Recent content by egorus

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    The initial position of plate&offset cylinders

    On Roland's "zero" position as my variant 2. And the position of the image on plates is 35 mm. Plate cylinder starts first. Offset cylinder rolls on plate. On my Ryobi 662 PFH "zero" position as my variant 1. And the position of the image on plates is 15 mm. See...
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    The initial position of plate&offset cylinders

    How to correctly set initial position of plate & offset cylinders? Variant 1, 2 or3?
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    Scum line on lead edge of plate on Ryobi

    I made a mistake in the thread title. Blurry strip on lead edge of PAPER (not Plate). Scum line on plate -> 1 mm or less (see photo). Its normal (normal?) I'm sorry for my bad English. "residence time" in other words - is"..."? And how to measure it?
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    Scum line on lead edge of plate on Ryobi

    I set: to oscillator -> 4 mm to plate -> 3,5-4 mm
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    Scum line on lead edge of plate on Ryobi

    more pictures...
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    Scum line on lead edge of plate on Ryobi

    Ryobi 662PFH. pH 5, 850-900 mS. Water t° 12-13°C. IPA 12-14%. Huber inks. Prisco and Varn Supreme. At the beginning of print (morning) its OK. Water is 2.2-2.3 (Ryobi unit of measure). Strip on lead edge of paper appears with increasing temperature in pressroom. (24-25°C and higher)...
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    Film has different density from lead to tail edge

    In Primesetter 74 installed Thermoelectric Cooler Tec 12703 30*30 mm. It's right? What are its electrical characteristics? We have it crashes once a year...
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    Film has different density from lead to tail edge

    DonBlock, You are right! The optic was dirty. We cleaned it. Density became uniform and higher. 3.6 (before) -> 4.6 (after)!!! There was one problem... Dirty air bearings nozzles in laser head... It overheats and makes a noise. Can we clean them yourself?
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    Film has different density from lead to tail edge

    Primesetter 74 and online processor Colenta.
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    Film has different density from lead to tail edge

    10% screen (on picture). Lead and tail edge. On solid black: lead edge film dencity - 2.88 tail edge film dencity - 3. 66 "Expose same job with machine in complete darkness" How I would to see in the darkness?
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    Film has different density from lead to tail edge

    Heidelberg Primesetter. Lead edge density is less then tail edge. 10% dots on lead edge almost disappear (like as 3-4%). Online processor is clean, chemistry is new.
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    Need manual for Roland 300 series with perfection

    I need manual for Roland 300 series (305 PP 1+4 2+3) perfection adjustment. We have manual for straight mashine. We do not know anything about the mechanism of the perfection. I do not need the entire Operator's Manual. Can you send me only the part for a description of the mechanism of the...
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