Kyocera FS-1118MFP Service Manual

2GM
2-1-14
(4) Development
The latent image constituted on the drum is developed into a visible image. The developing roller contains a 3-pole (S-N-
S) magnet core and an aluminum cylinder rotating around the magnet core. Toner attracts to the developing roller since it
is powdery ink made of black resin bound to iron particles. Doctor blade, magnetized by magnet, is positioned
approximately 0.3 mm above the developing roller to constitute a smooth layer of toner in accordance with the roller
revolution.
Figure 2-1-14 Development
The developing roller is applied with the AC-weighted, positive DC power source. Toner on the developing roller is given
a positive charge. The positively charged toner is then attracted to the areas of the drum which was exposed to the laser
light. (The gap between the drum and the developing roller is approximately 0.3 mm.) The non-exposed areas of the
drum repel the positively charged toner as these areas maintain the positive charge.
The developing roller is also AC-biased to ensure contrast in yielding by compensating the toner’s attraction and
repelling action during development.
HVCLK
Bias
PWB
YC-B
Engine PWB
YC7-10YC302-10
N
S
N
S
S
0.3 - 0.4 mm
0.1 mm
Magnetism
Developing
roller
Magnet
core
Magnet
Toner
Drum
Doctor blade
Developing
bias output
275±5 V DC
+ AC

Kyocera FS-1118MFP Specifications

General

Print technology	Laser
Maximum resolution	1800 x 600 DPI
Time to first page (black, normal)	8 s
Print speed (black, normal quality, A4/US Letter)	18 ppm
Fax memory	6 MB
Modem speed	33.6 Kbit/s
Dimensions (WxDxH)	496 x 421 x 385 mm
Power requirements	AC 220 ~ 240 V, 50/60 Hz
Networking features	TCP/IP
All-in-one functions	Scan
Standard media sizes	60-105 g/m2, A4, B5, A5, A6, Letter, Legal, Folio 50-sheet multi-purpose tray, 60-163 g/m2, A4, B5, A5, A6, Letter, Legal, Folio, Custom (105 x 148 to 216 x 356 mm), envelopes
Color all-in-one functions	scan, n
Compatible operating systems	Windows 98, 98SE, ME, 2000, XP, NT 4.0
Total input capacity	250 sheets
Total output capacity	150 sheets
Maximum input capacity	550 sheets
Maximum print size	210 x 297 mm
Maximum ISO A-series paper size	A4
Internal memory	96 MB
Processor model	750CXr
Processor family	PowerPC
Built-in processor	Yes
Maximum internal memory	320 MB
Sound power level (standby)	43 dB
Sound pressure level (printing)	65 dB
Bundled software	Paper Port Deluxe 9.2
Grayscale levels	256
Certification	TÜV/GS, CE
Maximum duty cycle	10000 pages per month
Power consumption (standby)	76 W
Power consumption (PowerSave)	40 W
Power consumption (average operating)	409 W
Market positioning	Home & office