Kyocera TASKalfa 3050ci Service Manual page 326

Code Contents
F040 Communication error
between main PWB and
print engine
F041 Communication error
between main PWB and
scanner engine
F050 Print engine ROM check-
sum error
F090 Communication error
between main PWB and fax
control PWB
F278 Power supply in drive sys-
tem error
Causes
Defective main Turn the main power switch off/on to restart
PWB. the machine. If the error is not resolved,
replace main PWB (see page 1-5-49).
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-54).
Defective main Turn the main power switch off/on to restart
PWB. the machine. If the error is not resolved,
replace main PWB (see page 1-5-49).
Defective engine Turn the main power switch off/on to restart
PWB. the machine. If the error is not resolved,
replace engine PWB (see page 1-5-54).
Defective main Turn the main power switch off/on to restart
PWB. the machine. If the error is not resolved,
replace main PWB (see page 1-5-49).
Defective fax con- Replace the fax control PWB and check for
trol PWB. correct operation.
Main power switch Turn on power.
(To switch off power, first press the power
was turned off
without using the key until the main power indicator goes off,
power key, or a then turn the main power switch off.)
power failure has
occurred.
1-4-86
2LK/2LN/2LM/2LC
Check procedures/
corrective measures