Filter
Top Products
2-76 Service Manual
927.xx Fan service check
927.xx can be used for the main fan or the cartridge fan.
• Main fan—927.00, 927.01, and 927.03 through 927.07.
• Cartridge fan—927.02
Main fan
Service tip: The main fan runs at full speed at the end of POR or when the printer is printing. It will only run half
speed when the printer is in the Ready state and not printing.
Cartridge fan service check
Error code 927.02 indicates a problem with the cartridge fan.
FRU Action
1 Main fan Check the main fan to make sure it is plugged into J4 on the system
board. If the fan cable id correctly connected to J4, check the cable
and the cable connector for any signs of damage. If damaged,
replace the main fan assembly. See “Main fan removal” on
page 4-56. If undamaged, go to step 2.
2
Main fan Turn the printer off and check the main fan for any signs of blockage
of the fan blades. If there is any sign of blockage, remove the
blockage.
3
Main fan blades turn during
POR, then stop. Fan will not
run when trying to print.
Main fan
System board
Measure the voltage at J4-1 on the system board. The voltage should
measure approximately +2.5 V dc. If incorrect, replace the main fan.
See “Main fan removal” on page 4-56.
If that does not fix the problem, replace the system board. See
“System board and inner shield removal” on page 4-76.
4
Main fan blades do not turn Measure the voltage at J4-3. The voltage should measure +14.4 V dc
with the fan running full and approximately 7.0 V dc when running
half speed. If incorrect, replace the main fan. See “Main fan
removal” on page 4-56. If this does not fix the problem, replace the
system board. See “System board and inner shield removal” on
page 4-76.
FRU Action
1 Cartridge fan Check to make sure the cartridge is plugged into J5 on the system
board. If properly plugged in, go to step 2.
2
Cartridge fan Check for any signs of blockage in the fan. If any is found, remove
and retry the printer. If no problem is found, go to step 3.
3
Cartridge fan
System board
Replace the following FRUs in the order shown:
• Cartridge fan.
• System board. See “System board and inner shield removal”
on page 4-76.