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laserman06
06-05-2008, 11:04 PM
I don't know how many of you all are having intermittent jamming with code J-6602 or possibly code J-6603

Konica now has a new mod that may help. We have done it to a couple of our machines. Will let all know the outcome. But here is the modification and bulletin. I know I have several and they can drive one crazy. I sure hope that it helps

Haroldbfix
06-10-2008, 03:56 PM
Thanks laserman, very helpful tip. We have used a different sep roller and lowered the sep spring tension to the lowest setting. The has improved the jamming by i would say 90%. however I will check into this Mod. Its good to see something form Konica on this issue.

laserman06
06-11-2008, 12:48 AM
We have used a different sep roller and lowered the sep spring tension to the lowest setting.

If you don't mind me asking which sep roller did you use?

Haroldbfix
06-11-2008, 01:21 AM
If you don't mind me asking which sep roller did you use?


4582304701 This roller comes from the B350 Feed unit. Alot of tech at our branch are using these instead. It will work better but you have to lower the spring tension on the sep roller to the lowest setting.

Haroldbfix
06-20-2008, 09:18 AM
I don't know how many of you all are having intermittent jamming with code J-6602 or possibly code J-6603

Konica now has a new mod that may help. We have done it to a couple of our machines. Will let all know the outcome. But here is the modification and bulletin. I know I have several and they can drive one crazy. I sure hope that it helps

Im going to try this Mod on a machine today. How are you machine doing?

kenji554
07-22-2008, 06:31 PM
laserman06,
Can you clarify where exactly the screw should be inserted? By the pic it looks like the screw goes betweeen the cover and the spring idler.

dallas
07-22-2008, 07:56 PM
Try this once. Maybe it works.
However, there is no 100% of solution.
There is meanwhile a modified (black) A01H561800 Lever.

texchar555
07-23-2008, 05:09 AM
Hey, Dallas

I had the same problem with the df 611 Ive tried all the mods. Then my boss told me to bring a new one and guess what? lol the same thing, but this time the lift is black not white. I went ahead and put two screws in the same place . and now its been 2 weeks without a whisper.

dallas
07-23-2008, 11:08 AM
Hey, Dallas

I had the same problem with the df 611 Ive tried all the mods. Then my boss told me to bring a new one and guess what? lol the same thing, but this time the lift is black not white. I went ahead and put two screws in the same place . and now its been 2 weeks without a whisper.

Hi texchar,
every tech on this planet have these problems with this bitchy DF, and meanwhile I believe, the KM Engineers have no idea to solve this problem. My impression is, they want to sit it out.
Maybe there is sometime a reasonable solution and preserves some tech from suicidial tendency :D.

texchar555
07-23-2008, 08:45 PM
hey, you want to something scary? take the cover off the top and and screw the 4 screws back in place. Then watch how the bottom frame bounces around as the rollers are picking up the papers.

popcornpuppy
07-23-2008, 09:36 PM
i found that filing away a small section of the actuator usually helps prevent the sensor reading problem

dallas
07-23-2008, 09:48 PM
Natural tech insanity :p
btw. Yes, I observed the same and my approach was the lever and these unsteady pick up holder, but in field you have not to much options. For the moment, I have good results to clip a piece of 1cm hight from an old cleaning blade between the frame and the cover :D.

popcornpuppy
07-24-2008, 12:14 AM
thats a good idea, i might give that a go when i see that problem again

kenji554
07-26-2008, 02:44 AM
I used the roller (4582304701) and reduced the spring tension that Haroldbfix mentioned and it did reduce the occurance of seperation jams. I also added the screws to the white lift lever to raise the tray and that appears to have eliminated the read sensor errors. My customer is still having frequent seperation issues so we are swapping the feeder.
Thanks for all the feedback.

texchar555
07-26-2008, 03:09 AM
Hope you have better luck than I did. We also installed a new one and the same thing happend again. order the lift plate and make sure it black not white.

