Lexmark 4021 User Manual page 240

Notices
All other trademarks are the property of their respective owners.
AirPrint and the AirPrint logo are trademarks of Apple, Inc.
Federal Communications Commission (FCC) compliance information
statement
This product has been tested and found to comply with the limits for a Class A digital device, pursuant to Part
15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
The FCC Class A limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference, in which case the user will be required to correct the interference at his own expense.
The manufacturer is not responsible for any radio or television interference caused by using other than
recommended cables or by unauthorized changes or modifications to this equipment. Unauthorized changes
or modifications could void the user's authority to operate this equipment.
Note: To assure compliance with FCC regulations on electromagnetic interference for a Class A computing
device, use a properly shielded and grounded cable such as Lexmark part number 1021231 for parallel attach
or 1021294 for USB attach. Use of a substitute cable not properly shielded and grounded may result in a
violation of FCC regulations.
Licensing notices
All licensing notices associated with this product can be viewed from the CD:\NOTICES directory of the
installation software CD.
Noise emission levels
The following measurements were made in accordance with ISO 7779 and reported in conformance with ISO
9296.
Note: Some modes may not apply to your product.
1-meter average sound pressure, dBA
Printing
Ready
Values are subject to change. See
54 (one-sided); 55 (two-sided)
28
www.lexmark.com for current values.
240