Double sheet not detected
High severitySymptoms
Two sheets enter together: smashed blanket, emergency stop
Probable causes
- Detector out of calibration or off
- new grammage without recalibrating
- suckers picking two
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The Print Guy · 2026-10-05
Other problems in this category
Feeder/Delivery · TPG-195
Sheet arriving skewed at the front lays
Inconsistent side or front registration; stops from skewed sheets
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Early or late arrival at the lays (timing)
Sheet bouncing off the lays or not arriving; variable front registration
Feeder/Delivery · TPG-198
Excessive speed for the job
Everything worsens with speed: registration, dog ears, piling
Feeder/Delivery · TPG-199
Dog ears (bent corners)
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Feeder/Delivery · TPG-200
Messy delivery pile
Misaligned sheets; impossible to take even lifts for the next process
Feeder/Delivery · TPG-201
Marking in the delivery (tracking)
Wheel or star marks on the freshly printed face