AK-7110

[sparkycivic]

Re: AK-7110

Can anyone verify if these jams have occurred on a machine without a speed license? Just an idea that these are jams created by speeding up these machines.

Mine is a 6003, prior to speed license upgrades...

[sparkycivic]

Re: AK-7110

1 week since new AK7110, no jam 500x. it might be cured!

[tonerleak]

Re: AK-7110

Had the same issue, j5004 on a 5053ci with 600k on the meter. Problem started when the weekend staff at a long term care facility who were having jamming issues, decided that beating the crap out of the right side door was the solution instead of placing a service call and being patient. So after replacing the door(billable), I was seeing the same jam as was mentioned previously. Firmare upgrade, replaced AK and exit unit, two weeks later still no word.

[fishleg]

Re: AK-7110

I had this issue yesterday for the first time on a 5053ci.

My plan was to put more pressure on the white rollers but omg what a pos to disassemble. There's literally plastic clips everywhere, why can't you just have 2 screws that hold the lid on and some pins to hold it in at the back... but noooo got to have a million plastic clips to hold that lid on.

In the end I gave up getting that lid off. I found two one way bearings at the back but I'm not sure if it's to do with those. Machine has been working fine for last three years and it's suddenly started giving 500x jams with 600k prints.

My machine gives 5003 on say 1/100 run all the paper looks fine in the machine so you take the jam out then 100 sheets later roughly same thing. Last thing I did was spray the connector with isopropyl and remove and reattach the unit to clean the connector out. My guess is either the tyres are slipping and not pulling the paper forward or a dodgy sensor.

Anyone had any joy with this? Next plan was to try a different AK.

[sparkycivic]

Re: AK-7110

I had this issue yesterday for the first time on a 5053ci.

My plan was to put more pressure on the white rollers but omg what a pos to disassemble. There's literally plastic clips everywhere, why can't you just have 2 screws that hold the lid on and some pins to hold it in at the back... but noooo got to have a million plastic clips to hold that lid on.

In the end I gave up getting that lid off. I found two one way bearings at the back but I'm not sure if it's to do with those. Machine has been working fine for last three years and it's suddenly started giving 500x jams with 600k prints.

My machine gives 5003 on say 1/100 run all the paper looks fine in the machine so you take the jam out then 100 sheets later roughly same thing. Last thing I did was spray the connector with isopropyl and remove and reattach the unit to clean the connector out. My guess is either the tyres are slipping and not pulling the paper forward or a dodgy sensor.

Anyone had any joy with this? Next plan was to try a different AK.

I never needed to go back to mine after applying the shim to the ak door, so there's that.
I see you tried to get inside your bridge... I had mentioned in a previous post that going in from below is the path of slightly less resistance... But it's probably not worthwhile anyway for this issue.
You can see how the front cover lifts the lower half of the ak up, and it rides along the smooth angled ramps if the door... I stuck a shim to the upper part of that ramp so that it adds upward pressure to the entrance-side of the ak(your right-hand side). Doing so, added some pressure to the first drive pinch-roller so that it now visibly loads the springs a bit, which is an improvement over it not deflecting the springs at all normally.
You can test this theory beforehand by putting one of those big booklet-folder springs under the bridge to press upwards on the floor, it won't be fun to open/clear jams but it will likely eliminate the j500x for testing purposes.
Also remember, to get access to the underside of the ak while installed,the front cover comes off kinda easy once you get the hang of the right order of pulling the two pins and dealing with the alignment of the sliding parts. Practice on a cadaver first...

[blackcat4866]

Re: AK-7110

I never needed to go back to mine after applying the shim to the ak door, so there's that.
I see you tried to get inside your bridge... I had mentioned in a previous post that going in from below is the path of slightly less resistance... But it's probably not worthwhile anyway for this issue.
You can see how the front cover lifts the lower half of the ak up, and it rides along the smooth angled ramps if the door... I stuck a shim to the upper part of that ramp so that it adds upward pressure to the entrance-side of the ak(your right-hand side). Doing so, added some pressure to the first drive pinch-roller so that it now visibly loads the springs a bit, which is an improvement over it not deflecting the springs at all normally.
You can test this theory beforehand by putting one of those big booklet-folder springs under the bridge to press upwards on the floor, it won't be fun to open/clear jams but it will likely eliminate the j500x for testing purposes.
Also remember, to get access to the underside of the ak while installed,the front cover comes off kinda easy once you get the hang of the right order of pulling the two pins and dealing with the alignment of the sliding parts. Practice on a cadaver first...

