Ink-jet printer maintenance method and ink-jet printer

The invention provides an ink-jet printer maintenance method and an ink-jet printer. The ink-jet printer maintenance method provided by the invention is applied to the ink-jet printer provided with a scanning strip, and the method comprises the following steps of in response to a nozzle maintenance instruction, controlling an ink box to perform an ink-jet operation for a preset test text, and controlling the scanning strip to scan a printed text printed by the ink-jet operation to obtain a scanned text; comparing the scanning text with the test text, and determining a blocked target nozzle according to a comparison result; and controlling the target nozzle to perform ink-jet operation so as to dredge the target nozzle through the jetted ink. According to the ink-jet maintenance method and the ink-jet printer provided by the invention, the ink-jet printer can be maintained, and the plug phenomenon is prevented. 本申请提供一种喷墨打印机维护方法和喷墨打印机。本申请提供的喷墨打印机维护方法，应用于设置有扫描条的喷墨打印机，所述方法包括：响应于喷头维护指令，控制墨盒针对预设测试文本进行一次喷墨操作，并控制所述扫描