Troubleshooting For Control Panel Problems; Nothing Is Displayed On The Lcd; Unable To Perform Panel Operation; Troubleshooting For Toner Cartridge And Drum Unit Problems - Ricoh SP 230DNw Service Manual

4.6 Troubleshooting for Control Panel Problems

4.6.1 Nothing is displayed on the LCD

<User Check>
• Turn the power switch OFF and then back ON again.
• Unplug the AC cord and then plug it again.
Step
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4.6.2 Unable to perform panel operation

<User Check>
• Turn the power switch OFF and then back ON again.
Step
1
2
3
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4.7 Troubleshooting for Toner Cartridge and Drum Unit
Problems

4.7.1 New toner not detected

<User Check>
• Be sure to set a new toner cartridge.
Cause
Connection failure of the
panel relay flat cable
Connection failure of the low-
voltage power supply PCB
harness
AC cord failure
Connection failure of the LCD
relay flat cable
Panel relay PCB failure
LCD failure
Low-voltage power supply
PCB failure
Main PCB failure
Cause
Connection failure of the low-
voltage power supply PCB
harness
Connection failure of the LCD flat
cable
Connection failure of the panel
flat cable
Panel PCB failure
Low-voltage power supply PCB
failure
Main PCB failure
Reconnect the panel relay flat cable.
Reconnect the low-voltage power supply
PCB harness.
Replace the AC cord.
Reconnect the LCD relay flat cable.
Replace the panel relay PCB ASSY.
Replace the LCD panel ASSY.
Replace the low-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Reconnect the low-voltage power supply
PCB harness.
Reconnect the LCD flat cable.
Reconnect the panel flat cable.
Replace the panel PCB ASSY.
Replace the low-voltage power supply
PCB ASSY.
Replace the main PCB ASSY.
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Remedy
Remedy
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