3-5
Confidential
3.4 SCREW TORQUE LIST
Page
Location of screw Screw type Q’ty
Tightening torque
N•m (kgf•cm)
3-50 Grounding wire
(for ADF drive unit and CIS motor)
Taptite, cup S M3x6 1 0.40±0.1 (4±1)
3-53 Scanner cover (Scanner unit) Taptite, bind B M4x12 (black) 2 0.80±0.1 (8±1)
3-54 Scanner hinge Taptite, bind B M4x12 (white) 6 0.80±0.1 (8±1)
3-57 ADF & document cover ASSY Taptite, bind B M4x12 M9 2 0.80±0.1 (8±1)
3-59 ADF front cover Taptite, cup B M3x10 2 0.50±0.1 (5±1)
3-60
Document cover hinge
(Together with ADF reinforcement plate by 2 screws)
Taptite, cup B M3x10 6 0.50±0.1 (5±1)
3-69 Upper ADF chute Taptite, cup B M3x10 5 0.50±0.1 (5±1)
3-71 Document guide gear Taptite, B M3x6 1 0.40±0.1 (4±1)
3-73 Lower ADF chute Taptite, cup B M3x10 2 0.50±0.1 (5±1)
3-78 Reinforcement plate Taptite, cup S M3x6 1 0.80±0.1 (8±1)
ADF drive unit
(Together with grounding wire by one screw)
Taptite, cup B M3x10 3 0.50±0.1 (5±1)
ADF motor Screw pan (s/p washer) M3x6 1 0.40±0.1 (4±1)
3-82 Control panel ASSY Taptite, cup B M3x10 4 0.40±0.1 (4±1)
Grounding wire (for touch panel)
*1
Taptite, cup S M3x6 1 0.40±0.1 (4±1)
3-84 Color LCD unit Taptite, cup B M3x10 2 0.40±0.1 (4±1)
3-91 Upper cover Taptite, bind B M4x12 7 0.80±0.1 (8±1)
3-97 Main PCB shield Taptite, cup S M3x6 4 0.40±0.1 (4±1)
Main PCB Taptite, cup S M3x6 1 0.40±0.1 (4±1)
3-98 Main PCB shield frame
(Together with MJ/PS shield unit)
Screw, bind M3x6 2 0.40±0.1 (4±1)
3-99 Lower cover (for LT cover)
*2
Taptite, bind B M4x12 (white) 6 0.80±0.1 (8±1)
3-101 MJ/PS shield unit Taptite, cup S M3x6 1 0.40±0.1 (4±1)
Screw, bind M3x6 1 0.40±0.1 (4±1)
3-103 Grounding wire
*3
Screw, pan (washer) M4x8DB 1 0.60±0.1 (6±1)
Power supply PCB Taptite, cup S M3x6 3 0.40±0.1 (4±1)
AC cord holder Screw, bind M3x4 1
2
*3
0.40±0.1 (4±1)
Grounding screw
*4
Screw, bind M4x6 1
*4
0.40±0.1 (4±1)
MJ shield Screw, bind M3x4 2 0.40±0.1 (4±1)
MJ PCB Taptite, cup S M3x6 1 0.40±0.1 (4±1)
3-112 Ink cartridge detection sensor PCB Taptite, cup B M3x8 1 0.50±0.1 (5±1)
3-117 DX chassis Taptite, cup B M3x10 2 0.40±0.1 (4±1)
Belt tension adjuster for SB timing belt Screw, pan (s/p washer) M3x5DB 1 0.40±0.1 (4±1)
3-119 Engine unit Taptite, cup B M3x10 2 0.40±0.1 (4±1)
3-123 Maintenance unit Taptite, cup B M3x10 3 0.60±0.1 (6±1)
Taptite, cup S M3x6 1 0.80±0.1 (8±1)
3-124 ASF drive ASSY Taptite, cup B M3x10 1 0.60±0.1 (6±1)
3-125 Carriage motor Screw, bind M3x6 2 0.60±0.1 (6±1)
3-126 CR support chassis Screw, bind M3x6 1 0.60±0.1 (6±1)
3-132 PF motor frame Screw, bind M3x6 1 0.60±0.1 (6±1)
3-133 PF encoder sensor PCB Screw, bind M2x12 1 0.15±0.05
(1.5±0.5)
Paper feed motor Screw, bind M2.6x4 2 0.40±0.1 (4±1)
*1 Models with touch panel
*2 Models with paper tray #2
*3 200 V series
*4 100 V series