Reset Samsung scx 3400 — safe counter reset & chip guide
Reset Samsung scx 3400 — what it means and the safest way to do it
Reset Samsung scx 3400 is what many users search after refilling a cartridge and seeing a red/blinking light or “Replace/Install toner” messages even though there’s toner inside. The SCX-3400 platform uses a toner cartridge (MLT-D101S) with a yield chip. When that chip reports “end of life,” the printer can stop printing until it detects a “fresh” cartridge. This guide shows you the lowest-risk fixes first (chip replacement and official firmware refresh) and clearly flags the risks of any unofficial reset tools, so you don’t brick your machine. How the counter & chip work (why refilling alone isn’t enough)
The printer tracks usage through a chip on the cartridge and internal counters.
Yield ratings are...