Text preview for : AR150ESMLAG.pdf part of SHARP AR-150 Manual Servicio
Back to : AR150ESMLAG.part1.rar | Home
AR-150E
[1] GENERAL
1. Major functions
Item CPM Model AR-120E AR-150E 12CPM 15CPM SB SB SB/MB 2 Tray SPF R-SPF FAX GDI with USB GDI without USB Opt Opt PCL with USB SOPM Duplex
Descriptions of items CPM: Copy speed (Copies Per Minute) SB/MB: SB = Manual feed single bypass, MB = Manual feed multi bypass 2 tray: Second cassette unit. SPF: Original feed unit R-SPF: Duplex original feed unit FAX: FAX function. GDI with USB: GDI printer function with USB. GDI without USB: GDI printer function without USB. PCL with USB: PCL printer function with USB. SOPM: Scan Once Print Many function (Many copies are made by one scan.) Duplex: Auto duplex copy function Descriptions of table : Standard provision : No function or no option available
2. System Configuration
(AR-120E)
Options (AL-10PK/AL-11PK)
Printer board ... 1 Memory ... 1
(AR-150E)
Printer driver (CD-ROM) ... 1
Screwdriver ... 1
Screws ... 4
Operation manual ... 1
Interface cable ... 1 (for IBM PC/AT or compatible computers)
AR-150E, the memory has been already installed in the machine and is not supplied in the printer upgrade kit(AL-10PK). 1 1
AR-150E
[2] SPECIFICATIONS
1. Copy mode
A. Type
Type Desk-top
(1) Paper feed section of the copier
Paper feed size Paper feed capacity Detection Weight A4, B5, A5, 8.5" × 14", 8.5" × 11", 8.5" × 5.5" 250 sheets (56 80g/m2 equivalent) (15 21 lbs.) Paper empty detection available 56 80g/m2 (15 lbs. 21 lbs.) Recycled paper
B. Machine composition
AR-120E AR-150E 12 cpm / 1 tray / SB 15 cpm / 1 tray / SB / SOPM
Special paper
(2) Manual paper feed section
Paper feed size A4 A6, 11" × 17" 8.5" × 5.5" 1 sheets (Single bypass feed tray) Size detection not available, paper empty detection available 52 128g/m2 (14 34 lbs.) Recycled paper, OHP film, labels Paper feed capacity Detection Weight Special paper
(1) Option
Machine GDI printer expansion kit Model AL-10PK (for AR-150E) AL-11PK (AR-120E) Power supply Supplied by the copier. Supplied by the copier.
C. Copy speed
(1) Continuous copy speed (Sheets/min)
a. AR-120E Paper size AB system Inch system A4 B5 8.5" × 14" 8.5" × 11" Normal 12 12 10 12 Enlargement (200%) 12 12 10 12 Reduction (50%) 11 12 10 12
G. Multi copy
Max. number of multi copy 99 sheets
H. Warmup time
Warmup time Pre-heat Approx. 0 sec (Condition: Standard condition) Available
I. Copy magnification ratio
Fixed magnification ratio AB system: 50, 70, 81, 100, 141, 200% Inch system: 50, 64, 78, 100, 129, 200% 50 200%
b. AR-150E Paper size AB system Inch system A4 B5 8.5" × 14" 8.5" × 11" Normal 15 15 12 15 Enlargement (200%) 15 15 12 15 Reduction (50%) 15 15 12 15
Zooming
J. Print density
Density mode No. of manual adjustment Auto/Manual/Photo 5 steps (Manual/Photo)
D. First copy time
First copy time 9.6 sec
K. Void width
Void area Image loss Leading edge Lead edge 1 4mm, rear edge 4mm or less, both sides 4mm or less Same size: 3.0mm or less Enlarge: 1.5mm or less Reduction: 6.0mm or less
E. Document
Max. document size Document reference position Detection (Platen) B4, 10" × 14" Left side center None
L. Auto duplex
Standard/Option Not installable
F. Paper feed
Copy size (Max. Min.) Paper feed system (A4 A6) 8.5" × 14" 8.5" × 5.5" AR-120E AR-150E 1 cassette + Single manual paper feed
M. Paper exit/finishing
Paper exit section capacity Face down 100 sheets
2 1
AR-150E
N. Additional functions
Auto paper selection (APS) Auto magnification ratio selection Binding margin 1 set 2 copy Edge erase Center erase Cover insertion Index paper insertion OHP index paper insertion Job memory Auditor Key operator program Communication conformity Process control Toner save mode Pre-heat mode Auto power shut off mode No No No No No No No No No No No No No No Yes (Time setup/cancel can be made with the user simulation.) Yes (Time setup can be made with the user simulation.) Yes (Time setup/cancel can be made with the user simulation.)
S. Power consumption
Max. power consumption About 1.0KWh EnergyStar standard (The second level conformity) Pre-heat Auto power shut off About 40Wh 18wh
T. Digital performance
Resolution Reading Writing Gradation 400 dpi 600 dpi 256 gradations / 8 bits
U. Maintenance lamp
The maintenance lamp is provided in this model. (Not provided in the AL series)
O. Other specifications
Photoconductor type Photoconductor drum dia. Copy lamp Developing system Charging system Transfer system Separation system Fusing system Cleaning system OPC (Organic Photo Conductor) 30mm Xenon lamp Dry 2-component magnetic brush development Saw teeth charging (+) DC corotron () DC corotron Heat roller Contact blade
P. Package form
Body Body/Accessaries
Q. External view
External dimensions (W × D × H) Occupying area (W × D) Weight 292.6 × 518 × 445mm 607.6 × 445mm (AR-120E/150E) about 17.2 kg (AR-120E/150E)
R. Power source
Voltage Frequency AC110V/120V/127V/220V/230V/240V 50/60Hz common
2 2
AR-150E 5) Tilt the DV box unit and rotate the DV18T clockwise to remove developer. 11) Face the toner supply port of the TH box unit upward, and press and insert the refill hose into the toner supply port with the toner bottle kept straight up. · Hold the left side of the TH box with your hand. · Press and insert the refill hose completely.
6) Clean the DV box unit by sucking or blowing with a vacuum cleaner to remove developer from the MG roller and toner from the DV box unit. Check that there is no toner or no foreign material attached to the connector and the gear. 7) Shake the developer bottle 10 times up and down, and remove the bottle cap and supply developer into the DV box unit. · Slowly slant the bottle to supply developer evenly. · Check the label to insure that developer is suitable for the model.
12) Lift the toner bottle and shake it left and right and supply toner until the bottle and the filling hose are empty. · It takes about one minute to fill toner completely in TH BOX UN from lifting the toner bottle to emptying the bottle and the hose. · If toner remains in the hose, when removing the hose from TH BOX UN, the remaining toner may disperse. Use great care for that.
8) Install the THBOX unit. · Insert two bosses of TH box on the drive side into the positioning hole of the DV box and fix together. 9) Remove the toner cap, look into the toner supply port and stop the THD Mylar at the position shown in the figure below. (Rotate the THK gear on the rear side of the TH box counterclockwise to rotate the TM shaft.) 10) Shake the toner box 20 times up and down, and remove the bottle cap and install the refill hose. Check the label to insure that toner is suitable for the model.
13) Check that there is no toner remaining in the bottle and remove the hose, and slowly pull and remove the hose. (If there is any toner remaining in the bottle or the hose, perform toner supply again.) Bend the refill hose and remove it from the TH box unit without dispersing toner. Attach the toner cap. · Attach the toner cap with the toner supply port of the TH box unit faced upward. 14) Clean the DV box unit with alcohol and attach the DV blade. · After drying the unit, attach the DV blade. · After attachment, check that there is no scratch and waves on the DV blade. · After attachment, be careful not to damage the DV blade. · Check that there is no foreign material in the DV blade and the section.
