Olivetti PK-512, Service Manual, Page: 23 / 26

8. Jam display Field Service Ver. 1.0 Feb. 2007
18
PK-512/513
T
roubleshooting
8.3 Solution
8.3.1 Initial check items
• When a paper misfeed occurs, first check the following initial check items.
8.3.2 Code: 7243
A. Detection timing
B. Action
Check Item Action
Does the paper meet product specifications? Change the paper.
Is paper curled, wavy, or damp?
Change the paper.
Instruct the user in correct paper storage.
Is a foreign object present along the paper path, or is the
paper path deformed or worn?
Clean or change the paper path.
Are the rolls/rollers dirty, deformed, or worn? Clean or change the defective roll/roller.
Are the edge guide and trailing edge stop at the correct
position to accommodate the paper?
Set as necessary.
Are the actuators found operational when checked for
correct operation?
Correct or change the defective actuator.
Type Description
Punch kit misfeed
detection The after punch home sensor (PS301) is not turned ON after a lapse of a
given time after the punch motor (M301) is turned ON.
Relevant electrical parts
Punch motor (M301)
Punch home sensor (PS301) Punch drive board (PDB)
FNS control board (FSCB)
Step Action
WIRING DIAGRAM
Control signal
Location
(Electrical
component)
1 Initial check items — —
2 M301 operation check
PDB CN45PDB-1 (DRV1)
PDB CN45PDB-3 (DRV2) PK-511/512/513
C-2 to 3
3 PS301 I/O, sensor check PDB CN46PDB-5 (ON)
PK-511/512/513
C-3
4 Change PDB — —
5 Change FSCB — —
Service Manual Y108421-6