I have been using my 830 for a little while now and it seems to really use the pigment ink fast. Has anyone kept track of pages per cart (b/w text) on either the 830 or the 4200?
For what it's worth I've occassionally allowed a small bubble of air to migrate along the CIS tube to see how fast it's moving and I've noticed that the pigment black seems to zoom in comparison to the dyebase inks...
Add to that a block print in pigment black vs' a dyebase black page (plain paper vs photo pro paper setting) tends to soak the page in the former compared to the latter. I'm starting to understand why Canon were using the CLI-8 black for auto duplexing as the paper is very warped and prone to catching and tearing on the pigmented.
if u guys try to put ure printout on water, you would notice the auto duplex printouts consist of green + magenta (in another words all 3 colours) and yes black too... anyway... if u think ure ink is running out fast, try set the intensity to -ve part to save ink if ure just using it to print text documents. I must say after few days having that printer, my cyan ink level dropped quite a fair bit :x...prob have something to do with allignment tests