Sharp AL-840 (serv.man4) Service Manual ▷ View online
(8) Scanning sensor
Type
Reduction optical image sensor (CCD)
Monochrome
D. Scanner (Exposure) section
(1) Type
(2) Resolution
Main scanning direction
Sub scanning direction
600 dpi
600 dpi
(3) Gradient
2 steps
(4) Details of Laser unit
Revolution
11,811 rpm
Number of mirrors
6
Laser power
0.35 mw
Laser beam size
75
×
65
µ
m
Laser wave length
785 nm
E. Imaging process section
(1) Imaging speed
50 mm/sec.
(2) Photoconductor (Drum)
Type
OPC (
φ
24 mm)
Life time
20,000 sheets
(3) Toner
Type
Developer cartridge color: black
Capacity/Life time
3,000 sheets (1,500 sheets with initially
installed cartridge) (A4 5% cover ratio)
installed cartridge) (A4 5% cover ratio)
(4) Charging
Method
Brush charging method
Voltage
DC-850 V AC 600 V (P-P)
(5) Transfer
Method
Transfer roller method
Voltage
DC+3.5 kV AC 600 V (P-P)
(6) Exposure
Method
Semiconductor laser method
(7) Develop
Method
Mono component non-magnetic method
Voltage
–310 V
(8) Separation
Method
Separation charger type/method
(9) Discharge (Japan only)
Method
Discharge brush type
(10) Cleaning
Method
By developing roller
Voltage
+200 V
F. Fusing
(1)
Method
Quick heat-up with pressure roller method
(2) Lamp
Type
Main unit
power supply
Voltage
Power
consumption
Halogen lamp
100/120/230 V
100/120/230 V
500 W
(3) Fusing temperature
Ready mode/
Print mode
Power save mode
Print mode (after
20th sheet in the
multi print mode)
20th sheet in the
multi print mode)
160°C
80°C
155°C
(4) Heat roller
Type
Teflon coated roller
(5) Pressure roller
Type
Silicone rubber roller
(6) Separation method
Forced separation by separation pawl
G. Power drive
Stepping motor (Main motor)
H. Engine control MCU (PCU)
Processor
CPU (H8S2350FP)
ASIC (HG73C025FD)
ASIC (HG73C025FD)
I. Image control (ICU)
Processor
ASIC (SLA303TF2B)
J. Memory
Type
Capacity
Contents
Location
DRAM
512 KB
Print data
ICU PWB
ROM
(EPROM)
(EPROM)
1 M bit
Program
MCU (PCU) PWB
DRAM
16 M bit
×
3
Copy image data
MCU (PCU) PWB
EEPROM
2 K bit
Control data
MCU (PCU) PWB
SRAM
32 K bytes
×
2
Line image data
MCU (PCU) PWB
RAM
265 K bit
×
2
Work memory
MCU (PCU) PWB
K. Interface
Type
Items
Operating system
IEEE1284P
Protocol
Peppy/Nibble
Data transfer speed
3 Mbit/sec (Max)
Connector type
—
L. Power supply
Type
Output
Voltage
Current
Notes
DC power
supply
supply
+24 V
+12 V
+12 V
+5 V
+3.3 V
2.0 A
0.13 A
1.1 A
0.25 A
High voltage
power supply
power supply
DC –310 V (+200 V)
DC +3.5 KV (AC 600 V P-P)
DC –850 V (AC 600 V P-P)
—
2 – 6
M. Operating voltage/power consumption
Sub-
sidiaries
Power
supply
supply
voltage/
frequency
Power consumption
Power
save
mode
Ready
mode
Power
shut-
down
mode
mode
Average
(during
printing)
Max.
