Reset service tool v3400 download1/16/2024 And make sure the position of the " Power " button is still pressed. Please press the " Resume " button 5 times. With the “ Power ” button still pressed.Then slowly release the " Resume " button. Wait until the indicator light turns green.Then press the “ Power ” button without releasing the “ Resume ” button. Then, press the “ Resume ” button for about 2 seconds.Turn off the printer, but do not unplug the printer power cord from the power source.
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