2F3/2F4-3.0
1-5-18
7412
Cyan drum unit non- installing error
• The EEPROM (U401) on the drum
PWB 2 (KP-972) inside the cyan drum
unit does not communicate normally.
Defective harness
between drum
PWB 2 (KP-972)
and printer main
unit or poor contact
of the connector
terminals.
Check the connection of the cyan drum unit
and the printer main unit, check the continu-
ity of the harness (S02867), if there is trou-
ble, remedy or replace.
Defective drum
PWB 2 (KP-972).
Replace the drum PWB 2 (KP-972).
Defective engine
controller PWB
(A0004).
Replace the engine controller PWB (A0004).
See page 1-6-41.
Defective LED print
heads relay PWB
(A0008).
Replace the LED print heads relay PWB
(A0008). See page 1-6-44.
Check the continuity of the harness
(S02869), check the connection YC3 con-
nector of the engine controller PWB
(A0004), if there is trouble, remedy or
replace.
7413
Magenta drum unit non- installing
error
• The EEPROM (U401) on the drum
PWB 1 (KP-972) inside the magenta
drum unit does not communicate nor-
mally.
Defective harness
between drum
PWB 1 (KP-972)
and printer main
unit or poor contact
of the connector
terminals.
Check the connection of the magenta drum
unit and the printer main unit, check the con-
tinuity of the harness (S02867), if there is
trouble, remedy or replace.
Defective drum
PWB 1 (KP-972).
Replace the drum PWB 1 (KP-972).
Defective engine
controller PWB
(A0004).
Replace the engine controller PWB (A0004).
See page 1-6-41.
Defective LED print
heads relay PWB
(A0008).
Replace the LED print heads relay PWB
(A0008). See page 1-6-44.
Check the continuity of the harness
(S02869), check the connection YC3 con-
nector of the engine controller PWB
(A0004), if there is trouble, remedy or
replace.
Code
Contents
Remarks
Causes
Check procedures/corrective measures
The incompatible drum unit is installed
to the printer.
The incompatible drum unit is installed
to the printer.
Installing the drum
unit, which is
incompatible with the
printer specification.
Install the compatible drum unit to the printer.
Installing the drum
unit, which is
incompatible with the
printer specification.
Install the compatible drum unit to the printer.
Defective harness
(S02869) between
engine controller
PWB (A0004) and
LED print heads relay
PWB (A0008) or poor
contact of the
connector terminals.
Defective harness
(S02869) between
engine controller
PWB (A0004) and
LED print heads relay
PWB (A0008) or poor
contact of the
connector terminals.
Содержание C5020N - FS Color LED Printer
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