As the opening post for Shared Engrams, I just wanted to record for all that the Casio IH-10 ink cartridge used by the Casio PJ-160L is actually the same cartridge used in the HP ThinkJet, HP part number 51604A. My local office supply store had the HP part in stock and it works perfectly! No need to seek out the original Casio part.
Briefly, the Casio PJ-160L is a full-size desktop calculator, clearly with an inkjet printer on-board with a 16-digit back lit LCD display. It can also do basic time calculation, print some basic graphs as well as the usual calculator and tax functions.
Key feel is good, responsiveness is adequate and certainly better than most average calculators. Print quality is very legible although some might consider the characters a bit light / fine in their appearance.
The only real negative I see is that it reverts to showing the time and date after a few minutes (nice) thus losing the last calculation and result (boo.)