Front and side cuts out of sync
Medium severitySymptoms
Double mark at the corners; bitten or stepped corners
Probable causes
- Cut sequence out of adjustment (front vs head-foot)
- block repositioning between strokes
- play in the holding between cuts
The Print Guy · 2026-10-05
Other problems in this category
Three-knife trimmer · TPG-250
Rough, torn or flaky trim edges
Edges not smooth; torn paper; flaking on laminated covers
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Clamp marks on the cover
Sunken or shiny rectangular imprint on book covers
Three-knife trimmer · TPG-252
Concave or convex front trim (block draw)
Front cut not straight: bowing in or out at the book's middle
Three-knife trimmer · TPG-247
Variable sizes between books in one run
Inconsistent final format; some books shorter or narrower
Three-knife trimmer · TPG-248
Off-square cut (rhomboid book)
Head and foot not perpendicular to the spine; visibly crooked margins
Three-knife trimmer · TPG-249
Draw: cover or first pages pulled
Cover or top sheets shorter or with an inward-curved edge