That is good to know, most of our printers are Kyocera TaskALFA printers, too. They are rather large, indeed.
But like I said, hardware-wise, they haven't given me much trouble (except for a power supply with very slight fault, causing it to make kind of chirping noise every once in a while - it drove our accountants crazy - our field service guy tried replacing the hard drive, the heater, and some other thing (I forget which one), before finding the faulty part). Also, trying to print on paper that is just ever so slightly wet can be... interesting, if one happens to need to print out some one hundred pages. sigh
A couple of years back, when I was still working as a programmer, I was once given the task to write code controlling a specialized printer, the kind used in factories for printing bar codes on things. The printer used a continuous stream of ink that normally went into a tube feeding it back to the ink tank. The ink contained tiny iron particles and went through a magnet that could direct it to the position it should land.
When powering off the printer, the software controlling it had to make sure to first send the command to move the ink-catching tube right up to the nozzle before shutting down the pump, or else the printer would ... kind of soil itself. ;-)
Of course, the first time I tried to actually print something with that printer, I forgot to shut down the printer properly, and it soiled itself in a big way. Specifically, the stream of ink went through a teeny-tiny hole in a small diamond platelet; when I shut down the printer impromperly, ink stuck to that platelet and dried up, so that tiny little hole was no longer perfectly circular. As a result, whenever I tried to print something, the machine would soil itself some more.
After talking to the manufacturer's customer support repeatedly (in their defence, they were friendly, helpful and competent), a support technician told me to remove the platelet from the printer and put it in a bath of MEK (industrial-strength solvent) over the weekend to dissolve the dried remnants of ink (after I had cleaned that platelet manually several times).
The solvent was fairly volatile and highly flammable, so I put it in a small jar, dropped the platelet in the jar and screwed the top on as tightly as I could.
When I came back on Monday, the platelet was indeed clean and gave me no trouble whatsoever after that. The plastic coating covering the inside of the jar's top, however, had "molten" almost completely.