This is a Compatible Hewlett Packard (HP) Q1338A (38A) Black Laser Toner Cartridge which is guaranteed to perform with Hewlett Packard (HP) HP LaserJet 4200 Printer Series. It replaces the original Hewlett Packard (HP) Q1338A Toner Cartridge. The compatible Black replacement Q1338A Laser Toner Cartridges and supplies (also known as generic) are specially engineered to meet the highest standards of quality, reliability and exceptional yields that meet or exceed OEM (Original Equipment Manufacturer) standards for the Q1338A (38A) and offer high-quality printing results. Our compatible HP 38A is ISO-9001 certified and contains up to 85% new parts including wiper blades, OPC drums, and other internal components. Our high quality Q1338A toner cartridges are an economical and sensible alternative to expensive OEM Q1338A (HP 38A) Hewlett Packard (HP) Laser Toner Cartridges and supplies. The use of compatible replacement Laser Toner Cartridges and supplies does not void your Printers Warranty. This replacement HP Q1338A laser toner cartridge includes a new electronic smart chip. The new chip allows the Hewlett Packard (HP) HP LaserJet 4200 Printer Series and our compatible Q1338A (38A) cartridge to interact and track toner usage. Without this chip your printer's toner level software will always think the Q1338A cartridge is low. Most other companies do not include a new smartchip with their toners. If you see a lower price elsewhere it probably mean they are not giving you a new chip.