0.5 0
0.5
0
15) Install the DVF cover to the DV-TH box unit. 16) Clean the waste toner box unit and install it to the DV box unit. (Check that there is no toner in the waste toner box) Be careful of the pawl.
3 3
AR-150E 17) Replace the IC connector. Check that there is no oil on the IC connector pins. (Do not touch with fingers.)
Put a white mark on the above position. At that time, put marking for checking of the number of refilling. 18) Check the operations of the DV lever and the toner box shutter. 19) Shake the DV box unit 5 times horizontally. Rotate the DV18T clockwise and check developer state on the MG roller. (Visually check that developer state is normal and there is no foreign material.) 20) Install the MG cover. Put the unit straight with the MG roller on the upper side. Rotate the DV18T several times forward and reverse to store developer on the MG roller into the inside. Check that there is no developer on the MG roller surface, and install the MG cover. Note: When attaching the MG cover, be careful not to wind around the DV blade.
Note for MG cover installation · When installing, check that there is no breakage and peel-off of the MG cover sheet and the MG cover molt attached to the MG cover. · Check that there is no winding into the DV blade, deformation and scratches of DV molt F and R.
3 4
AR-150E
[The reattachment procedure]
Remove the side sheets on the both sides of DV box unit. Clean the DV box unit with alcohol and reattach the side sheets F and R to the both sides.
0 .5 0 0 0 .5
0 .5
0
DV box unit F side
DV box unit R side
.Remove glue completely before reattaching. .After drying alcohol, attach the side sheet F,R.
Remove the DV molt F,R and DV molt and clean with alcohol. After attaching the DV molt F and R, attach the DV molt with the DV molt R edge as the reference.
DV molt F attachment reference (DV box edge) DV molt attachment 0 reference (DV box edge)
1
DV molt R attachment 0.5 reference (DV box edge)
0.5
0
DV molt attachment reference (DV box edge) 0.5
0
0.5 0 0
DV molt attachment reference (DV box edge)
.Do not allow clearance between DV molt and DV molt F. (Pull and attach them. Overlap may be allowed.) .Remove glue completely before reattaching. .After drying alcohol, attach the DV side sheet. When attaching the DV molt F, projection in the arrow direction is not allowed. When attaching the DV molt R, 0 projection in the arrow direction is not allowed. 0.5
0.5
0
0 0.5
0 0.5
3 5
0
0 .5
AR-150E
B. Drum unit
1) Check the external view. · Check for damage or cracks on the boss and the boss hole. · Check to insure that the waste toner pipe shutter slides smoothly. · Check to insure that the star ring and the CRU washer rotate smoothly.
3) Remove the drum fixing plate and the photoconductor drum. (Note) Dispose the drum fixing plate which was removed.
LO C K
(2)
(3)
4) Check the cleaning blade and the red felt for no damage. · If there is any damage, execute all procedures from item 5) and later. · If there is no damage, execute the procedure of item 12). 5) Remove the main charger. (Cleaning the screen grid and the sawteeth.)
2) Remove the drum cover. (4 Lock Tabs)
6) Remove the cleaning blade. Note: Dispose the cleaning blade which was removed.
3 6
AR-150E 7) Clean the cleaning section and the waste toner pipe to remove waste toner completely with a vacuum cleaner. 8) Remove the felt and duplex tape completely. Note: Be careful not to scratch or bend the sub blade. 9) Attach the cleaning blade. Securely insert the plate section of the cleaning blade into the dove and fix it with a screw. Do not touch the cleaning blade rubber with your hand. When attaching the cleaning blade, press the cleaning blade in the arrow direction and attach. 12) Attach the drum fixing plate and the photoconductor drum. Apply grease to the inside of the photoconductor drum. (Dia. 2)
10) Attach the felt.
Attach the drum from (b). (Prevention against the sub blade edge breakage) Attach the drum so that its position with the sub blade is as shown. 13) Attach the detection gear. Note: · The detection gear is not installed to the drum cartridge packed with the main body. Add a new one.
Attach the mocket with slightly pressing section A of the cleaning blade. Do not touch the tip of the cleaning blade. Do not put the mocket under the cleaning blade. Do not put the mocket on the sub blade. Do not press the sub blade with the mocket. 11) Attach the main charger. Securely set the MC holder on the projection of the process frame. Securely insert two projections of the MC holder into the groove in the process frame. When attaching the MC holder ass'y, be careful not to make contact with the cleaning blade.
14) Attach the drum cover. Note: After attaching the drum cover, do not make a copy. When attaching the drum cover, engage the detection gear 20T rib with the 30T gear rib, and attach the drum cover to the process frame. 15) Mark the number of times of recycling on the side of the cover with white paint. Max. times of recycling: 5 times
3 7
Note: Another method of cleaning the drum counter is available with SIM 24-07.
AL-1000/1010
[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES
1. Appearance
(1) (2)
(4)
(3)
(6) (7)
(8) (5) (9)
(10)
(11) (12) (13) (9)
(1) (4) (7) (10) (13)
Original table Operation panel Side cover open button Paper output tray Power switch
(2) (5) (8) (11)
Original cover Front cover Paper guides Paper output tray extension
(3) Side cover (6) Paper tray (9) Handle (12) Power cord socket
4-1
AL-1000/1010
2. Operational panel
(1) (2) (3) (4) (5) (6) (7) (8) (9)
200% 129% 100% 78% 64% 50%
MAX. 51/2 x 81/2 81/2 x11
100%
81/2 x14 81/2 x 11 81/2 x11 51/2 x 81/2 MIN.
ZOOM
(10)
(11)
(12)
(13)
(1) (4) (7) (10) (13) 1
Exposure mode selector key and indicators Copy ratio selector key and copy ratio indicators Display Zoom keys Print key and ready indicator
(2) (5) (8) (11)
Light and dark keys and exposure indicators Zoom indicator ON LINE indicator Copy quantity keys
(3) (6) (9) (12)
Alarm indicators1 Copy ratio display (%) key Power save indicator Clear key
Drum replacement required indicator When the drum counter reaches 17,000 copies, the indicator lights up. After 1,000 additional copies are made, the indicator starts blinking and machine will hard-stop (after current job) until a new cartridge is installed. Misfeed indicator TD cartridge replacement required indicator When toner density is lower than a specified level, the TONER DEVELOPER CARTRIDGE REPLACEMENT indicator lights up to warn the user. If toner is not added after approximately 10 sheets are copied, the indicator starts blinking and machine starts to supply toner.(Toner Developer cartridg replacement indicator keeps lighting up) If toner density is not back to specific level after two minutes, the READ indicator goes out and Toner Developer indicator starts blinking, and the copier stops. 2 ON: Indicates that the machine is in the energy saving (pre-heat) mode. Blink: Indicates that the machine is in the process of resetting from the energy saving mode or just after supplying the power. OFF: Indicates that resetting from the energy saving mode is completed and that the fusing temperature is in ready state. The combinations of the above display lamps are as follows: (q = ON, ! = OFF) Lamp Pre-heat lamp Ready lamp Other lamps Immediately after power ON Blink q q Ready ! q q Copying ! ! q Copy is started during resetting from energy saving mode Blink ! q
Lamp Pre-heat lamp Ready lamp Other lamps
Energy saving mode (Preheating) q q q
Energy saving mode (Auto power shut off) q ! !
