When you press the 
Menu button and select Fax Send Settings while sending a fax, you can
select these options.
| Setting | Options | Description |
|---|---|---|
| Resolution | Standard | Provides good scan resolution and print quality for most faxes. |
| Fine | Provides best scan resolution and print quality for faxes of small print and line art. | |
| Photo | Provides best scan resolution and print quality for faxed photos. | |
| Contrast | –4 to +4 | Adjusts the contrast for faxes; negative settings make faxes lighter and positive settings make faxes darker. |
| 2-Sided Scanning
(WorkForce 645 Series only) |
Off | Lets you fax 2-sided originals placed in the ADF. |
| On |