I had a similar problem and had to replace the whole drum cartridge.
I used the information here: http://www.support.xerox.com/SRVS/CGI-BIN/WEBCGI.EXE?St=312,E=0000000004939507520,K=2674,Sxi=14,Solu...
good luck.
Edith
Hi Carole Harper,
Thank you for using the Support Forum. Please make sure there is no damage to the drum. If this does not help please consider contacting your support centre for further assistance.
I am having problems printing documents from all types of programs and multiple computers to a Xerox 5500 printer. 75 percent of the time it only prints a vertical slice of the printed page. Does anyone know what I can do to fix this problem.