Ink-jet printer convenient for nozzle cleaning

The utility model relates to the technical field of ink-jet printing machines, in particular to an ink-jet printing machine convenient for nozzle cleaning, which comprises a dismounting mechanism, a cleaning mechanism is fixedly connected outside the dismounting mechanism, the dismounting mechanism comprises a motor bin, a control motor is fixedly connected inside the motor bin, a U-shaped supporting rod is rotatably connected above the control motor, and a nozzle is arranged on the U-shaped supporting rod. The code spraying device comprises a U-shaped supporting rod, a connecting ring pipe is fixedly connected to the upper portion of the U-shaped supporting rod, a code spraying nozzle is clamped in the connecting ring pipe, a spraying rod is in threaded connection to the upper portion of the code spraying nozzle, clamping rods are attached to the two sides of the spraying rod, one end of each clamping rod is in threaded connection with a two-way threaded rod, and the two-way threaded rods are embedded in a m