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Hi. Hope I'm not speaking out of turn as I've never run a Ryobi. I assume it doesn't have a stream feeder as I normally use. Is this any help? Feeding writing grade paper on Ryobi 3302 - Color Printing Forum We've all been at our wits end with feeding at some time, so wishing you all the best...

Hi, I have a Stahl K56 folder K56/4kTL 4B2. It is very slow on start up but is ok after it 'warms up'. The operator switches it on and starts running it 30 minutes before use until it gets to speed. If it is left to stand a couple of hours, same again. It squeals at first which suggests a drive...

OK guys, Now I've brought your responses to my printer and questioning him more closely I reckon there are two unrelated issues here, and the problem is not as I described. One is that when setting the keys some keys open up so far and no further. This sounds like those keys are gunged up with...

Hi Francois, They open or close to a random position, which can happen anytime during a production run. A couple of weeks can go by without a problem. I suspect it is likely to be a board as all the ducts are affected. I have 2 presses of a similar type and age so maybe I could swap a board...

What a really interesting idea! And easy to remedy. I'll give that a try. Thanks.

Thanks. Heidelberg don't have electricians on the books, they just subcontract to local approved sparkys. Ours just says 'It's a needle in a haystack'. Is there a Heidelberg helpdesk or similar? Thanks again for all your interest, Peter

If I've uploaded it right, this should show it. Thanks.

Hi, Thanks for the response. I think the press predates the use of software, but I could be wrong. Again many thanks for taking the trouble to help. Peter

Hi, I have a 20 or so year old Heidelberg 72 and recently the keys randomly open up or shut down on the run. This happens on all units , though it seems to happen more often on some keys than others. It doesn't happen all the time, or to all at once. A couple of weeks can pass with no probs...

Piling Piling It's not piling, is it? Pigment staying behind on plate and not transferring with the vehicle. The sort of thing we get on sheetfed, esp on blankets on long runs when the press gets hot.

Al You mentioned checking the paper stop to the witness marks. I believe that both the top and bottom plates I am using are not level to the witness marks scribed on the plate. Do you know how to square them up on a Stahl? I can probably work it out but any guidance would be helpful. Thanks, Peter

Hi John, The great majority of jobs we fold are cross-grain. Maybe 8 or 9 out of 10 jobs. The weights are usually 130gsm or 170 gsm. Thanks, Peter

Hi John, Yes I have watched 100 sheets going in and all pull over well as far as I can see. All the paper is of good quality, though I hear from one of the lads that that the more ink on a sheet the more probs. I am sorry I haven't tries a larger sheet yet as you suggested, but as that will go...

Results of work on folder Results of work on folder Hi guys, I have been working on the folder today applying the sum of your advice, with encouraging results. I have been running test paper of the weights and sizes we usually use and have got good folding. I have found that contrary to my...

Hi Al, Yes the knobs you show on pic 6 are for setting the throat, so yes I know those. Your point 3 refers to spacer washers. That I am not clear about. Thanks for all the trouble you are going to on my behalf. Peter

re John and Al re John and Al Thanks guys. John-50lb is 130gsm? I will try and let you know. 1 sheet in 1st caliper,2 sheets in second. With 1 fold, the second caliper is irrelevant, right? Al- Witness marks, I am afraid i don't know the term but I will have a look and double check all is...

Re Alferrai Re Alferrai Dear Alferrai, Thanks for the advice. The help from the forum is very impressive!! I will pay particularly close attention to the guide/entry if that seems to be where I should be looking for the cause. It all looks ok to me but... Thanks again, Peter

Reply to RGP Reply to RGP Thanks also to RGP for your fast response. I have checked that the plates are well home and that all the settings are square. The problem is in evidence even with only one plate in use. I have tried swapping plates and different routes through the folder. I am sure...

Dear John, Thanks for your amazingly prompt reply. I am impressed!! I agree that the age of the machine shouldn't have any bearing as long as parts are not worn out. Our strength lies on the printing side and we are all a bit weak and inexperienced with folders, hence the request for help. 1...

I have a Stahl folder, B2 size with 4 parallel plates and a crossfold which I rarely use. We use it mostly for the simplest folds, a single fold A4 to A5 or a roll fold A4 to DL. The problem is that the folding is inconsistent, never consistently accurate. It will throw out slightly top and...