プリンタの異常動作はマルウェアの影響？

下記の記事が出ている。

　Is your printer spewing gibberish? Could be malware
　CNET: June 22, 2012
　http://news.cnet.com/8301-1009_3-57459098-83/is-your-printer-spewing-gibberish-could-be-malware/

　Printer bomb malware wastes reams of paper, sparks pandemonium
　ars thecnica: June 22, 2012
　http://arstechnica.com/security/2012/06/printer-bomb-pandimonium/

　Office printers spew reams of garbage as 2-year-old Trojan runs wild
　Register: 22 June, 2012
　http://www.theregister.co.uk/2012/06/22/trojan_spews_gibberish_print_runs/