Printer only printing one copy - no mopier mode showing

[Mikemikk]

Just did a fresh install of Win 10 Pro 64-bit onto a brand new 446 GB SanDisk SSD (only 83 GB used).

I'm printing to an HP CP2025dn color laserjet, connected via USB, which worked fine before I switched to Win 10. (Was coming from - don't laugh - Win XP SP3. Had to switch to the new OS due to Adobe Creative Cloud not supporting it any more.)

Now when trying to print multiple copies from Adobe Illustrator CC, I can only print one copy at a time. It WILL print the number of sheets I request, but there's an insanely long pause between each printing of about 30 seconds. My printer doesn't have a hard drive but does have 96MB RAM installed - which has been more than enough to print graphics on my old XP OS. So I know it's not a RAM issue. (Most of the graphics I print are under 30MB anyway.)

I've been on tons of Google searches and everyone talks about disabling 'mopier mode', but that option does NOT show up; it's not that it's grayed out; it doesn't appear at all. I've been through every Device tab, every Printer Properties tab, and tried printing directly to the printer, which results in an error message.

Print settings under Advanced tab are:  spool print docs, start printing immediately, print spooled docs first. The printer driver that automatically loaded is HP CP202X PCL6 Class. 

I did not try installing a UPD (universal printer driver) because W10 automatically recognized my printer when I plugged it in. I didn't list the make of my machine because it was my brother-in-law's. He had a computer shop build it for him and it worked great for XP. Basic specs:  Intel i5 CPU, 3.2 GHz, 4 GB RAM. Hard drive specs were mentioned above.

At my wit's end. Any suggestions?