SHARP DM-1500, DM-1505 Service Manual

(DM-1505)

DM-1505

CODE: 00ZDM1505/A1E

DIGITAL COPIER

DM-1500

MODEL DM-1505

CONTENTS

[ 1 ] GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

[ 2 ] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . 2 - 1

[ 3 ] CONSUMABLE PARTS . . . . . . . . . . . . . . . . . . . 3 - 1

[ 4 ] EXTERNAL VIEWS AND INTERNAL STRUCTURES . . . 4 - 1

[ 5 ] UNPACKING AND INSTALLATION . . . . . . . . . . . . . 5 - 1

[ 6 ] OPERATIONAL DESCRIPTIONS . . . . . . . . . . . . . . 6 - 1

[ 7 ] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . 7 - 1

[ 8 ] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . 8 - 1

[ 9 ] SIMULATION TROUBLE CODES . . . . . . . . . . . . . . 9 - 1

[10] USER PROGRAM . . . . . . . . . . . . . . . . . . . . . . 10 - 1

[11] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . 11 - 1

[12] CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . 12 - 1

Parts marked with “ ” are important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.

This document has been published to be used

SHARP CORPORATION

for after sales service only.
The contents are subject to change without notice.

DM-1505

CAUTION

This product is a class 1 laser product that complies with 21CFR 1040.10 and 1040.11 of the CDRH stand­ard and IEC825. This means that this machine does not produce hazardous laser radiation. The use of
controls, adjustments or performance of procedures other than those specified herein may result in haz­ardous radiation exposure.

This laser radiation is not a danger to the skin, but when an exact focusing of the laser beam is achieved
on the eye’s retina, there is the danger of spot damage to the retina.

The following cautions must be observed to avoid exposure of the laser beam to your eyes at the time
of servicing.

1) When a problem in the laser optical unit has occurred, the whole optical unit must be exchanged as
a unit, not as individual parts.

2) Do not look into the machine with the main switch turned on after removing the developer unit, toner
cartridge, and drum cartridge.

3) Do not look into the laser beam exposure slit of the laser optical unit with the connector connected
when removing and installing the optical system.

4) The middle frame contains the safety interlock switch.
Do not defeat the safety interlock by inserting wedges or other items into the switch slot.

LASER WAVE – LENGTH : 780 ∼ 795
Pulse times : 0.481 ms/6 mm
Out put power : 0.20 ± 0.03 mW

CAUTION

INVISIBLE LASER RADIATION,
WHEN OPEN AND INTERLOCKS DEFEATED.
AVOID EXPOSURE TO BEAM.

VORSICHT

UNSICHTBARE LASERSTRAHLUNG,
WENN ABDECKUNG GEÖFFNET UND
SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT.
NICHT DEM STRAHL AUSSETZEN.

VARO !

AVATTAESSA JA SUOJALUKITUS
OHITETTAESSA OLET ALTTIINA
NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE ÄLÄ
KATSO SÄTEESEEN.

ADVARSEL

USYNLIG LASERSTRÅLNING VED ÅBNING, NÅR
SIKKERHEDSBRYDERE ER UDE AF
FUNKTION. UNDGÅ UDSAETTELSE FOR
STRÅLNING.

VARNING !

OSYNLIG LASERSTRÅLNING NÄR DENNA DEL
ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD.
BETRAKTA EJ STRÅLEN. – STRÅLEN ÄR FARLIG.

,

DM-1505

At the production line, the output power
of the scanner unit is adjusted to 0.57
MILLI-WATT PLUS 20 PCTS and is
maintained constant by the operation of
the Automatic Power Control (APC).
Even if the APC circuit fails in operation
for some reason, the maximum output
power will only be 15 MILLI-WATT 0.1
MICRO-SEC. Giving and accessible
emission level of 42 MICRO-WATT
which is still-less than the limit of
CLASS-1 laser product.

Caution

This product contains a low power laser
device. To ensure continued safety do not
remove any cover or attempt to gain access
to the inside of the product. Refer all
servicing to qualified personnel.

The foregoing is applicable only to the 220V
model

230V model and 240V model.

VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA
KUIN TÄSSÄ KÄYTTÖOHJEESSA MAINITULLA
TAVALLA SAATTAA ALTISTAA KÄYTTÄJÄN
TURVALLISUUSLUOKAN 1 YLITTÄVÄLLE
NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.

VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT
SÄTT ÄN I DENNA BRUKSANVISNING
SPECIFICERATS, KAN ANVÄNDAREN UTSÄTTAS
FÖR OSYNLIG LASERSTRÅLNING, SOM
ÖVERSKRIDER GRÄNSEN FÖR LASERKLASS 1.

LUOKAN 1 LASERLAITE
KLASS 1 LASER APPARAT

DM-1505

[1] GENERAL

1. Major functions

Item

Model

DM-1500 15CPM MB

DM-1505 15CPM MB

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 One Print Many function (Many copies are made by one scan.)
Duplex: Auto duplex copy function

Descriptions of table

:
:

CPM SB/MB 2 Tray SPF R-SPF FAX

Standard provision
No function or no option available

2. System Configuration

GDI

with USB

GDI

without

USB

PCL

with USB

SOPM Duplex

(DM-1500)

(DM-1505)

1 – 1

[2] SPECIFICATIONS

1. Basic specifications of copier

A. Basic specifications

Item Spec.

Type Desktop

Copy system Dry, electrostatic

Segment (class) Digital personal copier

External dimensions (W × D × H) (mm) DM-1500/DM-1505: 518mm × 482.6mm × 464mm

Weight

B. Operation specification

Section Item Details Spec.

Paper feed
system

Paper size A4, B5, A5 (Landscape)

Tray paper feed
section

AB system

Paper
feed
section

Inch system

AB system

Paper for
Duplex

Inch system

∗1: OHP, Label, Postal card: each 1 pc.

Multi bypass paper
feed section

Tray paper feed
section

Multi bypass paper
feed section

Paper weight 56 – 80g/m

Paper feed capacity 250 sheets

Kinds Standard paper, specified paper, recycled paper

Remark User adjustment of paper guide available

Paper size A4, B5, A5, B6, A6 (Landscape)

Paper weight 52 – 128g/m

Paper feed capacity 50 sheets

Kinds ∗1

Remark User adjustment of paper guide available

Paper size 8-1/2″ × 14″, 8-1/2″ × 11″, 8-1/2″ × 5-1/2″ (Landscape)

Paper weight 15 – 21 lbs.

Paper feed capacity 250 sheets

Kinds Standard paper, specified paper, recycled paper

Remark User adjustment of paper guide available

Paper size

Paper weight 14 – 34.5 lbs.

Paper feed capacity 50 sheets

Kinds ∗1

Remark User adjustment of paper guide available

Paper size A4, B5, A5 (Landscape)

Paper weight 56 – 80 g/m

Kinds

Paper size 8-1/2″ × 14″, 8-1/2″ × 11″, 8-1/2″ × 5-1/2″ (Landscape)

Paper weight 15-21 lbs.

Kinds

DM-1500: Approx. 25Kg, (drum cartridges included)
DM-1505: Approx. 26Kg, (drum cartridges included)

DM-1500/DM-1505: 2 tray (250 sheets) + multi bypass (50

sheets)

Standard paper, specified paper, recycled paper, OHP, Label,

Postal card

8-1/2″ × 14″, 8-1/2″ × 11″, 8-1/2″ × 5-1/2″, 3-1/2″ × 5-1/2″

(Landscape)

Standard paper, specified paper, recycled paper, OHP, Label,

Postal card

Standard paper,
Specified paper,

Recycled paper

Standard paper,
Specified paper,

Recycled paper

DM-1505

2

2

2

2 – 1

DM-1505

Section Item Details Spec.

Exit way Face down

Paper exit section

Capacity of output
tray

Original set Center Registration (left edge)

Max. original size B4 (10″ × 14″)

Originals

Original kinds sheet

Original size
detection

Scanning system CCD sensor scanning by lighting lamp scanner

CCD sensor Resolution 400 dpi

Optical
section

Scanning
section

Lighting lamp

Type Xenon lamp

Voltage 1.5kV

Power consumption 11 ± 3W

Gradation 256 gradations/8bit

Writing
section

Writing system Writing to OPC drum by the semiconductor laser

Laser unit Resolution 600 dpi

Photoconductor

Type OPC (30φ)

Life 18k

Image forming

Charger

Charging system Saw -tooth charging with a grid

Transfer system (+) DC corotron system

Separation system (–) DC corotron system

Developing Developing system Dry, 2-component magnetic brush development system

Cleaning Cleaning system Counter blade system (Counter to rotation)

Fusing system Heat roller system

Upper heat roller Type Teflon roller

Fusing section

Lower heat roller Type Silicon rubber roller

Type Halogen lamp

Heater lamp

Voltage 100V/120V/230V

Power consumption 800W

Power source

Voltage Local AC voltage

Frequency Common use for 50 and 60Hz

Electrical section

Max. DM-1500/DM-1505: 1000W

Average (during copying) *

Power consumption

Average (stand-by) *

Pre-heat mode *

1)

Auto power shut-off mode *

*1) May fluctuate due to environmental conditions and the input voltage.

100 sheets

None

1)

1)

DM-1500/DM-1505: 310Wh/H

DM-1500/DM-1505: 70Wh/H

DM-1500/DM-1505: 40Wh/H

1)

DM-1500/DM-1505: 20Wh/H

C. Copy performance

Section Item Details Spec.

Copy magnification

Fixed magnification ratios

Zooming magnification ratios 50 ∼ 200% (151 steps in 1% increments)

Exposure mode Auto/Manual/Photo

Manual steps (manual,
photo)

2 – 2

3R + 2E (AB system: 50, 70, 81, 100, 141, 200%)

(Inch system: 50, 64, 78, 100, 129, 200%)

5 steps

Section Item Details Spec.

Tray paper feed

Copy speed First copy time

Manual paper feed

AB system:
A4 (Landscape)

AB system:
B5 (Landscape)

Inch system:
8-1/2″ × 14″
(Landscape)

Inch system:
8-1/2″ × 11″
(Landscape)

Max. continuous copy
quantity

Void

Warm-up time 0 sec.

Power save mode reset time 0 sec.

Paper jam recovery time 0 sec.

Copy speed (CPM)

Copy speed (CPM)

Copy speed (CPM)

Copy speed (CPM)

Void area

OC mode Leading edge

Image loss

SPF/R-SPF/
Duplex

Same size 15

Enlargement 15

Reduction 15

Same size 15

Enlargement 15

Reduction 15

Same size 12

Enlargement 12

Reduction 12

Same size 15

Enlargement 15

Reduction 15

Leading edge 1 ∼ 4mm

Trailing edge

Side edge void area

Leading edge

9.6 sec. or below (A4) (Pre-heat mode: 16 sec. or

below / Auto power-shut-off mode: 23 sec. or above)

10.0 sec (Pre-heat mode: 16 sec. or below / Auto
power-shut-off mode: 23 sec. or above)

99

4mm or less, 6mm or less

(Duplex copying/both images)

machine with side edge void 0.5mm ∼ 4.5mm (Total

of both edge voids)

Same size: 3.0mm or less / Enlarge (200%): 1.5mm

or less / Reduction (50%): 6.0mm or less

Same size: 4.0mm or less / Enlarge (200%): 3.0mm

or less / Reduction (50%): 8.0mm or less

DM-1505

D. Printer specifications

Item Contents

Print speed 15 PPM

First print 9.6 sec

Resolution 600 dpi, 300 dpi

Toner save No

Duplex print Yes (for duplex capable copier)

Paper feed tray

Paper size

Page description
language
(standard)

Dot emulation None

Page protection Yes

Multi bypass tray
Tray 1, Tray 2

A4R, B5R, A5R, 8.5" ×

Multi bypass
tray

Tray 1 ∼ 2

PCL6 (PCL XL) emulation
PCL5e emulation

14", 8.5" × 11"R, 8.5" ×

5.5"R, 8.5" × 13", 8.5" ×

12.4"R, DL, C5, COM10,
Monarch

A4R, B5R, A5R, 8.5" ×
14"R, 8.5" × 11"R, 8.5" ×

5.5"R, 8.5" × 13"R, 8.5"
× 12.4"R

Item Contents

Interface
(Standard)

Applicable
Interface Cable

Auto Interface
Switching

Auto Emulation
Switching

Plug and Play Yes

Printer Driver(*)

Resident Font 45 outline fonts compatible to PCL6

Screen Font 45 outline fonts compatible to PCL6

IEEE1284 port × 1

USB port × 1

Parallel cable compliant IEEE1284 and less
than 2.0m (Shield and earth equipped)
USB cable less than 2.0 m

No

Yes

PCL6
(PCL XL)

MS Windows3.1 No Yes

MS Windows95 Yes Yes

MS Windows98 Yes Yes

MS Windows
NT4.0

Yes Yes

PCL5e

2 – 3

DM-1505

Item Contents

Memory

Expansion Slot for
Memory

Expansion Memory

Operation Panel

Applicable PC IBM PC-AT Compatibles

*: Only Win 98 can be used for USB users.

Operations when both of USB/parallel ports are connected at the same time.
The USB port has a priority over the parallel port.
Smartsharing is invalid.

Interface connected previously Interface connected later Operation

USB (Unfinished print job YES/NO) Parallel port

Parallel port (Unfinished print job
YES/NO)

Parallel port (Unfinished print job
YES/NO)

Standard Maximum

8MB 72MB

One DIMM slots

64MB, 32MB, 16MB
(commercially-available DIMM:EDO)

Switches 1 (Online/Offline)

Lamps 2 (DATA, ONLINE)

Display None

USB

USB

USB: Enable

Parallel port: Disable

When USB is connected after 30sec of no communication through the
parallel port, the mode is shifted to the USB mode instantaneously.
If no communication state does not reach 30sec yet, shifting to the USB
mode is retained until 30sec passes. During that time, print jobs are
performed through the parallel port.

After completion of unfinished print jobs, if there is no communication for
30sec, shifting to the USB mode is made.
Within 30sec, print jobs are performed through the parallel port.

2 – 4

DM-1505

[3] CONSUMABLE PARTS

1. Supply system table

A. USA, CANADA

No. Name Content Life Product name Package Remark

1 Developer cartridge

(Black)
<With IC>

2 Drum cartridge Drum cartridge × 1 18K DM-150DR 5

Toner/developer cartridge
(Toner: 220g, Developer: 190g)

IC chip × 1

Warranty Card × 1

Postcard label × 1

Returned Operation Manual × 1

Polyethene bag × 1

Warranty Card × 1

× 1 6K DM-150TD 5 Life setup is based on

A4 5% documents.
For 6% coverage, 5K
life.

2. Environmental

The environmental conditions for assuring the copy quality and the
machine operations are as follows:

(1) Normal operating condition

Temperature:20˚C~25
Humidity:65 ± 5%RH

(2) Acceptable operating condition

Humidity (RH)

85%

60%

20%

10˚C30˚C35˚C

(3) Optical condition

Humidity (RH)

90%

(4) Supply storage condition

Humidity (RH)

90%

20%

–5˚C45˚C

3. Production control number(lot No.)
identification

〈Developing cartridge〉

Production month

Production day

Destination code

(Dealer, distributor, OEM, etc.)

Production place

(SOCC: Fixed to B.)

End digit of year

Version No.

60%

15%

–25˚C30˚C40˚C

3 – 1

∗:Destination

EX Destination

Option Destination

Division No.

A same pack G

B same pack H

AP

BQ

DM-1505

〈Drum cartridge〉

The label on the drum cartridge shows the date of production.
(SOCC production)

Production month

Production day

Destination code

(Dealer, distributor, OEM, etc.)

