Xerox DocuPrint C55 Service Manual page 44

OF1 DEAD PRINTER RAP
This RAP is used when the Printer is dead.
There is no display, no Control Panel LEDs
are on, and no motors or fans are heard when
the printer is switched on.
NOTE: A description of the C55 and NC60
IOT and ESS boot routines can be found in
Section 6 of this manual. Refer to the Section
6 Table of Contents.
INITIAL ACTION
Remove the power cord and check for AC
power at the wall outlet. If there is no power at
the wall outlet, ask the customer to call an
electrician to restore the AC power.
If power is available at the wall outlet,
disconnect the power cord from the printer.
Plug the cord into the wall and check for AC
power at the printer end of the power cord. If
power is available at the wall outlet but not
available at the printer end, replace the power
cord.
PROCEDURE
WARNING
Disconnect all network, and workstation
inputs to the printer.
A
OTHER FAULTS RAP' s
OF1
A
Switch the printer off wait 10 seconds and
switch the printer on while listening to the IOT
and observing the Message Display.
The IOT runs when the printer is switched
on.
Y N
Set up the meter to measure +5 VDC.
Measure between CN108-1
CN108-2 (− ).
The meter indicates +5 VDC.
Y N
Go to OF1.1 + 5 VDC RAP
Set up the meter to measure +5 VDC.
Measure between CN310-11 (+) and
CN310-10 (− ).
The meter indicates +5 VDC.
Y N
Replace the Connector PWB.
Go to OF2 CONTROL PANEL RAP.
Switch the printer off wait 10 seconds and
switch the power on while observing the LEDs
on the ESS PWB.
The ESS appears to boot normally and the
Control Panel is blank.
Y N
Check CN104, the ESS to IOT connector.
If OK, go to OF6A (C55/C55mp) or OF6B
[NC60].
Go to OF2 CONTROL PANEL RAP
2/99
2-30
(+) and
DocuPrint C55/C55mp/[NC60]