Print Head Printhead Fits For EPSON POS TM-U220PD M188D 220PD TM-U220PA U220PB

After 24 hours, try executing the print head cleaning function. Standby for 30 minutes, clean the print head, standby for another 30 minutes, clean the print head again, and repeat this process. You'll notice the printing quality improving with each cycle.

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