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hasbeen hasbeen Try washing up the press with varsol or coal oil. Back off washup blade and then apply a 15% mixture of white vinaegar and warm water, run press for a few moments then apply wash up blade and finish the job. NOT ALLWAYS - But in a vast majority of cases blinding is caused by...

Bloodsaler: My first impression is that the dots are snowflaking and, if so, the printing unit is underpacked by approx. one thou. If I am correct you would probably see a different dot shape as the pressman has to carry a heavier ink film to make up the difference. Regards: Has-been

Karish The Kodak response appears to be a sole sales pitch. Not customer advice. Actually, from you decription of prining needs violet plates would work very well. Processless plates would also work - but - some limitations. Both FUJI and AGFA have good products for violet & therma lasers -...

siriussg One word of caution - I only ever found one densitometer that "actually" worked on plates and gave consistent results. Has-been

Once you have set the power level coorectly, simply image calibration scale (.5% to 99.5%) and adjust your calibrations. Has-been

dissapointed: What is the blanket wash formula. has-been

Erik: What they might be referring to: Sometimes, when the roller oscillation takes place, a light scumming or slight directional dot change occurs at the point of the forme roller contact. Anyhow, if the person is explaing the situation properly, it would appear to be mechanical, i.e. roller...

maxon: To elaborate (just a little) I must first explain that I spent quite a few years converting silver emulsion platesetters (most manufacturers) to photopolymer plates and found similar results in pretty well all of them. When you upped the power, optics problem would appear and in many...

Vladcanada: By stating "goes without saying" I do not mean that there may not be a cost factor involved. I was simply stating that, after all these years, I would think that anyone seriously invoved in CTP should be aware of the fact that higher power lasers are required for photopolymer plates...

HI steve: I think that the upgrade goes without saying. But maybe I am wrong to assume that everyone is aware of the higher lazer requirements after all this time. Did you notice that I did not name any plate manufacturer? Regards: Murray Billinghurst

Dissapointed: Sorry, I must have had a seniors moment. There is one variable that you should consider. Obviously a wash-up has taken place between the runs. It is possible for this to be a cause in the tonal change. Most printers do not understand the problems that some press washes can cause...

Dissapointed: You probably just gave the answer - waterless. 1 degree change in ink chiller can make a difference with some colours. Was you gain in specific colours?

Alex: Even though it means a different processor, I think that you should really consider the photopolymer option.There is a very good reason why there is only one manufacturer of silver emulsion plates. Regards: hasbeen

Steve: Just to be clear - Quality is quite often subjective. when I refer to quality, 2-98% resolution will not cut the mustard. This is not a reflection on the AGFA product it is only a clarification of where I am comming from. When you talk about replacing LH-PJ with AZURA in quality shops...

Londonbob You got it right! LHPJ is capable of much higher quality printing (actually better than most know) but is of a different technology than the AGFA product and therefor there is no comparison. Comparing Fuji,s chem. free to AGFA's product makes more sense. As I stated earlier -...

Preper: Your reasoning is very sound. As I have stated before - the plates you use must be the right ones for YOUR application. Some types of plates, though they work well under certain conditions, are not suitable under other conditions. Allways use what is best for your own printing...

STEVE: Sorry for the misinterperation! Thanks for the kind words (I think). Best regards: Murray

To Both the forum and Steve To Both the forum and Steve Steve: This was an honest oversight - hope this clarifys things. My name iis Murray Billinghurst and I am from Toronto Canada. I spent 25 years in the pressroom and the next 26 years as both a tech-rep and national technical manager...

Steve Steve Steve: Don't be suprised - I retired from FUJI a couple of years back and for various reasons, kept a low profile. I really only looked in on the forum, the other day because an old colleague of mine was bugging me to do so. I could not agree more with your statement of comparing...

has-been has-been You talk about remaking plates because of image loss and not getting answers from AGFA At the same time you mention re-running plates after storage. If the image loss is after storage, it is most likely "not" a plate problem. This is generally caused from improper treatment...