Confirm The Installation Status; Por Sequence - Lexmark W850n Service Manual

4024-110

Confirm the installation status

Be sure to check the following items before starting the troubleshooting procedures.
•
With the power cord unplugged from the wall outlet, check that the cord is free from breakage, short-circuit,
disconnected wire, or incorrect connection in the power cord.
•
The printer is properly grounded. Check the power cord ground terminal.
•
The printer is not installed at a place subjected to extreme temperature, extreme humidity or rapid changes
in temperature.
•
The printer is not installed close to water service, humidifier, heat generating unit, fire, in a very dusty
place, or a place exposed to air flow from the air conditioning system.
•
The printer is not installed in a place where volatile gas or inflammable gas is generated.
•
The printer is not installed in direct sun.
•
The printer is installed on a level and stable surface.
•
Media meets specifications and is installed properly.
•
Customer maintenance parts have been replaced at the specified intervals.
•
Check all attached options for proper attachment and electrical connection.
•
Refer to the User's Guide for proper installation.

POR sequence

The following is an example of the events that occur during the POR sequence for the base machine with no
media handling options installed.
1.
Power the machine on.
2.
The RIP card assembly cooling fan turns on.
3.
Operator panel LED becomes solid.
4.
While loading code, a series of dots scroll across the screen.
5.
The transport motor turns on.
6.
The fuser unit assembly lamps turn on.
7.
The fuser cooling fan turns on.
8.
The following is an example of the screen that displays after the code is loaded.
256 MB
256 MB = Amount of memory
9.
An animated stopwatch appears on the screen.
Ready appears on the screen.
10.
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Printer Service Manual
800 Mhz
800 Mhz = Processor speed