Resetting from energy saving mode Blink q q
4-2
AL-1000/1010
3. Internal
(1)
(3)
(2)
(4)
(5) (6) (7)
(8)
(1) (4) (7)
TC cartridge lock release button Drum cartridge handle Charger cleaner
(2) (5) (8)
TD cartridge Paper feed roller Transfer charger
(3) (6)
Drum cartridge Fusing unit release lever
4-3
AL-1000/1010
4. Motors and solenoids
(3)
(2)
(4)
(1)
(5)
(7) (6)
No. (1) (2) (3) (4) (5) (6) (7) Main motor Mirror motor Toner motor
Part name MM
Control signal MRMT TM VFM RRS CPFS1 MPFS
Function,operation Drives the copier. Drives the optical mirror base (scanner unit). Supplies toner. Cools the optical section. Resist roller rotation control solenoid Cassette Paper feed solenoid Multi manual pages feed solenoid
Cooling fan motor Resist roller solenoid Paper feed solenoid Multi paper feed solenoid
4-4
AL-1000/1010
5. Sensors and switches
(1)
(2)
(3)
(4)
(5) (6) (9) (8)
No. (1) (2) (3) (4) (5) (6) Name Mirror home position sensor POD sensor PPD2 sensor Cassette detection switch Manual feed detection switch PPD1 sensor Signal MHPS POD PPD2 CED1 MFD PPD1 Type Transmission sensor Transmissions sensor Transmission sensor Microswitch Transmission sensor Transmission sensor
(7)
Function Mirror (scanner unit) home position detection Paper exitdetection Paper transport detection 2 Cassette installation detection Manual feed paper detection (single only) Paper transport detection 1 Door open/close detection (safety switch for 5V) Door open/close detection (safety switch for 24V) New drum detection switch Output "H" at home position "H" at paper pass "L" at paper pass "H" at cassette insertion "L" at paper detection "L" at paper pass 1 or 0V of 5V at door open 1 or 0V of 24V at door open Instantaneously "H" at insertion of new drum
(7)
Door switch
DSW
Micro switch
(8)
Door switch
DSW
Micro switch
(9)
Drum reset switch
DRST
Micro switch
4-5
AL-1000/1010
6. PWB unit
(1)
(2) (5) (8) (6)
(4)
(3) (7)
No. (1) (2) (3) (4) (5) (6) (7) (8) Main PWB (MCU) Operation PWB Power PWB CCD sensor PWB LSU motor PWB TCS PWB LSU PWB
Name Exposure lamp invertor PWB Copier control Operation input/display
Function Exposure lamp (Xenon lamp) control
AC power input, DC voltage control, High voltage control For image scanning For polygon motor drive For toner sensor control For laser control
4-6
AL-1000/1010
7. Cross sectional view
(2)
(1)
(5) (3) (4)
(6)
(7) (8) (9) (10) (11)
(15)
(14) (13)
(12)
No. (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15)
Part name Scanner unit Exposure lamp Lens unit LSU (Laser unit) Paper exit roller Main charger Heat roller Pressure roller Drum Transfer unit Pickup roller Manual paper feed tray Manual paper feed roller PS roller unit Paper feed roller
Function and operation Illuminates the original with the copy lamp and passes the reflected light to the lens unit (CCD). Exposure lamp (Xenon lamp) Illuminates original Scans the original image with the lens and the CCD. Converts the original image signal into laser beams and writes onto the drum. Roller for paper exit Provides negative charges evenly to the drum surface. Fuses toner on the paper. (Teflon roller) Fuses toner on the paper. (Silicon rubber roller) Forms images. Transfers images onto the drum. Picks up the manual feed paper. (In multi feed only) Tray for manual feed paper Transport the paper from the manual paper feed port. Takes synchronization between the lead edge and the rear edge of the paper. Picks up a sheet of paper from the cassette.
4-7
AL-1000/1010
[5] UNPACKING AND INSTALLATION
1. A WORD ON COPIER INSTALLATION
Improper installation may damage the copier. Please note the following during initial installation and whenever the copier is moved. Do not install your copier in areas that are: q damp, humid, or very dusty
q subject to extreme temperature or humidity changes, e.g., near an air conditioner or heater.
Be sure to allow the required space around the machine for servicing and proper ventilation.
q exposed to direct sunlight
8"(20cm) 8"(20cm)
4" (10cm)
4" (10cm)
q poorly ventilated
2. CHECKING PACKED AND ACCESSORIES
COMPONENTS
Open the carton and check if the following components and accessories are included.
Power cord
Operation manual TD cartridge Copier
Drum cartridge (installed in copier)
5-1
AL-1000/1010
3. UNPACKING
Unpack the copier and carry it to the installation location by holding the handles on both sides of the copier.
(2) Remove the CAUTION tape from the front cover and remove the two protective pins from the fusing unit by pulling the strings upward one at a time.
CAUTION tape
Protective pins
(3) Push gently on both sides of the front cover to open the cover.
4. REMOVING MATERIALS
PROTECTIVE
PACKING
(1) Remove pieces of tape (a), (b), (c), (d), (e), (f), (g) and (h) and protective cover (i). Then open the original cover and remove protective materials (j) and (k).
c a e f d g h
b
(4) Remove the TD cartridge from the bag. Remove the protective paper. Hold the cartridge on both sides and shake it horizontally four or five times.
(2) Use a coin (or suitable object) to remove the screw. Store the screw in the paper tray because it will be used if the copier has to be moved.
(5) Hold the tab of the protective cover and pull the tab to your side to remove the cover.
5. INSTALLING THE TD CARTRIDGE
(1) Open the side cover while pressing the side cover open button. (6) Gently insert the TD cartridge until it locks in place, while pushing the lock button.
Lock button
5-2
AL-1000/1010
(7) Close the front cover and then the side cover by pressing the round projections near the side cover open button. (4) Adjust the paper guides on the paper tray to the copy paper width and length.Squeeze the lever of paper guide (A) a and slide the guide to match with the width of the paper. Move paper guide (B) to the appropriate slot as marked on the tray.
Paper guide (B)
Paper guide (A)
6. LOADING COPY PAPER (installing the paper tray)
(1) Raise the handle of the paper tray and pull the paper tray out until it stops.
(5) Fan the copy paper and insert it into the tray. Make sure the edges go under the corner hooks.
(6) Gently push the paper tray back into the copier.
(2) Remove the pressure plate lock. Rotate the pressure plate lock in the direction of the arrow to remove it while pressing down the pressure plate of the paper tray.
7. PLUGGING IN THE COPIER
(1) Ensure that the power switch of the copier is in the OFF position. Insert the attached power cord into the power cord socket at the rear of the copier. (3) Store the pressure plate lock which has been removed in step 2 and the screw which has been removed when unpacking (see page 5-2, step 2 of REMOVING PROTECTIVE PACKING MATERIALS) in the front of the paper tray. To store the pressure plate lock, rotate the lock to fix it on the relevant location.
Pressure plate lock Screw
(2) Plug the other end of the power cord into the nearest outlet.