Production place

(SOCC: Fixed to B.)

End digit of year

Version No.

〈JAPAN production〉

X000119Ver.A 1

Production month

(1 - 9 = Jan. - Sep. 0 = Oct. X = Nov. Y = Dec.)

Serial number of month

Fixed to 1.

Pack division

(See table below)

End digit of year

Version No.

Production control
label attachment position

Production control
label attachment position(*1)

Division No.

Ex production 1

Option 2

Same pack 3

∗1 The production control label is not attached to the cartridge of a

China product.

3 – 2

DM-1505

4. Memory Device

A. Function

The memory device is used to monitor the life of the developer cartridge in the way that the machine reads and writes information (e.g.page count)
to the memory device equipped in the developer cartridge.
When the life is reached, the memory device becomes nonfunctional to prevent the deterioration of image/text quality and machine damages.
Therefore, unnecessary service costs would be saved.

B. Flowchart

New developer cartridge

Handshake

Machine

Is 8K print reached ?

Copying

No

Is toner empty
detected ?

Yes

End of life

Installed to the machine

Yes

No

Conditions for end of life
(1) Copy/print volume = 8K.

(2) Toner empty is detected.

C. Display timing of DM-1500/1505 maintenance lamps, toner lamp and error codes

Remaining print quantity ≥ 8K Remaining print quantity < 8K

Maintenance

lamp

During
maintenance
period

After
maintenance
period

Note: When the memory device is faulty, “U2” will be displayed.

Start OFF OFF – OFF OFF – OFF –

Toner Near OFF ON – OFF ON – ON –

Toner End OFF BLINK – OFF BLINK F2 BLINK F2

Start ON OFF – ON OFF – OFF –

Toner Near ON ON – ON ON – ON –

Toner End ON BLINK – ON BLINK F2 BLINK F2

Toner lamp Error code

Maintenance

3 – 3

lamp

Toner lamp Error code Toner lamp Error code

Remaining print quantity

= 0

DM-1505

5. Consumable parts refill procedure

[External view check points]

Check for breakage of the four pins (*) and the ATC sensor connector
of the DV BOX unit.

*Pins *Pins

ATC sensor
connector

Check for breakage of molt and suede.
(For reattachment, refer to the reattachment procedure.)

DV molt F DV molt DV molt R

2) Remove the DVF cover unit.

• When removing, be careful not to break the two pins.

3) Remove the THBOX unit.

Side sheet F Side sheet R

A. TD cartridge

1) Remove the waste toner box unit

4) Remove the DV blade.

• Remove excessive glue.

• Remove together with the base PET.

3 – 4

DM-1505

5) Tilt the DV box unit and rotate the DV18T clockwise to remove
developer.

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.

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.

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.

3 – 5

DM-1505

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

0.5 0

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.

17) Replace the IC connector.
Check that there is no oil on the IC connector pins. (Do not touch
with fingers.)

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.

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.)

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 – 6

DM-1505

[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.

00.5

0

0.5

0

DV box unit F side

.

Remove glue completely before reattaching.

.

After drying alcohol, attach the side sheet F,R.

DV box unit R side

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)

00.5

DV molt attachment
reference
(DV box edge)

0.5

0

DV molt
attachment
reference
(DV box edge)

0.5

DV molt
attachment
reference
(DV box edge)

0.5

0

0.5

0

01

DV molt R
attachment

0 0.5

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.

00.5

projection in the arrow
direction is not allowed.

0

0.5

When attaching the DV molt F,

When attaching the DV molt R,
projection in the arrow
direction is not allowed.

0

0.5

3 – 7

0 0.5

DM-1505

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 smooth-

ly.

• 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.

L

O

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 – 8

DM-1505

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.

10) Attach the felt.

12) Attach the drum fixing plate and the photoconductor drum.
Apply grease to the inside of the photoconductor drum. (Dia. 2)

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

Note: Another method of cleaning the drum counter is avail-

3 – 9

able with SIM 24-07.

DM-1505

[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES

1. Appearance

10

9

1

11

DM-1500

17

Original cover

18

19

8

7

6

1 Original cover 2 Side cover 3 Bypass tray

4 Bypass tray guides 5 Side cover open button 6 Front cover

7 Paper tray 8 Operation panel 9 Original table

10 Handle 11 PCL printer interface 12 Paper output tray

13 Paper output tray extension 14 Handle 15 Power switch

16 Power cord socket 17 SPF exit area ∗1 18 Original guides

19 Document feeder tray 20 Feeding roller cover 21 RSPF exit area ∗2

∗1 DM-1500 only ∗2 DM-1505 only

5

2

3

4

16

15

12

13

14

DM-1505

21

2. Internal

20

18

19

20

1

2

5

1 TD cartridge lock release button 2 TD cartridge 3 Drum cartridge

4 Drum cartridge handle 5 Fusing unit release lever 6 Charger cleaner

7 Transfer charger

6

3

4

7

4 – 1

3. Operation panel

1234567 891011121314

Exposure mode selector key and indicators

Duplex Mode select key and indicator

1

(DM-1505 only)

Light and dark keys and exposure indicators

Use to adjust the MANUAL or PHOTO exposure level.

3

Selected exposure level is shown by a lit indicator.
Use to start and terminate user program setting.

5 SPF indicator 6 SPF misfeed indicator

Copy ratio selector key and copy ratio indicators

Use to sequentially select preset reduction/enlargement

7

copy ratios.
Selected copy ratio is shown by a lit indicator.

9 Copy ratio display (%) key 10

ON LINE indicator / ON LINE KEY

Lights up when the machine is used as a printer.

11

To use as a printer, an optional printer expansion kit is
needed.

DATA indicator

13

Indicates that the printer is receiving or processing print
data

Tray select key

15

Use to select a paper feed station (paper tray or
bypass tray).

Zoom keys

17

Use to select any reduction or enlargement copy ratio
from 50% to 200% in 1% increments.

Clear key

• Press to clear the display, or press during a copy run

19

to terminate copying.

• Press and hold down during standby to display the
total number of copies made to date.

Use to sequentially select the exposure modes: AUTO,

2

MANUAL or PHOTO. Selected mode is shown by a lit
indicator.

Alarm indicators

:Drum replacement required indicator

4

:Misfeed indicator
:TD cartridge replacement required indicator
:Maintenance indicator

8 Zoom indicator

Display

Displays the specified copy quantity, zoom copy ratio,
user program code, and error code.

ON LINE key

12

Changes between the on-line and off-line modes.

Power save indicator

14

Lights up when the copier is in a power save mode.

Paper feed location indicators

16

Light up to show the selected paper feed station.

Copy quantity keys

18

• Use to select the desired copy quantity (1 to 99).

• Use to make user program entries.

Print key and ready indicator

20

• Copying is possible when the indicator is on.

• Use to set a user program.

DM-1505

201918171615

4 – 2

DM-1505

4. Motors and solenoids

3

2

8

4

1

5

7

6

No. Part name Control signal Function,operation

1 Main motor MM Drives the copier.

2 Mirror motor MRMT Drives the optical mirror base (scanner unit).

3 Toner motor TM Supplies toner.

4 Cooling fan motor VFM Cools the optical section.

5 Resist roller solenoid RRS Resist roller rotation control solenoid

6 Paper feed solenoid CPFS1 Cassette Paper feed solenoid

7 Multi paper feed solenoid MPFS Multi manual pages feed solenoid

8 SPF motor SPFM Drives the single pass feeder

4 – 3

5. Sensors and switches

DM-1505

1

12

2

10

11

3

4

13

5

9

7

8

6

14

No. Name Signal Type Function Output

Mirror home position

1

sensor

MHPS Transmission sensor

Mirror (scanner unit)
home position detection

“H” at home position

2 POD sensor POD Transmission sensor Paper exit detection “H” at paper pass

3 PPD2 sensor PPD2 Transmission sensor

4 Cassette detection switch CED1 Microswitch

Manual feed detection

5

switch

MFD Transmission sensor

6 PPD1 sensor PPD1 Transmission sensor

7 Door switch DSW Micro switch

8 Door switch DSW Micro switch

9 Drum reset switch DRST Micro switch

10 SPF sensor

SPID/SD
SW

Transmission sensor

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

Paper entry detection
Cover open/close
detection

“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

“L” at paper pass

11 SPPD sensor SPPD Transmission sensor Paper transport detection “L” at paper pass

12 SDOD sensor SDOD Transmission sensor

13 2nd cassette DSW Micro switch

14 PPD3 sensor PPD3 Transmission sensor

SPF open/close detection
Book sensor

2nd cassette door open
detection

Paper transport
detection 3

“L” at paper pass

1 or 0V of 5V at door
open

“L” at paper pass

4 – 4

DM-1505

6. PWB unit

10

11

1

2

9

5

8

6

4

3

7

No. Name Function

1 Exposure lamp invertor PWB Exposure lamp (Xenon lamp) control

2 Main PWB (MCU) Copier control

3 Operation PWB Operation input/display

4 Power PWB AC power input, DC voltage control, High voltage control

5 CCD sensor PWB For image scanning

6 LSU motor PWB For polygon motor drive

7 TCS PWB For toner sensor control

8 LSU PWB For laser control

9 Memory PWB 6MB For memorying data

10 I/F PWB I/F PWB between PCL and PC

11 PCL control PWB PCL printer control

4 – 5

7. Cross sectional view

DM-1505

19 16 17

6

4

5

3

18

1

2

7

8

9

10
11

12

15

14

13

No. Part name Function and operation

1 Scanner unit

2 Exposure lamp Exposure lamp (Xenon lamp) Illuminates original

3 Lens unit Scans the original image with the lens and the CCD.

4 LSU (Laser unit) Converts the original image signal into laser beams and writes onto the drum.

5 Paper exit roller Roller for paper exit

6 Main charger Provides negative charges evenly to the drum surface.

7 Heat roller Fuses toner on the paper. (Teflon roller)

8 Pressure roller Fuses toner on the paper. (Silicon rubber roller)

9 Drum Forms images.

10 Transfer unit Transfers images onto the drum.

11 Pickup roller Picks up the manual feed paper. (In multi feed only)

Manual paper feed

12

tray

Manual paper feed

13

roller

14 PS roller unit Takes synchronization between the lead edge and the rear edge of the paper.

15 Paper feed roller Picks up a sheet of paper from the cassette.

16 Pickup roller Picks up documents.

17 Separation roller Separates documents to feed properly.

18 PS roller Feeds documents to the scanning section.

19 Paper exit roller Discharges documents.

Illuminates the original with the copy lamp and passes the reflected light to the lens unit
(CCD).

Tray for manual feed paper

Transport the paper from the manual paper feed port.

4 – 6

DM-1505

[5] UNPACKING AND INSTALLATION

1. COPIER INSTALLATION

Improper installation may damage the copier. Please note the following
during initial installation and whenever the copier is moved.

Caution: If the copier is moved from a cool place to a warm place,

condensation may form inside the copier. Operation in this
condition will cause poor copy quality and malfunctions.
Leave the copier at room temperature for at least 2 hours
before use.

Do not install your copier in areas that are:

● damp, humid, or very dusty

● exposed to direct sunlight

4"

(10cm)

8"(20cm)

4"
(10cm)

8"(20cm)

2. CAUTIONS ON HANDLING

Be careful in handling the copier as follows to maintain the perfor­mance of this copier.

Do not drop the copier, subject it to shock or strike it against any object.

Do not expose the drum cartridge to direct sunlight.
Doing so will damage the surface (green portion) of the drum cartridge,
causing poor print quality.

● poorly ventilated

● subject to extreme temperature or humidity changes, e.g., near an

air conditioner or heater.

The copier should be installed near an accessible power outlet for easy
connection.

Be sure to connect the power cord only to a power outlet that meets
the specified voltage and current requirements.
Also make certain the outlet is properly grounded.

Store spare supplies such as drum cartridges and TD cartridges in a
dark place without removing from the package before use.

If they are exposed to direct sunlight, poor print quality may result.

Do not touch the surface (green portion) of the drum cartridge.
Doing so will damage the surface of the cartridge, causing poor print
quality.

Be sure to allow the required space around the machine for servicing
and proper ventilation.

5 – 1

DM-1505

3. CHECKING PACKED COMPONENTS
AND ACCESSORIES

Open the carton and check if the following components and acces­sories are included.

Power cord

TD cartridge

Copier

Drum cartridge

(installed in copier)

4. UNPACKING

Be sure to hold the handles on both sides of the copier to unpack the
copier and carry it to the installation location.

6. INSTALLING THE TD CARTRIDGE

The TD cartridge replacement required ( ) indicator will light up
when toner is needed. If copying is continued while the indicator
is lit, copies will gradually become lighter until the copier stops and the
indicator begins blinking. Replace the old TD cartridge by following the
procedure given below.

Note:

● After the copier stops, it may be possible to make a few
more copies by taking the TD cartridge out of the copier,
shaking it horizontally, then reinstalling it. If copying is
not possible after this operation, replace the TD
cartridge.

● During long copy run of a dark original, the ready ( )
indicator may blink, the indicator light up, and the
copier stop, even though toner is left. The copier will feed
toner up to 2 minutes and then the ready ( ) indicator
will light up. Press the print ( ) key to restart copying.

1) Ensure that the bypass tray is open and then open the side cover
while pressing the side cover open button.

5. REMOVING PROTECTIVE PACKING
MATERIALS

1) Remove pieces of tape and protective cover. Then open the original

cover and remove protective materials (a) and (b).

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.

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.

3) Push gently on both sides of the front cover to open the cover.

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.

4 or 5 times

5 – 2

DM-1505

5) Hold the tab of the protective cover and pull the tab to remove the
cover.

6) Gently insert the TD cartridge until it locks in place.

7) Close the front cover and then the side cover by pressing the round
projections near the side cover open button. The indicator will
go out and the ready ( ) indicator will light up.

Note: When closing the covers, be sure to close the front cover

securely and then close the side cover. If the covers are closed
in the wrong order, the covers may be damaged.

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.

3) Store the pressure plate lock which has been removed in step 2
and the screw which has been removed when unpacking in the
front of the paper tray. To store the pressure plate lock, rotate the
lock to fix it on the relevant location.

4) Adjust the paper guides on the paper tray to the copy paper width
and length.
Squeeze the lever of paper guide (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)

5) Fan the copy paper and insert it into the tray. Make sure the edges
go under the corner hooks.

Note: Do not load paper above the maximum height line ( ). Ex-

ceeding the line will cause a paper misfeed.

Paper guide (A)

7. LOADING COPY PAPER

Note: This copier is equipped with two paper trays. Load copy paper

into the two paper trays.

1) Raise the handle of the paper tray and pull the paper tray out until
it stops.

6) Gently push the paper tray back into the copier.
Note: After loading copy paper, to cancel the blinking “P” without res-

tarting copying, press the clear ( ) key. The “P” in the display
will go out and the ready ( ) indicator will light up.

5 – 3

DM-1505

8. POWER TO 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.

2) Plug the other end of the power cord into the nearest outlet.

9. INSTALLING THE PRINTER DRIVER

(Description of the printer driver)

The printer driver is the software program which runs the printer. It con­verts the data in your file into information that the printer can under­stand. It also controls communication between the printer and
computer as the data is printed.

(Checking the hardware and software require­ments)

You will need the following hardware and software in order to install the
printer driver.
Computer type IBM PC/AT or compatible computer equipped

with a bi-directional parallel or USB interface,
and CD-ROM drive

Windows type Windows 3.1x, Windows 95, Windows 98*,

Windows NT 4.0 * USB is supported on Win-

dows 98 preinstalled only.
CPU 486DX 66MHz or better
Physical RAM Windows 95, Windows 3.1x: 8MB (16MB or

more is recommended.)

