Tektronix Phaser 780 Color, Service Quick Reference Manual

Page: 49 / 234

Service Guide
35
Second Bias
Transfer
Roller Error The engine control board detected that
the measured current value across
second bias transfer roller was not within
specifications.
1.
Power cycle the printer
2.
Replace the high voltage
power supply
3.
Replace the engine control
board
4.
Replace the second bias
transfer roller
5.
Replace the accumulator belt
assembly
Replace
Fuser The fuser has reached end of life. The
engine control board detected that the
fuser has processed 250,000 images or
the toner dispense motor has
accumulated more than 70,564 x 100ms
of running time.
1.
Use diagnostics to verify the
print count
2.
Replace the fuser
3.
Replace the engine control
board
Printer
Maintenance
Required -
Replace the
Accumulator
Belt Cleaner The accumulator belt cleaner is nearing
end of life. The engine control board
detected that the accumulator belt
cleaner processed 100,000 sheets of
paper.
1.
Use diagnostics to verify the
print count
2.
Replace the accumulator belt
cleaner
3.
Replace the engine control
board
Printer
Maintenance
Required The accumulator cleaner belt has
reached end of life. The engine control
board detected that the accumulator belt
cleaner has processed over 102,000
belt clean cycles.
1.
Use diagnostics to verify the
print count
2.
Replace the accumulator belt
cleaner
3.
Replace the engine control
board
Printer
Maintenance
Required -
Replace the
Second Bias
Transfer
Roller The second bias transfer roller is
nearing the end of its life. The engine
control board detected that the second
bias transfer roller has processed
100,000 sheets of paper.
1.
Use diagnostics to verify the
print count
2.
Replace the second bias
transfer roller
3.
Replace the engine control
board
Error code
and
message Description Corrective action