ใบมีดตัดอัตโนมัติของเครื่องพิมพ์ใบเสร็จ POS ติดขัด: วิธีแก้ รีเซ็ต และเปลี่ยนชุดตัด (Epson, Star, Bixolon)

When the cutter stops, the lane stops. The good news: the large majority of “cutter not cutting” calls aren’t a broken cutter at all — they’re a blade that stalled mid-stroke and lost its home position. A power-cycle and, if needed, a manual blade return clears most of them in well under two minutes. Work through this sequence in order before you reach for a replacement part:

Almost every POS receipt printer uses a guillotine cutter: a motor-driven movable blade slides across a fixed blade to shear the paper, exactly like scissors. The motor turns a worm gear that drives the blade out and back in a single stroke, and an optical or mechanical sensor confirms the blade has returned to its home position before the next receipt prints.

A jam is almost always a break in that cycle. The blade can’t complete its stroke (paper dust binding the track, a foreign object, heavy paper), or it completes but the sensor can’t confirm home (dust on the sensor, a tired motor). Either way the printer halts and flashes an error rather than risk printing over a half-cut receipt. Understanding that cycle is what lets you fix the cause instead of fighting the symptom.

Follow these steps in order. Stop as soon as the printer cuts a clean test receipt — you don’t need to complete every step every time.

Clearing the jam is half the job; stopping the next one is the other half. Match your symptom to the most likely root cause below before you assume the cutter is dying.

For paper-spec problems specifically, our POS receipt paper buying guide covers thickness, width and quality grades in detail — using the wrong roll is a surprisingly common hidden cause of repeat jams.

If the blade re-homes and cleans up but still cuts poorly, the cutter is worn, not jammed. On almost every modern POS printer the cutter is a self-contained module that drops out and back in — you don’t replace the whole printer for a worn blade. Use this decision matrix:

Replacing a cutter module is genuinely a counter-side job: power off, release the cutter cover, unclip the old module, seat the new one until it clicks, close up and run a test cut. If the print itself is also fading, the thermal head is the real culprit — see our thermal printhead replacement guide and consider replacing both wear parts in one service window.

Cutter modules are model-specific — a TM-T88V cutter won’t fit a Star TSP100 — so match the part to your exact printer before ordering. The families below cover the large majority of POS lanes we service and all have a healthy aftermarket parts supply:

To match the right cutter, gear or fixed blade to your unit, browse our printer cutter & gear parts category, or send us the model number from the printer’s base label and we’ll cross-reference the correct part for you. Not sure which model you have? Our terminal & model identification guide shows where to find the label on common POS hardware.