User manual

98.05.08.09.00
Color LaserWriter 12/600 PS Troubleshooting 2–20
Note 10 The DC controller has detected incorrect timing at carousel position
sensor PS4. This is consistent with a jammed carousel.
Over the phone, ask if the printer has been on-line yet. If it has not, the
problem is likely in initial setup, most likely in the handling of the toner
cartridges. Make sure that the customer has removed the sealing tape
from each cartridge and that the cartridges are correctly installed.
If the printer has been operational, ask if the carousel knob is able to
advance the carousel. If necessary, you might also play the carousel
rotational sound to the customer. If the knob operates properly, and the
customer can confirm carousel movement during startup, the problem is
likely with connections or intermittent blockage.
On site, remove the top and left covers. Switch on the printer and try to
determine if there is any mechanical drive trying to rotate the carousel.
If there is, the printer drive assembly is probably not at fault. If the
carousel does rotate, then the toner carousel assembly is faulty only if
the position flags on its rear face have been damaged.
If there is obvious blockage of the carousel, clear it if possible. You can
remove the toner release assembly if you need better access. Examine
the toner carousel interlock. If it is broken, replace it.
If there is no evidence of blockage, reconnect J2006 and J2016 on the
mechanical controller board and test the printer. If the problem
persists, work inward and confirm the cable connection at the carousel
position sensor, replacing the photo-interrupter as required.
Note 11 The DC controller has detected an error in the laser/scanner assembly.
On site, check connections at J102, J110, and J111 on the DC controller
board and at the connectors on the laser/scanner assembly. Test the
printer. If the problem persists, replace the laser/scanner assembly.
Note : In rare instances, a faulty cable could also return this error.
Note 12 The DC controller has detected a main motor error. On site, remove
J2013 from the mechanical controller board and reconnect it. Test the
printer. If the problem persists, replace the main motor.
Note 13 The DC controller has detected a drum motor error. On site, remove
J2015 from the mechanical controller board and reconnect it. Test the
printer. If the problem persists, replace the printer drive assembly.
Sound