Konica Minolta C284e Duplex Paper Jamming

[mearmi]

Hi

Getting paper misfeed when make double sided copy. Single prints are fine.

Replaced the Duplex Unit, Fuser Unit and Exit Assembly but still same problem.

Please also find the attached photo.

Thanks for your advice.

[byronf]

Hi,
Please supply us with the Jam code.

[allan]

What size paper is that?

[blackcat4866]

What size paper is that?

B4 is my guess. =^..^=

[mearmi]

What size paper is that?

A4

[tsbservice]

Try to replace duplex drive clutch.

[mearmi]

Try to replace duplex drive clutch.

Can u send me pick or part number

thanks

[Synthohol]

what is the actual jam code?
does it do that on LEF as well?

[tsbservice]

Can u send me pick or part number

thanks

A161M20201 Clutch
It's part of Main drive, near Transport motor M1.

[mearmi]

what is the actual jam code?
does it do that on LEF as well?

Yes It does the same with LEF

Jam Code is: 9310

Thanks

[allan]

A4

And my uncle is a monkey.
How you going to get that "A4" thru that machine LEF.

[mearmi]

And my uncle is a monkey.
How you going to get that "A4" thru that machine LEF.


Sorry couldn’t get that???

it takes from A5 to A3

[tsbservice]

Picture he posted paper is A4-R(SEF), it also jams on A4(LEF). Тhat is my understanding.

[blazebusiness]

And my uncle is a monkey.
How you going to get that "A4" thru that machine LEF.

I think you might be confusing A4(letter) and A3(11x17) sizes.

[blazebusiness]

Yes It does the same with LEF

Jam Code is: 9310

Thanks

There is a common issue on this series with the spring on the exit guide. You can fix it by trimming the spring a little to increase pressure.

[Synthohol]

1.11.2 93-10
(1) Contents


JAM type
Misfeed at duplex transport section


JAM code
93-10


Detection timing
93-10
The ADU paper passage sensor/2 (PS41) is not blocked even after the set period of time has
after the ADU paper passage sensor/1 (PS40) is unblocked by the paper.


-
In case the ADU paper passage sensor/1 (PS40) is unblocked or the ADU paper passage se
(PS41) is blocked after main power switch is turned ON, door and cover are opened / closed
trouble reset is done, it is regarded as paper jam at duplex transport section.


-
In case the registration sensor (PS1) is unblocked after main power switch is turned ON, doo
are opened / closed or jam/trouble reset is done, it is regarded as paper jam at duplex transp


-
In case paper position is detected as locating properly after main power switch is turned ON,
cover are opened / closed or jam/trouble reset is done, it is regarded as paper jam at duplex
section.


Misfeed processing
location
Right door


Relevant parts
• Transport motor (M1)
• ADU transport motor (M5)
• ADU transport clutch (CL6)
• Registration sensor (PS1)
• ADU paper passage sensor/1 (PS40)
• ADU paper passage sensor/2 (PS41)
• Front side board (FRB)
• Printer control board (PRCB)


(2) Procedure


Step
Action
Control signal
Location of electrical c


1
Initial check items
-
-


2
PS1 I/O check, sensor check
FRB CN8-3 (ON)
4 to 5-L


3
PS40 I/O check, sensor check
PRCB CN21-10 (ON)
18-C


4
PS41 I/O check, sensor check
PRCB CN21-13 (ON)
18-C


5
CL6 operation check
PRCB CN12-11 (ON)
26-C


6
M1 operation check
PRCB CN31-2 (REM)
PRCB CN31-5 (LOCK)
bizhub C364e 2
bizhub C284e 2
bizhub C224e 2


7
M5 operation check
PRCB CN21-1 to 4
17 to 18-C


8
PRCB ICP3 conduction check
-
-


9
Replace FRB
-
-


10
Replace PRCB
-
-

[allan]

Will that paper in the image feed LEF?
On LEF it seems wider that the paper path...

[blazebusiness]

Will that paper in the image feed LEF?
On LEF it seems wider that the paper path... After looking more closely at the posted pic, I see your point. That has got to be B4 size (like Blackcat had guessed), not A4. And looking at how long that sheet of paper is....you are correct, no way can it be fed LEF.

[allan]

Some times honesty fixes the problem. Could be that the machine times out on a sensor or even firmware related, but probably not.
Who knows these things.

[tsbservice]

Picture he posted paper is A4-R(SEF), it also jams on A4(LEF). Тhat is my understanding.
I have to admit, I may be wrong. After second look paper on picture seems too long. I guess BC assessed/measured it correct.

[blackcat4866]

I just looked down the list and found an ISO paper size just a little bigger than US Folio. And yes I thought too that at ~13" or 14" it could not possibly pass LEF through a C284e. =^..^=

[tsbservice]

Picture he posted paper is A4-R(SEF), it also jams on A4(LEF). Тhat is my understanding.


I have to admit, I may be wrong. After second look paper on picture seems too long. I guess BC assessed/measured it correct.


May have to correct myself again.
42270

[allan]

And the OP is MIA.

[ferro10]

hello I have the same problem on a c554e how did you solve?

[Bix]

Hi, it would be appropriate to create a new thread with the characteristics of your problem.

[Oystercopy]

There is a known issue with this series machine, with the duplex switchback gate solenoid. The cure (which I have not done in a couple of years), is to add a spacer (I've used the corner of an old credit card) and put it in between the solenoid plunger arm and the frame. Gives the solenoid less ability to open (which I assume has something to do with timing?) and keeps the gate open longer. I can't put my hands on the bulletin/info at the moment, but a buddy of mine originally found the problem and reported it to KM.

Hope this helps.
OC