Operator's Manual
3950 Series
121
20. Possible Malfunctions and their Remedies
!
Only service technicians should deal with electrical and electronical
components!
!
Before removing covers and other safety devices, pull the power plug
and secure the machine against unauthorized or unintentional use
(warning sign).
Take the following precautions before correcting a malfunction:
Error
see no.
Paper lift mechanism of flat pile feeder does not work 1
2
Pump does not start
3
Malfunction in feed section
4
5
6
Fold plate stops of fold plates 1 to 4 do not move
SETTING FOLD STYLE remains in display
7
8
9
10
Stops and deflectors of fold plates 1 to 4 remain in
base position (no fold) although a fold length was
entered - 0000 remains in display
11
Paper stop of one fold plate cannot be moved to
another position
7
12
Standard folds cannot be set - SETTING FOLD
STYLE remains in display
7
13
Paper is not transported into fold plate
8
10
14
15
Motor of fold roller drive cannot be started
16
17
Display shows DOUBLE SHEET
18
19
Sudden machine stop
20
21
22
Belts on delivery table do not move
23
24
Pump and main motor cannot be switched off via
keyboard
25
Suction drum does not move
26
The red jam warning light at the flat pile feeder
comes on
27