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A 50 error code indicates a problem with the "maintenance unit".
This unit controls and cleans the printhead and ink delivery system. You will need a technician to figure out if this is the problem or some other component has failed.
According to the manual, the unable to clean error means a mechanical problem or a foreign object in the machine:
Open the scanner cover and remove
any foreign obstacles inside the
machine. If the error message
continues, disconnect the machine
from the power source for several
minutes then reconnect it.
- pull out the AC plug - put back the AC plug while holding down the "menu" button and keep holding it (15 sec) - now you are entering the MAINTENANCE mode and "error 46" pops up in the display - select 8 by using the arrow buttons ,push OK and select 0 and push OK - 00:00 00:01 OK (the display is showing this message) - now push the MONO button 25 times until you see PURGE: xxxxx - Select 2, push ok, select 7,push ok,select 8,push ok, select 3,push ok - the purge counter indicates now: purge: 00000 - switch off the printer ,switch it on - ready to print
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