No Paper Is Fed From Tt - Brother HL-L5000D Service Manual

4.2.3 No paper is fed from TT

<User Check>
• Check that the paper is set in the paper tray correctly.
• Check that there is not too much paper set in the paper tray.
• Flip over the paper in the paper tray or rotate the paper 180°.
• Check that the thickness of the paper is 60 to 120 g/m
• Check that the MP tray, LT or TT are not set as the paper tray.
• Flip through the paper and reset it in the paper tray.
• Clean the paper pick up roller.
• Install the latest main firmware.
• Replace the relay AC cord.
• Turn the power switch of TT OFF and then back ON again.
Step
Dirt on a paper dust cleaning
1
roller of the paper tray
Attachment failure of a roller
2
holder ASSY
Connection failure of the TT
3
motor harness
Connection failure of a TT paper
4
feed sensor harness
Connection failure of a TT relay
5
PCB harness
Connection failure of the TT
6
control PCB harness
Connection failure of the TT low-
7 voltage power supply PCB
harness
Connection failure of a TT
8
release clutch harness
Connection failure of a TT
9
pickup clutch harness
Connection failure of a TT jam
10
sensor harness
A TT paper empty actuator
11
coming off
Abrasion of a paper pick up
12
roller
13 A TT release clutch failure
14 A TT pickup clutch failure
A TT paper empty sensor failure Replace the appropriate TT paper empty
15
16 TT balance sensor L/R failure
A TT jam sensor failure
17
18 Damaged a plate gear
19 Damaged an LT/TT connector
20 TT motor failure
21 A TT relay PCB failure
22 TT control PCB failure
23 Panel PCB failure
TT low-voltage power supply
24
PCB failure
25 Main PCB failure
Cause
Clean the appropriate paper dust cleaning
roller. (Refer to
Reattach the appropriate roller holder ASSY
correctly.
Reconnect the TT motor harness.
Reconnect the appropriate TT paper feed
sensor harness.
Reconnect the appropriate TT relay PCB
harness.
Reconnect the TT control PCB harness.
Reconnect the TT low-voltage power supply
PCB harness.
Reconnect the appropriate TT release clutch
harness.
Reconnect the appropriate TT pickup clutch
harness.
Reconnect the appropriate TT jam sensor
harness.
Reattach the appropriate TT paper empty
actuator.
Replace the appropriate PF kit.
Replace the appropriate TT release clutch.
Replace the appropriate TT pickup clutch.
sensor PCB ASSY.
Replace the TT balance sensor L/R.
Replace the appropriate TT jam sensor PCB
ASSY.
Replace the appropriate plate gear.
Replace the appropriate LT/TT connector.
Replace the TT motor.
Replace the appropriate TT relay PCB ASSY.
Replace the TT control PCB ASSY.
Replace the panel PCB ASSY.
Replace the TT low-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
2-86
2
(paper tray 2 to 5).
Remedy
Fig. 2-9.)
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