User manual

98.05.08.09.00

Color LaserWriter 12/600 PS Troubleshooting 2–21

Note 14

The DC controller has detected an I/O controller fan error. On site,

remove J2010 from the mechanical controller board and reconnect it.

Test the printer. If the problem persists, replace the I/O controller fan

Note 15

The DC controller has detected a fuser fan error. On site, remove J2012

from the mechanical controller board and reconnect it. Test the printer.

If the problem persists, replace the fuser fan.

Note 16

The DC controller has detected a main fan error. On site, remove J2019

from the mechanical controller board and reconnect it. Test the printer.

If the problem persists, replace the main fan.

Note 17

When all four lights ﬂash, there is an error that could not be detected

within the short span of POST. There are three errors of this type, the

laser/scanner error and certain kinds of fuser and carousel errors.

Note

: The type of fuser error that ﬂashes four lights during POST will

appear as a detected fuser error (yellow + zero) if you switch off and

immediately restart the printer.

Over the phone, ask the customer to restart the printer. If the four lights

resume ﬂashing, the problem is probably in the laser/scanner assembly

or carousel, in that order. If the fuser error appears, go to note 4.

On site, initiate EPOST and act on the resulting error code.