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2-14 Service Manual
4044-XXX
Dead Machine Service Check
Note: Check the AC line voltage. The voltage should be within the
following limits:
100 V ac - 127 V ac for the low voltage model printer
200 V ac - 240 V ac for the high voltage model printer
Model E312
HVPS
Measure the voltages at CN2 of the
HVPS. CN2-3 measures +5 V dc
and CN2-4 measures +24 V dc. If
the correct voltage is present, check
the continuity between the following
connector locations:
CN2-3 - CN1-17
CN2-3 - CN1-19
CN2-4 - CN1-2
CN2-4 - CN1-4
If any location does not measure
continuity, replace the HVPS.
Model E312
HVPS to Engine Board Cable
Replace the cable if it does not
measure continuity.
E312
Engine Board
Go to the “Engine Board (model
E312)” on page -9. Measure the
voltages on CN11. If any voltages
are incorrect, replace the engine
board.
FRU Action
Model E310 & E312
LVPS Fuse
Check the fuse on the LVPS for
continuity. Replace with the
appropriate fuse if blown. If a fuse
blows again after being replaced,
install a new fuse and go to “Engine/
LVPS Board (model E310)” on
page 5-4 and check the engine/
LVPS board output.
FRU Action