Ricoh FT5034 Service Manual page 34

Manual image
density mode
level
V
B
1 320 V
2 290
3 260 V
4 260 V
5 260 V
6 260 V
7 320 V
2) Function of DPS102 on the Main Board
•
DPS102
No. 1 2
large
á
ON
ON
OFF
â
Nor-
OFF
mal
small
ADS mode
V V
DE
–4
0
V
0
~ 1.65
+6
0
1.65~2.16
+11
0
2.16~2.65
+16
0
2.65 ~
+23
0
+23
0
3 4
ON ON
large
ON OFF
OFF ON
ON
OFF OFF
OFF OFF
OFF
OFF ON
ON OFF
small
ON ON
TB: 0.2%
Pitch
V V
B
440 V +11
0
380 V +11
0
320 V +11
0
260 V +11
0
5 6 7
ON ON
á
ON OFF
OFF ON
OFF OFF
OFF OFF
â
OFF ON
ON OFF
ON ON
E: 0.8 mm
Pitch
- 33 -
Drum temperature: 30°C
V : Development bias voltage
B
V: Lamp voltage
V : ADS input voltage
DE
(V is the voltage of the lamp at
0
the manual image density level 2.)
8
DGS103
0
Nor-
mal R: 1 mm Pitch
(OFF)
TB: Vertical magnification
(Scanner speed)
E: Lead edge erase
R: Lead edge registration
7 F
16 Pitch