5-3
AL-1000/1010
[6] Printing process
An OPC drum is used for the photoconductor. (Structure of the OPC drum layers) OPC layer (20microns thick) Pigment layer (0.2 to 0.3 microns thick) Aluminium drum
(1) Functional diagram
Main charger Laser beam Cleaning blade
MG roller
Drum
Transfer unit Resist roller
(Basic operation cycle)
Semiconductor laser
Focus correction lens
Main high voltage unit Exposure
Saw tooth
Charge
Toner
Drum Developing
Cleaning
Cleaning blade
Developer
Waste toner box
PS roller
To face down tray
Paper release
Fusing
Separation
Transfer
Synchronization with drum
Manual feed
Heat roller Heater lamp
Electrode
Transfer charger Transfer high voltage unit
Cassette paper feed
Print process
Paper transport route
6-1
AL-1000/1010
(2) Outline of print process
This printer is a non-impact printer that uses a semiconductor laser and electrostatic print process. This printer uses an OPC (Organic Photo Conductor) for its photoconductive material. First, voltage from the main corona unit charges the drum surface and a latent image is formed on the drum surface using a laser beam. This latent image forms a visible image on the drum surface when toner is applied. The toner image is then transferred onto the print paper by the transfer corona and fused on the print paper in the fusing section with a combination of heat and pressure. Step-1: Step-2: Step-3: Charge Exposure Latent image is formed on the drum. Developing Latent image formed on the drum is then changed into visible image with toner. Transfer The visible image (toner image) on the drum is transfered onto the print paper. Cleaning Residual toner on the drum surface is removed and collected by the cleaning blade. Optical discharge Residual charge on the drum surface is removed, by semiconductor laser beam.
Semiconductor laser
Exposure (semiconductor laser) OPC layer Pigment layer Aluminum drum
Step-4:
Drum surface charge sfter the exposure OPC layer Pigment layer Aluminum layer
Step-5:
Step-6:
Non-image area
Image area
(3) Actual print process
Step-1: DC charge
A uniform negative charge is applied over the OPC drum surface by the main charging unit. Stable potential is maintained by means of the Scorotron charger. Positive charges are generated in the aluminum layer.
Step-3: Developing (DC bias)
A bias potential is applied to the MG roller in the two component magnetic brush developing method, and the toner is charged negative through friction with the carrier. Non-image area of the drum surface charged with negative potential repel the toner, whereas the laser exposed portions where no negative charges exist, attract the toner. As a result, a visible image appears on the drum surface.
: Carrier (Magnetized particle) : Toner (Charge negative by friction) (N) (S) :Permanent magnet (provided in three locations)
(580V/400V)
About DC5.5KV
N S N
Step-2: Exposure (laser beam, lens)
A Laser beam is generated from the semiconductor laser and controlled by the print pattern signal. The laser writes onto the OPC drum surface through the polygon mirrors and lens. The resistance of the OPC layer decreases for an area exposed by the laser beam (corresponding to the print pattern signal). The beam neutralizes the negative charge. An electrostatic latent image is formed on the drum surface.
DC 400V ± 8V
MG roller
6-2
AL-1000/1010
Non-image area -600
Step-7: Optical discharge (Semiconductor laser)
Before the drum rotation is stopped, the semiconductor laser is radiated onto the drum to reduce the electrical resistance in the OPC layer and elimate residual charge, providing a uniform state to the drum surface for the next page to be printed. When the electrical resistance is reduced, positive charges on the aluminum layer are moved and neutralized with negative charges on the OPC layer.
Semiconductor laser
Transfer Discharge
Charge
Toner is attracted over the shadowed area because of the developing bias.
Step-4: Transfer
The visible image on the drum surface is transferred onto the print paper by applying a positive charge from the transfer corona to the backside of the print paper.
Step-5: Separation
Since the print paper is charged positively by the transfer corona, it is discharged by the separation corona. The separation corona is connected to ground.
Step-6: Cleaning
Toner remaining on the drum is removed and collected by the cleaning blade. It is transported to the waste toner collecting section in the cleaning unit by the waste toner transport roller.
Drum surface potential 0
-400 Developing bias Image area Residual potential (-50 to -100V)
Toner attract potential
Charge
Exposure
Developing
Time
Charge by the Scorotron charger Function
The Scorotron charger functions to maintain the surface potential of the drum even at all times which. It is used to control the surface potential regardless of the charge characteristics of the photoconductor.
Basic function
A screen grid is placed between the saw tooth and the photoconductor. A stable voltage is added to the screen grid to maintain the corona current on the photoconductor. As the photoconductor is charged by the saw tooth from the main corona unit, the surface potential increases. This increases the current flowing through the screen grid. When the photoconductor potential nears the grid potential, the current turns to flow to the grid so that the photoconductor potential can be maintained at a stable level.
About DC 5.2kV
Process controlling Function
The print pattern signal is converted into an invisible image by the semiconductor laser using negative to positive (reversible) developing method. Therefore, if the developing bias is added before the drum is charged, toner is attracted onto the drum. If the developing bias is not added when the drum is charged, the carrier is attracted to the drum because of the strong electrostatic force of the drum. To avoid this, the process is controlled by adjusting the drum potential and the grid potential of the Scorotron charger.
Basic function
Voltage added to the screen grid can be selected, high and low. To make it easily understood, the figure below shows voltage transition at the developer unit.
START 0 STOP
Print potentioal
Toner attract potential 2)
Developing bias
3)
1) Low
4)
High
Time
Drum potential
6-3
AL-1000/1010 Start
1) Because the grid potential is at a low level, the drum potential is at about 400V. (Carrier may not be attracted though the carrier is pulled towards the drum by the electrostatic force of 400V. 2) Developing bias ( 400V) is applied when the photoconductor potential is switched from LOW to HIGH. 3) Once developing bias (400V) is applied and the photo conductor potential rises to HIGH, toner will not be attracted to the drum.
Stop
The reverse sequence takes place. Retaining developing bias at an abnormal occurrence Function The developing bias will be lost if the power supply was removed during print process. In this event, the drum potential slightly abates and the carrier makes deposits on the drum because of strong static power. To prevent this, the machine incorporates a function to retain the developing bias for a certain period and decrease the voltage gradually against possible power loss. Basic function Normally, the developing bias voltage is retained for a certain time before the drum comes to a complete stop if the machine should stop before completing the normal print cycle. The developing bias can be added before resuming the operation after an abnormal interruption. Therfore, carrier will not make a deposit on the drum surface.
6-4
AL-1000/1010
[7] OPERATIONAL DESCRIPTIONS
(1) Outline of operation
The outline of operation is described referring to the basic configuration.
(Basic configuration)
Scanner section
Operation section
CCD
MCU (Main control/image process section)
LSU (Laser unit) Laser diode, Polygon mirror lens Laser beam
Paper exit Fusing section
Process section Printer section
Paper transport section
Cassette paper feed section
Manual paper feed section
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 images (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 onto the exit tray.
7-1
AL-1000/1010
(2) Scanner section
1) 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 element called CCD is used. The basic resolution indicates the scanner capacity. The basic resolution is expressed 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 optical system is controlled to scan the image at the basic resolution.
Main scanning direction
Sub scanning direction Sensor scanning area
Original
1 2 3
4
5
Image data sent to the ICU PWB
5 4 3 2 1
To MCU PWB
2) Basic structure of scanner section
(11)
(4)
(1)
(2)
(8)
(5)
1 4 7 10 Copy lamp (Xenon lamp) No. 2 mirror No. 2/3 mirror unit Mirror motor
(7)
2 5 8 11
(3)
(6)
(9) (10)
3 6 9 No. 1 mirror Lens CCD
Reflector (light conversion plate) No. 3 mirror Copy lamp unit 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 converted 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.
7-2
AL-1000/1010
(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.
2) Laser beam path
1) 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 lens, etc. The laser beams are passed through the collimator lens, the cylindrical lens, the polygon mirror, the f 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 fluctuations in the laser power. The BF PWB works for measurement of the laser writing start point.
