[icarus_drowning]

I was able to get this to work on an HL2140 last year. I just taped a small piece of construction paper over the eye on the cartridge and it happily went about printing for quite some time- I made it through an entire ream before the quality degraded. Since then, I always cover the eye on new cartridges before I insert them and use the quality of the prints, not the printer itself, to let me know when to buy more toner.

[cssndrx]

Ah yes, you're right. The hole was supposed to be on the toner, but the hole no longer existed on the toner required by my printer (judging by toner/hack pictures I found online and threads discussing the hack for my make). Glad it worked out for you. Don't replace your printer!