Some scientists recognize another type of mutation, called a frameshift mutation, as a type of point mutation. Frameshift mutations can lead to drastic loss of function and occur through the addition or deletion of one or more DNA bases.
Normally printers are set at A4, but you can chose any size you want, as long as it does not go larger than A4, but use your printer's properties to find out more. Phil Walmsley Â· 8 years ago 1
The average shelf life of a standard printer cartridge ranges between 18-24 months after manufacture. This is true for brand new ink and toner cartridges made by the original manufacturer of the printer as well as remanufactured or compatible cartridges made by third party vendors. The amount of time a cartridge can be sufficiently stored is contingent upon some other factors beyond when it was manufactured.