Xerox DocuPrint C621, User Manual, Page: 92 / 200

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4.1 Types of Problems
If a problem occurs with the printer, and you are not sure of the cause, check the following
categories. Find out the appropriate problem category and resolve the problem by referring to
the solution described there. You may also solve some of the problems by yourself.
Problem List
Power Problems
• No power ..................................................... 78
• Frequent power failures ................................ 78
Printing Problems
LED is Lit, Blinking or Off
• Error LED is lit ............................................. 79
• Error LED is blinking .................................... 79
• Error LED is blinking .................................... 79
• Online LED is off ......................................... 79
• Data LED is not blinking after print
command is sent ........................................... 79
• No output although the Data LED is lit or
blinking ......................................................... 81
Unable to Print from Windows
• Unable to print .............................................. 82
• Unable to print when TCP/IP protocol is
used ............................................................. 83
• Unable to print when TCP/IP Direct Print
Utility is used ................................................ 83
• Unable to print in SMB environment ............. 83
• Unable to print in NetWare environment ....... 84
• When an error message is displayed
on the computer ............................................ 84
Unable to Print from Macintosh
• The printer selected in the Chooser
window is not displayed ................................ 85
• When an error message is displayed
on the computer ............................................ 85
Print Quality Problem
Blank or black copies are output
• A blank page is printed ................................. 86
• A completely black page is printed ................ 86
Faded, Dirty, Uneven, Shadowed or
Wrinkled Output
• The printed image is faded ............................ 87
• Black dots or stains are printed ..................... 87
• Black lines are printed .................................. 88
• Recurring stains are found ............................ 88
• Hair-line marks appeared in or around
black half-tone printing .................................. 88
• Shadows appeared around areas of solid
black printing ................................................ 88
• White dots appeared in areas of solid
black printing ................................................ 89
• Some parts are not printed ............................ 89
• Vertical blanks are printed ............................ 89
• Wrinkled paper ............................................. 89
• Printing is smudged ....................................... 90
• Printing is slanted.......................................... 90