2-16 Service Manual
4022-XXX
Blank, Erratic, or Inoperative Operator Panel Service Check
The Operator Panel LCD is blank or displays garbled text, or the Operator Panel keypad
does not respond to user input.
5 AC POWER CORD REPLACEMENT
Replace the AC Power Cord.
Monitor printer operation.
Does the printer display erratic operation?
Go to step 6 Problem
solved
6 RIP CARD ASSEMBLY REPLACEMENT
Replace the RIP Card Assembly with a new one.
Monitor printer operation.
Does the printer display erratic operation?
Go to step 7 Problem
solved
7 ENGINE CARD ASSEMBLY REPLACEMENT
Replace the Engine Card Assembly.
Monitor printer operation.
Does the printer display erratic operation?
Go to step 8 Problem
solved
8 The following printer FRUs and areas are associated with this
specific problem. One or more of these FRUs or areas may
have failed partially or completely. If you cannot isolate this
problem using the steps in this Service Check, replace each
FRU or troubleshoot each area listed below, one at a time, until
you isolate and solve the problem.
• Toner Cartridge
• Wiring and connectors linking the FRUs
• Interlock switches and circuits
• LVPS or HVPS
• Computer Interface Cable
• Operator Panel
Step Actions and Questions Yes No
1 PRINTER STATUS TEST
Switch on printer power and wait 2 minutes for warm-up to
complete.
Use any application on the host computer to generate a few
prints.
Does the printer generate prints?
Go to step 2 Go to
“Inoperative
Printer
Service
Check” on
page 2-14.
2 OPERATOR PANEL TEST
Enter Diagnostic Mode.
Does the display indicate diagnostic mode?
Go to step 3 Replace the
Operator
Panel
Step Actions and Questions Yes No
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