In Press Repair of Cave In Damage

Damage: Large cave-in caused by jam-up.

Example:  “I own a large six-color sheet-fed printing press.  One night while it was running a large amount of shop towels was drawn into the press.  This jam-up created a lot of pressure between my blanket and impression cylinders.  Now there’s a low area in each of these cylinders and my press will not print uniformly any more.  I need help!” In-Press Solution: Press the low area out with no blemishes.