e Studio 281C with MJ1101 finisher ... strange happenings.

[blackcat4866]

So the complaint is intermittent finisher jamming. They are "E" codes, so technically they are "jams", but very odd ones. Most of the time the rollers that advance the paper into the stapling tray just never turn ... and after 5 or 6 pages piling up it will give one of five possible jams. In order of occurrence:

E030: power On jam in finisher
EAE0: receiving time out jam finisher communication
EA21: paper size mismatch at finisher
EA40: door open jam finisher
EA20: paper transport stop jam at finisher

Usually the power On jams are caused by the enduser getting a jam condition, then flipping off the power to "fix" it. Of could it doesn't fix anything. But that's not the case this time.
The door interlocks are operating properly, and I know that the door isn't opening.

I was about ready to order a finisher control board, when the persistent burbling of the Bunn coffee maker caught my attention. Here's the math:
eStudio 281C: 12A
refrigerator: 0.9A
microwave oven: 11.6A
water cooler: 6.2A
Bunn coffee maker: 13.3A

Total peak load: 45A (on a 20 A circuit).

When I asked about it, the enduser admitted that the circuit blows every time they try to use the microwave. But it's the Bunn that really bothers me so I hook up the Fluke power quality analyzer, and unplug everything but the copier. My ground to neutral stays around 0.4vac, and the finisher works. Now I start plugging stuff back in. The fridge and microwave don't seem to make much of a difference, but the Bunn spiked the ground to neutral off the 5vac scale, an it immediately jammed.

Time will tell if the enduser actually relocates any of those other loads. It doesn't really bother me any, as long as they don't call and tell me about it. =^..^=

[arnh79]

It's amazing how many weird calls we can run into because of power issues. We invested in a Fluke monitor several years ago and it was worth every penny!

[blackcat4866]

It's amazing how many weird calls we can run into because of power issues. We invested in a Fluke monitor several years ago and it was worth every penny!

I was thinking just the same thing today. Of the hundreds of times I've set up the Fluke, there were only perhaps 2 or 3 times that I found normal acceptable power. The best part, is that it's really hard to argue with the Alpine graph that shows the spikes and sags. =^..^=