The printer interface type also refers to the type of interface used between the printer and the computer. This indicator can also indirectly reflect the speed of the printer output. The main interface types of printer products on the market today include common parallel interfaces, professional SCSI interfaces, and mainstream USB interfaces.
Among the three interfaces, the SCSI interface printer is connected to the computer by a professional SCSI interface card, which can realize a large exchange rate of information traffic, thereby achieving a higher printing speed. However, since this type of interface is cumbersome to operate when connected to a computer, the chassis cover of the computer must be opened each time it is installed. For those computers that do not have a dedicated SCSI slot, this type of interface printer is Unusable, so its scope of application is not extensive. The USB interface is rapidly emerging in the printer interface type by virtue of its support for hot plugging and fast output. Therefore, some models of mainstream printers in the market have both parallel and USB printing interfaces.
Parallel Printer interface