On June 4, Ricoh Americas unveiled the Aficio SP 3500N and SP 3510DN A4 monochrome laser printers and the Aficio SP 3500SF and SP 3510SF A4 monochrome MFPs. According to Ricoh, the new machines are perfect for corporate workgroups, small businesses, and home offices. The new Aficio SP 3500N, SP 3510DN, SP 3500SF, and SP