Developer Unit; L] Developing Section - Sharp MX-M550U Service Manual

MX-M700N

[L] DEVELOPING SECTION

1. Electrical and mechanism relation diagram
1 2 3 5
3
2
1
TCS
5
Signal
Code
name
HUS-DV HUS-DV Developing humidity sensor
TCS TCS Toner density sensor
TH-DV TH-DV Developing humidity sensor
DVM DVM Developing motor
Bias Bias Developing bias
No. Name
1 Developing roller
2 DV doctor
3 Mixing roller
4 DV earth plate
5 AG roller
HUS-DV
TH-DV
Name
Forms magnetic brush with developer and put toner on the OPC drum.
Keeps the height of the magnetic brush on the developing roller at a fixed level.
Mixes developer (carrier and toner) and charges toner negatively.
Earth plate for DV unit
Mixes toner supplied from the toner hopper, and supplies toner to the DV box evenly.
MX-M700N DEVELOPING SECTION L – 1
DVM
4

DEVELOPER UNIT

DRAWER
1
DVCH1
2
DVCH2
51021-0400 3 DVCH3
1
TSGOUT 4 DVCH4
+24V1 2 5 +24V1
TCS 3 6 TCS
GND2 4 7 GND2
8 TSGOUT
9 (NC)
10 GND2
ZHR-4 11 (NC)
+5V2 1 12 +5V2
HUS-DV 2 13 HUS-DV
GND2 3 14 GND2
TH-DV 4 15 TH-DV
16 (NC)
17 (NC)
18 (NC)
SRA-01T-3.2 19
(NC)
20
DV-Bias
QR/P8-20S-C(01)/QR/P8-20P-C(01)
Function/Operation
Developing section peripheral humidity detection
Toner density detection
Developing section humidity detection
Drives the developing section.
Developing bias
Function/Operation
CN-5
B16B-PADSS-1
+38V
10
+38V
11
+38V
12
GND1
14
GND1
15
GND1
16
B2PS-VH
+38V 1
CN-6
GND1 2
B18B-PHDSS-B
S5B-PH-K-S
1 GND2
GND2 1
2 GND2
+5V2 2 3 +5V2
/DVM 3 4 +5V2
DVMCLK 4 5 /DM
DVM-T 5 6 /DVM
7 DMCLK
8 DVMCLK
9 DM-T
10 DVM-T
11 GND2
12 +5V2
13 /FUM
14 FUMCLK
15 FUM-T
16 +24V1
17 /VFM-BKR
18 GND2
CN-12
B30B-PHDSS-B
1 +24V1
2 +24V1
3 /T2PFC
4 /HPLS
5 +24V1
6 DVCH1
7 /HPFC
8 DVCH2
9 +24V1
10 DVCH3
11 /PSBC
12 DVCH4
13 +5V2
14 +24V1
15 PPD
1
16 TCS
2
17 GND2
3 18 GND2
4 19 +5V-MPRD1
5 20 TSGOUT
6 21 GND2
7 22 GND2
8 23 MPRD1
9 24 +5V2
10 25 +5V-MPRD2
11 26 HUS-DV
12 27 GND2
13 28 GND2
14 29 MPRD2
15 30 TH-DV
16
17
18
19 PS-187(GR)
20 Bias
Type
Humidity sensor
Magnetic sensor
Thermistor
DC brush-less
motor
AC PWB
PCU PWB
CN-15
B34B-PHDSS-B
/DVPWM 14
/DVREM 15
HVREM 16
+24V1 17
CN1
HV
DVREM
NOTE
Analog
detector
Analog
detector
Analog
detector