Epson Stylus Pro 7800 User Manual page 333

4. Click the Device Manager tab.
If your drivers are correctly installed, EPSON USB Printer
Device should appear on the Device Manager menu.
If EPSON USB Printer Devices does not appear on the Device
Management menu, click the plus (+) sign beside Other
devices to view the installed devices.
If USB Printer or EPSON Stylus Pro XXXX appears under Other
devices, the printer software is not installed correctly.
Proceed to step 5.
If neither USB Printer nor EPSON Stylus Pro XXXX appears
under Other devices, click Refresh or unplug the USB cable
from the printer, and then plug it into the printer again. Once
you have confirmed that these items appear, proceed to step 5.
Problem Solver
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