Re: Nextpress 2100/2500
> What kind of maitenance is required on the Nexpress?
Firstly, keeping it clean. Diagnosing IQ problems and replacing / cleaning ORCs where necessary. There are lots of tips-and-tricks the technicians teach you that aren't covered in the Operator Support System (the manual). Don't ignore the small errors that pop-up - even if they aren't significant enough to stop the printing - they'll escalate into bigger problems.
ORCs need to be treated like new-born babies. They're very expensive; an imaging cylinder, here, costs the equivalent of about $1200. One scratch and you can throw it in the bin. You'll need +five+ every 400'000 A4s or so - that's 'letters' in American.

Imaging cylinders are not the only ORCs...
> How does the Nexglosser work?
The NexGlosser will gloss 120 gsm and up, coated paper only. You need to have the fifth unit option on your press to be able to put a coating of clear-DryInk on the prints.
The principle is that prints intended to be glossed are not fully fused on the press. The glosser acts as a second, longer fusing of the toner. The surface against which the toner is fused in the glosser is very smooth, giving the gloss appearance.