Disassembly Flowchart - Brother MFC990CW Service Manual

Inljet mfc/dcp
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Disassembly Flowchart

6.1.2
Scanner cover
(Scanner unit)
*1
(including ADF
)
80/80
6.1.2
Scanner cover
support/damper
30/30
6.1.5, 6.1.6
Control panel ASSY
(including media module
cover)
25/25
(Note 2)
6.1.8
*3
Backup battery
10/10
6.1.14
CR encoder strip
5/5
6.1.14
Head cover
30/10
6.1.14
Carriage PCB ASSY
20/20
(Note 4)
6.1.14
Print head
15/20
*1 For models with ADF
*2 For models without ADF
*3 For models with backup battery
*4 For wireless LAN-enabled models
Sensors, encoders, and thermistors
(Note 1) The ADF unit has the document front and rear sensor PCBs.
(Note 2) The control panel PCB has the scanner cover sensor and ink cartridge cover sensor.
(Note 3) The engine unit has the registration sensor PCB and PF encoder PCB (having PF encoder sensor).
(Note 4) The carriage PCB in the head/carriage unit has the paper width sensor, head thermistor, and CR encoder sensor.
(Note 5) The ink refill ASSY has the ink cartridge detection sensor PCB (having four ink cartridge detection sensors) and ink
empty sensor PCB (having four ink empty sensors and the casing internal temperature thermistor).
(Note 6) The maintenance unit has the purge cam switch and cap lift cam switch. The ASF motor unit has the ASF encoder
sensor.
6.1.3
- ADF & document
Disassembly of
*1
cover ASSY
ADF & document
*2
- Document cover
cover ASSY
35/35
-/-
Upper cover
35/35
6.1.11
Main PCB shield
15/15
6.1.11
Main PCB
45/45
6.1.11
Main PCB
shield frame
15/15
6.1.15
PF encoder disk
Ink absorber box
5/10
5/10
6.1.15
Ink absorber felt
5/5
6.1.14
Ink refill ASSY
30/35
(Note 5)
Maintenance unit
6.1.4
6.1.18
Paper tray ASSY
*1
35/40
(Note 1)
6.1.8
6.1.10
Inner media module
cover
5/5
6.1.10
*4
WLAN PCB
10/10
6.1.8
*5
Speaker
10/20
6.1.9
Antenna & cordless
*6
PCB ASSY
35/45
6.1.15
Jam clear cover
15/10
6.1.16
Engine unit
30/40
(Note 3)
6.1.17
Flushing box
20/50
5/5
(Note 6)
*5 For models with speaker
*6 For models with cordless handsets
*7 For MFC only
6-5
Disassembly/reassembly
standard time (seconds)
6.1.10
Ink cartridge cover
10/10
6.1.12
MJ/PS shield unit
*7
MJ PCB
30/30
Power supply PCB
50/50
6.1.1
6.1.10
Front cover
10/10
6.1.16
(BHmini9-Flow_E)
Confidential

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