Maintaining the printer
Warning—Potential Damage: Failure to maintain optimum printer performance, or to replace parts and supplies,
may cause damage to your printer.
Ordering supplies
To order parts and supplies in the U.S., contact Lexmark at 1-800-539-6275 for information about Lexmark authorized
supplies dealers in your area. In other countries or regions, visit the Lexmark Web site at
www.lexmark.com or contact
the place where you purchased the printer.
Using genuine Lexmark parts and supplies
Your Lexmark printer is designed to function best with genuine Lexmark supplies and parts. Use of third-party supplies
or parts may affect the performance, reliability, or life of the printer and its imaging components. Use of third-party
supplies or parts can affect warranty coverage. Damage caused by the use of third-party supplies or parts is not covered
by the warranty. All life indicators are designed to function with Lexmark supplies and parts, and may deliver
unpredictable results if third-party supplies or parts are used. Imaging component usage beyond the intended life may
damage your Lexmark printer or its associated components.
Estimated number of remaining pages
The estimated number of remaining pages is based on the recent printing history of the printer. Its accuracy may
vary significantly and is dependent on many factors, such as actual document content, print quality settings, and
other printer settings.
The accuracy of the estimated number of remaining pages may decrease when the actual printing consumption is
different from the historical printing consumption. Consider the variable level of accuracy before purchasing or replacing
supplies based on the estimate. Until an adequate print history is obtained on the printer, initial estimates assume
future supplies consumption based on the International Organization for Standardization* test methods and page
content.
* Average continuous black declared cartridge yield in accordance with ISO/IEC 19752.
Ordering toner cartridges
Notes:
• Estimated cartridge yield is based on the ISO/IEC 19752 standard.
• Extremely low print coverage for extended periods of time may negatively affect actual yield.
Item Return Program cartridge
For the United States and Canada
Toner Cartridge 521
* This toner cartridge is supported only in MS811n, MS811dn, MS812dn, and MS812ne printer models.
For more information on countries located in each region, visit
www.lexmark.com/regions.
Maintaining the printer 248
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