Sharp AR-M550U - Developer Tank Section

: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 69
[Developer tank section]
A. General
In this section, toner is attached to electrostatic latent images formed
by laser beams on the OPC drum, making visible images.
B. Major parts and signal functions
Code
Signal
name
Name Function/Operation Type Model Note
HUS-DV HUS-DV Developing humidity sensor Developing section peripheral humidity
detection
Humidity sensor Analog detector
TCS TCS Toner density sensor Toner density detection Magnetic sensor Analog detector
TH-DV TH-DV
Developing humidity sensor Developing section humidity detection Thermistor Analog detector
DVM DVM Developing motor Drives the developing section. DC brushless motor
Bias Bias Developing bias High voltage for developing bias
12
11
10
9
8
7
6
5
4
3
2
1
13
14
15
16
17
18
B18B-PHDSS-B
CN-6
GND2
/DM
DMCLK
DM-T
+5V2
GND2
/DVM
DVMCLK
DVM-T
+5V2
GND2
+5V2
/FUM
FUMCLK
FUM-T
+24V1
GND2
/VFM-BKR
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
4
3
2
1
4
3
2
1
PCU PWB
AC PWB
HV
GND2
DVCH1
DVCH2
DVCH3
GND2
DV-Bias
GND2
TCS
GND2
DVCH4
TCS
GND2
(NC)
(NC)
(NC)
+24V1
HUS-DV
+24V1
51021-0400
DEVELOPER UNIT
DVM
HUS-DV
TH-DV
TCS
DRAWER
+5V2
Bias
PS-187(GR)
DVREM
CN1
TH-DV
TSGOUT
TH-DV
(NC)
(NC)
(NC)
TSGOUT
TH-DV
+5V2
HUS-DV
GND2
ZHR-4
GND2
HUS-DV
MPRD2
GND2
+5V2
+5V-MPRD2
MPRD1
+5V-MPRD1
GND2
TSGOUT
GND2
TCS
+24V1
GND2
PPD
+5V2
DVCH4
DVCH3
DVCH2
DVCH1
+24V1
/PSBC
+24V1
+24V1
/T2PFC
+24V1
/HPFC
CN-12
B30B-PHDSS-B
SRA-01T-3.2
QR/P8-20S-C(01)/QR/P8-20P-C(01)
/HPLS
5
4
3
2
1
2
1
+38V
GND1
GND2
/DVM
DVMCLK
DVM-T
B2PS-VH
S5B-PH-K-S
+5V2
11
10
12
14
15
16
+38V
+38V
GND1
GND1
+38V
GND1
CN-5
B16B-PADSS-1
1 2 3 5
1
3
2
5
4
14
17
16
15
CN-15
/DVPWM
/DVREM
HVREM
+24V1
B34B-PHDSS-B
1
No. Name Operation
1 Developing roller Forms magnetic brush with developer and put toner on the OPC drum.
2 DV doctor Keeps the height of the magnetic brush on the developing roller at a fixed level.
3 Mixing roller Mixes developer (carrier and toner) and charges toner negatively.
4 DV earth plate Earth plate for DV unit
5 AG roller Mixes toner supplied from the toner hopper, and supplies toner to the DV box evenly.