Chapter 2 Operating Principles
2-1. Operation of Each Mechanism
CL-S400DT 2-4
2-1. Operation of Each Mechanism
This printer is a direct thermal label & barcode printer comprised of the following mechanisms:
media feed, label/tag detection, print head up/down detection, head balance adjustment and media
thickness adjustment.
This section describes the operation of each of these mechanisms.
2-1-1. Locations of Main Electrical Parts
The following figure shows the locations of main electrical parts.
Part name Description
Unit, Motor This motor feeds media.
SA2 Head Up SW
(Head Up Sensor)
This sensor is a mechanical switch to detect the print head position;
up or down.
SA Adjust Sensor U
(Adjustable sensor
(Transparent sensor))
This sensor consists of a phototransistor and is used to detect a
label stuck on liner and a U-shaped notch on tag by the
combination of this sensor and the light emitter of the “SA Adjust
Sensor L”. The sensor also detects a media end.
SA Adjust Sensor L
(Adjustable sensor
(Reflective sensor))
This is a reflective type photointerrupter that detects a black mark
on the back of media and media end.
SA2 Head This is a thermal head consisting of a head driver and thermal
elements. Used to print on media by heating the thermal elements.
It incorporates two thermistors to detect the temperature of “SA2
Head”.
SA Main PCB Controls entire printer system.
100V
200V
0
1
2
3
4
5
Unit Motor
SA Head Up SW
SA Adjust Sensor L
SA Adjust Sensor U
SA2 Head
SA LCD PCB
SA Main PCB
SA Power Supply
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General
Weight and Dimensions
