Call Flow Procedure - Xerox Phaser 790 Service Manual

Call Flow Procedure

This procedure should be performed at every service call.
Procedure
The copier/printer is capable of making a copy/print to the Output Tray.
Y N
The copier/printer is capable of making a copy/print to the Top Tray.
Y N
The problem is in the paper path.
Y N
A Fault Code or a message is constantly displayed.
Y N
The Display is blank or garbled.
Y N
If one or more of the buttons or LEDs does not function, go to the
002-702 IOT Control Panel Button/LED RAP.
Go to the 002-701 Blank/Garbled IOT Display RAP.
If a fault code is displayed, go to the Fault Code RAP for the Fault Code that is
displayed.
If a message is displayed, go to the Fault Message/RAP Cross-Reference in
Section 2.
Check the paper path sensors for debris or damage. Check that paper is loaded in
all trays correctly.
Check the paper path mechanical drives and rolls for contamination, glazing, wear, dam-
age, or binding.
The copier is capable of making a copy/print to the Top Tray.
Y N
Check the paper path mechanical drives and rolls for contamination, glazing, wear, dam-
age, or binding.
A Fault Code or message is constantly displayed.
Y N
The problem is Image Quality.
Y N
The problem is in the ADF.
Y N
The problem is in the Scanner.
Y N
The problem is in the Sorter.
Y N
The problem is noise.
Y N
The problem is intermittent. Go to the BSD and perform a resis-
tance check of the wires in question. Gently pull on the wires to
ensure that they are properly connected.
A B C D E F
Service Call Procedures
Call Flow Procedure
A B C D E F
Go to the area where the noise is being generated and troubleshoot
that area.
If a sorter fault code is present, go to the RAP associated with that fault
code.
If a sorter message is present, go to the Section 2, Fault Message/RAP
Cross-Reference Table.
Check for mechanical binding.
Check the ADF Document Sensors for debris or damage.
Check that the document mechanical drives and feed rolls are free from wear, dam-
age, contamination, and binding.
Check the paper path sensors for debris or damage. Check that paper is loaded in all
trays correctly.
Check the paper path mechanical drives and rolls for contamination, glazing, wear, dam-
age, or binding.
Go to the IQ1 Image Quality Entry RAP.
If a fault code is displayed, go to the Fault Code RAP for the Fault Code that is displayed.
If a message is displayed, go to the Fault Message/RAP Cross-Reference in Section 2.
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Initial Issue
Phaser 790/DocuColor 2006