Ricoh FT7770 Service Manual page 307

30 April, '89
10-1 I.D. Threshold Level 1 (IDL1)
10-2 I.D. Threshold Level 2 (IDL2)
<Function>
<Operation>
10-3 Toner Supply Amount 1 (TST1)
10-4 Toner Supply Amount 2 (TST2)
<Function>
<Operation>
Varies the toner
threshold level
down.
The threshold level can be changed by setting various
combinations of the memory frames as follows:
I.D. LEVEL
Dark (350 V)
*Normal (410 V)
Light (470 V)
Lightest (500 V)
*Factory Setting
Varies the toner supply by extending or shortening
ON period of the toner supply clutch, according to
average image density of the originals.
The toner supply can be altered by setting various com-
binations of the memory frames as follows:
Supply Amount
15 %
*30 %
45 %
47 %
*Factory Setting
5-94
density of the developer by shifting the
of the image density sensor up or
SP10-1
Set
Reset
Reset
Set
SP10-3
Set
Reset
Set
Reset
SP10-2
Reset
Reset
Set
Set
the
the
SP10-4
Reset
Set
Set
Reset