Kyocera KM-4050 C6400 error codes

[copierfixer]

Hey Gang, I have a 4050 that keeps throwing C6400 error codes book says:

C6400 Zero-cross signal error

While fuser heater ON/OFF control is
performed, the zero-cross signal is not
input within 3 s.

Defective PWB. Replace the engine PWB or power source

PWB and check for correct operation.

Is there really a need to replace the board or has anyone out there found other fixes

Thanks
RB

[ebm]

I would try firmware update and have a fuser unit available to replace. We have replaced a number of fusers and returned them for warranty. PWB replacement last option.

[blackcat4866]

I'll get the soap....

The zero cross error tells you that there are neutral to ground transients. In plain language, dirty AC power.

Copiers are for the most part ground switching devices. If you don't have a good ground there is no guarantee the the various electronic components will come on when desired.

Most of the equipment that I've worked on allow for 0.5vac or less neutral to ground. The VOM is not the best possible tool for documenting this kind of problem. After all, how long are you going to stand there and watch it? A Power Quality Analyzer records all events preferably over 48 hours. The better ones generate event reports.

It can be very hard to convince a customer that they have a power issue. Electricity is a difficult enough concept for most people, how could it be dirty? Can't we just wash it? Without the report you don't have a leg to stand on. =^..^=

[denisr]

C4200 Error On Kyocera mita

C4200 Error On Kyocera mita error message when systems start

p/s help
thanks
dnis

[lanierboy]

kyocera have changed the dimensions of the plastic housing that holds the fuser connector in the machine, we change this to the new type and no more errors.

problem is old type arc's

[10871087]

C4200 Error On Kyocera mita error message when systems start

p/s help
thanks
dnis

What model? This is a laser code on most machines, you should ask your question in a new thread for a better response.

[techman]

c6400

the replacment housing for the fuser connector is on kmaconnect in one of the latest tech bulletins it gives you the part numbers and install instructions

[vinnyb]

I found the best fix for this code
sim 163
reset the fuser code and you will have no problems.
You can not troubleshoot a sc-6400.
don't rpl. pwb's just reset the fuser code with sim 163

[techman]

sorry i asumed u had already tried resetting the fuser using 163 thats why i asked you to try the bracket. if it keeps comming back i can give u the part number

[Kyocop]

Re: Kyocera KM-4050 C6400 error codes

Hi. I am actually working on a Copystar CS-1500 that came up with the C6400 code after a power outtage. According to the manual.... you can start the sim 163 code by entering maintenance mode (press stop reset start and left copy exposure key at the same time) but I am unable to enter maintenance mode.

Code just keeps on blinking and no way to bypass it. What am I doing wrong?

Thanks!