What is code c6400 in sharp copier and how do i reset it?

Select Service setting using the up/down cursor keys.

While pressing the start key and the # key, press the enter key.

Select Maintenance mode using the up/down cursor keys.

Press the enter key.

Enter the maintenance item number (163) using the up/down keys.

Press the enter key.

1. Press the enter key. A selection item appears.

2. Select Execute using the up/down cursor keys.

3. Press the enter key. The fusing problem data is initialized. (Four service calls, namely C6000, C6020, C6050, and C6400 are reset.)

Completion

Press the back key. The indication for selecting a maintenance item No. appears.

Turning power switch off and back on

Resetting the fusing problem data

Description

Resets the detection of a service call code indicating a problem in the fusing section.

When a service call concerning the fusing section occurs, turn the power switch off and open the front cover.

Then, turn the power switch on and press the system menu/counter key to enter the maintenance mode.

Purpose

To prevent accidents due to an abnormally high fusing temperature.

Method

1. Press the enter key. A selection item appears.

2. Select Execute using the up/down cursor keys.

3. Press the enter key. The fusing problem data is initialized. (Four service calls, namely C6000, C6020,

C6050, and C6400 are reset.)

Completion
Press the back key. The indication for selecting a maintenance item No. appears.

Turning power switch off and back on.

I hope this is helpful,
Shawn