Kyocera FS-9120DN Service Manual

FS-9120DN/9520DN
2-1-11
(1) Formation of magnetic brush
The developing roller consists of a magnet roller with four poles and a sleeve roller. Rotation of the sleeve roller around
the magnet roller entrains toner, which in turn forms a magnetic brush at pole N1 on the magnet roller. The height of the
magnetic brush is regulated by the doctor blade; the developing result is affected by the position of the poles on the
magnet roller and the position of the doctor blade.
A developing bias voltage generated by the high-voltage transformer unit (HVTU) is applied to the developing roller to
provide image contrast.
A
A: Distance between the doctor blade and developng roller; 0.23 to 0.35 mm
N1:870 × 10
-4
T
N2:420 × 10
-4
T
S1:700 × 10
-4
T
S2:910 × 10
-4
T
N1
90
88
88
S1
S2
N2
Doctor blade
Developing roller
Figure 2-1-13 Forming a magnetic brush
TNFSOL
TNFSOL
TCS
TNS SIG
TNS
DB REM
24 V DC
HVTU
EPWB
YC1-1
DB
YC1-2
YC9-B2
TCS
YC9-A5
YC9-A9
YC7-1
YC7-2
Figure 2-1-14 Developing section block diagram

Kyocera FS-9120DN Specifications

General

I/O ports	1 x Fast Ethernet 10/100 Base TX; 1 x High speed bi-directional parallel (IEEE 1284); 1 x USB 2.0 (High-Speed); 1 x KUIO LV Option-Interface slot.
Custom media sizes	88 x 148 mm - 297 x 450 mm
Power requirements	AC 220/240 V 50/60 Hz
Standard input trays	2 x 500
Recommended media weight	60 - 105 g/m²
Power consumption (active)	920 W
Maximum print size	297 x 420 mm
Maximum ISO A-series paper size	A3
Color	No
Print technology	Laser
Time to first page (black, normal)	7 s
Print speed (black, normal quality, A4/US Letter)	36 ppm
Memory slots	2
Storage media	HDD
Processor model	Power PC 750CX
Built-in processor	Yes
Maximum internal memory	544 MB
Internal storage capacity	20 GB
Sound power level (standby)	39 dB
Sound pressure level (printing)	53 dB
Total input capacity	1200 sheets
Maximum input capacity	4200 sheets
Paper tray 2 input capacity	200 sheets
Maximum duty cycle	55000 pages per month
Sustainability certificates	ENERGY STAR
Power consumption (standby)	160 W
Power consumption (PowerSave)	12 W

Weight and Dimensions

Dimensions (WxDxH)	585 x 639 x 615 mm