ECOSYS is an interesting approach to printer design. Instead of having very complex cartridges containing dozens of parts (as is common with HP and Canon), they make stuff like the imaging drum and developer unit last as long as possible, and the toner cartridges as mechanically simple as possible.
The idea is to keep cost per page and environmental impact to a minimum. The only supplies you'd normally need to worry about are the toner cartridges.
But that also makes them extremely picky about toner. Genuine Kyocera toner has abrasive cleaning beads in it to keep the drum in good shape, so third-party supplies can cause premature failure.
That said, they do tend to have substantially better cost per page than competing machines in their classes.
What I like about the C405 is that all the major wear items are readily replaceable by the end user. The drum units (which include developer), waste cartridge, transfer belt, transfer roller, paper feed rollers, and even fuser are very easy to swap out.
I can't imagine hitting the rated 100,000 impressions for the latter few parts and having to get a maintenance kit to replace them, but it's reassuring to know I can swap them out in minutes without calling for service.
The C405 is built around a nearly decade-old Fuji Xerox print engine design (dating back to the WorkCentre 6605), and it's exceptionally well-proven.
But Xerox machines often suffer from above-average running costs.
Anyhoo, got stuff to do, so ttyl.