How often should toner and ink cartridges be replaced or refilled to prevent print quality issues, and are there signs to watch for that indicate it's time for replacement?

How often should toner and ink cartridges be replaced or refilled to prevent print quality issues, and are there signs to watch for that indicate it's time for replacement?
Admin on May 18 2025 at 01:35 AM in Printer and copy machine maintenance
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