Ladybird Folder
Mar 2014
Service Manual
3-2
FOLDING QUALITY
Initialization Procedure
Prior to troubleshooting fold quality defects, insure that the following parameters are correct:
•
Check that the print exits correctly from the printer, without dog-ears, wrinkles or curl.
•
The media rolls must be positioned correctly.
•
The lead edge on the paper rolls must be straight. If necessary, trim the edge or perform
the cut squareness adjustment.
•
Do not open door or change folding style during folding process.
•
Folder and printer must be correctly aligned.
Fold defects
Fold quality applies to entire print. Defects can occur anywhere on the print. These defects
could be print damage or incorrect folded package dimensions.
Always eliminate problems that cause media damage before attempting to fix fold quality
problems. Some media damage problems can cause fold quality problems.
To fix folding quality problems:
1.
Compare the fold defect to the Fold Quality Definition.
2.
Go to the specific folding quality RAP (Damage, Skew,etc.…)
3.
Identify the defect by comparing the print appearance with the drawing shown in the
“Defect” column.
Refer to the “Probable Cause” column and inspect each parameter to determine which has
caused the specific defect. These causes have been listed in order of “most likely” to have
caused the illustrated defect.
4.
When the “Probable Cause” is identified, refer to the corresponding “Corrective
Action” and perform the indicated adjustment(s) or repair procedure(s).
5.
Perform the Corrective Action
Fold quality definition
The following terms are some of the most commonly used terms that describe fold quality
problems.
FOLD SKEW
FOLD
DAMAGE
FOLD
DIMENSIONS
WRONG
FOLD
OUTPUT