—
120V
50/60Hz
29 Wh/h
55 Wh/h
17 Wh/h
170 Wh/h
600 W
—
220–240V
50/60Hz
35 Wh/h
64 Wh/h
19 Wh/h
175 Wh/h
600 W
(Within Rated voltage
±
10% and Rated frequency
±
2%)
N. Safety/environmental standard
(1) Safety/environmental standard
Item
Standard name
Country
Safety standard
SEMKO
Sweden
NEMKO
Norway
DEKRA (GS MARK)
Germany
BSI
U.K
CUL UL
USA/Canada
FDA
USA
Radio wave noise
standard
standard
CE MARK
Europe
C-TICK
Australia
FCC
USA
Energy standard
ENERGY STAR
World wide
(Printer only)
(Printer only)
Environmental
standard
standard
—
—
(2) Ozon level
Very low (unmeasurable level)
(3) Noise level
Noise mode
Individual
Operating
mode
Ready mode
Power
shut-down
mode
Sound power
level
level
66
40
0 dB
Sound
pressure level
pressure level
54.8 dB
—
0 dB
O. Ambient conditions
(1) Occupied area
Main unit
460
×
650 mm (18.2
×
29.53 in.)
(2) Operating conditions
(3) Storage conditions (packed in the packing material)
(4) Transport condition (packed in the packing material)
(5) Atmospheric pressure
595 mmHg or above
(6) Standard condition
20 to 25°C 65
±
5% RH, Rating for different countries
10˚C
35˚C
85%
20%
30˚C, 85%
35˚C, 60%
Humidity
Temperature
RH
–10˚C
50˚C
90%
10%
40˚C, 90%
50˚C, 60%
Humidity
Temperature
RH
Machine
–10˚C
40˚C
90%
10%
40˚C, 90%
Humidity
Temperature
RH
Supply
−
25˚C
40˚C
90%
15%
30˚C, 90%
40˚C, 60%
Humidity
Temperature
RH
Machine
−
10˚C
40˚C
90%
10%
40˚C, 90%
Humidity
Temperature
RH
Supply
2 – 7
[3] CONSUMABLE PARTS
1. Configuration
No.
Part name (Item)
1
Photoconductor cartridge
2
Developer cartridge
2. List
A. Consumable parts for exclusive use
No.
Part name (Item)
(Single form)
(Compound form)
Note
Model name
Content
Parts item
Q’ty
Life
Model name
Q’ty
1
Photoconductor
cartridge
cartridge
AL-80DR
Photoconductor
cartridge
cartridge
1
20K
10
2
Developer cartridge
AL-80TD
Developer cartridge
1
3K
10
3. Details
(1) Photoconductor drum
Item
Specifications/Descriptions
Part name
Photoconductor cartridge
Model name
(Single unit)
(Single unit)
AL-80DR
Quantity
1
Model name
(Compound form)
(Compound form)
—
Quantity
10
Photo (Picture)
Type (Kind)
OPC
Form
Cartridge
1. Photoconductor cartridge
2. Developer cartridge
3 – 1
Item
Specifications/Descriptions
Life
Print quantity
20K
Effective use period
36 months from production when sealed, or 20 months when unsealed. (Shorter one, max. 36
months)
months)
Weight/Capacity/
Quantity
Quantity
Weight
Single unit
Weight (g/kg)
241 g
Weight (lbs)
Compound form
Wright (g/kg)
Weight (lbs)
Quantity
Single unit
Compound form
Capacity
(Litter)
Applied model
AL-800/840
Compatibility
information
information
Product No. content
Guarantee period
(Month)
24
Counted from the production month. Stored under storage environment
conditions (sealed).
conditions (sealed).
Note
(2) Developer cartridge
Item
Specifications/Descriptions
Part name
Developer cartridge
Model name
(Single unit)
(Single unit)
AL-80TD
Quantity
1
Model name
(Compound form)
(Compound form)
—
Quantity
10
Photo (Picture)
Type (Kind)
Mono-component toner
Form
Cartridge
Life
Print quantity
3K (A4, 5% cover ratio)
Effective use period
24 months from the production month when sealed, or 12 months when unsealed. (Shorter one,
max. 24 months)
max. 24 months)
Others
Weight/Capacity/
Quantity
Quantity
Weight
Single unit
Weight (g/kg)
463 g
Weight (lbs)
Compound form
Wright (g/kg)
Weight (lbs)
Quantity
Single unit
Compound form
Capacity
80 g
Applied model
AL-800/840
Compatibility
information
information
Ver.
Version
Production year
(End digit)
(End digit)
Fixed to 1. Form
Serial No. in each
production month
production month
Production
month
month
0: October
X: November
Y: December
X: November
Y: December
3 – 2
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