Water bottling line troubleshooting guides
English · WaterBottlingLine.com
Unreadable Bottled Water Date Codes: Trace Printing and Verification
Distinguish missing print, blurred characters, poor adhesion and an otherwise clear but incorrect message. The printer and the code-inspection station perform different tasks. Keep the approved content, actual printed result and inspection decision together for each sample.
Follow the observed pattern
| What you observe | What to compare next |
|---|---|
| Print is stretched or repeated | Compare trigger events, encoder input and container motion through the print zone. Check event timing against the approved setup without reaching into moving equipment. |
| Print wipes off or spreads | Record the surface before printing, substrate lot, consumable identification and elapsed drying or curing conditions. Use the printer supplier’s approved compatibility test. |
| Clear print contains wrong data | Compare the authorized batch instruction, selected message, date rollover and line or format change procedure. Print clarity cannot compensate for incorrect content. |
Evidence to send with a support request
Send images of the complete code on good and failed bottles, the approved message, trigger and speed history, consumable details, surface condition and verification results. Include the local time basis and any rollover event without exposing private customer data.
Illustrative diagnostic comparison
If a clear wrong date passes the camera, investigate message authorization and inspection reference separately. If correct characters become blurred only when spacing changes, compare motion and trigger evidence before changing the coding technology.
Confirm the next action
Record the bottle, cap and material lot; machine and format recipe; time, speed and operating state. Separate direct observations from suspected causes. Preserve an unchanged comparison and identify who approved any trial.
- Record the approved change, comparable before-and-after observations, defect counts with their denominators, and quality or maintenance approval. A symptom disappearing once does not establish a durable correction.
- Repeat the check during the operating state that originally produced the defect. Keep restart losses and rejected product in the record; a faster machine reading alone is not proof of improvement.
Use approved site procedures and the machine manual. Isolate energy before physical inspection or clearing a jam; never bypass guards or interlocks. Quality personnel decide containment and release of affected product. These guides do not prescribe universal pressure, temperature, torque or cleaning settings.
Download the investigation record CSV
Related specification and planning guides
Required evidence — Date Coding Method for Bottled Water
| Input or result / Unit | Evidence to request | Substitution to avoid |
|---|---|---|
| Bottle rate (Bottles/h) | Identify the counted bottle boundary and the exact observation interval. Retain opening and closing counter readings, accepted quantity and operating mode so the hourly rate can be reproduced. | A machine nameplate rate, instantaneous display and accepted output over a shift are different records. Do not substitute one for another without stating the change of basis. |
| Printable length (mm) | Define the usable printable length along the direction of travel for the stated code and substrate. Show the measurement points on the actual print area. | Total label width or bottle circumference is not automatically the printable window. Curvature, margins and an unsuitable surface can reduce usable space. |
Mr Kcal · Allot Tech (Suzhou) Co., Ltd.
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