PPM is an acronym for "pages per minute" in printing. In marketing, the term is used to indicate the speed of a printer. Printer manufacturers use the PPM value to compare one model's performance with that of another. The PPM value is usually displayed as the maximum number of pages that the printer can print in one minute. For example, if a printer's PPM value is set at 100 pages per minute, then it can print up to 100 pages in one minute. Printers usually have a PPM rating printed on their box or sticker attached to the machine. If a printer's PPM value is not listed on its packaging, you can find it by asking the manufacturer or visiting websites such as PrintersRazing.com. A common misconception is that printers print at a constant rate no matter how many pages they are printing. This is not true; instead, they print as fast as they are able to feed paper into the printer. The faster the paper moves through the printer, the more pages it will be able to print in one go.