Yeah, I don't understand that part of electronic device design: Using a single indicator to show more than one different condition.

I mean, I'm all for simplifying displays and making them attractive, but would it have killed them, price-wise, to have used a second LED to indicate a paper jam? Are LED's really that expensive to source?

And when you use a single LED but have different blink patterns or colors to indicate different conditions... That's painful. For instance, I've got a few different chargers for various cameras batteries and R/C toys. They all have a completely different way of indicating when the charge cycle is complete, and they all have only the single LED labeled "charge". For each one, I have to look up in the manual what it means. One of them, the green light goes out when it's charged, another, the red light goes out when it's charged, another, the light changes color when it's charged (changes to red rather than the expected green as a matter of fact), another, the light (colored yellow) stops blinking when it's charged, etc. How tough would it have been to design the product to have two LEDs, A red one labeled "charging" and a green one labeled "charge complete"?

When those designers die and go to hell, they shall forever be forced to carry an ever growing backpack of product manuals until they are crushed beneath the weight.