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IV - 2
Tightening Torque List
Location Screw type Q'ty Tightening torque Loosening torque
(kg•cm) (kg•cm)
Option cover Screw, pan (washer) M3x8DB 2 4 ±1 2 to 6
ADF parts Taptite, pan (washer) B M3x6 1 4 ±1 2 to 6
Panel rear cover Taptite, cup B M3x8 2 6 ±1 2 to 6
Scanner frame ASSY Taptite, cup B M3x10 2 9 ±2 2 to 6
Scanner motor Screw, pan (washer) M3x6DA 1 7 ±2 Min. 2
Scanner grounding leaf spring Taptite, cup S M3x6 1 7 ±2 Min. 2
CIS shield plate Taptite, cup S M3x6 1 7 ±2 Min. 2
Pinch roller leaf spring Taptite, cup B M3x8 1 8 ±2 Min. 2
Control panel locks Taptite, cup B M3x8 2 8 ±2 Min. 2
Scanner drive unit Taptite, cup B M3x8 1 8 ±2 Min. 2
Taptite, cup B M3x10 1 8 ±2 Min. 2
Top cover stopper Taptite, cup S M3x6 2 8 ±2 Min. 2
Hinges on top cover Taptite, bind B M4x12 4 10 ±2 3 to 6
Hinges on main cover Taptite, cup B M4x12 4 10 ±2 3 to 6
Handset mount Taptite, cup B M3x10 2 8 ±2 2 to 6
Heat-fixing unit Taptite, bind B M4x12 1 10 ±2 4 to 6
Laser unit Taptite, bind B M4x12 3 8 ±2 3 to 6
Toner sensor PCB Taptite, cup B M3x8 1 6 ±2 3 to 5
Bottom plate Taptite, bind B M4x12 7 10 ±2 3 to 6
Taptite, cup S M3x6 3 8 ±2 2 to 6
AC grounding wire Screw, pan (washer) M4x8DB 1 6 ±2 2 to 9
Interface connector Screw, pan M3x6 2 8 ±2 Min. 4
Low-voltage power supply PCB Taptite, cup S M3x6 1 8 ±2 2 to 6
Main PCB Taptite, bind B M4x12 1 10 ±2 2 to 6
High-voltage power supply PCB Taptite, bind B M4x12 1 10 ±2 3 to 6
Gear drive unit Taptite, cup B M4x20 3 12 ±2 3 to 6
Main motor Taptite, cup S M3x8 2 8 ±2 Min. 4
NCU bracket Taptite, bind B M4x12 1 10 ±2 3 to 6
NCU PCB Taptite, cup S M3x6 1 8 ±2 2 to 6
Scanner grounding plate Taptite, cup B M3x8 1 6 ±2 2 to 6