Safety and Regulations WorkCentre
®
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20 User Guide
Other Countries
Copying certain documents may be illegal in your country. Penalties of fine or imprisonment may 
be imposed on those found guilty of making such reproductions:
• Currency notes
• Bank notes and cheques
• Bank and government bonds and securities
• Passports and identification cards
• Copyright material or trademarks without the consent of the owner
• Postage stamps and other negotiable instruments
This list is not inclusive and no liability is assumed for either its completeness or accuracy. In case 
of doubt, contact your legal counsel.
Fax Regulations
United States Fax Header Requirements
Fax Send Header Requirements
The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a 
computer or other electronic device, including a fax machine, to send any message unless such 
message clearly contains in a margin at the top or bottom of each transmitted page or on the first 
page of the transmission, the date and time it is sent and an identification of the business or other 
entity, or other individual sending the message and the telephone number of the sending machine 
or such business, other entity or individual. The telephone number provided may not be a 900 
number or any other number for which charges exceed local or long distance transmission charges. 
In order to program this information into your machine, refer to the customer documentation and 
follow the steps provided.
Data Coupler Information
This device complies with Part 68 of the FCC rules and the requirements adopted by the 
Administrative Council for Terminal Attachments (ACTA). On the cover of this device is a label that 
contains, among other information, a device identifier in the format US:AAAEQ##TXXXX. If 
requested, this number must be provided to the Telephone Company. A plug and jack used to 
connect this device to the premises wiring and telephone network must comply with the applicable 
FCC Part 68 rules and requirements adopted by the ACTA. A compliant telephone cord and modular 
plug is provided with this device. It is designed to be connected to a compatible modular jack that 
is also compliant. See installation instructions for details.
You may safely connect the device to the following standard modular jack: USOC RJ-11C using the 
compliant telephone line cord (with modular plugs) provided with the installation kit. See 
installation instructions for details.
The Ringer Equivalence Number (REN) is used to determine the number of devices that may be 
connected to a telephone line. Excessive RENs on a telephone line may result in the devices not 
ringing in response to an incoming call. In most but not all areas, the sum of RENs should not