Sorry to hear about your install problems. Unfortunately, these things happen from time to time & none of the suppliers (even Xerox) are excluded.
The only suggestion for the future is to be familiar with machine expectations (such as the 300 gsm issue).
While Xerox is quite good, we recently experienced the following:
1- We replaced a 5 yr old 4110 w/external fiery with a 4112 w/external fiery.
2- It took forever & conversations with 5 different people to get Xerox to explain the capability differences between what they called the Xerox Print Production Package as bundled with the 4110 versus the Compose & Impose options as offered with the 4112 so as to make sure we did not leave out a needed feature or function on the new unit.
3- In an attempt to get our sale into calendar year 2010, Xerox took our order on Dec 22 & delivered on Dec 28 (including time off for Xmas & a snow day). We told them we were not in any rush since the 4110 was operational & would be swapped out. So, of course, the trucker removed the 4110 & delivered the 4112 on Dec 28. Then we found out that there were no service personnel available for installation until after Jan 1 as many took vacation for the holiday, leaving us without a machine (we do have another unit-Nuvera).
4- Also note that this does not help Xerox as they must complete installation before they can record the sale.
5- We screamed loud & they directed a tech to us for the install on Dec 29.
6- But the systems analyst was also on vacation that week. So they found (2) other analysts who showed up before the unit was uncrated & installed. And the analysts were not familiar with the Fiery & had difficulty with the install & networking. They even told us that we were missing a dongle for the "Compose" software which we discovered was installed in the Fiery PC after they left.
7- Prior to the delivery, a Xerox tech visited & told us the waste bottles & toner fro the 4112 were different than for the 4110. We spent a day+ trying to get our sales rep to place an order for toner, etc, as the machine only comes with (1) cartridge & we can't order toner until the machine serial number is placed into the system. That takes several days after installation is complete.
8- When the tech who did the install (he was terrific) got on site, he proceeded to tell us that we would use the same toner & same waste bottles as on the 4110.
9- During our 4+ years with the 4110, Xerox changed toner part numbers 3 times, resulting in confusion as to which toner is correct. We are still waiting on an explanation so we understand what this is all about.
10- Apparently, some users of these machines (4110 & 4112) use different toner than we are using.
11- In the middle of the installation, the Xerox trainer showed up.
11-A- She could not train but hung around for 4 hours
11-B- Our people do not need any training as we have been doing this a long time & the 4110 was almost identical.
We are pleased with the machine, but as you can see from the chronology above, Xerox is not immune from the issues faced on the KM 8000 install.