Call to service - C6400 - Kyocera Mita KM-2550 All-In-One Laser Printer

something to do with the printer not recognizing the power is on
and plugged in to the printer
could try
unplug the ac from the wall ..start again

if no better problem is internal ..call for service technician

Hi
I found this explanation of your error, although my understanding of it is not entirely clear.
Code: C6400
Description: Zero-cross signal error
Interrupt of the zero-cross signal does not occur more than 1 s.
Causes: Poor contact in the connector terminals.
Defective power source PWB.
Defective engine PWB
You can find this here:
Error Codes Kyocera Mita TASKalfa 221 Code C6400
and also by changing the drop down menus along the top of the page you can view other errors for your machine and for other models and makes. You can also use the link to get a Service Manual for your machine.
Hope this is helpful, if so would you please register that with Fixya
Cheers

model?

Have to reset fuser in service mode.

C6400 is a fixing unit error. You may need a new fixing unit but most of the time it can be reset in maintenance mode.

Use the following steps to enter the maintence mode, once there follow the steps for maintence mode 163 (reset fuser error). Do not do anything else in the maintenance mode area because you could damage your machine.


Press the system menu/counter key.

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

C6400 is a fixing unit error. You may need a new fixing unit but most of the time it can be reset in maintenance mode.

Use the following steps to enter the maintence mode, once there follow the steps for maintence mode 163 (reset fuser error). Do not do anything else in the maintenance mode area because you could damage your machine

Press the system menu/counter key.

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

it is the problem fuser unite heater lamp or thermostater

A Copystar or Kyocera service technician must reset the fuser memory.

Defective power supply board. or Defective engine board

i have problem in my copy machin kyocera fs-1118  this problem is erreur c6400