December 2002 TOSHIBA TEC
3 - 5
e-STUDIO160/200/250 COPYING PROCESS
• Magnetic roller
- Magnetic brush development -
The South and North poles are arranged,
as shown in the figure on the right inside
the magnetic roller. The developer mate-
rial contacts the drum forming a brush.
This is caused by the lines of magnetic
force between the South and North poles.
N
S
S
03012
Drum
Sleeve
Magnet
Lines of
magnetic force
Fig. 3-2-11
(6) Transfer
• This process transfers the (visible) image
developed on the drum surface by the toner
onto the paper.
•
Method: Corona discharge (reverse polar-
ity of toner) is caused by the trans-
fer charger to happen to paper
passing between the drum and the
transfer charger.
The toner moves from the drum
surface onto the paper.
Paper
Drum
Transfer charger
03013
03014
Toner
Progress of
paper
Rotation of drum
Transfer
charger
Fig. 3-2-12
Fig. 3-2-13
*
For smooth transfer, this machine features a transfer bias stage.
The transfer bias process prevents the charge of the transfer charger from flowing to the paper feed
pinch roller and paper transfer guide plate through the paper by applying the bias voltage (375V DC)
to the paper feed pinch roller and paper transfer guide plate. This is done to improve transfer effi-
ciency.
Normally, the corona discharge is applied by a voltage of 5.2 kV DC. However, to improve transfer-
ability at the leading edge of the paper, a higher output (5.5 kV DC) is applied to the leading edge of
the paper.
Содержание e-studio 160
Страница 2: ... 2002 TOSHIBA TEC CORPORATION All rights reserved ...
Страница 21: ...e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 8 December 2002 TOSHIBA TEC B 2 Switches SW2 SW1 02 02 04 ...
Страница 140: ...8 PRINTING 8 1 8 1 General Description 8 1 8 2 Structure 8 2 8 3 Laser Diode 8 5 8 4 Disassembly and Replacement 8 6 ...
Страница 222: ...December 2002 TOSHIBA TEC 16 1 e STUDIO160 200 250 PC BOARD 16 BOARD ASSEMBLY 16 1 PWA F MAN 16 01 01 ...
Страница 223: ...e STUDIO160 200 250 PCB BOARD 16 2 December 2002 TOSHIBA TEC 16 2 PWA F RLY 16 02 01 ...
Страница 224: ...December 2002 TOSHIBA TEC 16 3 e STUDIO160 200 250 PC BOARD 16 3 PWA F PIF 16 03 01 ...
Страница 225: ...e STUDIO160 200 250 PCB BOARD 16 4 December 2002 TOSHIBA TEC 16 4 PWA F PNL 16 5 PWA F VR 16 04 01 16 05 01 ...
Страница 226: ...December 2002 TOSHIBA TEC 16 5 e STUDIO160 200 250 PC BOARD 16 6 PWA F SLG 16 06 01 ...
Страница 227: ...e STUDIO160 200 250 PCB BOARD 16 6 December 2002 TOSHIBA TEC 16 7 PWA F FUS ASD AUD CND SAD models 16 07 01 ...
Страница 228: ...17 WIRE HARNESS CONNECTION DIAGRAMS 17 1 ...
Страница 255: ...1 1 KANDA NISHIKI CHO CHIYODA KU TOKYO 101 8842 JAPAN ...