Error code 75

Cooling Down

The machine is cooling down inside for protection.

The machine indicates “Cooling Down” in one of the conditions below.

(1)The temperature inside the machine is too high.

(2)Both ends of the heat roller are at different temperatures.

(3)The paper media is replaced.

Error code 99

Size Error DX

Press Cancel. Specify the correct paper and load the same size paper as the Printer driver setting.

Specified paper size is not supported for duplex printing (DX).

User Check

-Check if the selected paper is supported for duplex printing.

-Check the size setting of the tray to feed paper.

Error code 9B (* This error can be found out only in “Maintenance mode 82”.)

Print Unable 9B

Request on developing bias voltage adjustment

User Check

-The machine starts implementing the developing bias voltage adjustment automatically when it enters the standby status.

Error code C7

Out of Memory

Add more Memory.

Insufficient DIMM memory

User Check

- Install additional DIMM memory.

Error code C9

DIMM Error

Make sure that the DIMM is inserted correctly.

Defective DIMM is installed.

User Check

-Check if the DIMM is installed correctly.

-Replace the DIMM with a new one.

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