GBC 2000 Plockmatic Bookmaker - Manual (Page 43)

4
6. T
roubleshooting
If booklet quality is inconsistent, first make sure the actual paper size is matching the
paper size set on the control panel. Perform a Paper size check, see section .
If booklet quality is consistently poor such as staples not aligned with the fold or
staple and fold line do not match the print, see Staple and Fold Alignment under
section 2.
If the folding action is poor of if the cover of the booklet tends to be torn from the set,
see Fold Quality below.
If feed errors occur or if the booklets are not square folded properly, especially
regarding heavier booklets, see SquareFolding Quality below.
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fold Quality
If the adjustments from the control panel result in inconsistencies or inaccuracies it could
be due to paper quality and/or set size. For those cases it is possible to change the ball
configuration in the ball cages in the pre-fold transport. The purpose is to apply adequate
pressure on the set to ensure proper alignment against the fold stop before the set is folded.
The default configuration for BM 2000 is with glass balls closest to the outfeed and plastic
balls closest to the infeed. Additional replacement steel, glass and plastic balls are located in
the tool box above the fold section.
Example:
If booklets comes out with the staples on the back of the booklet, the
configuration is to heavy. The set was allowed to buckle (travel) to far before
it was folded.
If booklets comes out with the staples on the front of the booklet and/or if the
fold is skew, the configuration is to light. The set did not travel all the way
down to the fold stop and was not aligned correctly before it was folded.
See table below for ball configuration guidelines.
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Ball configuration guidelines 1 2 3
Single large sheets, in fold only mode,
with low paper weight/stiffness
Plastic - -
Small quantity of sheets, with low
paper weight/stiffness
Plastic - Plastic
Default configuration Glass - Plastic
Large quantity of sheets Glass - Glass
Large quantity of sheets, with higher
paper weight/stiffness
Steel - Glass
If markings occur on the centre fold when
running larger quantities of sheets
Glass Plastic Plastic
1 2 3
1 2 3
Booklet quality
note
The table above is meant purely to be a guide. Other configurations might work better
depending on the characteristics of the paper quality in conjunction with the set size.