Windows NT 4.0: 12MB (16MB or more is

recommended.)

Windows 98: 16MB (32MB or more is recom-

mended.)
Display 640 × 480 dots (VGA) or better
Hard disk free space 10MB or more

Caution: The printer driver included in this product cannot be used

under Windows NT 3.5x, OS/2, pure MS-DOS and other
operating systems which are not described above.

Note: The PCL6 printer driver is not available in Windows 3.1 en-

vironment.

(Installing the printer driver)

The software for your printer is provided on CD-ROM.
Before installing the printer driver, be sure to check the following items.

● Is the printer connected properly to the computer?

● Does the printer have paper?

A. Windows 95/Windows NT 4.0 Installation In-

structions:

With both the computer and the printer turned off, connect the printer
to the computer with a parallel interface cable.

1) Load paper into the paper tray of the printer. For instructions on

loading paper, see the section LOADING COPY PAPER in the
copier operation manual.

2) Turn on the printer.

3) Turn on your computer and start Windows.

Note: Before installing the printer driver, be sure to close all other

applications which may be open.

4) When using Windows 95 on a personal computer with plug & play*,
the “Update Device Driver Wizard” window will appear. Insert the in­stallation CD-ROM into the CD-ROM drive. Click the Next button
and follow the on-screen instructions. If the “Copying Files” window
appears during this operation, enter R:\ (if the CD-ROM is desig­nated as drive R), click the OK button and follow the on-screen in­structions.

● If you use Windows 95 and the “New Hardware Found” window will

appear, select Driver from Disk Provided by Hardware Manufacturer
and then click the OK button. Proceed to step 6.

● If you use Windows 95 and the screen shown above or the “New

Hardware Found” window does not appear, proceed to step 5.

● If you use Windows NT 4.0, proceed to step 5.

* Plug & play
This feature is effective if both the computer and peripheral equipment
are equipped with IEEE 1284 compliant parallel interface.

Note: The screen displayed depends on the version of Windows

you are using.

5) Insert the installation CD-ROM into the CD-ROM drive.
Click the Start button and select Run. When the screen shown
below appears, type R:\SETUP (if the CD-ROM is designated as
drive R) and click the OK button. Follow the on-screen instructions.

6) The “Install From Disk” window will appear. Insert the installation
CD-ROM into the CD-ROM drive. Type R:\ (if the CD-ROM is desig­nated as drive R) and click the OK button. Follow the on-screen in­structions.

5 – 4

Note: If you have any problem with the test print, check the

symptoms and solutions. Print the test page again after
resolving the problem.

DM-1505

B. Windows 98:

With both the computer and the printer turned off, connect the printer
to the computer with either a parallel or a USB interface cable.

1) Load paper into the paper tray of the printer. For instructions on
loading paper, see the section LOADING COPY PAPER found in
the copier operation manual.

2) Turn on the printer.

3) Turn on your computer and start Windows.

When using the USB interface:

● Connect your personal computer and the printer using a USB inter-

face cable if you have not already done so. (For information about
connecting the USB interface cable)

● When the “Add New Hardware Wizard” window appears, insert the

installation CD-ROM, click the Next button, follow the on-screen in­structions, and finally click the Finish button.

7) Windows driver file search will find the device “SHARP AR-150
Series PCL”. Click the Next button and follow the on-screen instruc­tions.

8) Insert the installation CD-ROM into the CD-ROM drive. (If you are
using the USB interface, confirm that the installation CD-ROM is in
the CD-ROM drive.) Click the Start button and select Run. When
the window shown below appears, type R:\SETUP (if the CD-ROM
is designated as drive R) and click the OK button. Follow the on­screen instructions.

Note: Before installing the printer driver, be sure to close all other

applications which may be open.

4) When using Windows 98 on a personal computer with plug & play*,
the “Add New Hardware Wizard” window will appear. Click the Next
button and follow the on-screen instructions.

● If the “Add New Hardware Wizard” window does not appear, proceed

to step 8.

5) Select Search for the best driver for your device and click the Next
button.

6) Insert the installation CD-ROM into the CD-ROM drive. (If you are
using the USB interface, confirm that the installation CD-ROM is in
the CD-ROM drive.) Select the CD-ROM drive and click the Next
button.

C. Windows 3.1x:

With both the computer and the printer turned off, connect the printer
to the computer with a parallel interface cable.

1) Load paper into the paper tray of the printer. For instructions on
loading paper, see the section LOADING COPY PAPER in the
copier operation manual.

2) Turn on the printer and then start Windows on your computer.

Note: Before installing the printer driver, be sure to close all other

applications which may be open.

3) Insert the installation CD-ROM into the CD-ROM drive.

4) Choose File from the Menu bar in Program Manager, and then
choose the Run... command.

5) Type R:\SETUP (if the CD-ROM is designated as drive R) in the
command line box and then click the OK button.

6) Follow the on-screen instructions.

D. AR-150 Series PCL printer driver group

When you install the printer driver, the SHARP AR-150 Series PCL
printer driver group is automatically created. The printer driver group in­cludes the following items:

5 – 5

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
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 pro­cedure:

1) Press and hold down the light and dark keys simultaneously for

more than 5 seconds until all the alarm indicators blink and “--” ap­pears 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.

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.

4) Select the desired parameter using the right copy quantity key. The

entered parameter number will blink on the right of the display.

DM-1505

Program

No.

6

7 Font list

5) Press the print key. The test page prints.

Note: To change the setting or to set another mode, press the clear

Configuration Page items

1st level item 2nd level item 3rd level item

Hardware Status

Mode Parameters

Configu-

ration

page

key. The printer will return to step 2.

0 → English

3 → Italian

0 → English

3 → Italian

Machine Information Language

Hardware Specs

Processor 64 bit RISC

Interface Menu I/O Timeout

ROM Version

Total Page Count

Version Information PCL6

Input Paper Tray

1 → French 2 → Spanish

4 → German

1 → French 2 → Spanish

4 → German

Basic Memory

Total Memory

Bypass Tray

Tray 1

Tray 2

5 – 6

DM-1505

[6] OPERATIONAL DESCRIPTIONS

1. Outline of operation

The outline of operation is described referring to the basic configuration.

(Basic configuration)

Operation

section

Printer section

Scanner section

MCU (Main control/image process section)

LSU (Laser unit)
Laser diode, Polygon mirror lens

Laser beam

Process section

Cassette paper

feed section

CCD

Paper exit

PC

PCL control PCL I / F

Fusing section

Paper transport 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.

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 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.

DM-1505

Sub scanning direction

Sensor scanni ng area

Main
scanning
direction

Original

1

2

3

4

5

Image data sent to the ICU PWB

5 4 3 2

1

To MCU PWB

B. Basic structure of scanner section

(1)

(11)

(4)

(7)

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 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.

(2)

(3)

(8)

(6)(5)

(9)

(10)

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.

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 fθ lens, etc.
The laser beams are passed through the collimator lens, the cylindrical
lens, the polygon mirror, the fθ 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.

6 – 2

(3)

(5)

(1)(2)

(4)

: Laser beam

path for BF PWB

DM-1505

No. Component Function

(1) Semiconductor laser Generates laser beams.

(2) Collimator lens

Polygon mirror,

(3)

polygon motor

BD (Mirror, lens,

(4)

PWB)

(5) fθ lens

Makes the laser scanning speeds at both ends of the drum same as
each other.

a ≠ b ≠ c

ab c

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.

Makes the laser scanning
speeds at both ends of the
drum same as each other.
(Refer to the figure below.)

d = e = f

def

4. Fuser section

A. General description

General block diagram (cross section)

Thermal fuse

Separator pawl

PPD2

f

θ

LENS

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

Image surface power:

Polygon motor section:

0.20 ±0.03mW (Laser wavelength
780 – 795nm)

Brushless motor 20.787rpm
No. of mirror surfaces: 6 surfaces

Thermistor

Pressure roller

Heat roller

Paper guide

Top view

Heat roller

(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.

(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.

Thermistor

Separator pawl

Thermal fuse

Heater lamp

6 – 3

DM-1505

(3) 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.

Heated by the heater
lamp.(950W)

Saftey device
(Thermal breaker, thermal
fuse)

Triac (in the
power supply u nit)

The surface temperature
of the upper heat roller is
sensed by the thermistor.

Level of the thermistor is
controlled by the main PWB

With the signal from the
main PWB , the triac is

controlled on and o ff.

(power supply PWB )

.

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.

(4) Fusing resistor
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.

5. Paper feed section and paper transport section

A. Paper transport path and general operations

(2)

(1)

(1) Scanner unit (6) Main charger (11) Pickup roller

(2) Copy lamp (7) Heat roller (12) Manual paper feed tray

(3) Lens unit (8) Pressure roller (13) Manual paper feed roller

(4) LSU (Laser unit) (9) Drum (14) PS roller unit

(5) Paper exit roller (10) Transfer unit (15) Paper feed roller

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.

(5)

(3)

(4)

(6)

(15)

(14)

(13)

(7)

(8)

(9)

(10)

(11)

(12)

6 – 4

DM-1505

(1) 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

RRS

OFF

OFF

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.

PFS

RRS

ON

OFF

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.

PFS

RRS

OFF

OFF

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

RRS

OFF

ON

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.

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.

6 – 5

(2) 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.

A

C

OF

F

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 take-up 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.

DM-1505

A

C

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.)

5) The solenoid turns off to close the gate and return to the initial
state.

C

A

ON

MPFS

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.

OF

F

MPFS

(3) Conditions of occurrence of paper misfeed

a. When the power is turned on:

PPD or POD is ON when the power is turned on.

b. 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.

6 – 6

A

C

DM-1505

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.

6. 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

Process detection switch

7. D-D (Duplex to Duplex) mode paper/
document transport (DM-1505 only)

A. Initial state

Set duplex documents on the document tray.
Set paper on the cassette. (In the duplex mode, the manual feed tray
cannot be selected.)

B. Front copy

Document transport: The document feed roller feeds the document

from the paper feed roller to the PS roller.
→ The document is exposed in the exposure

section, and sent to the document exit section
by the transport/paper exit roller.

→ R-SPF gate solenoid ON
→ The document is sent to the intermediate tray

(but not discharged completely.)

→ The document is stopped once, then

switchback operation is performed. (To the
back copy)

Paper transport: The document is passed through the paper feed

roller and the PS roller by the paper feed roller
and the images on the front surface are trans­ferred.
→ The paper is passed through the fusing sec-

tion and the lower side of the gate section to
the paper exit tray side, (but not discharged
completely.)

→ It is stopped once and switchback operation

is performed. (To the back copy)

2) When the detection gear 38T 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

Gate OFF

Lower Side of Gate

Gate ON

Gear pawl

Projection

6 – 7

DM-1505

C. Back copy

Document transport: By switchback operation, the document is sent

through the PS roller to the exposure section,
where the back of the document is exposed.
→ It is sent to the document exit section by the

transport roller and the paper exit roller.

→ R-SPF gate solenoid ON. The document is

sent to the intermediate tray, (but not dis­charged completely.)

→ It is stopped once and switchback operation

is performed.

→ It is sent through the PS roller and the ex-

posure section (without exposure operation)
to the document exit section.

→ R-SPF gate solenoid OFF
→ The document is discharged to the document

exit tray.

Paper transport: Switchback operation is performed.

→ The paper is sent through the upper side of

the gate section and the duplex transport sec­tion, and the PS roller, and the images on the
back are transferred.

→ It is sent through the fusing section and dis-

charged to the paper exit tray.

Gate ON

Switchback operation is made after back copying in order to discharge
documents according to the setting.
Set document Documents after discharge,

1

with empty feed

23 4
32 1
41 2

There are following job modes as well as D-D mode.

S - S (Simplex to Simplex)
S - D (Simplex to Duplex), Rotation copy mode (The back images are

rotated 180˚.)
S - D (Simplex to Duplex), Copy mode without rotation
D - S (Duplex to Simplex)

Rotation copy mode:

4

without empty feed

3

The front and the back are in upside down each other.

Copy mode without rotation:

The front and the back are not in upside down.

Upper Side of Gate

Gate ON

Gate OFF

6 – 8

DM-1505

[7] 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

9. SPF section

10. 2nd cassette section

11. DUP motor section

12. Reverse roller section

13. RSPF section

1. High voltage section

A. List

No. Part name Ref.

1 Transfer charger unit

2 Charger wire

B. Disassembly procedure

(1) Press the side cover open/close button and open the side cover.

(2) Push up the lock pawls (2 positions) of the side cover, and remove

the transfer charger.

Lock pawl rear

1)

2)

Transfer
charger

1)

Lock pawl front

C. Assembly procedure

For assembly, reverse the disassembly procedure.

D. Charger wire cleaning

1)

2)

(1) Remove the charger cleaner from the manual paper feed unit.

1)

7 – 1

DM-1505

(2) Set the charger cleaner to the transfer unit, and move it reciprocal-

ly a few times in the arrow direction shown in the figure below.

3)

4)

2)

1)

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.

●

The rest of the charger wire must be within 1.5mm.

●

The spring hook section (charger wire winding section) must be
in the range of the projection section.

●

Be careful not to twist the charger wire.

2. Operation panel section

A. List

No. Part name Ref.

1 Operation panel unit

2 Operation PWB

B. Disassembly procedure

(1) Remove the screws (4 pcs.), the harness, and the operation panel

unit.

1)

1)

2)

3)

1)

(2) Remove the screws (3 pcs.) and the PWB holder.
(3) Remove the screws (3 pcs.) and the operation PWB.

1)

Charger wire

Protrusion

1mm

1)

3)

1)

3)

2)

2)

3)

3

)

4)

1.5mm

Note that there are 13 pawls

7 – 2

DM-1505

C. Assembly procedure

For assembly, reverse the disassembly procedure

3. Optical section

A. List

NO. Part name Ref.

1 Copy lamp unit

2 Copy lamp

3 Lens unit

B. Disassembly procedure

(1) Remove the parts as shown below.

1)

(2) Remove the screws (2pcs.), and remove the copy lamp unit from

the mirror base drive wire.

2)

3)

1)

2)

3)

1)

2)

Hook

9)

7)

(3) Pull the copy lamp unit toward you to remove the harness.

4)

4)

10)

6)

3)

4)

5)

8)

2)

3)

1)

1)

3)

2)

(4) Remove the screw (4 pc) and remove the cover.

7 – 3

DM-1505

(5) Remove the screws (2 pcs.), the harness, and the optical unit.

1)

4)

3)

2)

5)

4. Fusing section

A. List

No. Part name Ref.

1 Thermistor

2 PPD2 sensor

3 Heater lamp

4 Pressure roller

5 Heat roller

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.

When installing the lens unit, refer to “8-6. Lens unit installation refer­ence.”

C. Assembly procedure

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

6

5

5

7

7

7

7

6

6

5

5

2

2

6

6

6

6

6

6

2

2

6

6

1

1

1

1

3

3

Wind closely

Wind closely

2

2

Wind closely

Wind closely

3

3

1)

3)

2)

2)

(3) Cut the binding band, remove the screw, and remove the thermis-

tor.

1)

2)

4

2

2

4

After installing the mirror base drive wire, be sure to perform main
scanning direction image distortion adjustment.

7 – 4

Thermistor

3)

DM-1505

(4) Remove the screw and remove the U-turn guide.

1)

2)

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)

4)

6)

(7) Remove the plate spring on the right and remove the heater lamp.

1)

2)

Hearter lamp

(8) Remove the spring and remove the separation pawls (3 pcs.).

3)

5)

6)

5)

(6) Remove the screw and remove the PPD2 sensor.

