What Windows operating systems are supported by the HP LaserJet CP1020 series?
The printer supports Windows 7 (32-bit and 64-bit), Windows Vista (32-bit and 64-bit), Windows XP (32-bit, Service Pack 2), Windows Server 2003 (32-bit, Service Pack 3), and Windows Server 2008 (32-bit and 64-bit). The latest drivers are available at www.hp.com/support/ljcp1020series.
From the official HP Laserjet Cp1020 Color Printer manual, page 22
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