C. Optical (Image Scanning) Section - Sharp AR-M236 Service Manual

f. Separator system
by control of main machine
g. Exit paper size
Upper exit tray (Job separator
tray)
Lower exit tray (Main machine
exit tray)
h. Exit paper weight
2
52 to 128g/m (14 to 34.1lbs)
i. Paper pass
center (same as main unit)
j. Exit area/finishing
Upper exit tray (Job separator tray)
Lower exit tray (main machine exit tray)
k. Power supply
Power supply
Power consumption
l. Method of movement
with original motor (not with main machine)
m. Machine weight
0.6 kg
n. Exit capacity
Upper exit tray (Job separator)
Lower exit tray (main machine exit tray)
∗
300 sheets except for A4/LT
o. Tray full detector
Upper exit tray (Job separator)
Lower exit tray (main machine exit tray)
p. Concept of function
Upper exit tray (Job separator)
Lower exit tray (main machine
exit tray)
q. Main color of cabinet
Frosty white
r. Setting
to be easy setting

C. Optical (Image scanning) section

(1) Type
Flat-bed type/monochrome
(2) Document reference position
Rear left reference
(3) Resolution
Main scanning direction
400 dpi
(4) Gradation
256 gradations (8-bit)
(5) Original size/Scanning area
a. Max. original size
A3 paper (11" × 17")
AB system A3 to A6
Inch system 11 x 17 to 8.5 x 5.5
AB system A3 to A6
Inch system 11 x 17 to 8.5 x 5.5
Face down
Face down
DC 24V (from main machine)
5.6W
100 sheets
∗
500 sheets ( )
Yes
Yes
Copy/FAX/Printer (This setting can
be done by users.)
Copy/Printer/FAX (This setting can
be done by users.)
Sub scanning direction
400 dpi
AR-M236/M276/M237/M277 SPECIFICATIONS 3 - 3
(6) Scanning speed
122mm/sec (600 dpi: magnification ratio 100%)
61mm/sec (1200 dpi: magnification ratio 100%)
(7) Light source (lamp)
Type Xenon
Drive voltage 1.5 kV
(8) Read sensor
Type Reduction optical system image sensor (CCD)
Monochrome
D. Scanner (exposure) section
(1) Resolution
Main scanning direction
600 dpi
(2) Gradation
2 gradations
(3) Laser unit specifications
r.p.m. 28,800 rpm
Mirror surfaces 6 faces
Laser power 0.4mW/600dpi, 0.2mW/1200dpi
µ (
Laser beam size 60 Main scan) x 70
Laser wave length 785nm
E. Image process section
Imaging speed 600 dpi : 122 mm/sec.
1200 dpi : 61 mm/sec.
Photo Type OPC drum (dia. 30mm)
conductor
LIFE 75,000 sheets
Toner Type Developer (Black)
LIFE 25,000 sheets (Toner, life: 25k, Developer
life: 75k)
Charge System (–) DC scorotron (saw tooth)
µ
Voltage 560 A constant electric current
Transfer System Transfer roller
µ
Voltage 18 A (electric current)
Exposure Xenon lamp
Developing Dry, 2-component magnetic brush
development
Separation (–) DC scorotron
Discharge —
Cleaning Blade
F. Fusing
Type Heat roller
Lamp Type Halogen lamp
Voltage 100V
Power 1000W
consumption
Fusing temperature 185° (600 dpi)
160° (1200 dpi)
Heat roller Teflon coated roller
Pressure roller Silicone rubber roller with re-engerized
cube
Separation system Natural separation (with pawl)
G. Drive
Drive section
Main motor DC brushless motor
Sub scanning direction
600 dpi
µ
(Sub scan)
Motor