What to do if the cutter of the 80mm thermal receipt printer gets stuck?

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If the automatic cutter of your 80mm thermal receipt printer gets stuck during use, don’t worry—this is a common minor malfunction that can be resolved quickly with simple manual operations. Follow the step-by-step guide below to fix it safely without damaging the printer:

Open the Cutter Cover

First, power off the printer to avoid accidental activation during operation (this is a key safety precaution for Hoin thermal printer maintenance). Then, Do not attempt to force the main paper cabin open. Instead, use a small tool (such as a flathead screwdriver) to gently pry open the front plastic cover of the cutter mechanism. (As shown in the figure)

Note: Refer to the diagram for the exact position of the opening notch to ensure you apply force evenly and prevent the cover from breaking.

Locate the Manual Adjustment Gear

After opening the front cover, look inside the printer’s paper compartment. You will find a prominent black gear (marked with a black label for easy identification, as shown in the figure). This gear is directly linked to the cutter mechanism—adjusting it will help reset the stuck cutter.

Manually Reset the Cutter Blade

Hold the black gear firmly with your fingers (or use a tool for better grip if needed) and rotate it slowly toward the interior of the printer. Rotate continuously until you feel resistance decrease—this indicates the stuck cutter is being pulled back by the gear’s movement. (As shown in the figure)

Note: Rotate gently and steadily; do not use excessive force to avoid damaging the gear or cutter assembly. The rotation direction is inward (toward the center of the printer).

Open the Paper Cabin

Once the blade has retracted, the locking mechanism will release. You should now be able to open the printer’s paper cabin cover normally. Clear any jammed paper or debris from the print head and the cutter path. (As shown in the figure)

Reassemble and Test

After confirming the cutter is retracted and the paper compartment is clear, align the front cover with the printer’s body and press it firmly until you hear a "click"—this means the cover is securely closed. Power on the printer and perform a test print to verify that the cutter works normally. (As shown in the figure)