How Do I Access Techrep / Service Mode?

[Guest]

I need to turn off (disable) the fax board option on our C450. However I cannot gain access to the service mode. I hold the utility button down while I power up the machine and reset the error code but the error code returns the next time time a start the machine.

Below are entires from the service manual. Unfortunatly I cannot gain access to the service mode using item #4 "Press STOP, 0, 0, STOP, 0, 1" because the C-B003 or C-B051 Fax Board error codes freeze the entire machine at startup and won't accept any additional commands.

Can anyone please tell me how to turn off the fax board option so we can use our machine?

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How to access Service Mode.
Solution
To access the Service Mode, please perform the following:
1. Turn the main power switch OFF.
2. Turn the main power switch ON while holding the 'utility' button.
3. On the LCD screen push the trouble reset button.
4. Press STOP, 0, 0, STOP, 0, 1.
5. Enter Password: 12345678 and Click on END.

Unable to access techrep mode.
Solution
To access the techrep mode please perform the following:
1. Turn the main power switch off.
2. Turn the main power switch on while holding the "utility" button.
3. On the LCD screen push the trouble reset button.
4. Press STOP,0,0,STOP,0,1.
5. On the password screen enter 92729272.

How to perform trouble reset (to reset a trouble code).
Solution
To perform trouble reset, do the following:
1. Turn OFF Main Power Switch.
2. Turn Main Power Switch ON while pressing the Utility/Counter key.
3. Touch [Trouble Reset].
4. Check to make sure [OK] is on the display.
5. Turn OFF the Main Power Switch and wait 10 seconds, then power the unit ON.

[deep]

The Fax Board just liked any PnP device. It's simply unplug it and the error message will be gone.

[ebm]

The proper way to access the tech rep mode is to call a qualified technician. I agree with "pepper38 cnd" who recommended in your other post to call a technician. The price to have a qualified technician look the machine over is well worth it if you only paid $1,500 to buy it. Of course, now you probably regret not "test driving" it before you paid for it. But, $1,500 is a good price and hard to pass up for this model. Spend a little more money and get some qualified help before this problem escalates to the point of no return and you're left with a $1,500 paper weight.

[Tampa Bay Graphics]

Thanks for the advice.

I contacted four service companies that all charge between $135 and $200 to visit our shop. They said they could, based on the error code, fix the machine within 1 minute.

They simple access the service panel and turn off the fax board.

Although we got a good price on the printer, it's a hard decision to pay $135 when, if lucky, someone will simply tell us what buttons to push to turn off the fax board.

[cobiray]

If they are only going to be there for a minute and you are paying for the first hour, you might want to have them give the machine a once over. If I'm going to a billable call I'll at least wipe the machine down, clean the rollers etc.

[wagon]

^^^^^^ x2. Don't be a tightwad.

[nmfaxman]

You would be out $130.00, but you would have an operational machine and a profesional diagnosis as to how good a deal you got and you wouldn't be wasting time waiting for an answer you may not get.
Penny wise, dollar stupid.

[Ctl-Alt-Del]

If they are only going to be there for a minute and you are paying for the first hour, you might want to have them give the machine a once over. If I'm going to a billable call I'll at least wipe the machine down, clean the rollers etc.

Agreed! You could use a real tech, its worth the money.

[Tonerbomb]

And that real tech is going to fix your machine get you back online and you'll start making money with the machine again.... what's wrong with this picture?????
It takes money to make money!! Spend it, make it!!!!!!

[fixthecopier]

If you got the machine for such a good deal and have not been able to use it, there may be other problems you have not seen yet. When you get the fax code cleared, you may be back here trying to clear image quality problems or other codes. You may not think we are playing nice but the truth is you are getting good advice. Most of us have delt with the customer who tries to fix it themselves and causes more damage, like reseating a fax board with the machine plugged in. There are parts of your machine that will cost $500 to $1500 to replace if you damage. Those 4 drums are around $525 each and the transfer belt is $600, and if you blow a board you will be singing the blues. If your problem were that simple, you would be running by now. Call a tech!

[paul bristol uk]

Correct me if I am wrong but it says at the top of the page
AN ONLINE COMMUNITY FOR COPIER,PRINTER,AND FAX TECHNICIANS

So what are the general public and end users doing cluttering up the Forums?

Is it possible to have clarification of this?

[bgbas]

Amen brother, this sight has lost a lot of its appeal for the reasons you mention.I don't visit it as often as I used to.

[Tampa Bay Graphics]

I have received many suggestions from qualifed techs on this board. It is the same advice that I have found in the service manual.

Once I get to the correct screen I hit "stop 0 0 stop 0 1" to acces the contro panel but nothing happens.

Had a tech visit today and he went through the same series of button pushing without success. (Thankfully he didn't charge us for the service call).

He was very impressed by the condition of the machine as it's practically brand new however he was dumb founded as to why he couldn't access the control panel.

Is there another way to access the control panel on the C450 besides the following:

1) Turn Main Power On
2) Hit The Utility Button
3) Press Details Bottom
4) Hit "stop 0 0 stop 0 1 (quickly 10 seconds or less)

This does not work on our C450.

So my question is:

Is there an alternative method for a qualified Konica Minolta Technician to access the control panel?

[fixthecopier]

If your machine is locked up as you describe, then the problem is most likely in the firmware of the machine. You could have bad nvram. If this is the case then you will have to have a Konica Minolta tech , because only they will be able to acess the company site to get firmware upgrades. Sometimes connections and boards can be reseated to fix odd problems, we just don't know. I have had a machine lock up like yours is. To unlock it I had to bleed down the battery on the nvram board and reflash it. The machine worked for 2 weeks and then locked into an abort code that required me to change the nvram. Most techs knew when they saw you could not get into tech mode by pushing the buttons that it could go this way. The tech you had look at the machine could not have been a KM tech or he would have told you all of this. Call A KONICA MINOLTA TECH. If the boards are bad you may pay up to another grand to make copies. Good Luck!

[pepper38_cnd]

Mr Tampa Bay

You now have a $1500 Boat Anchor which is not not likely to get any better without a few hours work and some very expensive parts. Having said that, you have nothing to loose in trying this.

With the error on the display, hit the following keys in succession:

stop 0 7 1 3 9 * then follow screen instruction.
(this is supposed to reset error locks in NVRAM)

if you get a response, do this 29 more times, then try tech rep mode to disable fax.

If all else fails see if you can sell it to a dealer as a parts machine you may get $300 bucks for it if your lucky.