Rap Skuff Marks On Paper; Rap Lead Edge Damage - GBC AdvancedPunch Technical & Service Manual

3.5 RAP Skuff Marks On Paper

3.6 RAP Lead Edge Damage

Advanced Punch Service Manual
Perform the Inspection and Cleaning Procedures detailed for the following belts
and rollers.
Aligner Panel procedure
Idler Rollers procedure 1.4.12
Drive Rollers procedure
Bypass Paper Path procedure
Aligner Drive Belt (Green belts) procedure
Some areas of the lead edge may be damaged either by the Backgage Gates or
the Exit Roller Pinch Rollers. This procedure will assist you to identify the source
of the damage and to perform corrective actions.
Procedure
1. Review problem with the customer; request that the customer reproduce the
problem to fully understand the materials, workflow and run modes involved.
2. Run 50-100 sheets into a single stack and compare the defect with the photos
below.
Figure 3.3 Damage from Exit Pinch Rollers
Root cause: The lead edge damage displayed in
exiting the punch path strike the upper Exit Pinch Rollers with upwards curl. The
lead edge will be damaged in two areas.
Corrective actions: Check the curl of the sheets entering the GBC Module.
Adjust the curl to decrease upwards curl.
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Output Quality Analysis Procedures
1.4.10
1.4.13
1.4.16
4.6.3
Figure 3.3 occurs when sheets
3-3