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Pretty basic but check that the form/plate rollers aren't oscillating across the plate. If they are adjustable, turn off the oscillation. If they aren't adjustable & have play in them shim the rollers so there is no play. One of the first things we check before going down they chemistry line.

You can also check if the cylinder has been knocked out of round by printing a dry solid. Install a new blanket and packing. Set up on full size sheet, preferably an art paper. Print a solid with the dampers disengaged. Back the impression off until the image appears mottled. Keep backing the...

Agree - If you do a print test it's also a good idea to pull some dry solids. Ask them to put on new blankets & packing. Run a solid without dampers & back off the impression. Should be a nice even/broken print. This is good alternative to clocking cylinders with a dial guage & finding you need...

Superblue also do a blue glass jacket that locks directly into the transfer clamps like the original chrome foil jackets. They are a cheaper alternative, require daily cleaning but seem to give good results on the whole Heidelberg range.

Can only do for a Heidelberg. If so, which model?

Not what it's called but correct area to adjust. Scale numbered 1 to 6 in red & white (Operator & Drive side). It will change ink density front to back of sheet. No difinative number to use for every job as the ink coverage on the job, type of ink etc will also influence heavily. Complicated to...

Heidelberg roller damper setting Heidelberg roller damper setting Quick method for H/berg with Alcolor. New press - Vario off, plate inkers /ghostbusters off, ink oscillation on, plate cocking zero. Remove metering roller/damper Run up opaque white or pantone yellow to see stripes easier...