[Error Code] sc 142

[babu]

Hi guys I have a ricoh mp6002 giving me a code after start up sc142, I have replaced all the boards

1. Image scanning Board
2. PCB: SIOB
3. PCB: BCU
4. PCB:CNB :Assy
5. Power supply unit: main
6. PCB:PFB:Three way
7. Exposure lamp
8. Lamp stablizer
9. Scanner motor

Then again sc142, Now what should I do?

[Phil B.]

Re: sc 142

Hi guys I have a ricoh mp6002 giving me a code after start up sc142, I have replaced all the boards

1. Image scanning Board
2. PCB: SIOB
3. PCB: BCU
4. PCB:CNB :Assy
5. Power supply unit: main
6. PCB:PFB:Three way
7. Exposure lamp
8. Lamp stablizer
9. Scanner motor

Then again sc142, Now what should I do?

sounds like you really don't know what part of the machine is kicking the SC code. Did you look it up in the service manual?
You are taking the "shotgun" approach to troubleshooting. Very expensive way of going about it .

[Zaxxon]

[babu]

Re: sc 142

The optics including white plate are cleaned but not solved.Then after followed the service manual and I checked each board but still not resolving......

[slimslob]

Re: sc 142

Then the next step is to replace the lamp regulator board.

[anothertech]

Re: sc 142

The book lists in this order,

 Dirty exposure lamp or optics section
 SBU board defective
 SIOB defective
 IPU board defective
 BCU board defective
 Harnesses are disconnected
 Exposure lamp defective
 Lamp stabilizer defective
 Scanner motor defective

Did you replace the IPU?
Does the lamp come on?
Check the scan harness to see if it's shorting
HDD could be bad
Are there any other sc codes stored?

[Brianneoe]

Re: sc 142

Just left of the CIS is a mylar strip that collects crap. Peel back the strip and clean the top and bottom. Don't remove it but clean both sides.

Good luck

[babu]

Re: sc 142

Yes I did, Lamp moving and lamp on ,I Changed all PCB and HDD replaced but sc142 again

[babu]

Re: sc 142

MP6002 has no CIS, Exposser Lamp here in mp6002

[slimslob]

Re: sc 142

MP6002 has no CIS, Exposser Lamp here in mp6002

Guess again baby. MP 6002 comes with a one pass document feeder. You're thinking of the MP 6001.

[babu]

Re: sc 142

I have disconnect the SADF connector then turn on the machine and sc142 displayed again

[Gab]

Re: sc 142

The p[roblem is at exposure. First lubricate rails tec. Is scaner mooving smoothly?
What about sensor?

[keithxxiii]

Re: sc 142

Could be a short circuit within the system. On a different machine, (MPC4501) i had these SC 1XX a couple of years back. I swapped most of the boards that are related to it in our workshop but couldn't fix. When I checked the service history, the last call was to replace the Transfer Assembly. Tech did not tighten the screw properly and was grounding the system. Had to tighten the screw and just like that, problem solved.

My 2 cents