According to our research, these two products are almost identical. When compared, there are no major differences. Here is a more accurate comparison: https://www.druckerchannel.de/techinfo.php?m%5B%5D=5605&m%5B%5D=5539

hi the information from digitec is probably wrong http://h10032.www1.hp.com/ctg/Manual/c06584213 duplex is possible. i also asked a colleague who owns one and he said that duplex is also possible. greetings

Thank you for pointing this out.

In standby mode yes, but if you unplug the printer completely, everything is off.

This should not actually be the case. Here is some help from Chip.de: https://praxistipps.chip.de/word-druckt-nicht-daran-kanns-liegen_42367