Ricoh MP C305SPF slow printing with large pdf files

[aktasson]

The most common explanation is that the printer driver is set to WSD.

Ensure you have the driver port set to IP not WSD

& the driver is not the generic but Ricoh PCL 6

The wsd feature is turned off on the machine. And customers pc uses the original pcl6 driver. No universal or built-in driver.
The standard tcp/ip raw port (9100) printer port is used.

[slimslob]

The wsd feature is turned off on the machine. And customers pc uses the original pcl6 driver. No universal or built-in driver.
The standard tcp/ip raw port (9100) printer port is used.

Have you checked to be sure. Windows 10 likes to install everything as a WSD port. Just because there is a PCL6 driver installed does not mean that it is the driver being used. If Windows auto detected the device, you might have a driver using the WSD device and Microsoft's Ricoh class driver. Both of which will cause slow printing.

[mikadonovan]

Have you checked to be sure. Windows 10 likes to install everything as a WSD port. Just because there is a PCL6 driver installed does not mean that it is the driver being used.

This is accurate, something to check.