Mp tray FS-4200

It's the small door at the very front of the machine...located directly above the main paper feed tray. Just pull it open and lower it down. MP stands for Multi-Purpose and is for different paper types and sizes that are not available from the main tray.

Not necesarily so, it depends on how you have the printer configured. To test the MP tray, use the arrow keys to get to troubleshooting menu, press check, use arrow keys to get to paper path test, press check, set tray option to tray 1, then print test page. Printer should feed from MP tray. If it does, then the problem is that you do not have the printer set to print from MP tray first or you have the tray options set to exclusive which means that if your print job asks for tray 2 then printer will not print from MP tray unless you specify MP tray in the print options.

surf to Kyocera's website, download the latest software for your operating system, once you have the software installed you should be able to set all the options you would like in the printers control panel. such as start.. printers and faxes..... right click printer go to properties for all tray assignments and settings. (this instruction is for windows) bypass must be selected after you select print. hope that helps.

no because its a feed source for special paper it wants you to verify what you have loaded

try chaning the quality of the envelope, some do not respons well to heat.

first of all, if you don't get any massege on the screen of the printer, it's mines that you don`t select the MP Tray on the driver.
before you print you press the "print preference" button and choose the MP Tray at the Paper source

paper guide was set at A5, then this allowed menu to change feed tray selection

check the bypass transport connector for a small piece of paper. or the paper sensor arm is jammed down there are 2 one in the transport unit and one in the mp tray

If paper in mp tray it can print mp tray only,
There is no option to chane the settings.

Are there settings on the control panel of your printer?
Is the tray 1 the MP tray? (The one that flips towards you)
If so, can you change the settings of the Tray 1 to Envelope on the control panel?

I hope this helps.