I changed the toner catrige but machine is not functioning.

Have you tried to replace the toner???? Are you sure the light that is blinking for the toner?????

That indication is Toner Indication.You should change the toner,Now May be the toner chip also damaged. whether the machine worked after changing the toner then no need to change the toner chip,other wise the same indication still, then you change that one also.

hi,
blinking led after replacement of toner cartridge is normal , you have to wait till it gone .
how ever if you feel it take along time then you must check the toner cartridge and reinstall it properly if the machine still blinking you may have to change the developer.

thank you for using fixya

check your developer unit wheel set .i think it was broken.that 's why didn't add toner

F2 means that an improper cartridge has been installed. Look for the exact type that you used before and it will work.

The problem is that the toner sensor is not recognizing that type of toner. All toner is not the same you will cause more damage to the machine. Use the specified manufacturer toner.

If that machine is not made by Sharp you can't interchange toners with other machines. On Sharps If you get a F2 code it means the toner ratio and sensors are not calibrated correctly probably due to the toner not being compatible. If it is compatible the sensor could be dirty and it needs to be calibrated again.

CH steady means cover is open. Close either front or right cover well.
CH blinking means developer unit or toner cartridge not installed. Remove and return well and firmly.

the best you can do is to replace the toner cartridge itself. It won't work if you just refill it.

The developer doesn't need to be reset on AR series machines. Toner and developer are in one cartridge. There is a drum reset. That is service code 24-07.

Did you replace the drum as well?