imageCLASS MF642Cdw: Orange triangle error message (Load Paper in Tray 1, but there is paper)

[pvirgin61]

When I print from our laptop I get an error message (little orange triangle lights up) then I push it once and it prints fine. What am I doing wrong?

[Tiffany]

Welcome to the forum!

So that the Community can better help, is the orange error indicator flashing or lit solid? Any other details you'd like to give will only help the Community better understand your issue. 
Thank you.

[pvirgin61]

We do not want to use ltr plain 1 we want to use the big tray at the bottom of the printer

[pvirgin61]

it is flashing and says load paper in ltrplain 1 but I open the tray and it is full of paper and not jammed

[tmen29]

Following bc I'm having the same issue...