Kyocera Copystar CS 3011i Service Manual page 309

Code Contents
0830 FAX control PWB flash pro-
gram area checksum error
A checksum error occurred
with the program of the FAX
control PWB.
0840 Faults of RTC
("Time for maintenance T" is
displayed)
[Check at power up]
The RTC setting has reverted
to a previous state. The
machine has not been pow-
ered for 5 years (compared to
the settings stored periodically
in the EEPROM).
The RTC setting is older than
00:01 on January 1, 2000.
[Checked periodically (in 5-
minute interval) after powered
up]
The RTC setting has reverted
to a state older than the last
time it was checked.
10 minutes have been passed
since the previous check.
After C840 is detected, the
machine enters in disconnec-
tion mode after the main
power switch has been
switched on and off and indi-
cates 'Maintenance T.'
0870 PCFAX control PWB to main
PWB high capacity data
transfer error
High-capacity data transfer
between the FAX control PWB
and the main PWB of the
machine was not normally
performed even if the data
transfer was retried the speci-
fied times.
Related parts
FAX software
FAX control PWB
Battery ( main
PWB)
Main PWB
Replace the main PWB (see page 1-5-54).
FAX control PWB
HDD
Execute U024 to initialize the HDD (see
page 1-3-29).
Main PWB
Replace the main PWB (see page 1-5-54).
1-4-16
Check procedures/
corrective measures
1. Reinstall the fax software.
1. Execute initializing by U600.
2. Replace the FAX control PWB.
1. Make sure that the back-up batteries on
the main PWB are not short-circuited.
2. Reset Maintenance T by executing
U906 (see page 1-3-191).
3. If the same C call is displayed when
power is switched on and off, replace the
back up battery.
4. If communication error (due to a noise,
etc.) is present with the RTC on the main
circuit PWB, check the PWB is properly
grounded.
1. Turn the main power swtch off and after
5 seconds, re-mount the FAX controller
PWB, then turn power on.
2. Replace the FAX control PWB.
2RG/2RH