dell 5210n shuts down only when connected to ups

When the printer is plugged into the UPS it will sound the UPS alarm and then shut down the printer. If the printer is plugged directly into the wall outlet the printer stays on. The printer also has a MICR ship installed. Replaced printer with brand new printer and also replaced UPS with brand new UPS and the problem still exists. Here is what I have done so far.
1. Replaced UPS
2. Replaced Printer (under warranty)
3. Replaced power cord
4. Removed MICR chip
5. Removed the ethernet cable
6. Tried an outlet not around the original outlet

Notes: Another 5210N is plugged into the same UPS but on the Surge side and it never shuts down. Saw this flash before printer shut down. 58 Too many flash options installed.

Can someone shed some light on this for me please? Dell says these printers are not made to work with UPS and I find this hard to believe.
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sounds like its drawing too much power and UPS cannot handle the load.  either upgrade to a beefier UPS or do not use a UPS (surge side only)

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twillsonAuthor Commented:
That is what I am doing now, however because our department has to print checks and if the printer shuts down then they have to flash it again in order for the checks to printer correctly with barcodes and encrypted fonts.

One more note, the other 5210N stays on when connected to the Battery Backup side of the same UPS.
I agree with Jimmy: the UPS can't handle the load, so you'll need to get a bigger one.

Remember that laser printers use lots of power (about 1kW, say 10A at 110V) while printing. Unless your UPS can handle that it will shut down when you print.
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