Get the best results from your HP printing system. HP Smart technology1 and chemically-grown toner formulas in HP 645A LaserJet Print Cartridges work with your printer to deliver accurate, consistent color and reliable, cost-effective performance.
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Consistently outstanding colour print quality.
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Save time with all-in-one HP 645A LaserJet supplies. HP Smart technology1 makes automatic adjustments to optimize print quality and enhance reliability. Minimal user intervention saves time, improves productivity and lowers overall printing costs.