I may have missed a page in this thread but I have not see a link to Ricoh 2010 annual report:
http://www.ricoh.com/IR/financial_data/annual_report/ar/10/ar00.pdf
They don't say much about digital cameras as they're lumped in "other" with a couple of services business. We do know that ¥1.9 billion was spent in R&D for what seems to be the photo (camera and associated stuff) area and that they experienced weak demand for their digital cameras. Quelle suprise!
Sales (in monetary terms) were down, worse in Japan than overseas. Cannot blame a strong yen for poor Japanese sales.
Still, quarter-to-quarter numbers looked good in 2010 and free cash flow (important if they're going to invest in R&D) looked very good indeed, up 300+%.
You can read the rest - it's a look into an unusual company. Could be that Pentax has found a very good home.