Hi! I have problem with my samsung scx-4300. after replacing new toner it say "invalid toner" idon't think my toner is defective because its brandnew toner. please help me

Samsung strongly recommended original supplies as it has programmed sensor/fuse in it,

SOLVED IT!
- PROBLEM: I'm using a refilled toner / NOT original Samsung (supplier: Peach, Switzerland)
- SOLUTION: 1. Remove the toner 2. Simply put a tape over the four metal contacts on the backside of the toner 3. Insert the toner
- It will now print, the printer says "low toner" & the LED status light is red - just ignore! It still work well....
- EXPLANATION: the chip (behind the four contacts) seems not be needed. I used a compatible 3rd party toner (Peach, Switzerland)
- Observation: The refilled toner worked well for the first 2-3 weeks, then suddenly I had this error message.

Generally this message occurs when using a generic toner cartridge that has the incorrect micro chip counter on it. Is the toner cartridge generic or genuine? In either case it needs to be returned for a credit or replacement.
Putting a genuine cartridge will rectify the problem i feel.

replace the chip on the cartridge

The cartridge is original? If not replace the chip on the cartridge or buy original cartridge

Hi

You need to raplce chip on cartridge

Pls vote me to keep me alive

Hi

replace toner with a new one

toner exhausted = the toner has been used all up, buy a new one.
It's something like
http://www.tronix.ro/toner-samsung-scx4300-p-9783.html

try to set your printers configurations fatory default 10. Maintenance > Of clear Of setting > Of all Of setting [OK] In the service menu (TECH MODE):
MENU> Of data Of setup > Of clear of count > Of clear Of all CNT

samsung scx-4300 error message "toner exhausted" how to reset printer