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Bom dia, tenho uma impressora HP 7740 que está apresentando um erro na Unidade USB, sendo que não tem nada na unidade.
E logo após, aparece outra imagem na tela com as 4 unidades e só resolve deligando o equipamento.

Esse erro está muito constante, chegando a apresentar com a impressora realizando uma impressão,  e ela trava.



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