The Usb Direct Interface Does Not Work (Error Code Ca, Etc); The Room Temperature Is High Or Low; Paper Is Not Fed From The Specified Tray - Brother 09055CDN Service Manual

3.13.3 The USB direct interface does not work (Error code CA, etc)

<User Check>
- Check if the data is supported device.
- Replace the USB flash memory and check if the interface works.
- Turn OFF and ON the power.
- Reduce the data in the USB flash memory.
Step
1
2
3

3.13.4 The room temperature is high or low

<User Check>
- Adjust the room temperature to 10 °C to 30 °C.
- Check if the exhaust opening is blocked.
Step
1
2
3

3.13.5 Paper is not fed from the specified tray

<User Check>
- Specify the tray correctly.
- Check the printer driver setting.
Step
1
2
Cause
Harness connection failure of
USB host relay PCB
USB host relay PCB failure
Main PCB failure
Cause
Internal temperature
thermistor failure
External temperature/
humidity sensor failure
Main PCB failure
Cause
Malfunction of firmware
Main PCB failure
Check the harness connection of the USB
host relay PCB ASSY and reconnect it.
Replace the USB host relay PCB ASSY.
Replace the main PCB ASSY.
Replace the Internal temperature thermistor.
Replace the high-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Upload the latest firmware.
Replace the main PCB ASSY.
2-140
Remedy
Remedy
Remedy
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