5 - Error Conditions, Problems and Solutions - Quality Problems
Watkiss P2T 2-Knife Trimmer User Manual
29
Side-Trimming problem - poor trim quality
The book is trimmed to the correct size and offset, but the trim quality is bad.
Note. Certain book thicknesses or material can result in a small witness mark on
the bottom corner of the spine, this is normal.
If the side-trim dimension is over 190mm, check that the book supports are fit-
ted. See “Remove and re-fit the Side-Trimmer Book Supports” on page 17.
Call your service engineer if there are marks on the trimmed edge different to a
normal witness mark or if the edge is badly trimmed.
Side-Trimming problem - cannot enter settings
If the user interface will not accept the required settings, this can be due to the
following conditions:
• The
SIDE TRIM
window needs to refresh. Touch
CLOSE
and then re-open the
SIDE TRIM
window.
• The side-trim setting will conflict with the stitch position. Reduce the
STITCH
PITCH
to move the stitch position away from the trim edge.
• The side-trim setting is larger than the book size.
• The side-trim offset is too big relative to the book size and/or the amount of
trim.
FIGURE 19. Normal side-trim blade witness mark