It sounds like you're on the right track sparky. On the Alphard bridges those white idlers would start falling out (no pinch pressure). I would be curious if you had a picture of your mod. I'd like to see how you positioned the mylar. =^..^=

[fishleg]

Re: AK-7110

I never needed to go back to mine after applying the shim to the ak door, so there's that.
I see you tried to get inside your bridge... I had mentioned in a previous post that going in from below is the path of slightly less resistance... But it's probably not worthwhile anyway for this issue.
You can see how the front cover lifts the lower half of the ak up, and it rides along the smooth angled ramps if the door... I stuck a shim to the upper part of that ramp so that it adds upward pressure to the entrance-side of the ak(your right-hand side). Doing so, added some pressure to the first drive pinch-roller so that it now visibly loads the springs a bit, which is an improvement over it not deflecting the springs at all normally.
You can test this theory beforehand by putting one of those big booklet-folder springs under the bridge to press upwards on the floor, it won't be fun to open/clear jams but it will likely eliminate the j500x for testing purposes.
Also remember, to get access to the underside of the ak while installed,the front cover comes off kinda easy once you get the hang of the right order of pulling the two pins and dealing with the alignment of the sliding parts. Practice on a cadaver first...

Thanks I'll try the shim trick. It must pause and continue I guess in the bridge because it did look like the tyres turned but paper didn't move. Terrible to take to bits, it's basically junk if you had to say change the two sensor flags.

[sparkycivic]

Re: AK-7110

It sounds like you're on the right track sparky. On the Alphard bridges those white idlers would start falling out (no pinch pressure). I would be curious if you had a picture of your mod. I'd like to see how you positioned the mylar. =^..^=

I either forgot to take pics, or lost them. Here's the place where it goes... Just make sure it goes into the curved area which is where the resting position of the roller goes when the door is completely closed. (pic)
20230320_083724reduced.jpg

[blackcat4866]

Re: AK-7110

Thanks sparky! =^..^=

[Dark Helmet]

Did you ever get this sorted? I have a 6003 doing this. Ive swapped the entire AK so far and it's still throwing J500x but not as often. Mostly J5008 which i believe is from the MP tray but there are J5004 and J5003.

When i put the AK back in i did tighten the screws in sequence that the install manual shows. Thinking ill try the Exit Unit next.

[nathicana]

Did you ever get this sorted? I have a 6003 doing this. Ive swapped the entire AK so far and it's still throwing J500x but not as often. Mostly J5008 which i believe is from the MP tray but there are J5004 and J5003.

When i put the AK back in i did tighten the screws in sequence that the install manual shows. Thinking ill try the Exit Unit next.

My thought on this is that one way bearings are slipping. 303SZ31040 (1), 303SZ31090 (4). I think there is one more but I would have to look at one to verify.

The AK-7110 drive area can be difficult to put back together correctly, takes patience.

[ThisPete]

My thought on this is that one way bearings are slipping. 303SZ31040 (1), 303SZ31090 (4). I think there is one more but I would have to look at one to verify.

The AK-7110 drive area can be difficult to put back together correctly, takes patience.

I took one apart recently and three of the one way clutches had been slipping and the shafts they were on were severely glazed, all were stripped down and de-glazed though a couple of the shafts were difficult to get too.

Instant result for the good but it only held up for a couple of weeks, mind you this is a machine that when busy will run from ~07.30 until 16.00 when the operator leaves.. having filled up all cassettes so it can run on after they've gone (unless it jams)... 😲

Machine is on just about 1.5M.. An AK-7110 complete is cheap in the U.K. Far cheaper than the replacement parts needed or paying for the engineers time, hence why we now just replace them...