Olivetti d-Copia 6500MF Plus Service Manual page 437

Code Contents
6980 Fuser EEPROM error
No response is issued from
the device in reading/writing
for 5 ms or more and this
problem is repeated five times
successively.
Mismatch of reading data from
two locations occurs 8 times
successively.
Mismatch between writing
data and reading data occurs
8 times successively.
6990 Fuser power supply incom-
patibility
Information won't match
between the engine backup
and the fuser IH PWB.
Y116520-3
Related parts
Fuser unit
Engine PWB
Differences in When this has happened after initialization
settings after using U021, make settings identical with the
initialization voltages on the IH PWB using U169 (see
page 1-3-28,1-3-95).
Fuser IH PWB Replace with a fuser IH PWB specifically
designed with the standard voltage (see
page 1-5-95).
Engine PWB
1-4-109
Check procedures/
corrective measures
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Fuser unit and Engine PWB (YC26)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the Fuser unit (see page 1-5-
67).
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
83).
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
83).
2N8/2N7
Service Manual