How to tell a gear mark from lookalikes on a pharma label
On a pharma label, split a gear mark from lookalikes: a doctor-blade line does not repeat on the tooth pitch. It is one long line. Until you can tell them apart, do not adjust the press for the wrong cause. Light and dark bands repeat at a fixed tooth pitch.
On a pharma label, split a gear mark from lookalikes: a doctor-blade line does not repeat on the tooth pitch. It is one long line. Until you can tell them apart, do not adjust the press for the wrong cause. Light and dark bands repeat at a fixed tooth pitch.

Name it wrong and you adjust the wrong place
Light and dark bands repeat at a fixed tooth pitch. If you call it something else, you skip this step: match the tooth pitch first. Do not change the doctor blade first. Legal type and the barcode decide release. They do not decide what it is called.
How to tell them apart
| What you see | Closer to | How to separate |
|---|---|---|
| Light and dark bands repeat at a fixed tooth pitch. | Gear mark | Do not name it from one white spot |
| A doctor-blade line does not repeat on the tooth pitch. It is one long line. | Handle it as that other defect | Do not use the same adjustment |
| It sits on the legal type and the barcode | Protect this area first | Do not ignore the location just to name it |
Confirm on the spot
- Look, or use a loupe: bands repeat at a fixed tooth pitch.
- Rule it out: a doctor-blade line is one long line, not a tooth-pitch repeat.
- Match the tooth pitch first. Do not change the doctor blade first.