WorkCentre™ 5735/5740/5745/5755/5765/5775/5790
System Administrator Guide
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Internet Fax
Internet Fax allows you to send documents to one or more Internet Fax destinations, and receive an 
Internet Fax at the device without requiring a telephone connection.
The Internet Fax service provides confirmation of delivery in much the same way as for the standard 
Fax service, by returning the Delivery Status Notifications (DSN's) and Message Disposition 
Notifications (MDN's) for the job via the Internet.
Using Mixed Size Originals
It is recommended that the originals used with the Internet Fax feature are of the same size. If mixed 
sized originals are to be used ensure that the Mixed Sized Originals option is selected when performing 
an Internet Fax at the device. When the Internet Fax feature has been configured, select the Internet 
Fax tab at the device, followed by Image Adjustment and then Original Input. Mixed Sized Originals 
can be selected as an option.
Internet Fax Addressing
Recipient addresses can be added by entering the SMTP (Simple Mail Transport Protocol) address, for 
example, name@company.com, at the Internet Fax screen.
In addition, both an internal and a public address book can be configured for the device and accessed 
from the Internet Fax screen. Lightweight Directory Access Protocol (LDAP) provides access to the 
internal, or corporate, address book.
A public address book can be created from a list of names and addresses saved in a .CSV (Comma 
Separated Values) file.
Internet Fax Authentication and Authorization
Authentication (Service Access Control) can be enabled on the device to prevent unauthorized access 
to the network options. If Authentication is enabled a user will be prompted to enter a user name and 
password, before they can access the Internet Fax feature. For a full description of the Authentication 
feature refer to Authentication on page 155 of this guide. Authentication can be configured after 
Internet Fax has been installed.
Information Checklist
Before starting the procedure, ensure the following items are available or tasks have been performed:
• Ensure the device is fully functioning on the network prior to enabling Internet Fax.
• Ensure TCP/IP and HTTP are configured on the device as per Enable TCP/IP and HTTP at the 
Device on page 19.