1)

2)

PPD2 sensor

1)

2)

1)

(9) Remove the E-ring and remove the reverse gate.

3)

1)

7 – 5

2)

DM-1505

(10) Remove the pressure release levers on the right and the left

sides.

1)

1)

(11) Remove the pressure roller, the pressure bearing, and the spring.

Note: Apply grease to the sections specified with ✽.

✽

Pressure roller

(6) Remove the C-ring and the fusing bearing, and remove the heat

roller.

1)

2)

3)

(7) Remove the parts from the heat roller.

Note: Apply grease to the sections specified with ✽.

✽

Heat roller

1)

3)

2)

✽

1)

2)

3)

Heat roller disassembly

(Continued from procedure (4).)

(5) Remove screws, remove the fusing cover, and open the heat roller

section.

3)

✽

3)

2)

(8) Remove two screws and remove the thermo unit.

1)

1)

2)

2)

1)

3)

3)

2)

C. Assembly procedure

For assembly, reverse the disassembly procedure.

7 – 6

DM-1505

5. Tray paper feed/transport section

A. List

No. Part name Ref.

1 PPD1 sensor PWB

2 LSU unit

3 Intermediate frame unit

4 Paper feed roller

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)

2)

(3) Remove two screws and remove the toner motor.

2)

1)

(4) Remove two springs and open the intermediate frame unit.

3)

1)

1)

(2) Remove the PWB insulation mylar and remove the paper transport

detection sensor (PPD2).

2)

1)

2)

1)

3)

7 – 7

DM-1505

(5) Remove the pulleys on the both sides and remove the paper exit

roller.

3)

1)

4)

2)

(7) Release the belt pulley (a) lock and remove the belt pulley bearing.

3)

2)

1)

(6) Pull out the paper exit roller knob and remove the belt.

2)

(8) Remove the paper exit roller.

1)

7 – 8

DM-1505

(9) Remove the harness guide.

(10) Remove five screws and remove the main drive plate and the

belt.

2)

(11) Remove the parts as shown below, and remove the pressure

release solenoid and the paper feed solenoid.

3)

4)

2)

1)

1)

4)

2)

3)

1)

(12) Remove six screws and remove the LSU unit.

2)

1)

3)

1)

1)

CAUTION:Attach

the gears
securely

7 – 9

DM-1505

(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)

4)

2)

2)

(17) Remove three screws and remove the TC front paper guide.

1)

2)

(18) Remove the screw and the connector, and remove the PPD1

sensor PWB.

1)

(15) Remove the screw and the E-ring, and remove the PS semi-cir-

cular earth plate and the PS roller unit.

(16) Remove the E-ring and remove the spring clutch from the PS

roller unit.

5)

5)

4)

4)

PS roller unit

PS roller unit

4)

4)

PS semi-circuler

PS semi-circuler
earth plate

earth plate

1)

1)

1)

2)

2)

2)

3)

3)

7 – 10

DM-1505

(19) Remove two E-rings and remove the paper feed roller.
(20) Remove three E-rings and remove the clutch unit.

5)

Clutch unit

Paper feed
roller

4)

3)

1)

Back

4)

Front

6. Manual paper feed section

A. List

No. Part name Ref.

1 Manual transport roller

2 Cassette detection switch

3 PPD1 sensor PWB

4 Side door detection unit

B. Disassembly procedure

Single unit

(1) Remove the screw and remove the single upper cover.

1)

2)

C. Assembly procedure

For assembly, reverse the disassembly procedure.

2)

7 – 11

DM-1505

(2) Remove the screw and remove the side door detection unit.

2)

1)

Back

(3) Remove three screws and remove the single manual feed upper

frame.

Wire treatment

(4) Remove the PPD1 sensor PWB.

1)

3)

2)

1)

Wire treatment

1)

(5) Remove the E-ring and remove the manual paper feed transport

roller.

2)

3)

4)

3)

7 – 12

1)

2)

DM-1505

(6) Remove the cassette detection switch.

1)

3)

2)

Multi unit

(1) Remove the screw and remove the multi upper cover.

1)

3)

2)

Wire treatment

(7) Remove the multi cover.

Multi cover

(2) Remove the screw and remove the side door detection unit.

Orange

Red

1)

2)

1)

Back

Wire treatment

7 – 13

DM-1505

(3) Remove three screws and remove the multi paper feed upper

frame.

1)

1)

2)

(5) Remove three E-rings and remove the manual paper feed roller

B9.

1)

1)

1)

2)

3)

O

C

L

K

T

O

K

(4) Remove two screws and remove the multi feed bracket unit from

the multi paper feed upper frame.

2)

1)

1)

2)

(6) Remove the pick-up roller.

1)

2)

7 – 14

DM-1505

(7) Cut the binding band and remove the multi paper feed solenoid.

1)

Multi paper feed
solnoid

3)

2)

7. Rear frame section

A. List

No. Part name Ref.

1 Mirror motor

2 Main motor

3 Exhaust fan motor

B. Disassembly procedure

(1) Remove three screws and remove the rear cabinet.

1)

1)

2)

C. Assembly procedure

For assembly, reverse the disassembly procedure.

D. Pressure plate holder attachment

(1) Attach the pressure plate holder so that the resin section is not

covered with the seal M1-N.

Seal M1-N

Pressure plate
holder

Attachment
reference

Attachment
reference

1)

(2) Remove two screws, the harness, and the mirror motor.

3)

1)

2)

7 – 15

2)

DM-1505

(3) Remove two screws and one harness, and remove the main

motor.

3)

1)

2)

8. Power section

A. List

No. Part name Ref.

1 Power PWB

B. Disassembly procedure

(1) Remove two screws and one connector, and remove the power

PWB.

2)

3)

1)

2)

(4) Remove two screws and one connector, and remove the exhaust

fan motor.

1)

3)

C. Assembly procedure

For assembly, reverse the disassembly procedure.

9. SPF section (DM-1500 only)

No. Part name Ref.

A Sensor PWB

B Pickup solenoid

C Clutch

D Manual paper feed roller, pickup roller

E Belt

F SPF motor

G Paper entry sensor

H PS roller

I Paper exit roller

Pickup unit removal

1) Remove three fixing pawls from the bottom of the machine.

2) Remove the front cover and the rear cover.

2

2

C. Assembly procedure

For assembly, reverse the disassembly procedure.

1

7 – 16

DM-1505

1) Remove the belt, the paper feed frame SP, and two harnesses.

2) Remove the pickup unit.

1

1

2

3

4

3

1

1

∗ When installing the parts, be careful of the hole position of the paper

frame SP.

A. Sensor PWB

1) Remove two screws from the bottom of the pickup unit.

2) Remove the upper cover.

B. Pickup solenoid

1) Remove two screws.

2) Remove the pickup solenoid

2

1

A

∗ When installing, hang iron core A on the solenoid arm.

C. Clutch

1) Remove the E-ring.

2) Remove the pulley and bush.

3) Slide the bush in the arrow direction.

4) Lift the clutch, and 5) remove the clutch.

2

1

2

1) Remove two screws.

2) Remove the sensor PWB.

3) Remove the harness.

1

2

5

3

1

1

4

1) Remove the E-ring.

2) Remove the parts.

1

3

1

7 – 17

2

DM-1505

D. Manual paper feed roller, pickup roller

1) Lift the paper stopper.

2) Slide the takeup roller unit.

3) Slide the bush in the arrow direction.

4) Remove the takeup roller unit.

A

1

2

4

3

E. Belt

1) Remove the belt.

F. SPF motor

1) Remove the harness.

2) Remove four screws.

3) Remove the drive unit.

4) Remove the belt.

5) Remove two screws.

6) Remove the SPF motor.

5

1

6

2

1

∗ When installing the takeup roller, hang the projection of the takeup

roller unit on the solenoid arm.

1) Remove the parts.

2) Remove the manual paper feed roller.

3) Remove the pickup roller.

4) Remove the parts.

4

3

1

1

1

2

Transport unit removal

1) Remove two screws.

2) Remove the document tray unit.

3) Remove five screws.

4) Remove the transport unit.

2

3

1

3

G. Paper entry sensor

1) Loosen the screw.

2) Open the paper exit PG.

3) Remove the paper entry sensor.

4) Remove the harness.

5

2

3

4

4

3

3

3

1

4

1

2

7 – 18

DM-1505

H. PS roller

1) Remove the parts.

2) Remove the PS roller.

1

I. Paper exit roller

1) Remove the parts.

2) Remove the paper exit roller.

1

1) Open the right cabinet.

2) Remove three screws.

3) Remove one connector.

4) While tilting down the 2nd connection arm A, pull and remove the
paper feed unit toward you.

C

1

D

D

2

4

3

B

A

1

2

1

2

10. 2nd cassette section

No. Part name Ref.

A Paper sensor

B Cassette detection SW

C Paper feed solenoid

D Transport roller

E Paper feed clutch

F 2nd paper feed roller

Paper feed unit removal

1) Remove the screw.

2) Remove the rear cover.

∗ When installing, engage the pawl and install the unit.

∗ When installing, securely insert two bosses C on the machine side

and two bosses D on the paper feed unit side. Be sure to fix the
earth B.

∗ Insert the 2nd page feed.

A. Paper sensor

1) Remove the pawl.

2) Remove the paper sensor.

3) Remove the harness.

2

3

1

2

1

A

7 – 19

DM-1505

B. Cassette detection SW

1) Remove the pawl.

2) Remove the cassette detection SW.

3) Remove the harness.

1

3

2

C. Paper feed solenoid

1) Remove the screw.

2) Remove the connector.

3) Remove the paper feed solenoid.

3

E. Paper feed clutch

1) Remove the E-ring.

2) Remove the paper feed clutch.

3) Remove the parts.

A

2

1

3

2

D. Transport roller

1) Remove two E-rings.

2) Remove the transport roller.

1

A

B

∗ When installing, fit the cut surface A.

F. 2nd paper feed roller

1) Remove the E-ring and the parts.

2) Remove the 2nd paper feed roller.

A

1

4

3

1

B

2

C

1

D

2

∗ Install so that the earth spring A is brought into contact over bearing

B.

∗ When installing, hang the 2nd connection arm on the 2nd connec-

tion arm SP B. Be sure to install so that the earth spring C is in con­tact under the bearing D.

7 – 20

DM-1505

11. DUP motor section (DM-1505 only)

A. Remove the rear cabinet.

1) Remove four screws.

2) Remove the rear cabinet.

B. Remove the shield plate.

1) Remove six screws.

2) Remove the open/close detection unit, and the earth wire.

3) Remove the shield plate.

3

2

1

C. Remove the main PWB.

1) Remove six screws.

2) Remove connectors.

3) Remove the main PWB.

12. Reverse roller section (DM-1505 only)

A. Remove the reverse unit.

1) Remove four screws

2) Remove the spring, and the earth wire

3) Remove the reverse unit.

2

2

3

1

B. Remove the reverse roller.

1) Bend the reverse roller and remove it.

2

D. Remove the DUP motor.

1) Remove two screws.

2) Remove the DUP motor cover.

3) Remove the DUP motor.

3

2

2

1

2

2

2

2

13. RSPF section (DM-1505 only)

1

A. RSPF

(1) Remove the rear cabinet.

1) Remove four screws.

2) Remove the rear cabinet.

(2) Remove the shield plate.

1) Remove six screws.

2) Remove the open/close detection unit, and the earth wire.

3) Remove the shield plate.

3

2

3

1

Note: When reassembling, be sure to engage the DUP motor gear

with the belt on the main body side.

1

2

7 – 21

2

1

DM-1505

(3) Remove the RSPF.

1) Remove the connector and the cable.

2) Remove the RSPF.

2

D. Pickup unit

1) Remove the belt, the paper feed frame spring, and two harnesses.

2) Remove the pickup unit.

1

1

2

1

1

B. Intermediate tray

1) Remove the intermediate tray.

1

C. Upper cover

1) Remove four screws from the bottom of the main body.

2) Remove the upper cover.

2

1

NOTE: When reassembling, be careful of the hole position for the

paper feed frame spring.

E. Upper cover of the pickup unit.

1) Remove two screws from the bottom of the pickup unit.

2) Remove the upper cover.

2

1

1

1

1

7 – 22

1

DM-1505

F. Sensor PWB

1) Remove two screws.

2) Remove the sensor PWB.

3) Remove the harness.

1

2

H. Clutch

(1) Remove the clutch unit.

1) Remove the E-ring.

2) Remove the pulley and the bush.

3) Slide the bush in the arrow direction.

4) Lift the clutch pawl.

1

5) Remove the clutch unit.

3

2

1

5

3

4

G. Pickup solenoid

1) Remove two screws.

2) Remove the pickup solenoid.

2

(2) Remove the clutch

1

1) Remove the E-ring.

2) Remove the parts.

1

A

NOTE: When reassembling, hang the iron core on the solenoid arm.

2

7 – 23

DM-1505

I. Manual paper feed roller, pickup roller

(1) Remove the pickup unit.

1) Lift the paper stopper.

2) Slide the takeup roller unit.

3) Slide the bush in the arrow direction.

4) Remove the takeup roller.

A

1

2

J. Transport unit removal

1) Remove the harness.

2) Remove two screws.

3) Remove the document tray unit.

4) Remove five screws.

5) Remove the transport unit.

1

3

4

4

2

4

4

4

3

NOTE: When reassembling, hang the convex portion of the roller unit

on the solenoid arm.

(2) Remove the Manual paper feed roller, pickup roller.

1) Remove the parts.

2) Remove the manual paper feed roller.

3) Remove the pickup roller.

4) Remove the parts.

4

3

1

1

2

5

K. Belt 1

1) Remove the belt.

1

2

1

7 – 24

DM-1505

L. Belt 2

1) Remove three screws.

2) Remove the drive unit.

3) Remove

O. Clutch

1) Cut the band with nippers.

2) Remove the harness.

2

1

3) Remove the clutch.

1

3

3

2

NOTE: When reassembling, hang the belt on the boss.

M. SPF motor

1) Remove the harness.

2) Remove two screws.

3) Remove the SPF motor.

3

2

N. Solenoid

1) Remove the harness.

2) Remove two screws.

3) Remove the solenoid.

3

1

1

P. PS roller

(1) Remove the parts.

1) Remove the two screws.

2) Remove the parts.

1

1

1

2

1

2

7 – 25

DM-1505

(2) Remove the PS roller.

1) Loosen the screw.

2) Open the paper exit PG.

3) Remove the parts.

4) Remove the PS roller.

2

R. Transport roller1.

(1) Remove the parts.

1) Remove the parts.

1

1

1

1

(2) Remove the parts.

1) Loosen the screw.

2) Open the paper exit PG.

3

3) Remove the parts.

3

4

3

Q. Paper entry sensor

1) Loosen the screw.

2) Open the paper exit PG.

3) Remove the paper entry sensor.

4) Remove the harness.

3

2

(3) Remove the transport roller.

1) Remove the paper exit PG.

2) Remove the transport roller.

1

4

2

1

1

2

7 – 26

DM-1505

S. Paper exit roller

(1) Remove the parts.

1) Remove two screws.

2) Remove the parts.

2

(2) Remove the paper feed PG upper.

1) Remove two screws.

2) Remove the paper feed PG upper.

T. Solenoid

(1) Remove the reverse gate

1) Remove the ring

2) Remove the reverse gate

1

1

2

1

2

1

(3) Remove the paper exit roller.

1) Remove the parts.

2) Remove the paper exit roller.

NOTE: When reassembling, be careful of the groove and the hole

positions of the spring.

NOTE: When reassembling, hang 2) on the solenoid.

(2) Remove the solenoid.

1) Remove the screw.

2) Remove the solenoid.

