The interface type refers to the type of interface used between the printer and the computer. This indicator can also indirectly reflect the speed of the printer's output. The main interface types of printer products on the market currently 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 achieve a high exchange transmission speed of information flow, thereby achieving a higher printing speed. However, the operation of this type of interface is cumbersome when it is connected to a computer. You must open the computer case cover every time you install it. For those computers that do not have a dedicated SCSI slot, this interface type printer is It cannot be used, so its scope of application is not wide. The USB interface is rapidly emerging among printer interface types due to its support for hot-plugging and fast output speed. Therefore, some models of mainstream printers currently on the market have both parallel and USB printing interfaces.