Sharp DM-1500 (serv.man2) Service Manual ▷ View online
Uninstall AR-150 Series PCL
The printer driver can be uninstalled. If the driver is uninstalled, printing
can no longer be performed on the printer.
For proper uninstallation, be sure to use the SHARP uninstall program
of the printer driver group.
Readme
The latest information on the printer driver is included in this document.
Read the Readme first.
Status Monitor
The Status Monitor window provides visual information about the
printer state and current job.
Status Monitor HELP
Assistance and information for Status Monitor.
● Be sure to read the “Readme” document found in the printer driver
The printer driver can be uninstalled. If the driver is uninstalled, printing
can no longer be performed on the printer.
For proper uninstallation, be sure to use the SHARP uninstall program
of the printer driver group.
Readme
The latest information on the printer driver is included in this document.
Read the Readme first.
Status Monitor
The Status Monitor window provides visual information about the
printer state and current job.
Status Monitor HELP
Assistance and information for Status Monitor.
● Be sure to read the “Readme” document found in the printer driver
group before using your SHARP AR-150 Series PCL printer.
● You cannot use both the status monitor and the Print Manager at the
same time in Windows 3.1 environment.
12. TEST PRINTING
To test print the configuration page and font list, use the following pro-
cedure:
1) Press and hold down the light and dark keys simultaneously for
cedure:
1) Press and hold down the light and dark keys simultaneously for
more than 5 seconds until all the alarm indicators blink and “--” ap-
pears in the display.
pears in the display.
2) Set “6” (configuration page) or “7” (font list) using the left copy
quantity key. The selected number will blink in the left side of the
display.
display.
3) Press the print key. The entered program number will be steadily
lit and the currently selected parameter number for the program will
blink on the right side of the display.
blink on the right side of the display.
4) Select the desired parameter using the right copy quantity key. The
entered parameter number will blink on the right of the display.
Program
No.
Mode
Parameters
6
Configu-
ration
page
0
→ English
1
→ French
2
→ Spanish
3
→ Italian
4
→ German
7
Font list
0
→ English
1
→ French
2
→ Spanish
3
→ Italian
4
→ German
5) Press the print key. The test page prints.
Note: To change the setting or to set another mode, press the clear
key. The printer will return to step 2.
Configuration Page items
1st level item
2nd level item
3rd level item
Hardware Status
Machine Information
Language
Hardware Specs
Basic Memory
Total Memory
Processor
64 bit RISC
Interface Menu
I/O Timeout
ROM Version
Total Page Count
Version Information
PCL6
Input Paper Tray
Bypass Tray
Tray 1
Tray 2
DM-1505
5 – 6
[6] OPERATIONAL DESCRIPTIONS
1. Outline of operation
The outline of operation is described referring to the basic configuration.
(Basic configuration)
(Outline of copy operation)
Setting conditions
1) Set copy conditions such as the copy quantity and the copy density with the operation section, and press the COPY button. The information
on copy conditions is sent to the MCU.
Image scanning
2) When the COPY button is pressed, the scanner section starts scanning of images.
The light from the copy lamp is reflected by the document and passed through the lens to the CCD.
Photo signal/Electric signal conversion
3) The image is converted into electrical signals by the CCD circuit and passed to the MCU.
Image process
4) The document image signal sent from the CCD circuit is processed under the revised conditions and sent to the LSU (laser unit) as print data.
Electric signal/Photo signal (laser beam) conversion
5) The LSU emits laser beams according to the print data.
(Electrical signals are converted into photo signals.)
6) The laser beams are radiated through the polygon mirror and various lenses to the OPC drum.
Printing
7) Electrostatic latent images are formed on the OPC drum according to the laser beams, and the latent images are developed to be visible im-
ages (toner images).
8) Meanwhile the paper is fed to the image transfer section in synchronization with the image lead edge.
9) After the transfer of toner images onto the paper, the toner images are fused to the paper by the fusing section. The copied paper is discharged
9) After the transfer of toner images onto the paper, the toner images are fused to the paper by the fusing section. The copied paper is discharged
onto the exit tray.
Operation
section
Scanner section
CCD
MCU (Main control/image process section)
PCL control
PCL I / F
PC
Laser beam
Paper exit
Fusing section
Paper transport section
Manual paper
feed section
Cassette paper
feed section
Printer section
LSU (Laser unit)
Laser diode, Polygon mirror lens
Laser diode, Polygon mirror lens
Process section
DM-1505
6 – 1
2. Scanner section
A. How to scan documents
The scanner has sensors that are arranged in a line. These sensors scan a
certain area of a document at a time and deliver outputs sequentially. When
the line is finished, the next line is scanned, and this procedure is repeated.
The figure below shows the case where the latter two sections of an image
which are scanned are shown with solid lines and the former two sections
which are being transmitted are shown with dotted lines.
The direction of this line is called “main scanning direction,” and the scanning
direction “sub scanning direction.”
In the figure above, one line is divided into 4 sections. Actually, however, one
line is divided into thousands of sections. For scanning, the light receiving ele-
ment called CCD is used.
The basic resolution indicates the scanner capacity. The basic resolution is ex-
pressed in dpi (dot/inch) which shows the number of light emitting elements per
inch on the document.
The basic resolution of this machine is 400dpi.
In the sub scanning direction, at the same time, the motor that drives the op-
tical system is controlled to scan the image at the basic resolution.
certain area of a document at a time and deliver outputs sequentially. When
the line is finished, the next line is scanned, and this procedure is repeated.
The figure below shows the case where the latter two sections of an image
which are scanned are shown with solid lines and the former two sections
which are being transmitted are shown with dotted lines.
