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I wonder how it would go with the "correct" inks on an old school letterpress? It would completely eliminate the need for fountain solution etc... Food for thought...

Rather an interesting problem this one, and I'll be interested to see what the issue is and how it's resolved... Coming from the pressman's POV, it's very easy with a fairly left field problem such as this to blame pre-press. I mean all the other plates fit so why would a replacement plate not...

In that case you can *almost* rule out a press (mechanical) issue, unless it's a certain group of units that are the main offenders as it's certainly possible that these units are suffering higher roller wear rates (different techs setting rollers harder/softer for example). Being a fairly...

I would suggest that with the problem being localized to only the black, and assuming nothing else has changed, that the boys may need to have a look at the roller settings in that unit. IF something has changed (ie ink/chemistry etc) start with whatever was changed and perhaps swap back to the...

Hmmmm.... For mine it used to be Rugby League in winter, Cricket in summer, and drag racing all year round with my home built VH Commy in the super street bracket racing category. These days with a couple of kids the racing is out, and now I need a new should and a new knee, so the sports are...

We changed to Bottcher S3002 (I think will have to check) fountain solution and it helped significantly. We've since changed to Hostmann Perfexion series ink and it's probably a little worse if anything: it's a hell of a lazy, unresponsive ink however, it takes about 200 sheets to react to duct...

Ok we have sorted this out, and in the end it just came down to comprehensively cleaning out the bottom of the gooseneck. Each week it gets a delivery clean as part of the weekly maintenance, but we usually limit this to an air gun blow down to remove shite from the traveling grippers. Not...

The blotches appear in the same area, but are not exactly the same.... Similar patterns and appearance, approximately 1/3 of the distance from each edge of the sheet (where a gutter would be in a standard A4/8up job) We are running a matte stock called 'high bulk velvet', 80gsm with a sheet...

Ok so we are getting what *appears* to be spray powder bombs when backing up jobs at the moment. On the job we are currently running, it's requiring a blanket wash at least twice per stack, and it shows up pretty badly in the 4 colour screens, but is mainly evident on the first 2 units (black...

Maybe "engage" instead of "start"??

Well played sir :)

Just let me know when you've built the press that only has a "control/print/<amt-rqd>" pad on the console so I can retire please Erik...

BBQ tongs?? You know the real long ones??? Frikken Aki cam followers :(

Make sure he greases them weekly without fail. They aren't overly expensive, but nor are they cheap. Years ago I was running an Aki 28/6 and when I started we were burning one a week or more, as the "pressman" (and I use the term loosely!) would never bother with greasing them: to him numbers on...

Try India?? That's where our old Aki's went. Oh... And put some more grease in the cam followers. Now.

Cool story Hansell :)

That's a pretty good point re the temp issue, our factory is un-air-conditioned and over the last 3/4 months it's regularly averaging 30+ degrees c, and out technotrans works hard to keep everything cool. I will have a look at the duct temps but I would bet a lot of cash on the ducts being more...

We have 2 Komori's, a 26/5 and a 40/4, and with identical ink and chemistry, the 26" does NOT frame and the 40" does... ??? Bit of a mystery, but through trial and error of different fountain solutions (ink has stayed the same-Hostmann Steinberg) we have minimized the issue, but not rid...

I'd be betting on the solenoid that controls your misfed sheet dam.... When it fails it tends to do exactly what you're talking about... It can also give you front lay register issues...

That's pretty much what they do here Gordo... Not so nice!!! The top method shown in your above post is pretty much exactly how my old shop had it set up, with the addition of a workflow/priority sheet clipped to it. This sheet was one copy of a set of four, with one copy to bindery, one to pre...