Troubleshooting - Samsung CLX-9350ND Service Manual

7. Troubleshooting

7.1 Procedure for checking
This chapter describes how to troubleshooting the pr
approaches:
■ A step-by-step verification procedure that system
printer are properly functioning until a problem is printer are properly functioning until a problem is
■ An error code detail table shows the error codes,
7.1.1 System power-up sequence y p
The following lists the chain of events that occur when
You can follow this list as one means of determining w
When the power switch is turned on, these events occ
. The engine control board checks its RAM.
. All the engine fans are turned on to ensure they wor
. The fuser heater (a halogen lamp) is activated to he Th f h ( h l
. The position of each toner cartridge is checked to e
. A print engine checks to see that the imaging unit, t
installed.
. The engine motors are rotated to ensure that their ro
. The transparency film sensor and the image density
they each emit.
. A check is made to determine whether any paper is
. The print engine checks the level of toner in each to
. After the fuser reaches its idle temperature, a color
. The printer is placed on line in its READY state.
. The print engine is initialized. If the startup page fea
with the printer, the printer prints a startup page.
Service Manual
CLX-9250/9350 series
7. Troubles shooting
rinter. Troubleshooting is explained using two
matically confirms that particular components of the
p q
n you turn on the printer.
whether the printer is operating correctly.
cur:
l ) i i d h eat up the heated roller.
y sensors are "tuned" for the amount of infrared light
oner cartridge.
ature has not been disabled and no error occurred
7- -1
symptoms
found. found
, their possible causes, and troubleshooting.
rk properly.
h h d ll
nsure they are in their parked positions.
he paper feeder and the transfer unit are
otation sensors are detected.
jammed in the printer.
correction cycle is performed.
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