Punch Motor Error - Kyocera TASKalfa 7002i Service Manual

C8020: Punch motor error 2
Object: 4000-sheet finisher + Punch unit
The home position is not aligned within 3s when initializing the home position or standby.
Step Check description
1 Checking the punch unit
2 Checking the punch cam
drive components
3 Checking the connection
4 Replacing the punch motor The punch motor is faulty.
5 Firmware upgrade
6 Replacing the PH main
PWB
7 Replacing the DF main
PWB
Assumed cause
The punch unit is not
assembled properly.
The punch cam drive parts
are not properly attached
or faulty.
The connector is not prop-
erly connected. Or, the
wire is faulty.
The firmware is not the lat-
est version.
The PH main PWB is
faulty.
The DF main PWB is
faulty.
7-441
Measures
If the punch unit is not shifted
manually, repair the part that
restricts the operation.
Reattach the punch cam
drive parts. If not repaired,
replace them.
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire. • Punch motor - PH
main PWB • PH main PWB -
DF main PWB
Execute U240 [Motor] >
[Punch]. If the punch motor
does not properly operate,
replace it.
Upgrade the PH firmware to
the latest version.
Replace the PH main PWB.
Replace the DF main PWB.
2WA/2NJ/2RK
Reference
Wiring dia-
gram
Executing
U240
Firmware
Update
Detaching
and reat-
taching the
DF main
PWB