(3) (2) (1)
(4)
3) Composition
: Laser beam path for BF PWB
Effective scanning width: 216mm (max.) Resolution: Beam diameter: 600dpi 75um in the main scanning direction, 80um in the sub scanning direction 0.20 ±0.03mW (Laser wavelength 780 795nm) Brushless motor 20.787rpm No. of mirror surfaces: 6 surfaces
(5)
Image surface power: No. (1) (2) (3) (4) Component Semiconductor laser Collimator lens Polygon mirror, polygon motor BD (Mirror, lens, PWB) Function Generates laser beams. Converges laser beams in parallel. Reflects laser beams at a constant rpm. Detects start timing of laser scanning. Converges laser beams at a spot on the drum. (5) f lens Makes the laser scanning speeds at both ends of the drum same as each other. (Refer to the figure below.) Polygon motor section:
Makes the laser scanning speeds at both ends of the drum same as each other.
abc
a b c
d=e=f
d e f
f LENS
7-3
AL-1000/1010
Fuser section
B. 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.
C. Thermal control
1. The heater lamp, thermistor, main PWB, DC power supply PWB, and triac within the power supply unit are used to control the temperature in the fuser unit. To prevent against abnormally high temperature in the fuser unit, a thermal breaker and thermal fuse are used for safety purposes.
Hea ted by the hea terlam p. (950W ) Safetydev ice (therma l b reaker, therm al fus e)
1. General description
General block diagram (cross section)
Thermal fuse Separator pawl PPD2
Triac (in the power supply unit)
The surface te mperature of the upp erheat roller is sensed bythe th ermisto r.
Level of the thermistor is controlled by the main PWB.
With th e signal f om the r main PWB, the triac is controlled on and o ff. (power supply PWB )
Thermistor Pressure roller Heat roller
2. The surface temperature of the upper heat roller is set to 165°C 190°C. The surface temperature during the power save mode is set to 100°C. 3. The self-check function comes active when one of the following malfunctions occurs, and an "H" is displayed on the multicopy window. a. When the heat roller surface temperature rises above 240°C. b. When the heat roller surface temperature drops below 100°C during the copy cycle. c. Open thermistor d. Open thermal fuse e. When the heat roller temperature does not reach 190°C within 27 second after supplying the power.
Paper guide
Top view
Heat roller Thermistor Thermal fuse Heater lamp
D. Fusing resistor
Separator pawl
A. 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.
Fusing resistor This model is provided with a fusing resistor in the fusing section to improve transfer efficiency. General descriptions are made in the following. General descriptions Since the upper heat roller is conductive when copy paper is highly moistured and the distance between the transfer unit and the fusing unit is short, the transfer current leaks through the copy paper, the upper heat roller and the discharging brush.
7-4
AL-1000/1010
Paper feed section and paper transport section
1. Paper transport path and general operations
(2)
(1)
(5) (3) (4)
(6)
(7) (8) (9) (10) (11)
(15)
(14) (13)
(12)
(1) (2) (3) (4) (5)
Scanner unit Copy lamp Lens unit LSU (Laser unit) Paper exit roller
(6) (7) (8) (9)
Main charger Heat roller Pressure roller Drum
(11) Pickup roller (12) Manual paper feed tray (13) Manual paper feed roller (14) PS roller unit (15) Paper feed roller
(10) Transfer unit
Paper feed is made in two ways; the tray paper feed and the manual paper feed. The tray is of universal-type, and has the capacity of 250 sheets. The front loading system allow you to install or remove the tray from the front cabinet. The general descriptions on the tray paper feed and the manual paper feed are given below.
A. Cassette paper feed operation
1. The figure below shows the positions of the pick-up roller, the paper feed clutch sleeve, and the paper feed latch in the initial state without pressing the COPY button after lighting the ready lamp. The paper feed latch is in contact with the projection of the clutch sleeve. 2. When the COPY button is pressed, the main drive motor starts rotating to drive each drive gear. The pick-up drive gear also is driven at that time. Since, however, the paper feed latch is in contact with the projection of the clutch sleeve, rotation of the drive gear is not transmitted to the pick-up roller, which does not rotate therefore.
PFS OFF
RRS OFF
7-5
AL-1000/1010
3. After about 0.1 sec from when the main motor start rotating, the tray paper feed solenoid (PFS) turns on at a moment. This disengages the paper feed latch from the projection of the clutch sleeve, transmitting rotation of the pick-up drive gear to the paper feed roller shaft, rotating the pick-up roller to feed the paper. 6. To release the resist roller, the tray paper feed solenoid and the resist solenoid are turned on by the paper start signal to disengage the resist start latch from the clutch sleeve projection, transmitting rotation of the resist drive gear to the resist roller shaft. Thus the paper is transported by the resist roller. 7. After the resist roller starts rotating, the paper is passed through the pre-transfer guide to the transfer section. Images are transferred on the paper, which is separated from the OPC drum by the drum curve and the separation section.
PFS OFF
RRS OFF
PFS
4. After more than half rotation of the pick-up roller, the paper feed latch is brought in contact with the projection of the clutch sleeve, stopping rotation of the pick-up roller. 5. At this time, the paper is fed passed the paper entry detection switch (PPD1), and detected by it. After about 0.15 sec from detection of paper by PPD1, the tray paper feed solenoid (PFS) turns on so that the clutch sleeve projection comes into contact with the paper feed latch to stop the pick-up roller. Then the pick-up roller rotates for about 0.15 sec so that the lead edge of the paper is evenly pressed on the resist roller, preventing against skew feeding.
RRS ON
OFF
8. The paper separated from the drum is passed through the fusing paper guide, the heat roller (fusing section), POD (paper out detector) to the copy tray.
PFS ON
RRS OFF
7-6
AL-1000/1010 B. Manual multi paper feed operation
1. Before paper feed operation, the manual paper feed solenoid (MPFS) is turned OFF as shown in the figure below. 3. When pawl C of the manual paper feed clutch sleeve is hung on the manual feed latch, the manual feed stopper falls and the manual take-up roller rises. At that time, the manual paper feed roller is rotating.
C
A
C
A
OFF MPFS
2. When the PRINT button is pressed, the manual paper feed solenoid (MPFS) turns on to disengage the manual paper feed latch A from the manual paper feed clutch sleeve A, rotating the manual paper feed roller and the manual takeup roller. At the same time, the manual paper feed stopper opens and the manual take-up roller is pressed to the surface of the paper to start paper feeding.
ON MPFS
4. The lead edge of the transported paper is pressed on the resist roller by the transport roller. Then the paper is stopped temporarily to make synchronization with the lead edge of the image on the OPC drum. The operations hereinafter are the same as the paper feed operations from the tray. (Refer to A-5 8.)
C A
ON MPFS
7-7
AL-1000/1010
5. The solenoid turns off to close the gate and return to the initial state.
Process unit new drum detection mechanism
1. When the power is turned on, the detection gear 38T is rotated in the arrow direction by the detection gear 20T to push the microswitch (process detection switch) installed to the machine sensor cover, making a judgement as a new drum.
Gear 20T
Gear 38T
A C
Process detection switch
OFF MPFS
C. Conditions of occurrence of paper misfeed
(1) When the power is turned on: PPD or POD is ON when the power is turned on. (2) Copy operation a. PPD1 jam 1) PPD1 does not turn off within 4 sec after turning on the resist roller. b. PPD2 jam 1) PPD2 is off immediately after turning on the resist roller. 2) PPD2 does not turn off within 1.2 sec after turning off the resist roller. c. POD jam 1) POD does not turn on within 2.9 sec after turning on the resist roller. 2) POD does not turn off within 1.5 sec 2.7 sec after turning off PPD2.
