I don't know what I did then to get it working.
The printer is attached to an old PC running Ubuntu Oneiric Ocelot LTS running CUPS.
I can print remotely from Windows (XP & 7) IPP & LPR, I can print from Linux directly and via IPP from other Linux PCs and I have set up airprint to work with IOS 5 & 6 as well as Google Cloudprint. All of these cause the printer to burst into life even if left dormant overnight. The Xerox Phaser 6000B driver works fine and I have a RAW share for remote machines with local drivers.
Well, part of the problem is that after going into sleep mode and rebooting, if you are using Windows you should see that in debice manager there is an error on 'USB pringing support'. This goes away after manually waking the printer and replugging in the USB port. Again, this only happens with the Dell driver, not the Windows update version of the 1250C driver.
If your printer is attached to a Linux machine you won't have this issue.
The first post on this issue was Sept 2012 and since then Dell have chosen to totally ignore both the issue and their customers.
It's highly unlikely that they will address it four months down the line?
Owners of this Dell product need to accept that they were sold a defective product and have received no assistance from Dell. They (the customer) also need to remember this when they next choose a manufacturer from which they intend to purchase future products.
Shame on you Dell, shame on you.
Same problem here. I'm using an LPR USB print server. We have to remember to turn off/on the printer before sending anything to print. I have tried the latest firmware. No support from Dell at all.
In the early days of Dell, which was also when I started my own consulting business, a Dell tower was the first computer we bought, with which I was delighted. Some years later we bought a few Dell laptops, which had excellent technical specifications but were nothing but trouble, with various components, particularly keyboards failing early. This put me off from buying Dell until making the current relatively cheap purchase of the 1250C printer. Low and behold we immediately hit the problem described in this thread. Worse is that whilst Dell used to at least fix things that went wrong, this printer issue suggest that even that has deteriorated, presumably unless you happen to be a large corporate. Well as a consultant in the industry I find myself advising large clients, certainly being asked for my opinion. Guess what my response will be now regarding Dell!
I returned my two pieces <ADMIN NOTE: Profanity removed as per TOU> to the store and got a full refund. Dell are never going to do anything about this!
I have been having fewer problems since I set the Print Processor (Printer properties, Advanced Tab) to winprint, RAW [FF appended]. Perhaps it needs the extra formfeed to separate jobs. It was hanging printing multiple jobs otherwise.