1 From the secondhand account, the reader gets more background information about what the Oregon Trail was. 2  From the firsthand account, the reader gets a better understanding why it was so dangerous.
Printers generally age more by the number of pages printed rather than by pure years. The rule of thumb has always been whatever the recommended volume is (for instance 5000 pages per month for a P3005) multiplied by say five or six years so about 300,000 pages would be the life expectancy of the printer.
Printers are a type of computer peripheral device that fall into two broad categories: 2D printers that print text and graphics onto paper (or other media) and 3D printers that create physical objects. Common Types of 2D Printers. 2D printers are by far the most common type of printer. This category can be subdivided based on the type of technology used to transfer images onto paper. Modern printers generally fall into one of the following categories: inkjet: Sprays ink at a sheet of paper. Ink-jet printers produce high-quality text and graphics.