User's Guide Solving Problems Operation Sounds Are Loud If operations sounds are too loud, enable quiet mode. However, this may slow down printer operations. o Windows printer driver Select On as the Quiet Mode setting on the Main tab. o Mac OS X printer driver Select System Preferences from the menu > Printers & Scanners (or Print & Scan , Print & Fax ), and then select the printer. Click Options & Supplies > Options (or Driver ). Select On as the Quiet Mode setting. Application Is Blocked by a Firewall (for Windows Only) Add the application to the Windows Firewall allowed program in security settings on the Control Panel . 65