Ricoh FT5233 Service Manual page 366

12 February 1992
Make copies with a test chart and monitor the Vsp value and the toner
supply clutch function.
Is the toner supply clutch controlled properly?
Yes No
Is the voltage at CN110-B9 alway LOW?
Yes
Replace the main control board.
Is the grid reference voltage (SP62) correctly set?
Yes No
Set the correct data in SP62, refering to the label on the high voltage
supply board - CTBG.
Is the grid voltage data (SP161) correctly set?
Yes No
Set the factory set data in SP161 if the high voltage supply board
- CTBG is the original one. If not, set 500.
Is the copier in fixed supply mode?
No Yes
Change data of SP30 to "0".
Change the setting of ID sensor pattern bias (SP33 for black and SP75 for
color) to the lighter one.
No
Replace the toner supply clutch.
6-17
COPY QUALITY