Diagnostic Information; Start; Error Indication Table - Lexmark 4227 - Forms Printer B/W Dot-matrix Service Manual

4227-300

2. Diagnostic information

Start

Make a quick visual check for defects (loose or broken parts,
unplugged connectors, or paper jams).
If there is no power after turning the printer on, go to the
failure service check" on page
If an error indicator appears, go to the
page 2-1 and take the indicated action.
Run the "Print Test" on page 3-5
3-5 for details of error indication information. If no error indication
appears, refer to

Error indication table

The following table describes the service check entries for the
printer error indication codes.
When an error indication changes after you have entered a service
check, you have an intermittent problem. If this occurs, leave the
service check and go to
Display Indication
631 Machine Check
Display RAM Error
632 Machine Check
System RAM Error
2-25.
"Symptom tables" on page
"Symptom tables" on page
Description/Action
Display RAM Read/Write Error. This error
is detected only during POST. Replace the
operator panel.
System RAM Read/Write Error.
Replace the main logic board and
perform the
adjustment" on page 4-3
"Printhead-to-platen gap adjustment"
on page 4-2
"Error indication table" on
and refer to the
2-3.
"Bidirectional print
.
Diagnostic information
"Power
"Error log" on page
2-3.
. Check the
2-1