Replacing Head Open Sensor - SATO 9001226(A) Service Manual

7.20 REPLACING HEAD OPEN SENSOR

Before proceeding, switch off the printer and remove the main cover , left housing cover and the top left
1.
housing cover to gain access to the internal (electrical and mechanism) hardware. Refer to Section 7.1
Removal of Housing cover for details.
Unscrew five screws to detach the Main (CONT) PCB bracket from the printer frame. Refer to Section
2.
7.6 Replacing Torque Limiter (Ribbon Unwinder) for details.
Turn the purple head lock lever to release the printer head .
3.
Under the print head assembly , remove the screw (1) securing the Head Open sensor assembly (2) to
4.
the printer frame.
From the mechanism side of the printer, disconnect the wiring harness of the Head Open sensor
5.
assembly (2) and carefully remove the Head Open sensor assembly (2) from the print head assembly
side.
Replace the defective Head Open sensor assembly (2) and reverse the above procedures for reassem-
6.
bly.
Note: Insert the wiring harness firmly and arrange the wiring harnesses to ensure that they are not
pinched during installation.
After replacement, check the Head Open sensor condition based on Section 6.11.2 To check Head Open
7.
sensor and Lid Latch Sensor .
1
TG3 Series Service Manual
2
Section 7: Replacement Procedures
Print Head
ASSY
Screwdriver
Page 7-33