[Error Code] Savin 7502 Error SC142-00

[Porhuor]

I got a problem with my photocopy Savin 7502 after not using about 5 days , when turn on machine it showed that SC-142
1. I try to clean exposure lamp, glass
2. change expousure lamp
3. change borad as in picture
4. change len

all of that can not solved the problem do everyone has an experiences about it plese share to me
thank in advanced 🙏

[copier tech]

• Code: 142
• Description:White level detection error The white level cannot be adjusted to the second target level within the target during auto gain control.
• Causes:• 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
• Update the firmware

[Porhuor]

• Code: 142
• Description:White level detection error The white level cannot be adjusted to the second target level within the target during auto gain control.
• Causes:• 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
• Update the firmware

I changed boards and lamp but it can not
only update the firmware?

[Luism]

Hello. Under the exposure glass there is a white band, change it or change the glass for one from another machine

[Porhuor]

Hello. Under the exposure glass there is a white band, change it or change the glass for one from another machine

Do mean this one ?

[Luism]

Yes, correct, the bottom has a white band to establish the white pattern, if it is not white enough you can throw the code

[Luism]

Does the scanner move correctly? If you place it to the right, look for the home position?

[slimslob]

Yes, correct, the bottom has a white band to establish the white pattern, if it is not white enough you can throw the code

Usually dust to toner has gotten under it.

[Luism]

First solve the white band to see if the problem is there, (you can put a strip of white paper to test) then see the developer to see if it spreads toner (how many copies does it have?)

[luca72]

I got a problem with my photocopy Savin 7502 after not using about 5 days , when turn on machine it showed that SC-142
1. I try to clean exposure lamp, glass
2. change expousure lamp
3. change borad as in picture
4. change len

all of that can not solved the problem do everyone has an experiences about it plese share to me
thank in advanced 🙏

I see you replaced the lamp, it lights up during the "hp check" cycle when you turn on the machine, if not, it could be the SBU