2. When the detection gear 38Y turns one rotation, there is no gear any more and it stops. The latch section of the 38T gear is latched and fixed with the projection of the process cover.
Gear notch
Gear pawl Projection Gear notch
Projection Gear pawl
7-8
AL-1000/1010
[8] DISASSEMBLY AND ASSEMBLY
Before disassembly, be sure to disconnect the power cord for safety. The disassembly and assembly procedures are described for the following sections: 1. High voltage section 2. Operation panel section 3. Optical section 4. Fusing section 5. Tray paper feed/transport section 6. Manual paper feed section 7. Rear frame section 8. Power section
(2) Push up the lock pawls (2 positions) of the side cover, and remove the transfer charger.
Lock pawl rear
1)
1. High voltage section
A. List
No. 1 2 Part name Ref. Transfer charger unit Charger wire page 8-1 8-1
B. Disassembly procedure
(1) Press the side cover open/close button and open the side cover.
Transfer charger
2)
1)
Lock pawl front
C. Assembly procedure
For assembly, reverse the disassembly procedure.
1) 2)
8-1
AL-1000/1010 D. Charger wire cleaning
(1) Remove the charger cleaner from the manual paper feed unit.
E. Charger wire replacement
(1) Remove the TC cover and remove the screw. (2) Remove the spring and remove the charger wire. (3) Install a new charger wire by reversing the procedures (1) and (2). At that time, be careful of the following items. q The rest of the charger wire must be within 1.5mm. q The spring hook section (charger wire winding section) must be in the range of the projection section. q Be careful not to twist the charger wire.
3)
1)
1)
Charger wire
(2) Set the charger cleaner to the transfer unit, and move it reciprocally a few times in the arrow direction shown in the figure below.
1)
2)
3)
4)
2) 1)
1mm
Protrusion
1.5mm
8-2
AL-1000/1010
2. Operation panel section
A. List
No. 1 2 Part name Ref. Operation panel unit Operation PWB page 8-3 8-3
C. Assembly procedure
For assembly, reverse the disassembly procedure
3. Optical section
A. List
NO. 1 2 3 Part name Ref. Copy lamp unit Copy lamp Lens unit page 8-4 8-4 8-4
B. Disassembly procedure
(1) Remove the screws (4 pcs.), the harness, and the operation panel unit.
1) 1) 2) 3) 1)
B. Disassembly procedure
(1) Remove the parts as shown below.
1)
(2) Remove the screws (3 pcs.) and the PWB holder. (3) Remove the screws (3 pcs.) and the operation PWB.
1)
2)
1)
9) 7)
Hook
10) 6) 3)
3)
4)
5)
8)
3)
2)
3)
4)
1)
2) 3)
Note that there are 13 pawls
8-3
AL-1000/1010
(2) Remove the screws (2pcs.), and remove the copy lamp unit from the mirror base drive wire. (5) Remove the screws (2 pcs.), the harness, and the optical unit. 1)
4) 3) 2) 5)
2) 3) 1)
2) 3)
When installing the lens unit, refer to "9-7. Lens unit installation reference."
C. Assembly procedure
4) 4)
(3) Pull the copy lamp unit toward you to remove the harness.
2)
3) 1)
Basically reverse the disassembly procedure. The mirror base drive wire and the lens drive wire stretching methods are described below. a. Mirror base drive wire stretching 1. Hook the metal fixture of the mirror base drive wire on the projection of the optical base plate. 2. Pass the wire through the external groove of the double pulley. (At that time, check that No. 2/3 mirror unit is in contact with the mirror base positioning plate.) 3. Hold so that the winding pulley groove is up, and wind the mirror base drive wire 9 turns. 4. Put the 8th turn of the mirror base drive wire in the winding pulley groove and fix with a screw. 5. Pass the wire under Mo. 2/3 mirror unit plate and wind it around pulley A. 6. Pass the wire through the internal groove of the double pulley, and pass through pulley B. 7. Hook the spring hook on the optical base plate.
6 2 5 7
Wind closely
7 6
2
6 6
3 6
(4) Remove the screw (4 pc) and remove the cover.
5 2 6 1 3
1
Wind closely
4 2
After installing the mirror base drive wire, be sure to perform main scanning direction image distortion adjustment. 8-4
AL-1000/1010
4. Fusing section
A. List
No. 1 2 3 4 5 Part name Ref. Thermistor PPD2 sensor Heater lamp Pressure roller Heat roller page 8-5 8-5 8-6 8-5 8-5
(4) Remove the screw and remove the U-turn guide.
1)
2)
B. Disassembly procedure
(1) Remove the connectors (3 pcs.) of the rear cabinet. (2) Open the side cover, remove two screws, and remove the fusing unit.
Pressure roller section disassembly
(5) Remove the three screws, remove the fusing cover lower on the right side, and open the heat roller section.
2) 3)
1)
4) 6)
5)
1)
5)
3) 2)
6)
(6) Remove the screw and remove the PPD2 sensor.
1)
2)
(3) Cut the binding band, remove the screw, and remove the thermistor.
1)
2)
PPD2 sensor
2)
Thermistor
3)
8-5
AL-1000/1010
(7) Remove the plate spring on the right and remove the heater lamp. (10) Remove the pressure release levers on the right and the left sides.
1)
1)
1)
2)
Hearter lamp
(11) Remove the pressure roller, the pressure bearing, and the pring. Note: Apply grease to the sections specified with V.
V
(8) Remove the spring and remove the separation pawls (3 pcs.).
3)
3) 1) 2)
Pressure roller
V
1)
2)
3)
2)
Heat roller disassembly (Continued from procedure (4).)
1)
(5) Remove screws, remove the fusing cover, and open the heat roller section.
(9) Remove the E-ring and remove the reverse gate.
3)
3)
2)
1) 2)
1)
2)
3)
8-6
AL-1000/1010
(6) Remove the C-ring and the fusing bearing, and remove the heat roller.
1) 2) 3)
Heat roller
5. Tray paper feed/transport section
A. List
No. 1 2 3 4 Part name Ref. PPD1 sensor PWB LSU unit Intermediate frame unit Paper feed roller page 8-11 8-10 8-10 8-11
B. Disassembly procedure
(1) Remove six connectors and screws of the main PWB, and lift the optical unit and the main PWB to remove.
2) 2)
2)
(7) Remove the parts from the heat roller. Note: Apply grease to the sections specified with V.
2)
V
3) 1)
V 3) 2) 1)
1)
(8) Remove two screws and remove the thermo unit.
(2) Remove the PWB insulation mylar and remove the paper transport detection sensor (PPD2).
1) 2)
2)
1)
3)
3)
C. Assembly procedure
For assembly, reverse the disassembly procedure.
8-7
AL-1000/1010
(3) Remove two screws and remove the toner motor. (5) Remove the pulleys on the both sides and remove the paper exit roller.
2)
3) 1)
1)
4)
(4) Remove two springs and open the intermediate frame unit.
1)
2)
2)
(6) Pull out the paper exit roller knob and remove the belt.
2)
1)
8-8
AL-1000/1010
(7) Release the belt pulley (a) lock and remove the belt pulley bearing.
3) 2)
(9) Remove the harness guide.
(10) Remove five screws and remove the main drive plate and the belt.
2)
1)
(8) Remove the paper exit roller.
