Replacing Side Hole Sensor - SATO 9001226(A) Service Manual

7.19 REPLACING SIDE HOLE SENSOR

Sensors may malfunction due to dirt buildup, but their function may be restored upon cleaning. Replace
sensors only when you are sure they have failed electrically.
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.
Detach the Cutter unit .
3.
Unscrew the shaft that holds the cutter unit in place, removed the shaft and set aside. Carefully lift and
pull out the cutter unit . Refer to step 1 of Section 6.10.1 To adjust Gap/ Center hole sensor .
Detach the Operator Panel assembly based on step 2 and step 3 of Section 7.15 Replacing Operator
4.
Panel PCB .
To replace Side hole sensor (lower) board
Detach the Power route assembly from the printer frame based on step 3 to step 7 of Section 7.10
5.
Replacing Stepper Motor .
Detach the Media route Frame assembly from the base cover and the printer frame based on step 7 and
6.
step 12 of Section 7.16 Replacing Gap Sensor .
On the base of the Media route Frame assembly , remove four large screws (1) to detach the two pieces
7.
of Frame (Support A) (2) from the Media route Frame assembly .
On the media feed-in area, remove two screws (3) to detach the Paper Guide (B) (4).
8.
Unscrew to remove the two purple Guide collar knobs (5).
9.
From the underneath of the Media route frame assembly , remove four E-ring (6) and withdraw two
10.
pieces of Slide shafts (7).
Remove the Body B (side hole sensor) ASSY (8) and Body A (side hole sensor) ASSY (9).
11.
From the Body A (side hole sensor) ASSY (9), remove two screws (10) securing the Lower Side hole
12.
sensor board (11). Replace the defective Lower Side hole sensor board (11) as necessary.
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TG3 Series Service Manual
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Section 7: Replacement Procedures
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