This document describes electric checks and adjustments of CL4xxe printer, including checks for power supply, I-mark sensor and gap sensor
This manual explains how to perform electrical checks, sensor calibrations, ribbon tension adjustments, and print‑head alignment for SATO barcode printers. It includes voltage test points, potentiometer settings, and detailed procedures for major and minor adjustments.
The document provides safety notes, required tools, and illustrated steps to ensure consistent print quality and reliable operation of the 408E/412E models.
| Test point 0 voltage | +5.0 VDC |
|---|---|
| Test point 1 voltage | +2.0 VDC |
| Test point 2 voltage | +3.3 VDC |
| Ribbon unwind tension | 450 g – 550 g |
| Ribbon rewind tension | 950 g – 1050 g |
The voltage at test point 0 should be +5.0 VDC, within a range of +4.8 V to +5.2 V.
The ribbon unwind tension should be between 450 g and 550 g.
Loosen the screws on the head plate, print a test pattern, then pry the adjustment plate forward or backward with a flat‑blade screwdriver before retightening the screws.