Sharp SF-1020, SF-1120 service manual Description of each section, SF-CM15, SF-CM16

2. Description of each section

(1)Paper feed section

					SF-1020	SF-1120
	Copying size				A3 ∼ A6/W letter ∼ Invoice
	Paper feed			2 trays + multi		1 tray + multi
	system			manual feed		manual feed
	Paper feed			250 sheets × 2		250 sheets × 1
	capacity
Cassette			Paper size		Paper weight	Paper kind	Remark
			AB series:		56 ∼ 80g/m2	Standard
Body tray			A3 ∼ A5			paper,
			Inch series:
upper stage						recycled	SF-1120:
			W letter ∼		15 ∼ 20 lbs
						paper
			Invoice				copier
							paper
			AB series:		56 ∼ 80g/m2	Standard
							feed tray
Body tray			A3 ∼ A5			paper,
			Inch series:
lower stage						recycled
			W letter ∼		15 ∼ 20 lbs
						paper
			Invoice
			AB series:		56 ∼ 80g/m2	Standard	SF-CM15
Paper feed			A3 ∼ A5			paper,	(2-step)
			Inch series:
unit (option)						recycled	SF-CM16
			W letter ∼		15 ∼ 20 lbs
						paper	(1-step)
			Invoice
			AB series:		56 ∼ 80g/m2	Standard
			A3 ∼ A6R			paper,
		Multi	Inch series:		15 ∼ 20 lbs	specified
			W letter ∼			paper,
Multi			Invoice			special
manual						paper, OHP
					52 ∼
paper						film, Second
			AB series:		128g/m2
feed			A3 ∼ A6R			original
						paper,
		Single	Inch series:
						postcards
			W letter ∼		14 ∼ 34 lbs
						(without
			Invoice
						folding)

(2)	Optical section
Light source		Halogen lamp
Exposure system		Slit exposure by moving the light source
Zooming system		By changing the lens positions and the scan
		speed.
Lens		Fixed focus lens
(3)	Process
Charging system			(–) DC saw teeth electrode system
Transfer system			(–) tungsten system
Separation system			(AC) separation tungsten system
(4)	Developing section
Developing system			Dry, two-component magnetic brush
			development (developer replacement)
Developing bias voltage			DC–200V ±5V

(5)Fusing section

Fusing system			Heat roller system
Upper heat roller surface temperature			190 degrees C
Heater lamp		Halogen lamp 1000W × 1
(6) ADU section (For SF-1120 only)
Paper kind	Normal paper, 56g/m2 ∼ 80g/m2
Capacity	30 sheets		50 sheets
Paper size	B4/81⁄2″ × 14″		A4, B5, A5/81⁄2″ × 11″
Copy void width	Lead edge, 3mm or less
	Rear edge, 3mm or less

2 – 2