Same cartridges, probably same print engine, so swappable parts highly likely. Networking is localtalk only, but they can be converted to ethertalk by means of an adapter, or printed to as standard appletalk printers by means of LaserWriter Bridge from anything up to X.5. For Windows usage you're on your own; probably far from convenient or easy to do.
Models like the LW 4/600 are indeed small enough to fit under a bed. A better bet, however, would be something like a LW 16/600, which is a good deal larger (top of the bed would work!) and noisier than the 4/600 but also much faster and more powerful, and which may still have a lot of life left in it, as it can be configured for IP printing rather than Appletalk. Toner is cheap and ubiquitous. It also has localtalk, ethernet (via AAUI adapter) and Parallel ports, all of which can be active at the same time. RAM readily expanded via standard 72-pin SIMMs.
A 4/600 is also more or less useless for anything graphics-intensive (incl. most PDFs) today without an über-rare RAM upgrade card. Don't ever buy one unless it has 6MB of RAM already installed in it. I think these were specific to this machine only, and are not found in the HP you have.
Now, having said that, the 4/600 is my favourite printer for most uses: quiet, energy-savvy, crisp 600DPI output, cheap to run, and perfectly matches my favourite beige machine, the 8600. — Mine has the RAM card, as otherwise the constant Postscript errors would cause me to consign it to a shelf rather than use it more or less daily.
Models like the LW 4/600 are indeed small enough to fit under a bed. A better bet, however, would be something like a LW 16/600, which is a good deal larger (top of the bed would work!) and noisier than the 4/600 but also much faster and more powerful, and which may still have a lot of life left in it, as it can be configured for IP printing rather than Appletalk. Toner is cheap and ubiquitous. It also has localtalk, ethernet (via AAUI adapter) and Parallel ports, all of which can be active at the same time. RAM readily expanded via standard 72-pin SIMMs.
A 4/600 is also more or less useless for anything graphics-intensive (incl. most PDFs) today without an über-rare RAM upgrade card. Don't ever buy one unless it has 6MB of RAM already installed in it. I think these were specific to this machine only, and are not found in the HP you have.
Now, having said that, the 4/600 is my favourite printer for most uses: quiet, energy-savvy, crisp 600DPI output, cheap to run, and perfectly matches my favourite beige machine, the 8600. — Mine has the RAM card, as otherwise the constant Postscript errors would cause me to consign it to a shelf rather than use it more or less daily.