124
UF-5500 / 4500
11 Troubleshooting Guide
11.1. Starting Troubleshooting
11.1.1. Outline
Troubleshooting is for recovering quality and reliability by determining the broken component and replacing, adjusting or cleaning it
as required. First, determine the problem then decide the troubleshooting method. If you have difficulty finding the broken part,
determine which board is broken. (For example: the Main PCB, Sensor PCB, etc.) The claim tag from a customer or dealer may use
different expressions for the same problem, as they are not a technician or engineer. Using your experience, test the problem area
corresponding to the claim. Also, returns from a customer or dealer often have a claim tag. For these cases as well, you need to
determine the problem. Difficult problems may be hard to determine, so repeated testing is necessary.
Determine the symptom and the troubleshooting method.
CROSS REFERENCE:
Information Codes (INFO. CODES)
Simplified Troubleshooting Guide
Plug in the AC cord.
Look at the LCD.
AC
START
Power on
If the INFO.CODE are displayed,
correct them according to
each error item.
(Refer to Imformation Codes.
)
Good!
Example of LCD display
FEB-25 15:31
15%
LCD has no reaction
or improper display
Check the 3-digit INFO.CODE
on the display
1
Does the original document
feed through correctly?
Does the recording paper
exit the unit?
Troubleshoot printed
copy quality problems
(Refer to Simplefied
Troubleshooting Guide.
)
Troubleshoot the Document
Feeder
(Refer to Simplefied
Troubleshooting Guide.)
Check for recording
paper path problems.
Does the unit produce
normal copies?
Troubleshoot communication
problems (transmission,
reception, dialing, polling,
information codes, or
diagnostic codes.)
(Refer to Communications.
)
Yes
Yes
No
No
Yes
No
OK
*1) Imformation Codes
*2) Simplefied Troubleshooting Guide
*3) Communications
Содержание UF-5500
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