Introduction - Xerox 8850 Service Manual

Introduction

The Service Call Procedures are designed to assist the Service Representative to identify
Printer faults, perform the necessary corrective action, and perform the correct Maintenance
Procedures. The Service Call Procedures are designed to be used with the Printer Service
Manual and is the entry level for all service calls.
• Call Flow Procedure - The Call Flow Procedure is a list of activities to be performed on
each service call.
• Initial Actions - This procedure is designed to identify and classify the Printer problem and
to refer you to the appropriate RAP in order to repair the problem. When the problem has
been repaired, perform the System Checkout / Final Action.
• Print Defect Isolation Procedure - This procedure directs the CSE to make test prints, per-
form test procedures to identify the cause of a print defect.
• Workstation Checkout Procedure - This procedure is designed to ensure that the Printer
is correctly set up to run and communicate with other elements. It consists of a series of
connection checks, configuration test prints, PING tests, and tests made from a laptop
PC.
• Status Code Entry Chart - This table contains a list of Status Codes, their related compo-
nents, the corresponding RAP (Repair Analysis Procedure), BSD (Block Schematic Dia-
gram), Component Code and Parts List reference. The chart is designed to direct you to
the appropriate Clearance Procedure. When the Status Code problem has been repaired,
refer to the Call Flow Diagram and continue the Service Call.
• Message Display Entry Chart - This table contains a list of messages that may be gener-
ated by the Printer, their cause, clearance procedures, and BSD references.
• Maintenance Procedures - This table contains a list of messages that may be generated
by the Printer, their cause, clearance procedures, and BSD references.
• Callback - This service is performed when the CSE has been called back to correct a
problem that was thought to have been recently corrected. The Callback is a short proce-
dure performed on the subsystem that caused the original service call.
• System Checkout - The purpose of this procedure is to record the media feet count and
to make a record in the machine log book of the service activities that were performed.
The Final Action is designed to ensure that the print is transported correctly and to ensure
that image quality is within specification.
8850/ 510DP
03/2003
1-3
Service Call Procedures
Introduction