Most S3cc921 software utilities are legacy tools designed for Windows 7, 8, or 10 (often requiring execution in Compatibility Mode or with Administrative privileges).
This is the primary software application used to interface with and reset the S3cc921 chip. It is an all-in-one tool that allows you to:
According to forum discussions, the widely circulated software by Lutov A.N. "worked only with SECDP1, and the chip ML-1670 has SECDP3". When the author discontinued development after his software was stolen, no updates were released to support newer chip variants.
Open the software and select your specific printer model from the menu.
Toner cartridge expenses can accumulate rapidly, particularly for frequent printers. Many Samsung and Xerox printers use to track toner levels and block printing once the cartridge is considered "empty," even if there is usable powder remaining. S3cc921 Chip Resetter Software
Reusing the plastic shell and internal rollers keeps electronics and chemical plastics out of landfills.
If the software doesn't work for your specific chip revision, you can manually edit the hex dump:
The programmer pins must be aligned with the contact points on the S3CC921 chip.
| Printer Model / Series | Compatible Toner Cartridge | | --- | --- | | ML-1640, ML-1641, ML-1645 | MLT-D108S | | ML-2240, ML-2241 | MLT-D108S | | ML-1660 | - | | ML-1910, ML-1915 | MLT-D104 series | | SCX-4600, SCX-4623 | - | | ML-2855 | - | | ML-5510, ML-6510 | MLT-D309, MLT-D309L | Most S3cc921 software utilities are legacy tools designed
Ultimate Guide to S3cc921 Chip Resetter Software: Reset Samsung & Xerox Cartridges
While using S3cc921 software is highly effective, users should be aware of potential roadblocks:
: Software alone cannot reset a chip; you need a physical programmer or adapter (often connecting via USB, COM, or LPT ports) to make contact with the chip's pins. Serial Number Limitation
It cannot change the unique serial number or the data in the "One Time Programmable" (OTP) area of the chip. Because of this, it is often recommended to swap chips between different cartridges so the printer doesn't see the same serial number resetting to full repeatedly. Hardware Requirements "worked only with SECDP1, and the chip ML-1670 has SECDP3"
You cannot use this software with just a USB cable. You will need:
It changes the ink/toner level indicator back to 100%.
It is recommended to use a circuit protection scheme (like the SN74LS05DR chip) to prevent damage to your computer's ports. How to Use the Software
The critical issue with the S3cc921 chip is that it does not actually measure the physical powder volume inside the toner hopper. Instead, it estimates usage based on a strict page-counter formula. Once the chip hits its programmed page ceiling (e.g., 2,500 pages), it sends a digital lock command to the printer. The printer will completely refuse to print, effectively rendering the cartridge "dead" even if there is 15% to 20% of usable toner powder left inside. What is S3cc921 Chip Resetter Software?
The S3cc921 chip resetter software is a Windows-based application that communicates with the S3cc921 chip, allowing users to reset the chip's counter, reprogram the chip, and restore printer functionality. The software is compatible with various printer models, including Samsung, Xerox, and Lexmark.
Wipes permanent "Toner Exhausted" or "Non-Genuine Cartridge" error codes from the printer’s memory. Hardware Requirements: The Missing Link