Unload output tray

Ice sitting for a long time in the tray sometimes freezes the mechanism. Try unloading the tray of ice. Make sure nothing is jamming the parts that dispense the ice. Wait for new ice to be made and see if it works.

maybe the exit tray sensor is fault

Take out the paper! just kidding :)
I guess it's a problem with a sensor in the output tray that has either fallen off or got stuck in an up position by some paper.
Either you put it back, remove the paper that is stopping the sensor from moving freely or call an engineer

Apparently the machine is telling you to remove the copies made from the output tray, probably it is getting heavy.

hi . check the flag sensor in the output tray . if you move the flag sensor up it should come down when you loose it

HiYa dh1200s

The softener tray needs to be cleaned out or the sensor for this replaced.
Yes, not enough water entering machine so not enough water to rinse out the softner

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Check the little black piece of plastic that senses the printed page exiting the machine. Our sensor was stuck and I was getting the same message (an similar Ricoh product). When I gently reset the black piece to center, moving freely, printing worked again. I think the sensor got jammed up when we were trying to remove a bad paper misfeed.

Ricoh manuals very confusing on this error message. They refer to standard tray, tray one, etc. without being clear whether it's a paper feed tray or the so-called "standard OUTPUT tray." The output is not really a tray, it's just the depression where your sheet lands after printing. I wrenched on the paper feed trays and their settings for an hour before I figured out they meant OUTPUT.

There is an actuator that is knocked off its mounting.
It is towards the front of the machine, right by the output rollers.
It would be about 3 inches long and have a couple of flag shaped lobes on it. All it needs is cliped back into place. There are 2 metal tabs with holes in it to insert the ends.
That is your problem.

Hi, there must be an actuator of the output tray sensor.It is placed above paper tray, just in place when paper exit from machine.Try to clean sensor,or to place actuator in proper place-pull it down.Also,maybe is actuator broken.