[Error Code] A mysterious SC 220 on MP4000

[Guest]

Hi folks!

Today I've got a SC220 on my Ricoh MP4000. The sm tells, that this is a "laser synchronizing detection error: start position LD0" and means "the laser synchronizing detection signal for the start position of the LDB is not output for two seconds after LDB unit turns on while the polygon motor is rotating normally".

What is the reason you think? I want to believe that kind of a "contaminated optics" or "defective LDB, sensor or board"... But no!

The sm has the following reasons: "The Copy Data Security card not installed" or "The Copy Data Security Module is installed, but it is not the correct type for the machine"

I was taken aback. What the f is that? I never used any kind of security stuff.
The only way is that my users have enabled the feature with a user tool (User Tools - System Settings - Administration Tool) without this module. But machine then must raise the SC165 and stop forever (detection of illegal removal of Copy Data Security Module). But where is the SC220 there? I can't see any logical link.
And the SC221 reasons are the same. Is this a kind of typo or somewhat?

Anyway today I'm heading for the maintanance and blow the laser unit, look for SC history. Please send your comments.

[Jomama46]

I would go with cleaning the Laser unit.

[TonerMunkeh]

x2. There's one of these things at a customer's that comes up with SC220 once every few months, it's the laser unit drowned in toner. That's even after a new PCU and toner hopper. What a chunk of shit the Alex is.

[tcs04]

Anything to do with the laser, it's worth checking the door (Laser safety circuit) switches.

[Alex Novo]

After several on-and-offs my users had elliminated this SC! Without any service. When I've arrived to the place, the machine worked perfectly. In SC History - several (4 exactly) SC 220* at a one day, but they all gone. Anyway, lasers and optics were clean, door switchers are also operatable. Alex-C1 is a real weird "masterpiece". I've changed it to another developer, replaced controller board, and always ready to get new glittering surprises. I've replaced hopper unit, because users crushed this green handle.

[Alex Novo]

This SC poped up again after several days. So I decided to disassemble the LD unit. And there, in the optical system have found some dried drips of fluid. They interfere with normal operation of the unit. After cleaning everything seems to be good.

[TonerMunkeh]

This SC poped up again after several days. So I decided to disassemble the LD unit. And there, in the optical system have found some dried drips of fluid. They interfere with normal operation of the unit. After cleaning everything seems to be good.

Dried liquid? Has someone tried cleaning the lenses and not gotten all the fluid off?

[Alex Novo]

Russians are so Russians, you know. Maybe someone have dropped a shot of vodka off the copier. Stains are formed with toner, but looks like a kind of a liquid was there, without any odor or color. I don't know what was that, but the SC problem definitely was caused by this spill.

[huberto233]

Re: A mysterious SC 220 on MP4000

Russians are so Russians, you know. Maybe someone have dropped a shot of vodka off the copier. Stains are formed with toner, but looks like a kind of a liquid was there, without any odor or color. I don't know what was that, but the SC problem definitely was caused by this spill.

Hi all,


Had anyone found another solution : tried , new laser , switches, ipu(bicu), iob,ribbon cable connecting both boards still SC 220 !!!!!


Any suggestion ?

Many thanks

[Eric1968]

Re: A mysterious SC 220 on MP4000

Did you do all the adjustments after replacement of the laser unit?

[huberto233]

Re: A mysterious SC 220 on MP4000

Did you do all the adjustments after replacement of the laser unit?

Only adjsutment you do on these machines is printing 2dot horizontal pattern and then manually adjusting laser diode there are not any other adjustments (like for instance on old Adonis's).

Unfortunately, i amnot even able to print that patter as SC is being triggered when you try to print.....


Regards

[teebee1234]

Re: A mysterious SC 220 on MP4000

First off, the reference to the DOSS card is a misprint in the manual (don't know why they haven't corrected it by now!). I had this problem last week on an MP5001 - actually going on for over a month being that it was intermittent. After replacing the LDU twice (with adjustments), replaced the door interlocks (though originals were clean as a whistle when I opened them), upgraded all the firmware and threw in some expletives for good measure, I still got called back several times for the same code. I found that in the SMC report, the SC220 was always accompanied by an SC240 that occurred first, but not displayed, only logged. Also found that the error almost always occurred during the 2nd copy job after I rebooted from the error. If I copied a set of 20 originals and placed them back in the feeder as a new job, as soon as the 2nd job started to print, the error would throw with the first sheet of the 2nd job always partially out of the tray. The fix ended up being replacement of the BICU board, but in your case another suspect could be the harness from the laser to the BICU. I did notice that the connector with the 4 white wires that came from the Laser was a loose fit where it plugged into the BICU . Just something to consider.

[rsyarcia]

Re: A mysterious SC 220 on MP4000

Encountered this problem with one of our machine(MP4000), we replaced the SYNC Detector Board and up to now the machine is working. just to share with you.

[vinli]

Re: A mysterious SC 220 on MP4000

maybe execute an engine clear will be able to solve the issue

[vargue]

Re: A mysterious SC 220 on MP4000

replace laser unit and tell him that is your fault and neglecting your machine causes this error customer like that i push him out and obligated him with high price to reserve on his machine and check out contaminated laser in my office