Frontier LP7700 - Symptom Due to the Connection Failure of Wiring (Processor)

Diagnosis appendix for the failures: Symptom due to the connection failure of wiring
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4. Troubleshooting
4203
4203
Symptom due to the connection failure of wiring (processor)
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! Processor control PCB
Reference
☞Processor control PCB ☞Processor I/O PCB 1 ☞Processor I/O PCB 2
☞Processor relay PCB ☞Processor power supply 1 (PS1) ☞ Processor power supply 2 (PS2)
☞Drive motor driver PCB
*1
☞Circuit breaker (NFB1) ☞ Earth leakage circuit breaker (NFB2)
☞Earth leakage circuit breaker (NFB3) ☞ Earth leakage circuit breaker (NFB4) ☞ Checking condition of wiring connection
failure
Connector No. Symptom
J/P510 Connects to the processor I/O
PCB 1.
The following attention message is shown.
• No.00500-00000 Add water to the Refilling Water Tank. occurs.
• No.00502-00000 Add replenishment solution to the replenishment tank. occurs.
• No.00503-00000 Empty the Effluent Tank. occurs.
• No.00515-00000 Set the Rack Stopper. occurs.
The following error message is shown.
• No.05508-00000 The processing solution level is too low. occurs.
• No.05532-00000 The Processing Solution Safety Thermostat has activated. occurs.
• No.05533-00000 The Dryer Safety Thermostat has activated. occurs.
J/P511 Connects to the processor
relay PCB.
The following attention message is shown.
• No.00506-00000 Close the Dryer Cover. occurs.
• No.00507-00000 Close the Processor Top Cover. occurs.
The following error message is shown.
• No.05508-00000 The processing solution level is too low. occurs.
• No.05532-00000 The Processing Solution Safety Thermostat has activated. occurs.
• No.05533-00000 The Dryer Safety Thermostat has activated. occurs.
J/P512 Unused -
J/P513 Connects to the print sensors
(left, center, and right) and
dryer lane select sensor
When prints are processed, No.05535-00000 Paper has jammed in the processor section. is
shown.
J/P514 Power supply input from
processor power supply 1
(VCC5V) and processor
power supply 2 (+24V)
No.06901-00008 ARCNET communication error. Processor occurs.
J/P515 Connects to the drive motor.
(QSS-
3701/3702/3703/LP7500/LP
7600)
No.05550-00000 Drive Motor has stopped. occurs.
Connects to the drive motor
driver PCB.
(QSS-
3704/3705/LP7700/LP7900)
No.05550-00000 Drive Motor has stopped. occurs.
J/P516 Connects to the temperature
sensor (CD, BF, STB) and
dryer thermosensor
The following error message is shown.
• No.05519-00000 Thermosensor error. CD occurs.
• No.05520-00000 Thermosensor error. BF occurs.
• No.05521-00000 Thermosensor error.STB occurs.
• No.05522-00000 Dryer Thermosensor error. occurs.
J/P517 Connects to the printer
control PCB (ARCNET)
No.06901-00521 ARCNET communication error. Printer Processor LASER occurs.
J/P518 Connects to the printer
control PCB (ARCNET)
No.06901-00008 ARCNET communication error. Processor occurs.
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