Brother DX-2000, Service Manual

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V-2
Problem Cause Check Result Remedy
Misoperation Paper is not supplied in
the Duplex unit. Is the Duplex unit set properly in the
printer? No Set the Duplex unit properly according to the
manual.
Main PCB Does the voltage vary from 24V to 0V at
pin 2 of main PCBÕ
s connector P2?
No Replace the main PCB.
Solenoid Does the solenoid function? No Replace the solenoid.
Main PCB Does the voltage vary from 24V to 0V at
pins 1, 2, 3 and 4 of main PCB's
connector P6? No Replace the main PCB.
Reversible motor Does the reversible motor run? No Replace the reversible motor.
Switching guide Does the switching guide move smoothly?
Refer to Figure 4.29 (
IV -11).
No Reset the switching guide, or replace its parts.
Main PCB
Reverse sensor Does the voltage vary from 5V to 0V at pin
3 of main PCB's connector P5 while the
switching guide is moving? No Replace the reverse sensor or reverse sensor
harness.
Yes Replace the main PCB.
Supply paper in Simplex mode.
Is paper correctly supplied? No Repair the HL-1260 unit.
(Pickup mistake with the first sheet of paper) HL-1660/2060 unit
Pickup roller
(HL-1660/2060)
Duplex tray
DU detection
(HL-1660/2060)
Yes Set the Duplex tray correctly.
Set the HL-1660/2060 pickup roller correctly.
(Pickup mistake with the second sheet of paper)
Troubleshooting (2)
1
2
No Replace the HL-1660/2060 actuator.
Does the actuator (Parts reference list,
11-20) move smoothly?
"JAM DUPLEX" error
message appears though
no paper is supplied in the
Duplex unit.
The paper supplied in the
Duplex unit stops halfway.
"JAM TRAY" error
message appears.
The first or second sheet of
paper is not supplied to the
HL-1260 resist sensor.