2

1

1

1

2

7 – 27

DM-1505

[8] ADJUSTMENTS

1. Optical section

A. Image distortion adjustment

There are following two types of image distortion.

●

Horizontal image distortion

●

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).

(1) Horizontal image distortion adjustment
a. 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.

b. 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:

Document

Copy A

Copy B

d. Adjustment procedure

1) Remove the right cabinet (manual paper feed unit), the docu­ment reference plate.

2) Remove the document glass.

1)

2)

3)

3) Loosen the fixing screw of the copy lamp unit wire.

c. Necessary tools

●

Screwdriver (+)

●

Hex wrench

●

Scale

●

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

L = 10mm

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).

8 – 1

DM-1505

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.

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

Set screw

Scanner unit drive pulley

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.

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.

50mm

8 – 2

Image distortion check chart

DM-1505

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

LL

the edge of the black

LR

background.

Black background

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.

Set screw

(2) Vertical image distortion adjustment
a. 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.

b. Note

●

Horizontal image distortion adjustment

c. 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:

Document

Copy C

Copy D

d. Necessary tools

●

Screwdriver (+)

●

Screwdriver (–)

●

Scale

●

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.

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

L = 10mm

L

e. Adjustment procedure

1) Set the test chart for image distortion adjustment on the docu-

ment 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 right­left 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.

8 – 3

DM-1505

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.

(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.

(1) 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.

(2) Main scanning direction magnification ratio adjustment

a. Note

Before performing this adjustment, the following adjustments must
have been completed. If not, this adjustment cannot be performed
properly.

●

Image distortion adjustment

●

The lens unit must be installed in the reference position.

b. 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.

5) When “U2” trouble occurs.

6) When the copy image distortion adjustment is performed.

Change the height of the right side of the rail.

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.

B. 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.

c. Necessary tools

●

Screwdriver (+)

●

Scale

d. Adjustment procedure

1) Set the scale vertically on the document table. (Use a long scale
for precise adjustment.)

8 – 4

2) Set the copy magnification ratio to 100%.

3) Make a copy on A4 or 81⁄2″ × 11″ paper.

DM-1505

4) Measure the length of the copied scale image. 5) Calculate the main scanning direction magnification ratio.
Main scanning direction magnification ratio

Copy image dimensions

=

Original dimension

× 100 (%)

(When a 100mm scale is used as the original.)

Paper feed
direction

mm
1/2mm

mm
1/2mm

Reference

20

10

10 20

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 Lighting lamp

Main scanning direction auto
copy magnification ratio
adjustment

Main scanning direction manual
copy magnification ratio
adjustment

Sub scanning direction copy
magnification ratio adjustment

Auto exposure lamp
ON

Manual exposure lamp
ON

Photo exposure lamp
ON

Original (Scale)

HARDDENCD

100 110 120 130

110

100

Comparison point

JAPAN

JAPAN

120 130

140

140

150

150

STAINLESS

Shizuoka

HARDDENCD
STAINLESS

Shizuoka

Copy

110

b. 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.

c. Necessary tools

●

Screwdriver (+)

●

Scale

d. 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%.

(3) Sub scanning direction copy magnification ratio

a. Note

Before performing this adjustment, the following adjustments must
have been completed. If not, this adjustment cannot be performed
properly.

●

Image distortion adjustment

●

Must be installed to the lens unit reference position.

8 – 5

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.

5) Calculate the sub scanning direction copy magnification ratio.
Sub scanning direction copy magnification ratio

Copy image dimension

=

Original dimension

× 100 (%)

DM-1505

mm
1/2mm

10 20

100

110 120 130

JAPAN

110

140

Original (Scale)

HARDDENCD
STAINLESS

150

Shizuoka

mm
1/2mm

Reference

20

10

100

Comparison point

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 value of sub scanning direction copy mag­nification ratio with the copy quantity set key, and press the
COPY button.

Repeat procedures 1) — 8) until the sub scanning direction actual
copy magnification ratio in 100% copying is within the specified
range.

When the set value is changed by 1, the magnification ration is
changed by 0.1%.

C. Lens unit attachment reference

Attach the lens unit so that the lens unit number on the lens adjustment
plate is aligned with the scribe line on the base plate.

Lens unit number

110 120

Paper feed
direction

JAPAN

130

140

150

Copy

HARDDENCD
STAINLESS

Shizuoka

D. Image position adjustment

There are following five kinds of image position adjustments, which are
made by laser control except for the image scan start position adjust­ment. For the adjustments, SIM 50 – 01 and SIM 50 – 10 are used.

No. Adjustment item Simulation

1 Print start position 50 – 01

2 Image lead edge void amount 50 – 01

3 Image scan start position 50 – 01

4 Image rear edge void amount 50 – 01

5 Center offset 50 – 10

To select the adjustment mode with SIM 50 – 01, use the copy density
select key.
The relationship between the adjustment modes and the lighting lamps
are as shown in the table below.

Adjustment mode Lighting lamp

Print start position Auto (AE) lamp

Image lead edge void amount Manual (TEXT) lamp

Image scan start position Photo lamp

Image rear edge void amount

Auto, Manual, Photo
lamps

(–) direction

Reference line (0)

(+) direction

Example: Lens unit number –2.8

Attach the lens unit at 2 scales in the paper exit direction
from the reference line.

Note: Never touch the other screws than the unit attachment

screw.
The lens unit is supplied only in a whole unit.

To select the adjustment mode with SIM 50 – 10, use the copy mode
select key.

The relationship between the adjustment modes and the lighting
lamps are as shown in the table below.

Machine with the multi manual paper feed unit

Adjustment mode Lighting lamp

Print center offset (cassette) Auto, Cassette

Print center offset (manual feed) Auto, Manual

Document center offset Auto, Manual

Machine with the single manual paper feed unit

Print center offset (cassette) Auto, Cassette

Print center offset (manual feed) Auto

Document center offset Auto, Manual

8 – 6

DM-1505

(1) Lead edge adjustment

1) Set a scale to the center of the paper lead edge guide as shown

below, and cover it with B4 or 8 1/2″ × 14″ paper.

2) Execute SIM 50 – 01

3) Set the print start position (AE lamp ON) (A), the lead edge void
amount (TEXT lamp ON) (B), and the scan start position (PHOTO
lamp ON) (C) to 0, and make a copy of a scale at 100%.

4) Measure the image loss amount (R mm) of the scale image.

Set C = 10 × R (mm). (Example: Set the value of C to 30.)
When the value of C is increased by 10, the image loss is
decreased by 1mm. (Default: 50)

5) Measure the distance (H mm) between the paper lead edge and
the image print start position.

Set A = 10 × H (mm). (Example: Set the value of A to 50.)
When the value of A is increased by 10, the image lead edge is
shifted to the paper lead edge by 1mm. (Default: 50)

6) Set the lead edge void amount to B = 50 (2.5mm).

When the value of B is increased by 10, the void amount is in­creased by about 1mm. For 25 or less, however, the void amount
becomes zero. (Default: 50)

3) Make a copy and measure the void amount of image rear edge.

Void amount (Standard value: 2 – 3mm)

Scale image

Paper rear edge

4) If the measurement value is out of the specified range, change the
set value and repeat the adjustment procedure.
The default value is 50.

Note: The rear edge void cannot be checked with the first sheet

after entering the simulation mode, the first sheet after turn­ing off/on the power, or the first sheet after inserting the cas­sette. Use the second or later sheet to check the rear edge
void.

(3) Center offset adjustment

1) Set the self-made test chart for the center position adjustment so
that its center line is aligned with the center mark of the document
guide.

●

Test chart for the center position adjustment
Draw a line at the center of A4 or 8 1/2″ × 11″ paper in the
paper transport direction.

(Example)

Distance between paper lead
edge and image: H = 5mm

Image loss:
R = 3mm

5mm

10mm

(2) Image rear edge void amount adjustment

1) Set a scale to the rear edge section of A4 or 11″ × 8 1/2″ paper
size as shown in the figure below, and cover it with B4 or 8 1/2″ ×
14″ paper.

B4 or 8 1/2″ × 14″ paper

A4 size rear edge

Document guide

Center

Copy paper
(A4 or 8 1/2″ × 11″)

2) Execute SIM 50 – 10 to select the print center offset (cassette
paper feed) adjustment mode.
The set adjustment value is displayed on the copy quantity display.

3) Make a copy and check that the copied center line is properly posi­tioned.
The standard value is 0 ± 2mm from the paper center.

(Copy A)

(Copy B)

2.0mm or less

Shift

2.0mm or less

Copy image

Copy paper
folding line

Copy image

2) Execute SIM 50 – 01 to select the image rear edge void amount ad­justment mode.
The set adjustment value is displayed on the copy quantity display.

8 – 7

(Paper feed direction)

Shift

Copy paper
folding line

DM-1505

4) If the measured value is out of the specified range, change the set
value and repeat the adjustment procedure.
When the set value is increased by 1, the copy image is shifted by

0.1mm toward the rear frame.

●

For the manual paper feed, change the manual paper feed ad­justment mode and perform the similar procedures.

●

Since the document center offset is automatically adjusted by
the CCD which scan the reference lines (F/R) on the back of
document guide, there is no need to adjust manually.

2. Copy density adjustment

A. Copy density adjustment timing

The copy density adjustment must be performed in the following cases:

●

When maintenance is performed.

●

When the developing bias/grid bias voltage is adjusted.

●

When the optical section is cleaned.

●

When a part in the optical section is replaced.

●

When the optical section is disassembled.

●

When the OPC drum is replaced.

●

When the main control PWB is replaced.

●

When the EEPROM on the main control PWB is replaced.

●

When the memory trouble (U2) occurs.

B. Note for copy density adjustment

1) Arrangement before execution of the copy density adjustment

●

Clean the optical section.

●

Clean or replace the charger wire.

●

Check that the voltage at the high voltage section and the develop­ing bias voltage are in the specified range.

E. Copy density adjustment procedure

Use SIM 46-01 to set the copy density for each copy mode.
For selection of modes, use the copy mode select key.

(1) Test chart (UKOG-0162FCZZ) setting

1) Place the test chart so that its edge is aligned with the A4 (Letter)

reference line on the document table. Then place a B4 (14″ × 8
1/2″) white paper on the test chart and close the document cover.

White paper

Test chart

C. Necessary tool for copy density adjustment

●

One of the following test charts:
UKOG-0162FCZZ, UKOG-0089CSZZ, KODAK GRAY SCALE

●

B4 (14″ × 8 1/2″) white paper

●

The user program AE setting should be “3.”

1 10

23456789

Test chart comparison table

UKOG­0162FCZZ
DENSITY No.

UKOG­0089CSZZ
DENSITY No.

KODAK GRAY
SCALE

12345678910W

0.1 0.2 0.3 0.5 1.9 0

123419A

W

D. Features of copy density adjustment

For the copy density adjustment, the image data shift function provided
in the image process LSI is used.

List of the adjustment modes

Auto Mode Brightness 1 step only

Manual Mode

Photo Mode

Manual T/S
mode

T/S Auto mode Brightness 1 step only

Brightness 5 steps. Adjustment of only the
center brightness is made.

Brightness 5 steps. Adjustment of only the
center brightness is made.

Brightness 5 steps. Adjustment of only the
center brightness is made.

(2) Perform the adjustment in each mode.

1) Execute SIM 46-1.

2) Select the mode to be adjusted with the exposure mode select key.
Set the exposure level to 3 for all adjustment. (Except for the auto
mode.)

(1)

(2)

(1) Mode select key/display

lamp

(2) Exposure level select

key/display lamp

Adjustment

mode

Auto mode Auto lamp ON —

Manual mode Manual lamp ON 3

Photo mode Photo lamp ON 3

Manual T/S

mode

Auto T/S

mode

Exposure mode

display lamp

Manual lamp/Photo

lamp ON

Auto lamp/Photo

lamp ON

Ex-

posure

level

3

3

Sharp gray chart

adjustment level

“3” is slightly
copied.

“3” is slightly
copied.

“3” is slightly
copied.

“4” is slightly
copied.

“4” is slightly
copied.

8 – 8

DM-1505

3) Make a copy.
Check the adjustment level (shown in the above table) of the ex­posure test chart (Sharp Gray Scale).

Sharp Gray Scale adjustment level

1 10

23456789

Non toner

save mode

Not copied.

1 10

Slightly copied.

23456789

Toner save

mode

Not copied.

Slightly copied.

(When too bright): Decrease the value displayed on the copy

quantity display.

(When too dark): Increase the value displayed on the copy quan-

tity display.

* The value can be set in the range of 1 — 99.

3. High voltage adjustment

A. Main charger (Grid bias)

Note:

●

Use a digital multi meter with internal resistance of 10MΩ or
more measurement.

●

After adjusting the grid LOW output, adjust the HIGH output.
Do not reverse the sequence.

B. DV bias adjustment

Note:

●

A digital multi meter with internal resistance of 1GΩ must be
use for correct adjustment.

W

W

Procedures

1. Set the digital multi meter range to DC500V.

2. Set the positive side of the test rod to the connector CN-10-1 (DV
BIAS) and set the negative side to the connector CN10-2 (FG).

3. Execute SIM 8-1. (The developing bias is outputted for 30 sec.)

4. Adjust the control volume (VR-121) so that the output voltage is –
400 ±5V.

Procedures

1. Set the digital multi meter range to DC700V.

2. Set the positive side of the test rod to the connector CN11-3 (GRID)
of high voltage section of the power PWB and set the negative side
to the frame ground (radiating plate).

3. Execute SIM 8-3. (The main charger output is supplied for 30 sec
in the grid voltage LOW output mode.)

4. Adjust the control volume (VR-141) so that the output voltage is –
400 ±20V.

5. Execute SIM 8-2. (The main charger output is supplied for 30 sec
in the grid voltage HIGH output mode.)

6. Adjust the control volume (VR-142) so that the output voltage is 580
±10V.

4. Duplex adjustment

A. Adjusting the paper reverse position in memory

for duplex copying

This step adjusts the front surface printing (odd-number pages of a
document set) in the S-D mode copying and the leading edge position
of an image on even-number pages in the D-S mode.
That is, it covers the adjustment of the second surface printing mode
(image loss at the front edge of an image) in which image data is once
stored in memory.
The image data is read, starting from its front end in the document
delivery direction (Reference direction of document setting in the OC
mode)and stored in memory.
This stored image data is printed starting at the printing start position,
in the order of last-stored data to the first-stored data.
In other words, the front edge image loss of the image can be adjusted
by changing the document read end position.

(Adjustment procedure)

1) Preparing test chart (Draw a scale at the rear end of one side of
a sheet of A4 white paper or letter paper)

8 – 9

510

DM-1505

2) Set the test chart so that the scale is positioned as shown below,
in the S-D mode and the D-S mode.

Scale (S-D mode) Scale (D-S mode)

3) Execute simulation 50-18 to make a copy and check the front edge
image loss at the area where the scale is printed.
Adjust the setting so that the front edge image loss is less than 4.0
mm in the R-SPF mode.
An increase of 1 in setting represents an increase of 0.1 mm in
image loss.

Front edge of paper

The front edge of the
scale on test chart

less than 4 mm

510

Void area

(Adjustment procedure)
(1) Paper trailing edge void quantity

1) Preparing test chart (Draw a scale at the rear end of one side of
a sheet of A/4 white paper or letter paper)

2) Set the test chart on the document glass as shown below.

Document guide

The trailing edge has a scale

Table glass

3) Using the user simulation [18], set the paper size of the first cas­sette.

Letter paper: 4
A4 paper: 3

4) Execute simulation 50-19 to turn on the TEXT lamp and make the
printing mode in OC-D mode.
Make a copy of the test chart to check the void area of the scale
on the image.

