put the OLD toner cartridge back in. And keep using the "dregs" of the toner out of the old cartridge for several more weeks. And DON'T get confused by the paper-is-out condition making that red light STEADY.

If the toner and the exclamation lights are blinking yellow after replacing the toner and maintenance kit, then you will need to reset the photoconductor counter. But if the exclamation and the toner lights are steady on yellow, then that means there is something wrong with the toner.

Hi,
Thanks for writing to Fixya.com.

Please try to remove toner cartridge first . Next shake it properly to have the ink distributed evenly . Next plug in and make give a self test print. If it still gives you the error lights with half page printouts then for sure you need to change new toner cartridge to make sure that the problem is not with printer itself. .

Thanks for contacting Fixya and please accept the solution if it has helped you.

May be problem on mother board or toner unite.
If it self change toner .

If your printer have no paper jam inside and paper tray has paper in it, then you need to replace toner cartridge.

Two lights are lit up on the operator panel of my Lexmark E232 printer: a steady blue ready light and a steady yellow toner cartridge light.

This problem is caused by an imitated toner............ All you need to do is change it to the old cartridge and see if the light will not be stable. Well the solution i guess is simple............. just go to get a new original toner and it should work well. Hope this helps.