1)
1)
3)
CAUTION:Attach the gears securely
8-9
AL-1000/1010
(11) Remove the parts as shown below, and remove the pressure release solenoid and the paper feed solenoid. (13) Remove two screws and remove the fusing connector. (14) Remove five screws and the connector, and lift the intermediate frame unit to remove.
3)
3)
4)
4) 2)
1)
2)
1) 4) 2)
2)
3)
1)
(12) Remove six screws and remove the LSU unit.
(15) Remove the screw and the E-ring, and remove the PS semi-circular earth plate and the PS roller unit. (16) Remove the E-ring and remove the spring clutch from the PS roller unit.
5)
2) 1)
4)
1)
PS roller unit
4)
PS semi-circuler earth plate
2)
1)
3)
8-10
AL-1000/1010
(17) Remove three screws and remove the TC front paper guide.
1)
5)
(19) Remove two E-rings and remove the paper feed roller. (20) Remove three E-rings and remove the clutch unit.
Back
Clutch unit
4)
2)
Paper feed roller
4)
3)
Front
(18) Remove the screw and the connector, and remove the PPD1 sensor PWB.
1)
1)
2)
2)
C. Assembly procedure
For assembly, reverse the disassembly procedure.
8-11
AL-1000/1010
6. Manual paper feed section
A. List
No. 1 2 3 4 Part name Ref. Manual transport roller Cassette detection switch PPD1 sensor PWB Side door detection unit page 8-15 8-13 8-13 8-12
(2) Remove the screw and remove the side door detection unit.
B. Disassembly procedure Single unit
(1) Remove the screw and remove the single upper cover.
1)
2) 1)
Back
Wire treatment
2)
(3) Remove three screws and remove the single manual feed upper frame.
1)
1)
2)
8-12
AL-1000/1010
(4) Remove the PPD1 sensor PWB. (6) Remove the cassette detection switch.
1)
3)
1) 3)
2)
3)
2)
Wire treatment
Wire treatment
(5) Remove the E-ring and remove the manual paper feed transport roller. (7) Remove the multi cover.
4)
Multi cover
3)
1)
3)
1)
2)
8-13
AL-1000/1010 Multi unit
(1) Remove the screw and remove the multi upper cover. (3) Remove three screws and remove the multi paper feed upper frame.
1)
1)
1)
2)
2)
(4) Remove two screws and remove the multi feed bracket unit from the multi paper feed upper frame.
2)
(2) Remove the screw and remove the side door detection unit.
Orange Red
1) 1)
2) 1)
2)
Back
Wire treatment
8-14
AL-1000/1010
(5) Remove three E-rings and remove the manual paper feed roller B9. (7) Cut the binding band and remove the multi paper feed solenoid.
1)
1)
1)
1)
3)
2)
Multi paper feed solnoid
3)
2)
L OCK
T O
(6) Remove the pick-up roller.
K
C. Assembly procedure
For assembly, reverse the disassembly procedure.
D. Pressure plate holder attachment
1)
(1) Attach the pressure plate holder so that the resin section is not covered with the seal M1-N.
Seal M1-N
2)
Attachment reference
Pressure plate holder
Attachment reference
8-15
AL-1000/1010
7. Rear frame section
A. List
No. 1 2 3 Part name Ref. Mirror motor Main motor Exhaust fan motor page 8-16 8-16 8-16
(3) Remove two screws and one harness, and remove the main motor.
B. Disassembly procedure
(1) Remove three screws and remove the rear cabinet.
1)
3)
1) 2)
1)
2)
1)
(4) Remove two screws and one connector, and remove the exhaust fan motor.
(2) Remove two screws, the harness, and the mirror motor.
1)
3)
1)
3)
2)
2)
C. Assembly procedure
For assembly, reverse the disassembly procedure.
8-16
AL-1000/1010
8. Power section
A. List
No. 1 Part name Ref. Power PWB page 8-17
C. Assembly procedure
For assembly, reverse the disassembly procedure.
B. Disassembly procedure
(1) Remove two screws and one connector, and remove the power PWB.
2)
1)
3)
2)
8-17
AL-1000/1010
[9] Adjustment
1. Optical section
(1) Image distortion adjustment
There are following two types of image distortion. q Horizontal image distortion q Vertical image distortion In this machine, the image distortion is adjusted by changing the parallelism of mirrors (copy lamp unit, No. 2/3 mirror unit).
IV. Adjustment procedure 1) Remove the right cabinet (manual paper feed unit), the document reference plate. 2) Remove the document glass.
a. Horizontal image distortion adjustment
I. Summary Parallelism of mirrors can be made by installing the copy lamp unit and No. 2/3 mirror unit to the reference position. However, it must be checked by making a copy, and must be adjusted if necessary. II. Cases when the adjustment is required 1) When the copy lamp unit and No.2/3 mirror unit are disassembled or their part is replaced. 2) When the copy lamp unit and No.2/3 mirror unit drive section is disassembled or its part is replaced. 3) When the copy image is distorted as shown below: 3) Loosen the fixing screw of the copy lamp unit wire.
1)
2) 3)
Document
Copy A
Copy B
III. Necessary tools q Screwdriver (+) q Hex wrench q Scale q Test chart for distortion adjustment (Make a chart shown below by yourself.) Draw a rectangle on a paper (B4 or 8 1/2 × 14) as shown below. Be sure to make four right angles.
L
L
L
L = 10mm
L
Fixing Screws
4) Manually turn the copy lamp unit/No.2/3 mirror unit drive gear to bring No.2/3 mirror unit into contact with No.2/3 mirror unit positioning plate. When No.2/3 mirror unit makes contact with No.2/3 mirror unit positioning plate in the rear frame side simultaneously, the mechanical parallelism of No.2/3 mirror unit is proper. If one side of No.2/3 mirror unit makes contact with No.2/3 mirror unit positioning plate and the other side does not, the parallelism is improper. If the parallelism is improper, perform the procedure of step 5).
9-1
AL-1000/1010
7) Manually turn the copy lamp unit/No.2/3 mirror unit drive gear to bring No.2/3 mirror unit into contact with the positioning plate, and perform the procedure of step 4). Repeat procedures of steps 4) to 7) until the parallelism of No.2/3 mirror unit is properly set. 8) With No.2/3 mirror unit positioning plate in contact with No.2/3 mirror unit, bring the copy lamp unit into contact with the right frame and fix the copy lamp unit to the drive wire. Procedures 1) to 8) are for adjustment of mechanical horizontal parallelism. The copy lamp unit and No.2/3 mirror are fixed to the specified positions and the mechanical horizontal parallelism of No.2/3 mirror is adjusted. Then the optical horizontal parallelism must be adjusted in the following procedures.
Copy lamp unit projection
5) Loosen the copy lamp unit/No.2/3 mirror unit drive pulley setscrew in the side where No.2/3 mirror unit does not make contact with No.2/3 mirror unit positioning plate.
Set screw
Scanner unit drive pulley
9) Set the image distortion check chart on the document table, and make a reduction copy (75%) on an A4 or 11 × 8 1/2 paper with the document cover open.
6) Without moving the copy lamp unit/No.2/3 mirror unit drive pulley shaft, manually turn the copy lamp unit/No.2/3 mirror unit drive pulley in the same direction of the loosened setscrew. When it makes contact with No.2/3 mirror unit positioning plate, tighten and fix the setscrew.
