Then we look at the next fault, the common fault is the charging tank has ink, if it is reported this fault, we need to look at the charging tank here:

And here, is there ink:

If there is ink, we should wash the charging tank clean, spray cleaning liquid:

Here is also a spray of cleaning fluid:

Especially in this gap, but also spray some cleaning liquid:

After spraying clean, then we blow-dry it as well, blow-drying this charging slot:

After blow-drying and then we turn on normally, the problem is generally solved.
This is ink on the charging tank.