IV-9
(2)
Variation of OPC Belt Potential (See Fig.4-10.)
i) The OPC belt is initially biased to -CBV(V).
ii) The OPC belt surface is evenly charged to V
0
(V) in the charging process.
iii) The potential of the exposure part of the OPC belt is reduced to -VR(V) as it is
exposed to the laser beam in the process of exposing, and an electrostatic
latent image is formed on the OPC belt as the result.
iv) Negatively charged toner is moved onto the exposed part of the OPC belt in
the development process due to the difference of potential between -VR(V)
(the latent image) and -DBV(V), and a visible toner image is formed as the
result.
v) Negatively charged toner on the OPC belt moves to the transfer drum surface
in the transfer process because the GND potential of the transfer drum is
greater than -VR(V) of the OPC belt.
vi) The OPC belt is discharged by the erase lamp.
-CBV
-CBV
-CBV
-CBV
-V0
-V0
-V0
-V0
-V0
-V0
-V0
-V0
-V0
-V0
brother
-V0
-V0
-V0
-V0
-V0
-V0
-V0
-V0
-V0
-CBV
-CBV
-CBV
-CBV
Charging
Laser
Diode
Exposing
Blade
K
Y
M
C
Developing
Transfer
Belt
Erase
Lamp
OPC
Belt
-DBV
-CHV
-CBV
OV
OPC
Belt
Surface
-CBV
-V0
-VR
OPC
Charger
Roller
PU
Dev
Roller
-DBV
(M)TONER
-V0
-V0
-V0
-V0
-V0
-V0
-V0
-V0
Latent
Image
Toner
Image
brother
brother
Fig.4-10
Содержание HL-2700CN Series
Страница 16: ...viii 3 Rating Label 6 0A 11 0A For Europe For US ...
Страница 18: ...CHAPTER I PRODUCT OUTLINE ...
Страница 27: ...CHAPTER II SPECIFICATIONS ...
Страница 39: ...III 1 CHAPTER III INSTALLATION ...
Страница 53: ...CHAPTER IV STRUCTURE OF SYSTEM COMPONENTS ...
Страница 84: ...IV 31 Layout of Clutches and Solenoids 1 2 3 4 5 6 7 8 9 10 Fig 4 30 ...
Страница 90: ...IV 37 ...
Страница 93: ...IV 40 c Interface Circuit Printer side Table 4 1 Interface Circuit ...
Страница 102: ...IV 49 Main PCB circuit Diagram 1 7 IV 49 CODE B512168CIR 1 7 LJ9515001 NAME ...
Страница 103: ...IV 50 Main PCB circuit Diagram 2 7 IV 50 CODE B512168CIR 2 7 LJ9515001 NAME ...
Страница 104: ...IV 51 Main PCB circuit Diagram 3 7 IV 51 CODE B512168CIR 3 7 LJ9515001 NAME ...
Страница 105: ...IV 52 Main PCB circuit Diagram 4 7 IV 52 CODE B512168CIR 4 7 LJ9515001 NAME ...
Страница 106: ...IV 53 Main PCB circuit Diagram 5 7 IV 53 CODE B512168CIR 5 7 LJ9515001 NAME ...
Страница 107: ...IV 54 Main PCB circuit Diagram 6 7 IV 54 CODE B512168CIR 6 7 LJ9515001 NAME ...
Страница 108: ...IV 55 Main PCB circuit Diagram 7 7 IV 55 CODE B512168CIR 7 7 LJ9515001 NAME ...
Страница 110: ...IV 57 Layout of Connector Pin Assignment Power Supply Unit Fig 4 40 ...
Страница 118: ...IV 65 1 MCTL P W B I1CN IOD P W B DCN1 2 MCTL P W B I2CN IOD P W B DCN3 ...
Страница 124: ...IV 71 30 Duplex Connector 31 Lower Feeder Connector 32 DCN2 IOD 33 DCN8 IOD LaserFan ...
Страница 125: ...CHAPTER V CONTROL PANEL OPERATION ...
Страница 171: ...CHAPTER VI PERIODIC MAINTENANCE ...
Страница 197: ...CHAPTER VII DISASSEMBLY ...
Страница 200: ...VII 3 Table 7 1 Table of Applicable Screws ...
Страница 257: ...CHAPTER VIII TROUBLESHOOTING ...
Страница 316: ...VIII 59 5 IMAGE FAILURE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...
Страница 317: ...VIII 60 15 a 15 b 16 17 18 19 20 21 22 23 24 25 Fig 8 2 ...
Страница 346: ...A 4 6 Transfer Unit X X X X X X 7 1 2 3 Location DATE MONTH SERIAL NO YEAR ...