точно CIS с 4200 подкинул заработал гад!
хотя в мануале сказано что могла быть main board!
0609-001396 - CONTACT IMAGE SENSOR под замену!
? Troubleshooting method :
1. Enter tech mode. (refer to 4.1.5)
2. Select “SD” menu using Up/Dn key. (в сервис меню 50)
3. Press Start Key.
Shading report will be printed such as below images after machine starting scan shading.
4. Check shading report
if result of waveform for each color is irregular or very low level, try again 2~3.
if result is still produced even though try again,
change CIS or main board.