Originally Posted by
Pob255
The chips are a small bit if you look on the drum you'll see one, it just keeps a counter of number of prints, you could try to replace it, you need to pull off the
old one and glue in the new chip, this will make the printer hink you've put a new drum in.
The effect of using an old drum is possible lose of quality as the surface of the drum (granted it's a belt not a drum) can lose it's ability to hold the toner, so you can get marks appearing.
But for the cost of the replacement kit (that ebay link) probably worth a shot
The other thing is excess/waste toner, does the printer have a waste toner tank? that may need emptying/changing. (I'll warn you now, emptying a waste toner tank is a very messy job, don't wear good clothes or do it in an area you want kept clean)
If not it might be built into the drum unit so swapping the chip to extend it's life runs the risk of the waste toner filling up and leaking.
sorry I don't have much experience with OKI printers, why I suggested getting it serviced, rough guess a call out printer service will be around £50-75 + parts