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.
Best Answer: It really depends on the printer type: Inkjet, Laser, Dye Sublimation are usually listed how many pages they can print per minute (i.e. 24 pages per minute or ppm).Dot Matrix printers are rated in how many characters per second they can print (i.e 80 characters per minute or cpm).Thermal printers are rated in how many Inches per Second of media they can produce (i.e. 8 inches per second or ips).Line printers are rated in how many lines of print per minute they can print (i.e. 1400 Lines per Minute or LPM).Source(s): Denver Al Â· 4 years ago.hermal printers are rated in how many Inches per Second of media they can produce (i.e. 8 inches per second or ips). Line printers are rated in how many lines of print per minute they can print (i.e. 1400 Lines per Minute or LPM). Source(s): Denver Al Â· 4 years ago.