When sending faxes there are various factors which may affect fax send quality and what the receiving machine/fax number receives. These may include, but are not limited to:
Design of the fax including font size, colour and images.
- Colour: Elements within a fax should always be in pure black on a pure white background.
- Fonts: Sans-serif fonts are preferred over Serif fonts when faxing. Fine fonts, such as Arial, may not be as clear. We recommend using a softer, rounded font like Calibri or Verdana in a minimum size of 10, preferable size 11 or 12.
- Images: As fax conversion attempts to render content in black dots, colour items and grey elements often do not convert well. As above, we recommend any text, borders or logos be rendered as pure black.
Document format and properties such as whether the document was printed, scanned and then faxed, file format and resolution.
- 1Cloud Fax standard resolution quality is 204 x 98 dpi. Scanner settings for optimal faxing should not exceed 300 x 300dpi.
- Providing fax pages as TIF files: A TIF file provided with incorrect dimensions for faxing may only reproduce part of the page at the destination end.
- A TIF file provided for faxing should be 1728 pixels wide and 1100 pixels vertically (portrait layout).
The Receiving Machine. Please ensure you or your recipients print the received fax to show true receive quality, as PDF viewers may display the fax document at a lower resolution. Setting a PDF viewer’s zoom to 150% will give a result close to a printed copy.
Additional tips:
- We recommend avoiding large blocks of black as these can cause a fax document to take additional time for printing and use more of the receiver's toner supply.