If you go to HP's web site, the color resolution of the 648c is 600x300 dpi. The color resolution of the 842c is 600x1200 dpi. It's also half again as fast. The 842c has passable photo quality, using ordinary paper. The 648c does has a photo cartridge (for about the same price you'll pay for the printer with this deal (which comes to $40, btw for that one, not 34), but it doesn't look like the photo quality is really passable. The 842 Looks like a WAY better printer to me. The epinions writeups on the 842 were much better (and reflected more knowledge of print quality) than the 648.
Bear in mind that ink on all these jobbies is expensive. Even going the refill route. There you can use a lot but you'll still be out $75 shipped for 14 or so refills. Big up front. So it may be false economy to save $20 on the printer upfront, when you'll pay the same high price for ink down the road, with much poorer results. Actually, if you go the usual store cartridge route, the 648 looks considerably more expensive, since its cartridges are 1/2 the size it seems, and still a bit more expensive. HP obviously is making its money on that job with the razor blades.
The 842c @ $60 net of coupon and $30 MIR looks like the better deal to me. Easily.
Bear in mind that ink on all these jobbies is expensive. Even going the refill route. There you can use a lot but you'll still be out $75 shipped for 14 or so refills. Big up front. So it may be false economy to save $20 on the printer upfront, when you'll pay the same high price for ink down the road, with much poorer results. Actually, if you go the usual store cartridge route, the 648 looks considerably more expensive, since its cartridges are 1/2 the size it seems, and still a bit more expensive. HP obviously is making its money on that job with the razor blades.
The 842c @ $60 net of coupon and $30 MIR looks like the better deal to me. Easily.