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HP Latex 64 Cutter not recognizing pinch roller

#1 johns10623 2 weeks ago

Had not a problem all morning and sudden...meh. When to contour cut a piece I had just laminated and the cutter head just goes from far right to the left and the warning: "TURN OFF POWER! PINCH ROLLER ARE NOT FOUND" once it reaches it's left side destination. I've attempted to clean the sensor, clean the rollers, change substrates, etc., to no avail. I read somewhere that the mainboard may be bad and that this is common in these HP/Summa cutters. It's a shame as they really do a great job. Anyone have a clue what other steps I could take?

#2 HP Daniela Ciolompea 2 weeks ago

Hi @johns10623,

Follow these recommendations to troubleshoot your issue:

  • Check for strong light interfering with the pinch roller sensor, e.g. when the cutter is near a window and direct sunlight is on the machine.

  • Check for dirt on the pinch roller sensor, and use compressed air to remove dust.

  • The pinch roller sensor may be defective, or the connector (J3) for the sensor came loose from the socket, or has a bad contact. Replace the Pinch Roller Up Down Sensor.

  • The flat cable between the cutter head (J1) and the mainboard (J4) may be defective, or the flat cable was not fitted straight in the sockets. Replace the Flat Cable.

  • The mainboard may be defective. Replace the Mainboard.

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#3 krunker a week ago

Hello, I'm a LexJet technician, and this is a typical problem with vinyl-based materials known as plasticizer migration. The problem is not with the printer, but with the material. To avoid it, maintain the item in a controlled atmosphere and utilize it within 6 months after getting it. If this is a fresh roll (within the last month), contact your material source for advice on how to get compensated or have a replacement roll provided. Plasticizer migration is a film formed by softening substances attempting to leave the vinyl krunker; this may occur on ab vinyl, banner, or vinyl-based wallcoverings. To check whether I'm accurate, take rubbing alcohol and wipe off a section of the sheet before printing. You will see that the region where you wiped will print fine, but the other half will not.

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The opinions expressed above are the personal opinions of the authors, not of HP.

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