50mm
Image distortion check chart
9-2
AL-1000/1010
10) Check the horizontal image distortion. If LL = LR, there is no horizontal distortion
LL and LR: Distance between the copy image horizontal line and the edge of the black LR background. Black background
b. Vertical image distortion adjustment
I. Summary In this adjustment, the left and right balance is adjusted by changing the left and right balance of the No. 2 scanner unit frame on the front frame side. II. Note q Horizontal image distortion adjustment III. Cases when the adjustment is required 1) When the copy lamp unit/No.2/3 mirror unit drive section is disassembled or its part is replaced. 2) When the copy image is distorted as follows:
LL
11) If LL is not equal to LR, perform the following procedure. Loosen the setscrew of the copy lamp unit/No.2/3 mirror unit drive pulley in the front or the rear frame.
Document
Copy C
Copy D
Set screw
IV. Necessary tools q Screwdriver (+) q Screwdriver () q Scale q Test chart for distortion adjustment (Make by yourself.) Draw a rectangle on A4 or 8 1/2 × 11 paper as shown below: Be sure to make four right angles.
L
Scanner unit drive pulley
12) Without moving the copy lamp unit/No.2/3 mirror unit drive pulley shaft, manually turn the copy lamp unit/No.2/3 mirror unit drive pulley whose setscrew was loosened, and adjust the parallelism of copy lamp unit/No.2/3 mirror unit.
L
L
L = 10mm
L
V. Adjustment procedure 1) Set the test chart for image distortion adjustment on the document glass, and make a normal copy on a paper of A4 or 8 1/2 × 11. 2) Check image distortion in the right and the left sides. If the both vertical lines are in parallel with each other, the right-left distortion balance is proper. (However, there may be some distortion.) 2) If all the four angles are right angles, there in no distortion and the following procedures are not required.
Greater distortion
Smaller distortion
13) Tighten the set screw of the copy lamp unit/No.2/3 mirror unit drive pulley. 14) Check the image distortion in the same manner as step 10). Repeat procedures 11) to 14) until horizontal image distortion is eliminated.
9-3
AL-1000/1010
3) If the right-left distortion balance is improper, loosen the fixing screw of No.2/3 mirror unit rail to change and adjust the right-left balance of No.2/3 mirror unit rail.
a. Outline
The main scanning (front/rear) direction magnification ratio adjustment is made automatically or manually. Automatic adjustment: The width of the reference line marked on the shading correction plate is scanned to perform the main scanning (front/rear) direction magnification ratio adjustment automatically. Manual adjustment: The adjustment is made by manual key operations. (In either of the automatic and manual adjustments, the zoom data register set value is changed for adjustment.) The magnification ratio in the sub scanning direction is adjusted by changing the mirror base (scanner) scanning speed.
b. Main scanning direction magnification ratio adjustment
I. Note Before performing this adjustment, the following adjustments must have been completed. If not, this adjustment cannot be performed properly. q Image distortion adjustment q The lens unit must be installed in the reference position. II. Cases when the adjustment is required 1) When the lens and the mirror unit are disassembled or the part is replaced. 2) When the copy lamp unit/No.2/3 mirror unit drive section is disassembled or the part is replaced. 3) When the main PWB is replaced. 4) When the EEPROM in the main PWB is replaced.
Change the height of the right side of the rail.
(Note) If the distortion in the lead edge side (when viewed in the paper transport direction) is greater, change the height of the left rail of No.2/3 mirror unit. If the distortion in the rear edge side (when viewed in the paper transport direction) is greater, change the height of the right rail of No.2/3 mirror unit.
5) When "U2" trouble occurs. 6) When the copy image distortion adjustment is performed. III. Necessary tools q Screwdriver (+) q Scale IV. Adjustment procedure 1) Set the scale vertically on the document table. (Use a long scale for precise adjustment.)
Change the height of the left side of the rail.
4) Make a copy to check the vertical image distortion. If the four angles are right angles, the adjustment is completed.
(2) Copy magnification ratio adjustment
The copy magnification ratio must be adjusted in the main scanning direction and in the sub scanning direction. To adjust, use SIM 48-1.
9-4
AL-1000/1010
2) Set the copy magnification ratio to 100%. 3) Make a copy on A4 or 81/2 × 11 paper. 4) Measure the length of the copied scale image.
(When a 100mm scale is used as the original.) Original (Scale)
HARDDENCD STAINLESS
5) Calculate the main scanning direction magnification ratio. Main scanning direction magnification ratio = Copy image dimensions × 100 (%)
Original dimension
mm 1/2mm
JAPAN
10
20
100
110
120
130
140
150
Shizuoka
HARDDENCD STAINLESS
Paper feed direction
mm 1/2mm
JAPAN
10
20
100
110
120
130
140
150
Shizuoka
Reference
Comparison point
Copy
110
6) Check that the copy magnification ratio is within the specified range. If it is not within the specified range, perform the following procedures. 7) Execute SIM 48-1 to select the main scanning direction copy magnification ratio adjustment mode. To select the adjustment mode, use the copy mode select key. In the case of the automatic adjustment, when the PRINT switch is pressed, the mirror base unit moves to the white plate for shading to scan the width of the reference line, calculating the correction value and displaying and storing this value. After execution of the automatic adjustment, go out from the simulation mode and make a copy to check the magnification ratio. If the magnification ratio is not in the specified range (100 ±1.0%), manually adjust as follows. Adjustment mode Main scanning direction auto copy magnification ratio adjustment Main scanning direction manual copy magnification ratio adjustment Sub scanning direction copy magnification ratio adjustment Lighting lamp Auto exposure lamp ON Manual exposure lamp ON Photo exposure lamp ON
must have been completed. If not, this adjustment cannot be performed properly. q Image distortion adjustment q Must be installed to the lens unit reference position. II. Cases when the adjustment is required 1) When the lens and the mirror unit are disassembled or the part is replaced. 2) When the scanner unit drive section is disassembled or the part is replaced. 3) When the main PWB is replaced. 4) When the EEPROM in the main PWB is replaced. 5) When "U2" trouble occurs. 6) When the copy image distortion adjustment is performed. III. Necessary tools q Screwdriver (+) q Scale IV. Adjustment procedure 1) Set the scale on the document table as shown below. (Use a long scale for precise adjustment.)
8) Set the adjustment mode to Manual with the copy mode select key. 9) Enter the new set value of main scanning direction copy magnification ratio with the copy quantity set key, and press the COPY button. 10) Change the set value and repeat the adjustment until the ratio is within the speoified range. When the set value is changed by 1, the magnification ration is changed by 0.1%.
c. Sub scanning direction copy magnification ratio
I. Note Before performing this adjustment, the following adjustments 2) Set the copy magnification ratio to 100%. 3) Make a copy on A4 or 81/2 × 11 paper. 9-5
AL-1000/1010
110
Original (Scale)
HARDDENCD STAINLESS
mm 1/2mm
JAPAN
10
20
100
110
120
130
140
150
Shizuoka
HARDDENCD STAINLESS
mm 1/2mm
JAPAN
Paper feed direction
10
20
100
110
120
130
140
150
Shizuoka
Reference
Comparison point
Copy
4) Measure the length of the copied scale image. 5) Calculate the sub scanning direction copy magnification ratio. Sub scanning direction copy magnification ratio = Copy image dimension × 100 (%) Original dimension 6) Check that the actual copy magnification ratio is within the specified range. (100 ± 1.0%). If it is not within the specified range, perform the following procedures. 7) Execute SIM 48-1 to select the sub scanning direction copy magnification ratio adjustment mode. To select the adjustment mode, use the copy mode select key. (Photo exposure lamp ON) 8) Enter the new set