Lexmark W820 User's Guide - Page 314

80 Scheduled Maintenance What this message means: The printer requires replacement of routine maintenance items to maintain top performance and avoid print quality and paper feed problems. What you can do: Replace the maintenance items and reset the printer maintenance page counter. See also: Replacing the items in the maintenance kit; Replacing the fuser; Replacing the transfer roller; Replacing pick rollers; Cleaning the wiper blade; Resetting the maintenance page counter 88 Toner Low What this message means: The print cartridge is low on toner. What you can do: • Replace the print cartridge. • Press Go to clear the message and continue printing. You may notice reduced print quality. See also: Replacing the print cartridge 900-999 Service What these messages mean: Messages labeled 900-999 relate to printer problems that may require printer service. What you can do: Turn the printer off and check all cable connections. Turn the printer back on. If the service message recurs, call for service and report the message number and description of the problem. See also: Calling for service 312