Ricoh FT7770 Service Manual page 537

Are the darker
boundaries)?
Y N
I
Is the band interval 67mm?
Y N
Does the lamp regulator output fluctuate?
Replace the lamp regulator.
The development roller bearings may be clogged with toner;
therefore, clean the development roller bearings.
Clean the transfer corona unit.
and lighter areas clearly contrasted (sharp
N
I
conductive foreign substances from
Remove any
around the development sleeve.
Check and correct the DG, Pre-DG, and the flow
gaps.
13-13
30 April, '89