SR3000 - dogears driving me nuts!

[Polarbear]

I have an SR3000 (finisher that fits the MPC3000 range) in my workshop that is driving me nuts.

All is well except for intermittent dogears that range in length from around 7cm to almost 20cm!

I have checked and adjusted the finisher entrance gate as this normally is the culprit, but it does not seem to want to get sorted!

I have also checked the paper path as it happens no matter where the paper exits (proof or shift tray)!

I have turned the paper stack over to check for excessive paper curl and have done copies from all trays. It seems to be more prevalent

Has anyone got any thoughts on this they wish to share?

[Eric1968]

Re: SR3000 - dogears driving me nuts!

Maybe there's too much moisture in the paper. Had the same with a machine which was placed at the entrance of a greenhouse. I had to bend a few guides to make it work. Maybe feeding the paper SEF is an option?

[Polarbear]

Re: SR3000 - dogears driving me nuts!

Eric1968

Thanks for the reply, will give it a try.

[Ollie1981]

I had something similar on a finisher on an MP9000. After pulling out my hair for what seemed like an eternity I stripped out the guide plates on the staple path. I found a small "gouge" in the guide plate just before the paper goes into the jogger tray to be stapled. It was weird because it didn't look like anything caused by wear, it looked like something sharp had come into contact with the plastic guide causing a prominent lip that was catching the paper. I filed it flat reassembled and it ran like a charm.

If the paper is dog earing earlier in the paper path then I'd check the junction gate that sends the paper to the proof tray/shift tray or staple path isn't broken. I haven't had that break on this particular finisher before but had it break semi-regularly on the SR4000 finisher on the MP7500 range. That can either cause jamming or dog earing and it usually breaks at the front where it hinges into the finisher frame.

[cwilson]

Re: SR3000 - dogears driving me nuts!

if you remove the finisher completly, along with the bridge unit, does it still dog ear? i mean, it could be the bridge unit...

[wilez]

Re: SR3000 - dogears driving me nuts!

3-hole punch or no? I have had chads stuck in a punch hole cause this as well as the teflon on the hole punch having burrs catching the paper to cause dog earring.
Also the junction gate that diverts it to the proof or shift tray may have a nick or burr causing this.

[redneckstylin]

Re: SR3000 - dogears driving me nuts!

hows the bridge mylar....i have had that mylar cause me alot of grief

[cwilson]

Re: SR3000 - dogears driving me nuts!

I too have had issues with that bridge Mylar, only it jams on me instead of dog ear. If its not butted up against the side of the bridge unit EXACTLY, it will give you issues

[kannuki2]

Re: SR3000 - dogears driving me nuts!

I am sorry to say this but the way you described the problem is very vague. Keep it short and to the point
Are you getting dog ear when you run single copy without staple? What about default you copy output to the internal tray ? Be very specific to what symptoms you have and we can help you better!
What jam code ?

[Polarbear]

Re: SR3000 - dogears driving me nuts!

I am sorry to say this but the way you described the problem is very vague. Keep it short and to the point
Are you getting dog ear when you run single copy without staple? What about default you copy output to the internal tray ? Be very specific to what symptoms you have and we can help you better!
What jam code ?

Sorry about that! Single sided no punch no staple. Dogears happen in proof and shift tray. I stripped the entrance completely, and connot seem to see anything broken or out of place. I'm leaning towards the junction solinoid. I have fitted the sorter to another machine with other bridge, same symptoms, so mc and bridge is not an issue.

[Iowatech]

Re: SR3000 - dogears driving me nuts!

The picture shows an angle in the main crease. If that is the case every time you get dogears, you might try lining the angle up with the various rollers, guides and gates the paper travels through. It might not give you the exact location of the problem, but it should help you narrow it down.

[Polarbear]

Re: SR3000 - dogears driving me nuts! - SOLVED!

One of my field supervisors, and I had another look this morning, and we discovered that the cross member, that the entrance guide of the finisher fits onto, was bent inwards (at the right hand side, if viewed from the entrance guide side.) [See the attached photo]

Once this was straightened, the dogears left for good - it has been on test for the past 30 minutes and not one!

Thanks to all the input from everyone! It is highly appreciated!