Chip of cartridge damaged due to toner

toner cartridge chip is damaged pleas replace a chip or chip recieving contact

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.

Chip might be damaged in the cartridge, try to take an complaint where you bought it

The toner cartridges for the 8026 have a chip on them which count the amount of toner being dispensed from the toner cartridge.
When the printer counts the amount of toner being dispatched from the cartridge has exceeded the amount of "usable" toner in the cartridge, the printer will display the error showing the toner cartridge needs to be replaced.
Crucial the printer also "writes" to the chip on the toner cartridge to say it is empty----You can no longer use this cartridge by simply refilling it.

You need to replace the toner cartridge on the printer with a Genuine New 8026 toner, this should then clear the error automatically and the printer will again spring back to life.

If you are using a new toner you may;

1. Have a faulty replacement toner
2. Have a blockage in the pipe which takes the toner from the toner cartridge to the drum unit
3. Have a fault with the toner dispense motor

TONER CHIP on CP2025 printer:
This resource may help
http://resources.lasertekservices.com/hp-smart-chips-overriding-this-lockout-mechanism-with-reset-chips/
Gives types of chips to use, sales in USA, and certain things to take note of.
The toner reset chip replaces the original HP ID chip and is designed to be used only on refilled HP cartridges.
It is not recommended to force toner cartridges to run on empty, as this can cause damage to both the printer and the toner cartridge.
The reset chips are dedicated to one color only, so that user can not swap toners.
As for actual physical installation, just push the new ID chip in until it clicks into place. The correctly manufactured ones should be a snug fit.
I have seen techs using a drop of contact glue behind the chip-board to secure it.
Copper pads face outwards towards matching printer pins.
See photo for polarity 'square' pad.
My printer is Samsung, not HP, so your toner cartridge may be a different shape.

ML-1640 Series + Toner exhausted.+ how to reset the printer.

You should still be able to do a printer test page (press the arrow button).

Look at the printed page(s) for the Photoconductor AND the Toner.

They show as OK when new (or very low count), and 100% when fully used.

It IS ossible that the toner cartridge has a faulty (or if a remanufactured cartridge - un replaced) chip.

Some 'after market' chips are not compatible with E250, and it IS possible that your replacement cartridge is for an E350, or E450 (which have different chips, and some of the poorer remanufacturers , and some reselers that don't do these very often don't know).

It could even be a Dell 1720 chip on the cartridge.

I make around150 Dell 1720, 20 E450, 50 E350 cartridges a month and only around 5 E250s, so this gives you an idea of the relative numbers, in the market

Just refilling the cartridge may not resolve the low toner message. Many cartridges have a sensor chip that must be reset to clear the message. Due to this, many people opt to buy replacements or refurbished cartridges that have had the sensor chip reset.

As well as adding toner, there is a chip that must be replaced (with the cartridge bottom up, the chip is towards the right side and held in place with two small screws). The chip can be purchased separately but is included with refilling kits that are overall less expensive than buying the parts individually.