Xerox 8830 Service Manual page 274

LL- 52 ERRORS AFTER
INSTALLING NEW CONTROL PWB
PROBLEM
LL-52 errors after installing a new control
pwb..
CAUSE
NVM eprom was not moved from the original
Control PWB to the new Control PWB.
SOLUTION
Ensure that when the Control PWB is
changed, that the NVM eprom (Component
U40) is transferred to the new PWB. Ensure
that the NVM eprom is installed onto the
Control PWB with the "dot" in the lower left
corner.
REQUIREMENTS FOR FIELD RESOLUTION
. DOCUMENTATION
REP 3.1
• TAG
N/A
• PART NUMBERS
N/A
• CUT IN SERIAL NUMBER
Service Notes
COOLING FAN NOT RUNNING
PROBLEM
Cooling fan not running.
CAUSE
Early IOT firmware could cause a cooling fan
to start improperly. This problem only occurs
with Delta cooling fans.
SOLUTION
Check the label on the cooling fans. If the
label reads Delta DC Brushless install Tag 11
Firmware (Ver 1.03). If Japan Servo is the
manufacturer replace the cooling fan assy.
If not noticed, the temperature inside the
printer would increase on long runs. The first
indication would be cleaning blade squeal
during operation. Then the next probable
failure would be a bound up toner auger from
solidified toner.
REQUIREMENTS FOR FIELD RESOLUTION
• DOCUMENTATION
N/A
• TAG
11
• PART NUMBERS
U.S. - 600K59933
E.O. - 600K59953
• CUT IN SERIAL NUMBER
U.S.. 8YG06O368 and up
E.O.-110907114-1 and up
1/98
6.40
CLEANING BLADE SQUEALS
DURING PRINT CYCLE
PROBLEM
Squealing noise from cleaning blade during
print cycle.
CAUSE
Excessive heat build up in the printer.
SOLUTION
Make sure both cooling fans are functioning
properly. If they are not see the article titled
"Cooling Fan Not Running" in this section.
REQUIREMENTS FOR FIELD RESOLUTION
• DOCUMENTATION
N/A
• TAG
11
• PART NUMBERS
U.S. • 600K59933
E.O. • 600K59953
t CUT IN SERIAL NUMBER
U.S.- 8YG060368 and up
E.O.-110907114-1 and up
8830