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Chapter 3 Troubleshooting
3. 4. 4. 6 DC305 Component Check (IO Check)
Description
Performs operation checks on the UI screen and buttons on the Control Panel.
Procedure
1. Select the "IO Check" tab on the Service Mode screen.
2. Select [
DC305
] on the IO Check screen.
3. The UI Component Check Screen is displayed.
4. Select [Execute].
5. Use the UI and the Control Panel buttons of the Main Processor to execute the 3 tests as
described below.
• LED Check: Lights up all the LEDs at the same time as displaying the DC305 Touch
Screen Test screen. All LEDs will turn Off when [Stop] is selected.
• LCD Check: Move your finger on the DC305 Touch Screen Test screen, and the area
being touched (80 long X 30 short Matrix) will be displayed in reverse video.
• Beep Check: The selected tone will be emitted every time the Control Panel buttons
are pressed. This Check can be also performed by using the Start/Stop buttons in the
same way.
6. Select [Stop] on the UI Component Check screen.
7. The DC305 Touch Screen Test screen on the Main Processor UI is closed, and the message
"Stopped" is displayed at the bottom left of the UI Component Check screen.
8. Select [Close] to return to the UI screen after checking of the UI Component Check has
completed.
Summary of Contents for DP-C321
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Page 5: ...Chapter 1 General ...
Page 22: ...1 16 Chapter 1 General 1 3 Type of Paper ...
Page 23: ...1 17 Chapter 1 General ...
Page 24: ...Chapter 2 Maintenance ...
Page 63: ...Chapter 3 Troubleshooting ...
Page 118: ...3 44 Chapter 3 Troubleshooting I F PWB PL9 1 MCU PWB PL13 1 ...
Page 445: ...Chapter 4 Parts List ...
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