Void position to be check

2nd printing surface where scale is printed (lower side)

B. Adjusting trailing edge void in duplex copyin

mode

This is the adjustment of the first surface printing mode (rear end void)
in duplex copying.
In a duplex copying operation, the paper is delivered starting from the
rear end of the first printing surface. It is therefore necessary to make
a void area at the rear end on the first printing surface to prevent paper
jam at the fusing part.
There are two adjustment modes:

1) Image cut rear end void quantity (R-SPF) 50-19(AE)
The size (length) of a document read from the R-SPF is detected,
the image at the trailing edge of the first printing surface is cut to
make a void area. (The adjustment of void quantity at the time
when the cassette paper size is not recognized.)

2) Paper trailing edge void quantity 50-19 (TEXT)
This adjustment is made when the cassette paper size is recog­nized. The trailing edge void quantity can be adjusted by changing
the trailing edge image laser OFF timing.

The paper void quantity should be first adjusted before the image cut
trailing edge void quantity (R-SPF) is adjusted.

Paper

The trailing edge void on the first printing surface
is shown above.

Adjust the setting so that the void area is 4 - 5 mm.
An increase in 1 of setting represents 0.1 mm in void area.

(2) Image cut trailing edge void quantity (R-SPF)

1) Set the test chart so that the scale is positioned as shown below.

Scale (D-D mode)

2) Execute simulation 50-19 to turn on the AE lamp and make the
printing mode in the D-D mode.

3) Remove and reinsert the cassette.

NOTE: Make sure to carry out this step before making a copy

during this adjustment.

4) Make a copy and check the void area of the scale on the image.

Adjust the setting so that the void area is 2 - 4 mm.
An increase of 1 in setting represents an increase of 0.1 mm in
void area.
l Void position to be checked

8 – 10

[9] SIMULATION TROUBLE CODES

1. List of simulations

The simulations for the AR-F151 (with Fax functions) are shown in bold fonts.

DM-1505

Sim

No.

01 Optical

02 SPF

05 Lamp ON

06 Machine

07 Aging 0106Warm up display and aging with

08 High

10 Other None Toner motor aging

14 Trouble

16 U2 trouble

20 Maintenance

21 Counter

22 Counter

24 Special

25 Main motor

Kind of

main code

system

Individual
load
operation

check

individual
load
operation

voltage
output check

reset

reset

counter
clear

setup
(When
maintenance)

display

counter
clear

ON

Sub

code

01 Mirror scan operation

02

SPF sensor status display

03

Motor ON

04

Paper feed solenoid ON

05

Pressure release solenoid ON
(RSPF)

06

Resist clutch ON (RSPF)

07

Gate solenoid ON (RSPF)

01

Operation panel display check

02

Fusing lamp ON + Cooling fan
HIGH/LOW speed

03

Copy lamp ON

0102Paper feed solenoid ON

Resist solenoid ON

jam
Intermittent aging

01

Developing bias

02

Main charger (Grid high)

03

Grid voltage (Low)

06

Transfer charger

None Cancel troubles other than U2

None Cancel of U2 trouble

01 Maintenance counter clear

01 Maintenance cycle setup

01

Maintenance counter display

02

Maintenance preset value display

04

Jam total counter display

05

Total counter display

06

DV counter display

08

SPF counter display

12

Drum counter display

14

P-ROM version display

17

Copy counter display

18

Printer counter display

21

Scanner counter display

22

SPF jam total counter display

01

Jam total counter clear

04

SPF counter clear

07

Drum counter clear

08

Copy counter clear

09

Printer counter clear

13

Scanner counter clear

14

SPF jam total counter clear

0110Main motor system ON + Cooling

fan low speed (For the duplex
model, the duplex motor is
simultaneously turned on.)
Polygon motor ON

Operation

Sim

No.

26 Various

30 Sensor

43 Fusing

46 Exposure

48 Magnification

50 Lead edge

51 Timing

61 Laser

63 Shading 01 Shading check

64 Self print 01 Self print only with the engine (1

67 14 Program download to PCL PWB

Kind of

main code

setup

operation
check
(Standard
provision)

temperature
setup

adjustment

ratio
correction

adjustment

adjustment

system
operation

Sub

code

01

Manual feed setup

02

SPF setup

03

Second cassette setup

04

Machine duplex setup

06

Destination setup

07

Machine conditions check

20

Rear edge void setup

30

CE mark conformity control
ON/OFF setup

38

Cancel of stop at drum life over

39

Memory capacity setup

40

Polygon motor OFF time setup

42

Transfer ON timing control setup

43

Side void setup

44

SPF document rear edge read
setup (SC only)

01 Paper sensor status display

01

Normal copy

04

Fusing temperature setup 2

05

Duplex mode fusing temperature
setup

09

Postcard size paper fusing control
setup

01 Copy density adjustment

01 Front/rear scan direction

01

Lead edge image position
adjustment
Paper lead edge/rear edge void
adjustment

10

Paper center offset +
OC/Document center offset +
SPF document center offset

18

Memory reverse position
adjustment

19

Duplex copy rear edge void
adjustment

0206Resist quantity adjustment

SPF exposure correction

03 Polygon motor check

(HSYNC output check)

by 2 mode)

Operation

9 – 1

DM-1505

2. Contents of simulations (new or revised simulations only)

Input method: Clear key → Exposure Select key → Clear key → Exposure Select key

Main code Sub code Content

01 01 Mirror scan operation

(Operation/Procedure)

1. When this simulation is executed, the mirror home position is detected.

Sensor name Display lamp

Mirror home position sensor OPC drum cartridge replacement lamp

2. When the _START key is pressed, scanning is executed at the speed corresponding to the currently set copy
magnification ratio.
The copy magnification ratio can be arbitrarily set with the magnification ratio select key/zoom key.

02 02 SPF sensor status display

ON/OFF of the sensors in the SPF can be checked with the following lamps.

Display Sensor
Developer cartridge replacement lamp Document set detection (SPID)
Jam lamp SPF document transport detection (SPPD)
Photoconductor cartridge replacement lamp SPF cover open detection (SCOD)
SPF jam lamp SPF open/close detection (SDSW)

SPF lamp FAX/SPF B4 size detection (SB4D)

FAX document size detection
Paper size detection

03 Motor ON

04 Paper feed solenoid ON

05 Pressure release solenoid ON (RSPF)

06 Resist clutch ON (RSPF)

07 Gate solenoid ON (RSPF)

05 01 Operation panel display check

02 Fusing lamp ON + cooling fan HIGH/LOW speed

03 Copy lamp ON

06 01 Paper feed solenoid ON

02 Resist solenoid ON

(Operation/Procedure)
When the start key is pressed, the SPF motor rotates for 10 sec at the speed corresponding to the currently set
magnification ratio.

(Operation/Procedure)
When the start key is pressed, the SPF paper feed solenoid repeats ON (500 ms) and OFF (500 ms) 20 times.

(Operation/Procedure)
When the start key is pressed, the RSPF document transport solenoid (SPFS) repeats ON (500 ms) and OFF
(500 ms) 20 times.

(Operation/Procedure)
When the start key is pressed, the RSPF resist clutch (SRRC) repeats ON (500 ms) and OFF (500 ms) 20
times.

(Operation/Procedure)
When the start key is pressed, the RSPF gate solenoid (SGS) repeats ON (500 ms) and OFF (500 ms) 20
times.

When the PRINT switch is pressed, the LED on the operation panel is lighted for 5 sec. The LED on the FAX
panel and the LCD balck background are displayed simultaneously.

(Operation/Procedure)
When the START key is pressed, the fusing lamp repeats ON (500ms) and OFF (500msec) 5 times.
During this period, the cooling fan rotates in the high speed mode. After completion of the operation, the cooling
fan rotates in the low speed mode.

(Operation/Procedure)
When the START key is pressed, the copy lamp is lighted for 5 sec.

(Operation/Procedure)
When the START key is pressed, the paper feed solenoid selected by the tray select key repeats ON (500ms)
and OFF (500ms) 20 times.

(Operation/Procedure)
When the START key is pressed, the resist solenoid (RRS) repeats ON (500ms) and OFF (500ms) 20 times.

9 – 2

Main code Sub code Content

07 01 Warm-up display and aging with jam

(Operation/Procedure)

1. When the simulation is executed, warming up is started.

2. Warm-up time is counted and displayed every second on the copy quantity display.

3. After completion of warm-up, the time count is stopped and the ready lamp is lighted.

4. Press the clear key to clear the warm-up time display, set the copy quantity, and press the START key, and
the machine will copy the set quantity repeatedly.

06 Intermittent aging

(Operation/Procedure)

1. When the simulation is executed, warming up is started.

2. After completion of warm-up, the ready lamp is lighted.

3. Set the copy quantity and press the START key, and the machine will copy the set quantity repeatedly.

4. After 3 sec of the interval time from completion of copying the set quantity, the machine will resume copying.

5. The above operation 4 is repeated.

08 01 Developing bias

(Operation/Procedure)
When the START key is pressed, the developing bias is outputted for 30 sec.

02 Main charger (Grid high)

(Operation/Procedure)
When the START key is pressed, the main charger output is supplied for 30 sec in the grid voltage HIGH mode.

03 Grid voltage (Low)

(Operation/Procedure)
When the START key is pressed, the main charger output is supplied for 30 sec in the grid voltage LOW mode.

06 Transfer charger

(Operation/Procedure)
When the START key is pressed, the transfer charger output is supplied for 30 sec.

10 None Toner motor aging

(Operation/Procedure)
When the START key is pressed, the toner motor output is supplied for 30 sec.

14 None Cancel of troubles other than U2

(Operation/Procedure)
After canceling the trouble, the simulation is also automatically canceled.

16 None Cancel of U2 trouble

(Operation/Procedure)

1. When the START key is pressed, the EEPROM total counter check sum is rewritten and the trouble is
canceled.

2. After canceling the trouble, the simulation is also automatically canceled.

20 01 Maintenance counter clear

When the PRINT switch is pressed, the maintenance counter value is cleared and the value of 000000 is
displayed.

21 01 Maintenance cycle setup

The currently set maintenance cycle code is displayed (initial display), and the set data is stored.

Code Setup

0 3,000 sheets
1 6,000 sheets
2 9,000 sheets
3 13,000 sheets
4 18,000 sheets
5 Free (999,999 sheets) ∗ Default

DM-1505

22 01 Maintenance counter display

The display method is the same as the total count value display.

02 Maintenance preset value display

The value corresponding to the code set with SIM 21-01 is displayed. The display method is the same as the
total count value display.

04 Jam total counter display

The display method is the same as the total count value display.

05 Total counter display

The total count value is dispalyed in 3 digits × 2 times repeatedly.
<Display example: 12345>
012 → Blank → 345 → Blank → 012

0.7s 0.3s 0.7s 1.0s 0.7s

9 – 3

DM-1505

Main code Sub code Content

22 06 DV counter display

The display method is the same as the total count value display.

08 SPF counter display

The display method is the same as the total count value display.

12 Drum counter display

The display method is the same as the total count value display.

14 P-ROM versiondisplay

The P-ROM version is displayed in 3 digits on the value display section.
(AR, DM, PCL models: 100% Zoom lamp display)

17 Copy counter display

The display method is the same as the total count value display.

18 Printer counter display

The display method is the same as the total count value display.

21 Scanner counter display

The display method is the same as the total count value display.

22 SPF jam total counter display

The display method is the same as the total count value display.

24 01 Jam total counter clear

When the PRINT switch is pressed, the jam total count value is reset to 0.

04 SPF counter clear

When the PRINT switch is pressed, the SPF count value is reset to 0.

07 Drum counter clear

08 Copy counter clear

09 Printer counter clear

13 Scanner counter clear

14 SPF jam total counter clear

25 01 Main motor system ON + Cooling fan low speed (For the duplex model, the duplex motor is simultaneously

10 Polygon motor ON

26 01 Manual feed setup

When the PRINT switch is pressed, the drum count value is reset to 0.

When the PRINT switch is pressed, the copy count value is reset to 0.

When the PRINT switch is pressed, the printer count value is reset to 0.

When the PRINT switch is pressed, the scanner count value is reset to 0.

When the PRINT switch is pressed, the SPF jam total count value is reset to 0.

turned on.)
(Operation/Procedure)
When the START key is pressed, the main motor is rotated for 30 sec.
To save toner consumption, the different operations are executed depending on installation of the developing unit.

⋅ When the developing unit is installed, the developing bias, the main charger, and the grid are also outputted.
⋅ When the developing unit is not installed, only the motor is rotated.
∗ Do not turn on the door open/close switch forcibly to execute this simulation.

(Operation/Procedure)
When the START key is pressed, the polygon motor is operated for 30sec.

(Operation/Procedure)

1. When this simulation is executed, the currently set bypass code number is displayed.

2. Enter the code number corresponding to the bypass and press the START key, and the setting will be
changed.

Code number Bypass

0 Single bypass
1 Multi bypass

9 – 4

Main code Sub code Content

26 02 SPF setup

When this simulation is executed, the currently set SPF code number is displayed. Enter the code number of the
SPF to be set and press the PRINT switch. The setup is changed.

Code No. SPF

0 Without SPF
1 With SPF (Setup is required when installing FAX.)
2 With RSPF

DM-1505

03 Second cassette setup

04 Machine duplex setup

06 Destination setup

(Operation/Procedure)

1. When this simulation is executed, the currently set code number of the second cassette is displayed.

2. Enter the code number and press the start key. The setting is changed.

Code number Second cassette

0 Without second cassette
1 With second cassette

(Operation/procedure)

1. When this simulation is executed, the currently set duplex code number is displayed.

2. Enter the code number corresponding to the duplex and press the ENTER key, and the setup will be changed.

Code number Duplex

0 Without Duplex
1 With Duplex

(Operation/Procedure)

1. When this simulation is executed, the currently set destination code number is displayed.

2. Enter the code number corresponding to the destination and press the START key, and the setting will be
changed.

Code number Destination

0 Inch series
1 EX AB series
2 Japan AB series

07 Machine conditions check

(Operation/Procedure)
When this simulation is executed, the current machine setting is displayed.

CPM Copy quantity display
10 cpm 10
12 cpm 12
15 cpm 15

20 Rear edge void setup

(Operation/Procedure)

1. When this simulation is executed, the currently set code number of rear edge void setting is displayed.

2. Enter the code number of rear edge void setting and press the START key, and the setting will be changed.

Code number Rear edge void setting

0 Rear edge void allowed
1 Rear edge void not allowed

30 CE mark conformity control ON/OFF setup

(Operation/Procedure)

1. When this simulation is executed, the currently set code number of CE mark application is displayed.

2. Enter the code number of CE mark application and press the START key, and the setting will be changed.

Code number CE mark application setting

0 CE mark application control OFF
1 CE mark application control ON



The machine type is shown with the lamp display.



AL series: None



AR-A series: AE mode lamp ON




AR-B series: TEXT mode lamp ON



DM series: Photo mode lamp ON











9 – 5

DM-1505

Main code Sub code Content

26 38 Cancel of stop at drum life over

(Operation/Procedure)

1. When this simulation is executed, the currently set code number is displayed.

2. Enter the code number and press the START key, and the setting will be changed.

Code number Setting

0 Stop at drum life over
1 Stop cancel at drum life over

39 Memory capacity setup

40 Polygon motor OFF time setup

42 Transfer ON timing control setup

(Operation/Procedure)

1. When this simulation is executed, the currently set code number is displayed.

2. Enter the code number and press the START key, and the setting will be changed.

Code number Setting

0 No memory
1 4 Mbyte
2 6 Mbyte

(Operation/Procedure)

1. When this simulation is executed, the currently set code number is displayed.

2. Enter the code number and press the START key, and the setting will be changed.

Code number Setting

0 0 sec
1 30 sec
2 60 sec
3 90 sec

(Operation / Procedure)

1. When this simulation is executed, the currently set code number is displayed.

2. Enter the code number and press the START key, and the setting will be changed. (For any number different
from the following ones, the default time is automatically set.)

