Page: 148
Service Guide ML590/ML591
Chapter 4 Failure & Repair Analysis
4.4.03 START HERE Flowchart
START
Power ON the unit.
Does the printer initialize?
No
Is the ALARM Lamp Blinking?
No
Refer to RAP 01
Yes
Refer to Section 4.6 of the Service Handbook
.
Yes
Load the printer with paper.
Does the paper load without jamming?
No
Refer to Rap 04.
Yes
Perform the Rolling ASCII test.
Refer to Section 3 of the Service Handbook.
Is the output satisfactory?
No
Refer to RAP 06.
Yes
Are all operator panel switches operating properly?
No
Refer to RAP 09.
Yes
Has the problem been resolved?
Yes
End of procedure.
No
Does the parallel or serial interface port receive data from the host PC
properly?
Yes
End of procedure.
No
Which port is not receiving data?
Parallel
Refer to RAP 10.
Serial
Refer to RAP 11.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
