i hope my postings will be of help, the pdf link has the codes you want
it's a copy of the same operating manual that came with the machine
when i bought it new many years ago. i own and operate the same copier.
you'll also find parts like i recently ordered at the end of the xerox
800 toll free number, and there was a bonus included in our xerox parts
order, next day free delivery and a number 2 phillips screwdriver
"XEROX" to install the $75 part. we were very pleased with xerox. -bill
in buffalo ny