Code number Setting

0 Default (330 msec)
1 –40 msec
2 –30 msec
3 –20 msec
4 –10 msec
5 Default (330 msec)
6 +10 msec
7 +20 msec
8 +30 msec
9 +40 msec

9 – 6

Main code Sub code Content

26 43 Side void setup

(Operation/Procedure)

1. When this simulation is executed, the currently set code number of the side void amount is displayed.

2. Enter the code number and press the start key. The setting is changed.

Code number Setting

00 mm
1 0.5 mm
2 1.0 mm
3 1.5 mm
4 2.0 mm *Default
5 2.5 mm
6 3.0 mm
7 3.5 mm
8 4.0 mm
9 4.5 mm

10 5.0 mm

44 SPF document rear edge read setup + Fax document rear edge scan setup.

When this simulation is executed, the currently set code number is displayed. Enter the desired code number
and press the START key, and the display will be changed. The document rear edge scanning area in SPF
reduction (less than 100%) copy is changed.

DM-1505

The code number is changeable in the range of 0 – 8.
The default value is 4, and 2 mm of the document rear edge is cut.
When the value is changed by 1, the area is changed by 1 mm.

30 01 Paper sensor status display

43 01 Fusing temperature setup (Normal copy)

The paper sensor status is displayed with the lamps on the operation panel.

Display Sensor
Developer cartridge replacement lamp Paper detection before resist (PPD1)
JAM lamp Fusing section paper detection (PPD2)
Photoconductor cartridge replacement lamp Paper exit paper detection (POD)
2nd cassette lamp 2nd CS paper detection (PPD3)
Zoom lamp New drum cartridge detection (PUIS)
AE lamp Single manual feed paper detection (MFD)
Exposure level 1 (Light) lamp Main cassette A4 width detection (PSW1)
Exposure level 5 (Dark) lamp 2nd cassette A4 width detection (PSW2)

(Operation/Procedure)

1. When this simulation is executed, the currently set code number is displayed.

2. Enter the code number and press the START key, and the setting will be changed.

Code number Set temperature (˚C)

0 175
1 180
2 185
3 190
4 195 (∗ Default)
5 200

9 – 7

DM-1505

Main code Sub code Content

43 04 Fusing temperature setup 2

(Operation/Procedure)

1. When this simulation is executed, the currently set code number is displayed.

2. Enter the code number and press the START key, and the setting will be changed.

Code number Set temperature (˚C)

0 155
1 160
2 165
3 170 (∗ Default)
4 175
5 180

05 Duplex mode fusing temperature setup

09 Postcard size paper fusing control setup

46 01 Copy density adjustment

(Operation/Procedure)

1. When this simulation is executed, the currently set code number is displayed.

2. Enter the code number corresponding to the duplex and press the START key. The setting is changed
accordingly.

Code number Shift temperature (˚C)

0 ±0˚C
1 –8˚C
2 –6˚C
3 –4˚C
4 –2˚C
5 ±0˚C
6+2˚C
7+4˚C
8+6˚C
9+8˚C

∗ The above shift temperature set by this simulation is added to the fusing temperature of single copy.

Code number Setup

0 Cancel (Default)
1 Setup

(Outline)
Used to adjust the copy density in each copy mode.(The copy density can be set by changing the set value of
ASIC GAMMA ADJUST register.)
Setting in each copy mode is performed at exposure level 3. When the copy density (exposure) is adjusted
arbitrarily, the max, and min. exposure levels are automatically calculated and set. (The change amounts
(gradient, change amount) at level 1 – 5 are predetermined.)
(Operation/Procedure)

1. When this simulation is executed, warming up and shading are performed and the current set value is
displayed in two digits.

2. Press the copy mode select key to select each setting mode and setting display.
∗ The copy mode setting is indicated with the following lamps as shown below.

3. Change the setting with the value up-down key and press the START key, and a copy will be made with the
entered set value.

4. Press the clear key to store the set value and exit the simulation.

Copy mode Display lamp
AE mode AE mode lamp
TEXT mode TEXT mode lamp
PHOTO mode PHOTO mode lamp
TS mode (TEXT) TEXT mode lamp & PHOTO mode lamp
TS mode (AE) AE mode lamp & PHOTO mode lamp

9 – 8

Main code Sub code Content

46 01

48 01 Front/rear scan direction

Relationship between the displayed values and the GAMMA ADJUST register

Exp1 Exp2 Exp3 Exp4 Exp5
AE –24 –12 0 +12 +24
TEXT –24 –12 0 +12 +24
PHOTO –24 –12 0 +12 +24
T/S –24 –12 0 +12 +24

The value displayed after execution of this simulation can be set in the range of 0 – 99 with 50 as the center
value.
When the text mode set value is Gat3, for example, the GAMMA ADJUST register value set at Exp1 is:
Text Exp1 = Gat3 – 50 – 24
When 40 is set to Gat3, Text Exp1 = 40 – 50 – 24 = –34
Then set the GAMMA ADJUST register set value to –34.
Perform the same procedure for each mode and each Exp.

∗ The above table may subject to change.
∗ For the gradient, there is a similar table, though not specified here. The value set with SIM 46, however, is

not reflected.
∗ The AE mode Exp selection is not specified, but corresponds to the grades for AE exposure selection in the
former models.

(Outline)

(1) Front/rear scanning direction magnification ratio auto correction: (Performed by changing the set value of

ZOOM DATA register for asic.) The width of the reference line marked on the shading correction plate is
scanned to perform the front/rear direction magnification ratio adjustment automatically. (Performed by
changing the set value of ZOOM DATA register for ASIC.)

(2) Front/rear scanning direction magnification ratio manual correction: Used to set the front/rear (main scanning)

direction magnification ratio by key operations. (Performed by changing the set value of ZOOM DATA
register for ASIC.)

(3) Scanning direction magnification ratio correction: The scanning direction magnification ratio in the OC mode is

set by key operations. (Performed by changing the scanning speed.)

(4) SPF mode scanning direction magnification ratio correction: The scanning direction magnification ratio in the

OC mode is set by key operations. (Performed by changing the scanning speed.)

(Operation/Procedure)

1. When this simulation is executed, the current set value is displayed in two digits. (Center value: 50)

2. When the copy mode select key is pressed, the setting mode and the setting display are changed
sequentially.
∗ The selected adjustment mode is indicated by the lamps as follows:

3. In the front/rear scanning direction adjustment, when the START key is pressed, the mirror base unit moves
to the white plate for shading and the width of the reference line is read and the correction value is
calculated and displayed and the value is stored.
In the case of the manual adjustment, enter the adjustment value with the 10-key and press the START key.
Then the entered value is stored and a copy is made. (An increase of 1 in the set value corresponds to an
increase of 1&.)

4. Press the clear key to store the set value and exit the simulation.

DM-1505

Adjustment mode Lamps ON
Front/rear direction magnification ratio auto correction AE lamp
Front/rear direction magnification ratio manual correction TEXT lamp
Scanning direction magnification ratio correction PHOTO lamp
SPF mode scanning direction magnification ratio correction AE, TEXT, PHOTO lamps

In the front-rear direction magnification ratio correction:

(1) The result of calculation of the scan correction value is ±5% or less, “- -” is displayed.

(Cause) The white plate reference position error or the lens unit installing error

(2) In case of a scanning error of the reference line, the JAM lamp is turned on.

(Cause) CCD error or no white plate
∗) If the automatic correction of magnification ratio does not work properly, adjust and correct manually.

9 – 9

DM-1505

Main code Sub code Content

50 01 Lead edge image position adjustment + Paper lead edge/rear edge void adjustment

(Outline)
This adjustment is used to adjust the copy image position and lead edge/rear edge void amount on the copy
paper by adjusting the image scan start position and the print start position (resist roller ON timing) at 100%.
(Operation/Procedure)

1. When this simulation is executed, the currently set value is displayed in two digits. (Center value: 50)

2. When the copy mode select key is pressed, each setting mode and the display are changed.

∗ The selected adjustment mode is indicated by the lamps as shown in the table below.

3. Enter the adjustment value with the 10-key and press the start key. The set value is stored and a copy is
made. (When the set value is increased by 1, the void amount is shifted by 0.1 mm.)

4. When the clear key is pressed, the set value is stored and the simulation mode is terminated.

Adjustment mode Lighting lamps
Print start position (Main cassette) AE, Main cassette lamps
Print start position (2nd cassette) AE, 2nd lamps
Print start position (Manual paper feed) AE, Manual feed lamps
Image lead edge void quantity TEXT lamp
Image scan start position PHOTO lamp
Image rear edge void quantity AE, TEXT, PHOTO lamps
SPF image scan start position AE, TEXT lamps

(Adjustment method)

1. Set the print start position (A: AE ON), the lead edge void amount (B: TEXT ON), the scanning start position
(C: PHOTO ON) to zero and make a copy of a scale at 100%.

2. Measure the image loss R (mm) of the scale.
Set as C = 10 × R (mm). (Example: Set to 30.)

∗ When C is increased by 10, the image loss is decreased

by 1 mm. (Default: 5)

3. Measure the distance H (mm) from the paper lead edge to
the image print start position.
Set as A = 10 × R (mm). (Example: Set to 50.)

(Example)

Distance from the paper
lead edge to the image
H = 5mm

Image loss
R = 3mm

∗ When the value of A is increased by 10, the image lead

edge is shifted toward the paper lead edge by 1 mm.
(Default: 50)

4. Set the lead edge void amount as B = 50 (2.5 mm).
(Default: 50)

∗ When the value of B is increased by 10, the void is

increased by about 1 mm.
(For 25 or less, however, the void amount becomes zero.)

✩ The SPF adjustment is made by adjusting the SPF image scan start position immediately after turning on the

power.

9 – 10

Main code Sub code Content

50 10 Paper center offset + OC/Document center offset + SPF document center offset

(Outline)
The center offset position of copy image on the copy paper and that of document scan are adjusted by
adjusting the scan left margin of ASIC and the print left margin register set value.
(Operation/Procedure)

1. When this simulation is executed, the currently set value is displayed.

2. For a machine with a multi manual paper feed unit installed, when the copy mode select key is pressed, each
set mode and display are changed.
For a machine with a single manual paper feed unit installed, when the copy mode select key is pressed,
each set mode and display are changed.

✩ Machine with a multi manual paper feed unit

Adjustment mode Display lamp
Print center offset (Main cassette paper feed) AE, main cassette lamp
Print center offset (2nd cassette paper feed) AE, 2nd cassette lamp
Print center offset (Manual paper feed) AE, Manual paper feed lamp
OC/Document center offset AE, TEXT lamp
SPF/Document center offset AE, TEXT, PHOTO lamp

✩ Machine with a single manual paper feed unit

Adjustment mode Display lamp
Print center offset (Main cassette paper feed) AE, Main cassette lamp
Print center offset (Manual paper feed) AE lamp (Blinking)
OC/Document center offset AE, TEXT lamp
SPF/Document center offset AE, TEXT, PHOTO lamp

DM-1505

18 Memory reverse position adjustment in duplex copy

When this simulation is executed, the currently set correction value is displayed. Enter the desired correction
value with the 10-key and press the print key. The entered value is stored. (The correction value ranges from 1
to 99. 0 or 50 for zero correction.)
Front print in the S-D mode and even page print in the D-S mode are performed with reverse memory operation
from the rear of the original. When, therefore, the print position adjustment of the output image is required,
perform the adjustment as follows:
The image direction in reverse memory copy is shown in Fig. 1. When the original scanning is made in the
arrow direction, output images are printed from the rear edge of scanning.
If, therefore, the print lead edge is shifted, set the reference chart so that the reference position is in the rear
and use this simulation to change the simulation set value so that the lead edge of print images comes in the
proper position.
Printing is started at the print start position and executed from the final memory image data to the head data.
By changing the position of the end data stored in memory with the simulation set value, the image lead edge
position is adjusted and the read edge position of scanning is changed.
Therefore, the end position of scanning is changed by the simulation set value to change the position of the end
data stored in memory. The image lead edge is adjusted in this manner.

Original transport direction

Lead edge of scanning

End position of scanning
(Default: Scan cut by void(1))

Rear edge of scanning

Scanning direction

Paper transport direction

Print lead edge
Lead edge void (1)

Print start position

Rear edge void

Print rear edge

9 – 11

DM-1505

Main code Sub code Content

50 19 Duplex copy rear edge void adjustment

Used to adjust the rear edge void in duplex copy.
(Operating procedure)
When this simulation is executed, the currently set value is displayed in 2 digits.
When the copy mode select key is pressed, the set mode and the display are switched sequentially.
Enter the adjustment value with the 10-key and press the print key, and the entered value is stored and a copy
is made. When the clear key is pressed, the entered value is stored and the simulation mode is terminated.
(When the set value is increased by 1, the void is increased by about 0.1mm.)

Adjustment mode Lamp ON
Image cut rear edge void (RSPF) AE lamp
Paper rear edge void TEXT lamp

51 02 Resist quantity adjustment

Used to adjust the contact pressure of paper onto the copier resist roller and the RSPF resist roller.
(Operation/Procedure)

1. When this simulation is executed, the currently set value is displayed.

2. In a machine with the multi paper feed unit installed, press the copy mode select key, and each setting mode
and display are changed sequentially.
In a machine with the single paper feed unit installed, press the copy mode select key, and each setting
mode and display are changed sequentially.
∗ The selected adjustment mode is indicated by the lamps as follows:

3. Enter the adjustment value with the 10-key and press the SORT key. Then the set value is stored and a copy
is made.

4. Press the clear key to store the set value and exit the simulation.

∗ Machine with the multi manual paper feed

Adjustment mode Display lamp
Main cassette paper feed AE, Main cassette lamp
2nd cassette paper feed AE, 2nd cassette lamp
Manual paper feed AE, Manual paper feed lamp
RSPF document feed (front) AE, TEXT, PHOTO lamp
RSPF document feed (back) AE, TEXT lamp
Duplex back TEXT, PHOTO lamp

∗ Machine with the single manual paper feed

Adjustment mode Display lamp
Main cassette paper feed AE, Main cassette lamp
Manual paper feed AE blinking (Main cassette lamp ON)
RSPF document feed (front) AE, TEXT, PHOTO lamp
RSPF document feed (back) AE, TEXT lamp
Duplex back TEXT, PHOTO lamp

06 SPF exposure correction

61 03 Polygon motor check (HSYNC output check)

(Outline)
The APF exposure correction amount is adjusted by adjusting the change in Vref voltage for the OC mode.
(Operation/Procedure)

1. When this simulation is executed, the currently set value is displayed.

2. Enter the adjustment value with the 10-key and press the start key. The entered value is stored and a copy is
made.

∗ When the adjustment value is changed by 1, the D/A output is changed by +1 digit (dark) for OC

exposure. When it is changed by –1, the output is changed by –1 digit (light).

3. When the clear key is pressed, the entered value is stored and the simulation mode is terminated.

(Operation/Procedure)
When the START key is pressed, HSYNC is performed and the polygon motor is rotated for 30 sec.
At that time, the Zoom lamp is lighted for 100msec e3very time when HSYNC is detected.

