OKI reset drum "chip" - what is this component actually?

[evava]

Hello,

I wonder if someone know what is this component called "Oki reset drum chip" and sold on alibaba?

https://www.alibaba.com/product-detail/For-OKI-B411-B431-FUSE-Drum_60749096957.html?spm=a2700.7724857.normalList.233.128e78c8Utebah

Is is some resistor or fuse or what?

[amyk]

3A Littelfuse with the picture mirrored...

Does the printer blow the fuse on the cartridge when it thinks it's empty? That would explain the "reset" terminology.

[Towger]

It is a fuse which blows when the cartage is used for the first time, resetting the required counter.

It is a littelFuse "1/16A LF" : https://ie.rs-online.com/web/p/non-resettable-wire-ended-fuses/5413221/

I have some new 'Oki' ones somewhere, extracted from new toner belts damaged in shipping. The chips in the toner cartridges are RFID. The printer remembered the last x (8?) used, before deciding the toner is new.

On some (all?) models you can tell the printer to ignore the various counters from the service menu. It may still warn on the display, but keeps printing.