Service manual

3 TROUBLESHOOTING BY MESSAGE DISPLAYED
7-8
DUPLO DF-755 86V-M12D0-0
PRAT-1 SET ERR
1) Is the attaching position of the first folding plate switch (SW2) appropriate?
No:
Adjust the position.
Refer to "Chapter 5 > 3.1 Adjusting the interlock switch position."
2) Are there foreign particles on the detection part of the first folding plate switch (SW2) or is it
broken or deformed?
Yes:
Clean the part or replace the first folding plate switch (SW2).
No:
Check the connection of connectors between the first folding switch (SW2) and MC
unit (PCB1), and if it is found to be normal, replace the top first folding switch
(SW2).
PRAT-2 SET ERR
1) Is the attaching position of the second folding plate switch (SW3) appropriate?
No:
Adjust the position.
Refer to "Chapter 5 > 3.1 Adjusting the interlock switch position."
2) Are there foreign particles on the detection part of the second folding plate switch (SW3) or
is it broken or deformed?
Yes:
Clean the part or replace the second folding plate switch (SW3).
No:
Check the connection of connectors between the second folding switch (SW3) and
MC unit (PCB1), and if it is found to be normal, replace the second folding plate
switch (SW3).
OVER LOAD
1) Is the paper thick and out of specification?
Yes:
Use paper that meets the specification.
Refer to "Chapter 1 > 2.3 Paper."
2) Are there foreign particles on the following parts or is any of the parts deformed or broken?
•Paper feed path
•Driving path of the AC motor (M1)
Yes:
Clean the parts or replace the deformed or broken part.
3) Is the driving section adjusted properly?
Refer to "Chapter 5 > 1 PAPER FEED SECTION."
No:
Adjust the driving section.
4) Does the following motor function properly?
•AC motor (M1)
No:
Check the connection of connectors between the AC motor (M1) and MC unit
(PCB1), and if it is found to be normal, replace the AC motor (M1).
5) Is the problem solved after replacing the AC motor (M1)?
Yes:
End.
No:
Replace the MC unit (PCB1).