
316
SEP 2006
Ver. 1.0
DP-8020E/8020P/8016P
6.4.4.
Printing Process Operation
The Process Unit consists of Developer Unit, OPC Drum unit and Toner Bottle with Toner supplied. Toner is
supplied to the Process Unit.
The Process Unit includes the Toner Paddle and Mag Roller that supplies Toner to the OPC Drum.
The Cleaning Blade is attached to the OPC Unit. The Cleaning Blade scrapes the OPC Drum surface to
remove the excess toner on the surface of the OPC Drum into the Toner Waste Chamber. The removed
toner is moved into the Toner Waste Container by means of Toner Waste Paddle and Toner Waste Screw.
Developer Unit
1. Construction of the Developer
a. The developer unit consists of the Magnet Roller, Sleeve and Toner Screws.
b. The developer is mixed and charged by the Toner Screws where it is transferred to the developer
sleeve. The developer on the sleeve forms a brush by the magnetic force of the Magnetic Roller,
and makes contact with the electrostatic latent image on the drum. Toner is attracted to the areas of
the drum which have been discharged by the laser.
c. The Doctor Blade regulates the height of the magnetic brush which is formed by the developer
which is attracted to the sleeve of the Magnetic Roller.
d. The TDC sensor is an inductance type sensor used to measure the ratio of toner to developer.
e. A dust collector vacuum duct is provided over the developer unit to prevent toner dusting. The dust
collector is duct connected to the dust collector fan mounted on the machine frame which vacuums
the scattered toner to prevent toner dusting over the developer unit.
2.
Developing
a. The developer mixing unit contains developer which is a mixture of fine powder (non-magnetic
toner) and fine ferrite carrier.
Doctor Blade
OPC Drum
Recording Paper
Toner Bottle
Toner Waste Paddle
Toner Waste Screw
Cleaning Blade
Bias Charge Unit
Magnet Roller
Toner Screw 1
Toner Screw 2
Process Unit
Содержание DP-8020E
Страница 2: ...2 ...
Страница 5: ...5 ...
Страница 10: ...10 ...
Страница 11: ...11 ...
Страница 12: ...12 ...
Страница 62: ...62 SEP 2006 Ver 1 0 DP 8020E 8020P 8016P 24 Remove the LCD Holder 520 25 Remove the LCD Module 519 ...
Страница 105: ...105 SEP 2006 Ver 1 0 DP 8020E 8020P 8016P DETAIL A 28 35 31 32 33 34 30 29 ...
Страница 185: ...185 SEP 2006 Ver 1 0 DP 8020E 8020P 8016P 3 10 10 MJR PC Board CN22 Refer to FXB PC Board CN25 Refer to FXB PC Board ...
Страница 466: ...466 SEP 2006 Ver 1 0 DP 8020E 8020P 8016P memo ...
Страница 467: ...DZSD001829 14 Panasonic Software Operating Instructions Network Firmware Update Tool for Service Technicians Version 3 ...
Страница 482: ...DZSD000965 17 Panasonic Software Operating Instructions Local Firmware Update Tool for Service Technicians Version 3 ...
Страница 493: ...Local Firmware Update Tool Parallel USB Port Page 12 5b4 Firmware Code File selection is completed Click Next ...
Страница 497: ......
Страница 498: ...Published in Japan ...