
TROUBLESHOOTING
4.1.2 Code
Connect DCU to the printer and turn the power on. It show 7 Segment FND on the panel and each code tells the function of the printer.
1) Normal Code
While printing or warming up, it indicate the position of the paper
Code | State | Description | 
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61  | Warm up  | The printer is on, the cover is open or close.  | 
00~05  | Ready(kind of paper)  | The printer is ready, the paper is detected when the first paper is printed.  | 
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  | 00: Legal ,01: Letter ,02: A4 ,03: EXEC ,04: B5 ,05: Folio, 06: A5/A6  | 
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20, 21, 22  | Print Start  | The engine controller received the print order from the video controller.  | 
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  | 20: 1st, 21: MP, 22: SCF  | 
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30  | Feed Sensor On  | The paper is passing out of the Feed Sensor.  | 
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40  | Feed Sensor off  | The paper has passed out of the Feed Sensor.  | 
50  | Paper Out  | The paper has passed out of Exit Sensor.  | 
69  | Sleep Mode  | The fuser power turned off to minimize the power consumption.  | 
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2) Error Code
When detecting the malfunction, the printing is stopped to indicate error code.
Code  | State  | Description  | 
60, 62, 68  | Fuser Error  | The error in the fuser occurred. There is a short circuit in the thermistor  | 
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  | and the thermostat while printing, Low Temperature Error occurs.  | 
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  | • 60: Open Fuser Error  | 
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  | • 62: Low Heat Error  | 
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  | • 68: Over Heat Error  | 
64  | Cover Open  | The Printer Cover is open.  | 
65  | CRU Error  | The Toner Cartridge not installed,  | 
70  | No Paper  | No paper in the paper cassette.  | 
71Paper Jam 0 The front part of paper is jammed between pickup unit and Feed sensor.
72Paper Jam 1 The front part of paper is jammed between the Discharge sensor and Feed sensor.
73Paper Jam 2 The front part of paper is jammed just after passing through the discharge sensor.
76  | Out Bin Full  | The Out bin is filled with paper.  | 
95  | LSU Not Ready  | LSU Scanner Motor not ready or Hsync signal not output.  | 
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