Chapter 4 TroubleshootingCanceling Printing ……………………………………………………………………………………112Canceling printing from the operator panel ………………………………………112Canceling printing from a computer …………………………………………………112When Paper Jams ………………………………………………………………………………………114Paper jams in the front cover area(error codes:372, 380, 390, 391, 400) ……………………………………………115Paper jams at the paper exit (error code: 382) ………………………………116Paper jams inside the printer(error codes: 381, 382, 383, 385 and 389) ………………………………………116Paper jams in the duplex unit (error codes: 370, 371 and 373) ……119Paper jams in tray2/tray3 (error codes: 392, 393) …………………………120Unable to Print …………………………………………………………………………………………121Print Quality Problems ………………………………………………………………………………123Paper Feed Problems …………………………………………………………………………………126Displaying Error Messages ………………………………………………………………………127List of messages with error codes ……………………………………………………127List of messages displayed in English ………………………………………………130List of messages on the bottom row …………………………………………………130Restrictions on Windows ……………………………………………………………………………132Restrictions on Windows XP Service Pack 2and Windows Server 2003 Service Pack 1…………………………………………132Restrictions on Windows 7/Windows Vista/Windows Server 2008 R2/Windows Server 2008………………………………132