How To Use Dcu; Dcu Setup; Code; Troubleshooting - Samsung ML-1210 Service Manual

Troubleshooting

4-1 How to use DCU

4-1-1 DCU Setup

You can examine the malfunction of the printer. To perform DCU, open the front discharge cover and leave the connect
the harness wire(10 pin/4 pin) to the CN10(4 pin) of the Main control board.

4-1-2 Code

Connect DCU to the printer and turn the power on. It show 7 LED on the panel and each code tells the function of the
printer.
Normal Code
While printing or warming up, it indicate the position of the paper
61 Warm up
00-05 Ready(kind of paper)
20 Print Start
30 Feed Sensor On
40 Feed Sensor off
50 Paper Out
69 Sleep Mode
Error Code
When detecting the malfunction, the printing is stopped to indicate error code.
60, 62, 68 Fuser Error
64 Cover Open
70 No Paper
71 Paper Jam 0
72 Paper Jam 1
73 Paper Jam 2
95 LSU Not Ready
4-2
The printer is on, the cover is open or close.
The printer is ready, the paper is detected when the first paper is printed.
00: Legal , 01: Letter , 02: A4 , 03: EXEC , 04: B5 , 05: Folio
The engine controller received the print order from the video controller.
The paper is passing out of the Feed Sensor.
The paper has passed out of the Feed Sensor.
The paper has passed out of Exit Sensor.
The fuser power turned off to minimize the power consumption.
The error in the fuser occurred. There is a short circuit in the thermistor and the
thermostat while printing, Low Temperature Error occurs.
• 60: Open Fuser Error
• 62: Low Heat Error
• 68: Over Heat Error
The Printer Cover is open or Toner Cartridge not installed.
No paper in the paper cassette.
The front part of paper is jammed between pickup unit and Feed sensor.
The front part of paper is jammed between the Discharge sensor and Feed sensor.
The front part of paper is jammed just after passing through the discharge sensor.
LSU Scanner Motor not ready or Hsync signal not output.
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