Hello, I've a DFX 9000 Epson printer connected to a PC running with to applications under windows 7. This printer is printing very good with one of the two applications, while its printing is a bad with the other which supported with SQL 2008 database!. For example: http://d.up-00.com/2018/10/153958323924282.jpg
You can try reinstalling your printer driver. Or you can disable some of the applications you don't need. They may be interfering with your Epson dfx 9000 driver.
When you reinstall, select the option that allows you to choose features instead of the automatic one. The latter will force you to use apps that you don't even need, thus affecting your printer's efficiency.