A:AnswerHi,
Yes, you can add black ink in all reservoirs and also color ink in the black reservoir. Printer doesn't know what ink its using. But, why do you want to do that? If you need only a mono-chrome printer, then buy a non HP black and white laser printer from BestBuy for only $169.99. Like;
https://www.bestbuy.com/site/hp-laserjet-m140we-wireless-black-and-white-laser-printer-with-6-months-of-instant-ink-included-with-hp-white/6484886.p?skuId=6484886
I will never add black ink in all reservoirs and ruin my $450 printer.
Hope this helps.
A:AnswerHello Jay. Unfortunately, the ET-3850 does not have a rear paper feed. The only way to load paper into the machine is using the cassette. Regards, Kevin - The Epson Team.
A:AnswerHello. You can load up to 10 envelopes in the paper cassette of the ET-3850. When you are ready to print, make sure to choose "Short Grain Paper" in the Extended Settings of the printer software on your computer. Regards, Kevin - The Epson Team.
A:AnswerHello Josee. The ET-3850 can only do two-sided scanning manually. While the printer includes Automatic 2-sided printing, it cannot automatically scan both sides of a document. Regards, Kevin - The Epson Team.
A:AnswerBasically the answer is it will not. Most stock paper is not going to be lightweight enough to print on this printer. Save your money if you need to print stock and look elsewhere.