Confirm The Installation Status; Por (Power-On Reset) Sequence - Lexmark W840 Service Manual

4024-XXX

Confirm the installation status

Be sure to check the following items before starting the troubleshooting procedures.
•
The power 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 or extreme humidity or rapid
changes in temperature.
•
The printer is not installed close to water service, humidifier, heat generating unit, or 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 stout 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 (Power-On Reset) 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.
256MB
256MB = Amount of Memory
9.
An animated stopwatch appears on the screen.
Ready appears on the screen.
10.
2-2
Options Service Manual
625Mhz
625Mhz = Processor Speed