Fs-1030d even when set tray1 as source will print from mp feeder if paper in it

Yes is does, but it is duplex, which means it prints one side, turns it and prints the other side. I don't think there are any printers that prints both sides in one pass. That would require two toner cartridges, one of them upside down!

The Kyocera FS-1030D is a double sided mono laser printer that provides value for money for individuals or small workgroups.

https://icecat.biz/en/p/kyocera/1102mh3nl1/fs-multifunctionals-fs-1030mfp-dp-11704283.html

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These are notarius for having a cabling problem.the cable that runs from the d/f to the main unit go bad. It's a process to change one I would seek help by a person that has done it. Could be the flag or accuator that the paper hits. Or just a sep roller can do a lot for a sick feeder.

the thing is that with plug and play equipment, when you plug it into the pc and turn it on Usb connections) , there is a small message just above the task bar which says installing driver for printer
it is the way that the pc recognizes the printer in a port
it may be best it you go to the control panel ,printers and devices , add a printer and install it properly

It is a Paper stepping Problem (common on kyoceras), you can try cleaning rollers with some alcohol, if problem insists you should take it for repair.

door. 3 Push down on the green lever. 24x Paper Jam, Check Tray 1 Gently open the ... Jam, Check MP Feeder Gently pull the jam straight out of the multipurpose feeder. 202 Paper Jam, Open Rear Door 1 Open the ... side to locate a green lever. Note: To clear the Paper Jam error message, you must remove ... above Tray 1 when the duplex function is in use. To clear this type of jam, follow the instructions under the appropriate paper jam message. Lever 4 Gently pull the jam toward you. 5 Insert the tray. Note: Make sure... under the print media is locked down. 23x Paper Jam, Remove Tray1, Pull Down ...

Someplace in the machine settings there is a setting labeled linking trays turn that off and your problem should be corrected.

That means whatever you are trying to print is set to feed from the MP tray or Multipurpose Tray. The tray that folds out that is used to feed thicker paper or envelopes in. Just check your print setup screen and tell it to feed from the lower tray or tray1. If that is what you were trying to do.

you can choose mp first in "paper handing" printer menu or print tray1 is A4 default in properties of printer software.

Ok.... I have these printers at work...and i think i have figured this one out :
Under setup menu , goto configure mp , then switch the settings from cassette to manual. You see these printers are used at Hotels where the bottom tray is for legal size paper used to make key packets and the mp is used for regular sized paper printing reciepts....Hilton family hotels use them for example....the next thing I'm trying to figure out is how to set it so I won't have to push the go button every time I print something

Menu> scroll to Paperhandling> MP Tray type>>(plain) try changing this to cardstock  <enter>
instead of MP Tray type do the same for Cassette if you desire....
Best, danakadan