Epson printers are designed with a maintenance counter that tracks how much ink has been flushed into the waste ink pads. Once this counter reaches 100%, the printer locks down to prevent ink overflow, which could damage the printer or create a mess.
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The is an adjustment program (AdjProg) used to resolve the "service required" error, which occurs when the printer's waste ink pads are officially "full" and need to be reset to continue printing. Key Features Epson printers are designed with a maintenance counter