konica minolta bizhub 300i jam/ bends paper corner only on 2 sided copies

[brent]

so this only happens on 2 sided copies.. you can hear it then when the paper comes out its a kind of a accordian with the edge bent.. the corner I mean is bent.. I have a customer making thousands and I have them currently making just single sided etc.. no issues there. I have replaced the fusing section.. all feed tires.. cleaned and serviced. any thought>?
also just looking for additional help on this its making me bonkers thanks all

brent

[tsbservice]

Could you get a jam code?

[brent]

Yes, sir, I will post a picture. Thank you.

[Synthohol]

dunno if you had the manual,

1.10.1 92-01, 92-02, 92-40 Contents

JAM type	Misfeed at duplex pre-registration section
JAM code	92-01, 92-02, 92-40
JAM detection timing	92-01	The leading edge of the paper is not turned ON (unblocked) the registration sensor (PS1) even after the lapse of a given period of time after a duplex paper feed sequence has been started.

bizhub 360i/300i L TROUBLESHOOTING > 1. JAM CODE

Misfeed processing location	Right door
Relevant parts	• Transport motor (M1)• ADU transport clutch (CL6)• Registration sensor (PS1)• Base board (BASEB)

Procedure

Step	Action	Control signal	Location of electrical component
1	Initial check items	-	-
2	PS1 I/O check, sensor check	BASEB CN15E-9 (ON)	4-C
3	CL6 load check• Check code: 81• Multi code: 0	BASEB CN18E-1 (REM)	5-C
4	M1 load check• Check code: 40• Multi code: 1, 4, 5	BASEB CN19E-1 to 5	1-C
5	Replace BASEB.

[brent]

I do have the manual and I was checking that out. After replacing the parts that I did for some reason, the paper is just getting caught or turning on something that I can’t see we can run two copies and all sudden one will get stuck because it goes sideways. This is very intermittent. That’s why I was seeing if anybody else may have had this issue.

[blackcat4866]

The most common cause would be paper curl from printing the first side. The easiest place to start is to bring some known good paper and run it. If your paper duplexes fine, but theirs does not, you're done. The only thing you can do is choose a lighter media setting, or perhaps reduce the fusing temperature slightly (not so much that it doesn't fuse). There aren't any mechanical adjustments on that fuser. =^..^=

[tsbservice]

I would check registration sensor actuator arm and spring sometimes you just need to add an extra loop on the spring.

[brent]

I will check the sensor ironically the paper sensor got pushed to the paper on one and I’m not sure if I did it or not. Also, they are using Quill paper which sucks. I told them if this continues. I was gonna bring up some red top Office Depot they said it didn’t really matter because they had 12 cases of paper and I indicated to them if I could prove That if it was a problem that didn’t matter to me if they had 12 cases or not anyway that’s some really good ideas thank you gentlemen

[ronny2502]

Hello,

in the case of the J93-10 / J9310, I replaced the VerticalTransportAssy, which solved the problem.

Best regards,
Ro

[Ziggy]

If it is bending the corner closest to the back of machine remove the rear claw/guide item 32. I have had several machine that I have had to remove this from to fix this problem
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[Tech09]

Also, in the above picture, remove #5 on both sides. If memory serves that is just a noise dampener for the switch gate, those can cause the switch gate to get stuck. Another thing, make sure the paper is centered properly in the tray, there was a bulletin about that.

[brent]

thanks everyone for the guidance. I will address this tomorrow. much appreicated

brent

[Ziggy]

The reverse section is in the right door.

[Hap]

check the centering in the trays every c300i we have gotten has it adjust as far back as it goes when moved to middle and adjusted electronically it resolved all our issues

[femaster]

check the centering in the trays every c300i we have gotten has it adjust as far back as it goes when moved to middle and adjusted electronically it resolved all our issues

We've seen this as well. They are coming from the factory with the tray guides adjusted all the way to rear which causes the folded corners (dog ears) on the rear side of the machine. Once the guides are moved back to the center, 99% of the time the issue is resolved.

KM has also released some "Service Only" mylars that attached to the transfer/duplex assembly that are supposed to prevent the dog ears as well. These apply to all models 65ppm and under.

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