Open the main compartment cover and pull out the toner cartridge.
This prints the . Look for the 11-digit Serial No: CRUM-XXXXXXXXXXX associated with the toner. Open the main compartment cover and pull out
If your printer firmware is older than v3.00, the Firmware Fix is the best long-term solution as it saves you from buying chips forever. If your firmware is updated, you must use Method 2 (Replacement Chips) . Open the main compartment cover and pull out
The printer stops working after a set number of pages, forcing you to buy new cartridges prematurely. Open the main compartment cover and pull out