Xerox 5855 slow pdf printing

[mdfurqan2012]

Dear all,
I have Xerox 5855 and 5875 in my printshop when I start printing bulk pdf files on that, machine prints 1st pdf file and wait for 10seconds than printing other pdf file.
I sent a job of 10 pdf file all files sent to the printer no job shows in printer queue but machine wait for 10seconds after each job.
I try both pcl and ps driver.
Kindly guide me

[MrXerox]

What are the file sizes?

[abdou]

You must reload software you find it in the web site Workplace and Digital Printing Solutions | Xerox via web page or altboot method