eS6560 that likes to "Wait"

**blackcat4866** · 02-12-2016

Not with plain paper, and only brief delays on LT Thick2, but on Ledger Thick2 it's the worst.

It will copy or print 4 pages (~35 seconds), then starts the "Wait" cycle of 120 seconds, then prints 4 more pages, then "Wait" for 120 more seconds, ... until the job is complete. The paper source does not matter, bypass or tray. Same effect on Thick1, Thick2, and Thick3 Ledger.

So far I've cleaned, then replaced the thermistors and adjusted thermistor spacing per manual. Checked continuity on lamps, thermostats, fuser harness, and modular connectors. Updated firmware to v.1261. Then I started experimenting with fixing temperatures. If I set Thick2 Heat Roller and Pressure Roller +10C, it will do 5 pages before the "Wait", but the wait is still 2 minutes. If I force the Pressure Roller lamp to stay on a minimum of 7 seconds, and the Heat Roller heater to stay on a minimum of 3 seconds, I can get 7 consecutive pages before the "Wait", and it's still 2 minutes of cooling my heels. Mechanically fixing pressure is being applied, and all the bushings and bearings are intact. There are no C4xx errors stored or cleared (no fuser codes).

The machine has only 75K prints, almost all color. There was a lot of drippy sticky toner throughout the fuser. I'm hoping that was caused by momentary forgetfulness of setting the proper media type.

I'm resisting the urge to order $1K boards. The Logic and IH boards are the only items I have not changed, that seem to make any sense. I anticipate that when the Thick2 media type setting is working properly we should have 25 or 30 consecutive pages followed by a 10 to 15 second warmup.

Maybe a power issue? Has anybody seen this? =^..^=

**Hansen88** · 02-12-2016

I am not familiar with that model but that sounds the same as happens on some other models that have thermopiles mounted on the frame of the machine under the fuser. If that machine has them clean them.

**blackcat4866** · 02-13-2016

Thanks for your response. AFAIK there are no additional thermistors on the machine frame, near the fuser. I kind of expected the firmware to take care of this (silly me). =^..^=

**Luther** · 02-13-2016

There is a thermopile behind the induction coil when you remove the fuse section its for the fuser belt and controls the induction coil and temperature for the fuser belt

**blackcat4866** · 02-14-2016

My friend found a bulletin. Apparently there are defective new Logic Boards. According to the bulletin there is a capacitor that doesn't hold voltage. The new part number for the eS6560 is: 6LK31534100

=^..^=