The direction of this line is called “main scanning direction,” and the scanning
direction “sub scanning direction.”
In the figure above, one line is divided into 4 sections. Actually, however, one
line is divided into thousands of sections. For scanning, the light receiving ele-
ment called CCD is used.
The basic resolution indicates the scanner capacity. The basic resolution is ex-
pressed in dpi (dot/inch) which shows the number of light emitting elements per
inch on the document.
The basic resolution of this machine is 400dpi.
In the sub scanning direction, at the same time, the motor that drives the op-
tical system is controlled to scan the image at the basic resolution.
B. Basic structure of scanner section
1
Copy lamp (Xenon lamp)
2
Reflector (light conversion plate)
3
No. 1 mirror
4
No. 2 mirror
5
No. 3 mirror
6
Lens
7
No. 2/3 mirror unit
8
Copy lamp unit
9
CCD
10
Mirror motor
11
MHPS (Mirror home position sensor)
The scanner unit performs scanning in the digital optical system.
The light from the light source (Xenon lamp) is reflected by a document and passed through three mirrors and reduction lenses to the CCD element
(image sensor) where images are formed. This system is known as the reduction image sensor system. Photo energy on the CCD element is con-
verted into electrical signals (analog signals). (Photo-electric conversion). The output signals (analog signals) are converted into digital signals (A/D
conversion) and passed to the MCU (main control/image process section). The resolution at that time is 400dpi.
The mirror unit in the scanner section is driven by the mirror motor.
The MHPS is provided to detect the home position of the copy lamp unit.
The light from the light source (Xenon lamp) is reflected by a document and passed through three mirrors and reduction lenses to the CCD element
(image sensor) where images are formed. This system is known as the reduction image sensor system. Photo energy on the CCD element is con-
verted into electrical signals (analog signals). (Photo-electric conversion). The output signals (analog signals) are converted into digital signals (A/D
conversion) and passed to the MCU (main control/image process section). The resolution at that time is 400dpi.
The mirror unit in the scanner section is driven by the mirror motor.
The MHPS is provided to detect the home position of the copy lamp unit.
(6)
(5)
(4)
(3)
(2)
(1)
(10)
(11)
(9)
(8)
(7)
1
2
3
4
5
5
4
3
2
1
Sub scanning direction
Sensor scanning area
Main
scanning
direction
scanning
direction
Original
Image data sent to the ICU PWB
To MCU PWB
3. Laser unit
The image data sent from the MCU (image process circuit) is sent to
the LSU (laser unit), where it is converted into laser beams.
the LSU (laser unit), where it is converted into laser beams.
A. Basic structure
The LSU unit is the writing section of the digital optical system.
The semiconductor laser is used as the light source, and images are
formed on the OPC drum by the polygon mirror and f
The semiconductor laser is used as the light source, and images are
formed on the OPC drum by the polygon mirror and f
θ lens, etc.
The laser beams are passed through the collimator lens, the cylindrical
lens, the polygon mirror, the f
lens, the polygon mirror, the f
θ lens, and the mirror to form images on
the OPC drum in the main scanning direction. The laser emitting PWB
is provided with the APC (auto power control) in order to eliminate fluc-
tuations in the laser power. The BF PWB works for measurement of the
laser writing start point.
is provided with the APC (auto power control) in order to eliminate fluc-
tuations in the laser power. The BF PWB works for measurement of the
laser writing start point.
(1)
(2)
(3)
(4)
(5)
: Laser beam
path for BF PWB
DM-1505
6 – 2
No.
Component
Function
(1)
Semiconductor laser
Generates laser beams.
(2)
Collimator lens
Converges laser beams in
parallel.
parallel.
(3)
Polygon mirror,
polygon motor
polygon motor
Reflects laser beams at a
constant rpm.
constant rpm.
(4)
BD (Mirror, lens,
PWB)
PWB)
Detects start timing of laser
scanning.
scanning.
(5)
f
θ lens
Converges laser beams at a
spot on the drum.
spot on the drum.
Makes the laser scanning
speeds at both ends of the
drum same as each other.
(Refer to the figure below.)
speeds at both ends of the
drum same as each other.
(Refer to the figure below.)
Makes the laser scanning speeds at both ends of the drum same as
each other.
each other.
B. Laser beam path
C. Composition
Effective scanning width:
216mm (max.)
Resolution:
600dpi
Beam diameter:
75um in the main scanning
direction, 80um in the sub scanning
direction
direction, 80um in the sub scanning
direction
Image surface power:
0.20
±0.03mW (Laser wavelength
780 – 795nm)
Polygon motor section:
Brushless motor 20.787rpm
No. of mirror surfaces: 6 surfaces
No. of mirror surfaces: 6 surfaces
4. Fuser section
A. General description
General block diagram (cross section)
Top view
(1) Heat roller
A pressure roller is used for the heat roller and a silicone rubber roller
is used for the lower heat roller for better toner fusing performance and
paper separation.
A pressure roller is used for the heat roller and a silicone rubber roller
is used for the lower heat roller for better toner fusing performance and
paper separation.
(2) Separator pawl
Three separator pawls are used on the upper heat roller. The separator
pawls are teflon coated to reduce friction with the roller and prevent a
smear on the paper caused by the separator pawl.
Three separator pawls are used on the upper heat roller. The separator
pawls are teflon coated to reduce friction with the roller and prevent a
smear on the paper caused by the separator pawl.
a
≠ b ≠ c
a
b
c
d = e = f
d
e
f
f
θ LENS
Heat roller
Thermistor
Thermal fuse
Heater lamp
Separator pawl
Separator pawl
PPD2
Thermal fuse
Thermistor
Heat roller
Paper guide
Pressure roller
DM-1505
6 – 3
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