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While there is no single industry-standard product called a "WSPL printer driver," this term typically refers to the (Wasp Printer Language) drivers used for Wasp Barcode Technologies thermal printers, or it may be a typo for

Here are proven fixes, ranging from simple software resets to hardware cooling solutions.

Laser printers use a fuser unit that operates at 180°C–220°C. If the fuser thermistor fails, the printer may report a "hot" status back to the WSPL driver via SNMP (Simple Network Management Protocol). Windows then flags the driver as the messenger.

A modified (leaked from Chinese OEM) added: