docucolor 12 error code 8-306

[Francisco Torres]

Hi, my dc-12 present an error code 8-306. At the display panel; it doesn't show the black squares for magenta, cyan yellow and black when go to print; so, auto re-try to star to print once and again.
thanks for any help.
Frank

[xcopytech]

8-306 Drawer lnterfock Open
The Drawer lnterlock is detected open.