One network printer, different print speeds. Why?

Question

Windows

We have one Xerox network printer and three Windows 7 computers.
From one, the job flies to print in seconds, from another in minutes, from the third in ten minutes.
Network connection speed does not affect - tried Wi-Fi and wire.
What to check first?

Answer 1

At the time of sending and before printing, view the printer's print queue (start-printers-open the one you need). There will be a column, I don’t remember the name, it indicates how many bytes of information must be transferred to the printer and how many are transferred. Compare the weight of the file (how much to transfer) on all three computers; print, of course, the same document.
There is an opinion that they send a file in different formats. Someone in bmp (and it is uncompressed, compare the same image in it and in png, for example), and someone in a less heavy one.

Answer 2

Install the same drivers and the problem will go away! Such a disease is present in Xerox.

Answer 3

Perhaps the problem is also in the computers themselves - different configurations and processor load due to various programs and antiviruses.