There are a number of scenarios in which a glue purge may help restore a poorly functioning printer.
- If the system has been shipped by air pressurisation and/or thermal cycling of the system while in transit can impair the glue performance.
- The longer a system is stored without use the more likely it is that you’ll encounter a glue system that has blockages or glue that is out of date.
- Glue has a shelf life unopened of 1 year and should be used within 6 months of opening for best performance. You may need to replace out of date glue.
There's a procedure attached below.