chexin51
08-20-2008, 07:01 PM
Please correct me if I'm wrong but the red arrows on the DF611 Mod.pdf are pointing to nowhere where you can put a screw. The arrows should be pointing to part # 11 9J07 3204 01 LEVER ( white in color ) on Page 3 of the DF-611 Parts List. More specifically to the 2 holes that are on the left side of this part. This is where the 2 screws can be inserted to cause the part #28 Lifting Plate to lift higher. The newer DF-611's are coming with a modified Lifting Plate that is all black and there are no holes. After inserting the 2 screws and reducing the separator roller pressure ( part # 1 ROLLER on page 6 ) by moving the spring ( part #4 Torsion Spring Page 6 ) to its lowest notch, the 2 clients that had jam 6602/6603 problems stopped calling for jams.
But there is another area of concern.
Sometimes a single sheet or the last sheet of a pile of originals will fail to move at all and a Jam 6602 will occur. The only pressure that is being applied to the primary pickup rollers ( part # 28 Page 4 ) is from 2 small springs ( part # 16 Page 4 ). These springs are to weak and can be hooked further into the spring coils ( 2 windings is sufficient ) to increase pressure or another spring added for a total of 4 springs. Hopefully they will eventually issue stronger springs.

Haroldbfix
08-21-2008, 12:14 AM
Please correct me if I'm wrong but the red arrows on the DF611 Mod.pdf are pointing to nowhere where you can put a screw. The arrows should be pointing to part # 11 9J07 3204 01 LEVER ( white in color ) on Page 3 of the DF-611 Parts List. More specifically to the 2 holes that are on the left side of this part. This is where the 2 screws can be inserted to cause the part #28 Lifting Plate to lift higher. The newer DF-611's are coming with a modified Lifting Plate that is all black and there are no holes. After inserting the 2 screws and reducing the separator roller pressure ( part # 1 ROLLER on page 6 ) by moving the spring ( part #4 Torsion Spring Page 6 ) to its lowest notch, the 2 clients that had jam 6602/6603 problems stopped calling for jams.
But there is another area of concern.
Sometimes a single sheet or the last sheet of a pile of originals will fail to move at all and a Jam 6602 will occur. The only pressure that is being applied to the primary pickup rollers ( part # 28 Page 4 ) is from 2 small springs ( part # 16 Page 4 ). These springs are to weak and can be hooked further into the spring coils ( 2 windings is sufficient ) to increase pressure or another spring added for a total of 4 springs. Hopefully they will eventually issue stronger springs.

Thanks for the tip. I have not seen the last sheet jam issue, but I will keep an eye and ear out for that. I also didnt now that there was a modified lift plate. Does this mod correct the height issue, or are screws still needed? Please advise.

chexin51
08-21-2008, 01:35 AM
the new black lifting plate does not have any screw holes and does not require any screws as it is the modified plate. It's height is 8 mm. I still have to measure the original white plate that requires screws. There might be other differences between these 2 parts.

lucky13
08-21-2008, 02:42 AM
i used these shims on the older df 610 611

chexin51
08-21-2008, 03:23 AM
One of the DF-611's I was having a jam 6602/6603 problem had the shims installed and a white LEVER so I can only conclude they don't work.
But after put the 2 screws and lowering the sep roller pressure spring to the lowest position the problem was solved.

laserman06
08-21-2008, 04:22 AM
After I did the screws on mine, working like a charm. Have not been back. Crossing my fingers;)

Haroldbfix
08-21-2008, 05:39 PM
One of the DF-611's I was having a jam 6602/6603 problem had the shims installed and a white LEVER so I can only conclude they don't work.
But after put the 2 screws and lowering the sep roller pressure spring to the lowest position the problem was solved.

I agree had same issue did the same thing and problem was resolved. Prior to this the customer wanted to throw the machine and tech out the window.:)

excanonguy
05-27-2009, 02:27 PM
I guess this is still an ongoing issue...I have had two very recent installs of DF-611 's and they are both having the same 6603 codes, and they have the mods done on them from the factory, I lowered the spring pressure(lowest notch) on one and tested for quite a while and it didnt jam....but I am sure this will be back lol! Do any of you guys have any solutions of your own that have helped??

JSC
05-27-2009, 03:56 PM
And i thought it was only me having these problems with DF611's
I have also found that replacing the DF611 feed roller ( same roller as the paper feed on the C250's ) with the C550 paper feed tyre ( the pink ones ) also helps.

excanonguy
05-27-2009, 04:29 PM
And i thought it was only me having these problems with DF611's
I have also found that replacing the DF611 feed roller ( same roller as the paper feed on the C250's ) with the C550 paper feed tyre ( the pink ones ) also helps.

Do you have a part number for it,so I can check if its the same here in North America?

Thanks Steve

JSC
05-27-2009, 04:51 PM
Do you have a part number for it,so I can check if its the same here in North America?

Thanks Steve


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