That's great news.
It would be nice if the dirty fan was blocking the airflow and that was your issue.
I've looked and don't see any common 'error 48' issues.
There is a removal and replacement procedure in the online user guides for the Fuser CRU and you may consider looking to see if everything looks clean and clear.
Please reply back if all goes well so we can learn from your efforts.
Thank you for the information. I have removed the covers from the printer because, the error happened again and this time they left the printer on for me to see it. It says, " Cooling fan failure, Error 48". According to some other research I've done, usually the error 48 is for the fuser fan. I removed this fan cleaned it and re-installed the fan. With the covers still off I have restarted the printer. It has run for 2+ hours now with no error message, but what I am concerned ablut is the fan that sits below the fuser fan, about the middle of the back of the printer. I saw it turn on for about 2 seconds and then it shut off and has not turned on since. I think it is called the low voltage fan, I'm not sure, but I suspect this may be the actual troubled fan. I am going to leave the printer run for the day and if no other errors are apparent then I'll button it up and call it a day.
Thank you for using the Xerox forum.
I would suggest that you review the Phaser 7750 Support site for a possible solution.
There is a troubleshooting flow Q&A that may help identify the issue.
If that does not resolve your issue you may consider contacting our specific product support experts at the following link: Customer Technical Support Fast Track to the Expert
Hello, new user here. I have a 7750 color printer. I keep getting warnings that a fan is not working. The people using the printer keep unplugging the printer or turning it off and then turning it back on before they tell me there is a problem. I cannot find an issue with the printer when I've looked at it. I have pulled the panels and I have cleaned all the dust out. I have unplugged all the connections and made sure the contacts are clean. When I have looked the printer over all the fans are working.
How do I diagnos which fan it is and does anyone have an idea if this is a fan issue or a board issue. If i've left anything out please let me know and I'll try to give the details.