ES523 jams, E3c0, E5A0, E570

[Desert Rat]

Re: ES523 jams, E3c0, E5A0, E570

Well, I was feeling fairly good today about that intermittent jam problem on that ES523.
Then they called back in, "same thing again" "When are coming over?" I will have to
go out tomorrow (Tuesday 9/19/17). Don't really have a clue. Could this be caused by
one-way bearings on the feed head or the transport rollers?
The customer sez that trays 1 & 2 don't work so they use the tandem tray all the time.
could those oneway bearings cause this type of problem?

DR

[blackcat4866]

Re: ES523 jams, E3c0, E5A0, E570

I generally try to do my own observing. Accounts from the enduser are misleading and often just incorrect.

I haven't had problems with the one-ways. Get the jam codes. =^..^=

[Desert Rat]

Re: ES523 jams, E3c0, E5A0, E570

Thanks Blackcat,
Your right about the customer, as far as they know it just jamming. I'm thinking the problem may be more in the drive. May be a clutch or something.
I'll check the last 10 codes and let you know.

Thanks

DR

[Desert Rat]

Re: ES523 jams, E3c0, E5A0, E570

Here are the last 11 codes. These will be from last Friday to today.
I am on site now and here are the codes in order.

1) E570
2) E570
3) E5A0
4) E5A0
5) E5A0
6) E5A0
7) E5A0
8) E5A0
9) E3C0
10) E713
11) E3C0

Prior to this was mostly E3C0 codes. As usual when I got here I ran about 30 pages some singles from the glass
and then a couple of sets of 14pgs through the doc feeder. No jams, Custom just ran 40 off the glass, no jams.
I'm going to check somethings here like destination and paper size. The book mentioned something about speed of the paper
for heavy paper. They're using 20lb, but may be it will help. I just don't know?
How about a motor speed adjustment? If the paper is not making to the sensor in time, may be boost the speed? Cause the paper is there, it's just late.



Thanks

DR

[blackcat4866]

Re: ES523 jams, E3c0, E5A0, E570

Most of these codes are occurring past the fuser. Fuser claws and beyond. Did you look at the gate? I can't remember. Is the left door latch broken? I seem to remember you saying that you tested the sensors in 03 mode, true?

I've replaced other things for post-fuser jamming but was wrong, like for example the gray rubber exit rollers, the left vertical path rollers. None of these actually fixed anything for me. =^..^=

[Desert Rat]

Re: ES523 jams, E3c0, E5A0, E570

Blackcat,
Yes I did test the sensors and then I replaced the sensors and actuators. Last June I replaced the last exit sensor and flag on the top of the door. This is the last
sensor in the path. I have cleaned the paper path rollers through the machine.
Is there more than one interlock switch on the left door? I found a switch on the side toward the front of the left door. When I push it the display did not
change. When I close the door it does change.
I have looked at the gate. It is not loose on the shaft, it does not bind when I move it. The bushings are not worn to the point of shaft wobble.
When I run a 1-2 job I can hear the gate operate. The rubber bumper is not worn.
I did not see it jam yesterday. The customer had it turned off when I got there. It warmed up, I ran 30 pages or so, customer ran 40 pages no jams.
I think the customer is gun shy now. If it jams once it's still the same jam.
Also I have been looking to define all the numbers behind the jam code. I'm looking for a clue.
I spent about an hour waiting for a jam to occur while I was looking through the paper feed theory.
May be it's just time for another machine.

Thanks

DR

[blackcat4866]

Re: ES523 jams, E3c0, E5A0, E570

... Is there more than one interlock switch on the left door? I found a switch on the side toward the front of the left door. When I push it the display did not
change...

I have not noticed.

... I have looked at the gate. It is not loose on the shaft, it does not bind when I move it. The bushings are not worn to the point of shaft wobble.
When I run a 1-2 job I can hear the gate operate. The rubber bumper is not worn...

The gate will get cracks that snag the edge of the paper, or will lose a finger.

... I did not see it jam yesterday. The customer had it turned off when I got there. It warmed up, I ran 30 pages or so, customer ran 40 pages no jams.
I think the customer is gun shy now...

This can be a hard thing to get past. Even after you've fixed the machine, every single jam becomes a crisis/emergency. It's difficult to point out that yes, there will be an occasional jam that you can't anticipate or prevent, and it's not a crisis. Just remove the jam and move on. =^..^=

[Desert Rat]

Re: ES523 jams, E3c0, E5A0, E570

I hope we are taking about the same gate. This gate is on the top of the paper path on the left door. It is actuated by a solenoid mounted in the upper right corner
of the left door. That gate feel smooth to the touch, the points do not have any cracks or divots that would catch the papers edge.
It opens enough without touching the paper.
Off the glass it delivers the page face up and through the ADF the papers come out face down to stay in order. This gate is spring loaded to send
paper down in the duplex path. But I see that is could even turn them face down from the glass. Is there a setting? I did not find one yesterday
while looking through the 08 mode programs.
I did see some speed settings for heavy paper but I don't think that would help.

DR