Olivetti d-Color MF2001, Service Manual, Page: 176 / 333

2KZ/2K0
1-4-30
7402
Developing unit C type mis-
match problem
Absence of the developing
unit C is detected.
Developing unit
connector inserted
incorrectly.
Reinsert the developing unit connector if
necessary.
Different type of
the developing unit
is installed.
Install the correct developing unit.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-31).
7403 Developing unit M type mis-
match problem
Absence of the developing
unit M is detected.
Developing unit
connector inserted
incorrectly.
Reinsert the developing unit connector if
necessary.
Different type of
the developing unit
is installed.
Install the correct developing unit.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-31).
7404 Developing unit Y type mis-
match problem
Absence of the developing
unit Y is detected.
Developing unit
connector inserted
incorrectly.
Reinsert the developing unit connector if
necessary.
Different type of
the developing unit
is installed.
Install the correct developing unit.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-31).
7411 Drum unit K type mismatch
problem
Absence of the drum unit K is
detected.
Drum unit connec-
tor inserted incor-
rectly.
Reinsert the drum unit connector if neces-
sary.
Different type of
the drum unit is
installed.
Install the correct drum unit.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-31).
7412 Drum unit C type mismatch
problem
Absence of the drum unit C is
detected.
Drum unit connec-
tor inserted incor-
rectly.
Reinsert the drum unit connector if neces-
sary.
Different type of
the drum unit is
installed.
Install the correct drum unit.
Defective PWB. Replace the engine PWB check for correct
operation (see page 1-5-31).
Code Contents Causes
Check procedures/
corrective measures
Service Manual Y113010-4