Understanding display messages1134. TroubleshootingSamsung does not recommend using a non-genuine Samsung tonercartridge such as refilled or remanufactured. Samsung cannot guarantee anon-genuine Samsung toner cartridge's quality. Service or repair requiredas a result of using non-genuine Samsung toner cartridges will not becovered under the machine warranty.a. Estimated cartridge life means the expected or estimated toner cartridge life, which indicatesthe average capacity of print-outs and is designed pursuant to ISO/IEC 19752 (see "Availablesupplies" on page 76). The number of pages may be affected by operating environment,percentage of image area, printing interval, media, percentage of image area, and media size.Some amount of toner may remain in the cartridge even when replace new cartridge appearsand the machine stops printing.