9 – 12

Main code Sub code Content

63 01 Shading check

(Outline)
Used to display the detection level of the white plate for shading. (Vref of AD conversion IC is fixed.)
(Operation/Procedure)
When the START key is pressed, the mirror base unit moves to the white plate for shading and Vref+ voltage of
AD conversion IC is set to 4.5V and Vref- voltage to 0.5V, and the copy lamp is lighted.
This state is kept for 10 sec, and the level of one pixel at the center is detected every second to display on the
value display section.

64 1 Self print only with the engine (1 by 2 mode)

(Outline)
Used to print in the 1 by 2 mode by ignoring the state of the optical system.
(Operation/Procedure)

1. When this simulation is executed, warming up is made and the ready lamp is lighted.

2. Select with the cassette select key and press the start key. Paper is fed from the selected cassette and
printing is performed.

In the 1 by 2 mode, one line is printed and two lines are not printed.

67 14 PCL PWB program download

Used to download the PCL PWB control program.
(Operation/Procedure)

1. Download procedures

1) When the simulation code is entered, the Ready lamp lights up and the Online lamp goes off.

2) When the PRINT switch is pressed, the Read lamp goes off and the Flash ROM data deleting operation is
started.

3) After completion of deletion, the Online lamp lights up.

4) Enter the DOS mode PC, and execute “COPY/Bxxxx.BIN LPT:”, and downloading is started. The Online
lamp blinks.

5) After completion of downloading, perform the SUM check.
If there is no problem, the Online lamp goes off and the Ready lamp lights up. If there is any problem,
“F9-10: PCL PWB trouble” is displayed.

6) Turn OFF/ON the power.

2. When downloading is failed, turn OFF/ON the power and perform the download procedures of 1 again.

3. Necessary items for Flash downloading

1) PC

2) Parallel cable

3) Program data file

DM-1505

3. TROUBLE CODES

A. Trouble codes list

Main

Sub

code

code

E7 01 Duplex model memory setup error,

memory not-detected error

E7 03 HSYNC not detected. LSU (laser diode, reception element, APC circuit) trouble

E7 04 CCD white level trouble CCD drive circuit (CCD PWB, ASIC harness) trouble

E7 05 CCD black level trouble CCD drive circuit (CCD PWB, ASIC, harness) trouble

E7 12 Shading trouble (White correction) Dirt on white plate for scanning white level

E7 14 ASIC connection trouble Improper connection between CPU and ASIC (pattern cut, improper connection of lead

E7 15 Copy lamp disconnection trouble Copy lamp or copy lamp drive circuit (invertor PWB) trouble Copy lamp disconnection

L1 00 Feeding is not completed within

the specified time after starting
feeding.

L3 00 Return is not completed within the

specified time.

Trouble content Detail of trouble

The memory is not set properly or the memory capacity is not set to the duplex setup
(6M).
Cancel method: Set SIM 26-39 code number to 2.

LSU drive circuit (ASIC) trouble

Copy lamp lighting trouble (Copy lamp, invertor PWB)

pin)

When the mirror base is returned for the specified time (6 sec) in mirror initializing
after turning on the power, the mirror home position sensor (MHPS) does not turn
OFF. Or when the mirror base is fed for the specified time (about 6 sec) after start of
copy return, the mirror home position sensor (MHPS) does not turn OFF.

When the mirror base is returned for the specified time (6 sec) in mirror initializing
after turning on the power, the mirror home position sensor (MHPS) does not turn
ON.Or when the mirror base is returned for the specified time (about 6 sec) after start
of copy return, the mirror home position sensor (MHPS) does not turn ON.

9 – 13

DM-1505

Main
code

Main
code

Sub

code

L4 01 Main motor lock When the main motor encoder pulse is not detected for 100msec.

L6 10 Polygon motor lock The lock signal (specified rpm signal) does not return within a certain time (about

H2 00 Thermistor open detection The fusing thermistor is open.

H3 00 Heat roller abnormally high

temperature

H4 00 Heat roller abnormally low

temperature

U2 01 Counter sum check error When the counter check sum value stored in the EEPROM is abnormal.

U2 04 EEPROM serial communication

error

Sub

code

F9 10 Content Printer PWB trouble

Detail Communication trouble between

Cause Printer PWB connector

Check
and
remedy

80 Content Printer PWB communication trouble

Detail Communication trouble between

Cause Printer PWB connector

Check
and
remedy

81 Content Printer PWB communication trouble

Detail Communication trouble between

Cause Printer PWB connector

Check
and
remedy

82 Content Printer PWB communication trouble

Detail Communication trouble between

Trouble content Detail of trouble

20sec) from starting the polygon motor rotation

The fusing temperature rises above 240˚C.

The fusing temperature does not reach 185˚C within 27 sec of turning on the power,
or the fusing temperature keeps at 140˚C.

When a communication trouble occurs with the EEPROM.

Main

Detail of trouble

MCU and PRT

disconnection
Printer unit PWB MCU PWB
harness failure
Printer PWB ROM defect, data
failure

Check the connectors and harness
of the printer PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the printer PWB.

(protocol)

MCU and printer PWB (Protocol
error)

disconnection
Printer PWB MCU PWB harness
failure
Printer PWB ROM defect, data
failure

Check the connectors and harness
of the printer PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the printer PWB.

(Parity)

MCU and printer PWB (Parity error)

disconnection
Printer PWB MCU PWB harness
failure
Printer PWB ROM defect, data
failure

Check the connectors and harness
of the printer PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the printer PWB.

(Overrun)

MCU and printer PWB (Overrun
error)

9 – 14

Sub

code

code

F9 82 Cause Printer PWB connector

Check
and
remedy

84 Content Printer PWB communication trouble

Detail Communication trouble between

Cause Printer PWB connector

Check
and
remedy

88 Content Printer PWB communication trouble

Detail Communication trouble between

Cause Printer PWB connector

Check
and
remedy

U2 40 Content Serial communication error with

F2 04 Content Toner cartridge error (Use of toner

Detail of trouble

disconnection
Printer PWB MCU PWB harness
failure
Printer PWB ROM defect, data
failure

Check the connectors and harness
of the Printer PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the Printer
PWB.

(Framing)

MCU and printer PWB (Framing
error)

disconnection
Printer PWB MCU PWB harness
failure
Printer PWB ROM defect, data
failure

Check the connectors and harness
of the Printer PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the Printer
PWB.

(Time-out)

MCU and printer PWB (Time-out
error)

disconnection
Printer PWB MCU PWB harness
failure
Printer PWB ROM defect, data
failure

Check the connectors and harness
of the Printer PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the Printer
PWB.

memory device chip

cartridge is inhibited.)

DM-1505

[10] USER PROGRAM

The conditions of factory setting can be changed according to the use conditions.

Functions which can be set with the user program

Function Contents Factory setting

●

When a certain time is passed after completion of copying, this function returns to the initial state

Auto clear.

Pre-heat.

Auto shut off passing
time.

Stream feeding. Only models with SPF. Set

Auto shut off setting

∗Note: The power consumption values in pre-heat and auto shut off may be varied depending on the use conditions.

automatically. The time to reach the initial state can be set in the range of 30 sec to 120 sec by
the unit of 30 sec. This function can be disabled.

●

When the copier is left unused with the power ON, the power consumption is automatically reduced
to about 40Wh/H (∗ Note).
The time to start this function can be set in the range of 30 sec to 90 sec by the unit of 30 sec.
This function cannot be disabled.

●

When this function is operated, the pre-heat lamp on the operation panel lights up.
To return to the initial state, press any key on the operation panel. (When the COPY button is
pressed, a copy is made after returning to the initial state.)

●

When the copier is left unused with the power ON, the power consumption is automatically reduced
to about 18Wh/H (∗ Note). The time to start this function can be set in the range of 2 min to 120
min.

●

When this function is operated, all the lamps except for the pre-heat lamp on the operation panel
turn off.
To return to the initial state, press the COPY button.

●

Used to set or cancel this function. Set

60 sec

90 sec

5 min

Change the setting.

Example: Changing the time to operate the auto shut off function

1. Press the right and the left exposure adjustment

● Keep pressing the keys for five sec.

● Display lamps ( , , , blink simultaneously and “- -”

2. Select the function code with the 10-digit key

● The number of the selected function blinks on the digit of 10 on the

● For auto clear, select “1.”

● For setting, refer to the following function codes.

Function
name

Auto clear

(Change from 60 sec to 90 sec)

keys simultaneously to start setting.

is displayed on the copy quantity display.

(copy quantity set key).

copy quantity display.

Set code

0 (Cancel)

1 (30 sec) 1 (60 sec) ∗1 (5 min) ∗1 (Setting) ∗1 (Setting)

∗2 (60 sec) ∗2 (90 sec) 2 (15 min)

3 (90 sec) 3 (30 min)

4 (120 sec) 4 (60 min)

5 (10 sec) 5 (120 min)

Function
name

Pre-heat

Set code

0 (30 sec)

Function
name

Auto shut
off

Function name Function code

Auto clear 1

Pre-heat 2

Auto shut off passing time 3

Stream feeding 4

Auto shut off setting 5

[Cancel] If a wrong code is entered, press the clear key and enter the

correct function code.

✽ SPF only

✽

3. Press the COPY button.

● The number blinking on the digit of 10 of the coyp quantity display
is lighted.

● The number of the current set code blinks on the digit of 1.

4. Select the setting code with 1-digit key (copy

quantity set key).

● To set to 90 sec, select “3.”

● For setting, refer to the following set codes.

Set code

0 (2 min)

Function
name

Stream
feeding

Set code

0 (Cancel)

Function
name

Auto shut
off setting

Set code

0 (Cancel)

∗ : Factory setting

● The number of the selected set code blinks on the digit of 1 of the
copy quantity display.

[Cancel] When a wrong number of the function code is set, press the

clear key and perform the procedure again from 2.

5. Press the COPY button.

● The number blinking on the digit of 1 of the copy quantity display
is lighted up. This means the setting is completed.

[Note] To set another function, press the clear key after completion of

this operation and perform the procedure from 2.

6. Press either one of exposure adjustment keys
( or ) to complete the setting.

● Display lamps ( , , , ) go off and the copy quantity

display returns to the normal state.

10 – 1

DM-1505

[11] ELECTRICAL SECTION

1. Block diagram

A. Overall block diagram

PSW1

Other Inputs

MHPS RTH TCS

PSW2

POD PPD1 PPD2

MMLD MHPS CED1

CED2

DVSEL SDOD

HL

Print MEMORY

CN9

CN16

Toner Motor

CN15

JITTER

SYNC IC

PCL/USB

UNIT

CN5

AND

ASIC

AND

UART

CRSM UNIT

INTERLOCK SWITCH

CPU

CN3

CN3

AC PWB

RESET IC

TC

BIAS HLOUT

FM

3.3V

12V

5V

PR

GRIDL

MC

High Voltage

GND

Power

5V

24V

MCU PWB

EEPROM

SRAM

Control Unit

UNIT

AC INPUT

SRAM

Reference AND

CN26

SPF(DM-1500),

CN30

CCD

UNIT

R-SPF(DM-1505)

MCU PWB Overall block diagram

CN23

LASER

Printed

Visual Data

AND

LSU

Other Loads

MAIN

MIRROR

MOTOR

11 – 1

AND

MOTOR

VFM

RRS

MPFS

CPFS1

COPY

LAMP

Motor

Duplex

(DM-1505 Only)

CN20

EPROM

OPE PANEL

CN

902

CRU

Reset

Switch

B. MCU PWB unit

DM-1505

CCD PWB

SDOD

SPF UNIT

SPPD

GDI

UNIT

GDI/USB

HSYNC

(LSU)

LASER UNIT

POLYGON

MOTOR

/FAXPRQ

FAX PWB

etc..

CCDHI

CCDLO

etc..

/SPFS

/SPUS

/SRRC

SPID

SB4D

MEMORY

USB-IN

USB-EN

USB-ON

S/H

/LDEN

/VIDEO

/PMD

PMCLK-A

PMRDY

/FAXCS

/FAXACK

/FAXREQ

/SCANST

/PRSTART

CRSM UNIT

CN30CN31

CN26

/SGS

CN15 CN16

GDI-IN

/1284-EN

CN23

etc..

CN5

etc..

/POFF

/FRTS

DV SENSOR

DVSEL

IC109

IC110

IC13 IC12

IC104

IC105

/CED1

CN1

CN7

DEVELOPING BIAS

/BIAS

CN17

CN17

IC105

IC103

IC105

IC8

IC106

IC111

IC8

IC106

IC105

IC3

IC104

IC103

PSW1

/CPFS1

/CED2

CN10

MAIN CHARGER

GRID CONTROL

TRANSFER CHARGER

HIGH VOLTAGE

CONTROL UNIT

IC16

IC2

IC3

IC102

PSW2

/CPFS2

CN6

ELECTRIC

SOURCE

FW

CN3

IC113

IC113

IC10

ASIC

(HG73CO25FD)

IC9

POWER

RELAY

/PR

IC3

CPU

(H8S/2350)

HEATER

LAMP

HLOUT

IC8

IC105

CN12

MFD

THERMISTOR

FTH

IC3

IC3

CN11

/MPFS

INTERLOCK

INTERLOCK

5V(DSWS)

24V(DSWS)

CN4

IC109

IC103

IC105

CN22

POD

/RRS

RTH-IN

IC101

IC105

IC8

IC106

PAPER DETECTOR2

(In FUSER UNIT)

PPD2

CN13

PPD1

IC103

CN14

/CL

IC2IC3IC105IC12

CN25CN21

VFMOUT

TMa-O

CN9

TMb-O

IC1

TCS

CN17

CN28

MHPS

/MM

CN18 CN27

MMLD

IC103IC108 IC113

OP-CLK

OP-LATCH

CN20

KIN1

PSW

PAPER DETECTOR1

(Near RESIST ROLLER)

COPY

LAMP

/VFMCNT

VENCH RATION

FAN MOTOR

TONER

MOTOR

TONER

CONTROL

SENSOR

MIRROR

MOTOR

MIRROR

HOME

POSITION

SENSOR

MAIN

MOTOR

MAIN

MOTOR

LOCK

DETECTOR

OP-DATA

KEY

OPE PWB

KIN2

DRST

NEW PROCESS UNIT SENSOR

DM-1505 MCU PWB UNIT

TRAY EMPTY

FAX OPE PWB

DETECTOR

PAPER FEED

SOLENOID

PAPER

CASSETTE1

TRAY EMPTY

PAPER WIDTH

DETECTION

DETECTOR

PAPER FEED

SOLENOID

PAPER

CASSETTE2

PAPER WIDTH

DETECTION

11 – 2

PAPER

DETECTOR

PAPER FEED

MANUAL

PAPER

SOLENOID

RESIST ROLLER

FEED

PAPER EXIT

SOLENOID

DETECTOR

DM-1505

2. Circuit descriptions

A. Man PWB (MCU)

(1) CPU signal table

PIN

No.

Signal

code

1 /CS1 Output Chip Select for SRAM

2 /CS0 Output Chip Select for EPROM

3 D-GND

4 D-GND

55V

6 A0 Output Address Bus (NC-pull up)

7 A1 Output Address Bus

8 A2 Output Address Bus

9 A3 Output Address Bus

10 D-GND

11 A4 Output Address Bus

12 A5 Output Address Bus

13 A6 Output Address Bus

14 A7 Output Address Bus

15 A8 Output Address Bus

16 A9 Output Address Bus

17 A10 Output Address Bus

18 A11 Output Address Bus

19 D-GND

20 A12 Output Address Bus

21 A13 Output Address Bus

22 A14 Output Address Bus

23 A15 Output Address Bus

24 A16 Output Address Bus

25 A17 Output Address Bus

26 A18 Output Address Bus

27 A19 Output Address Bus (NC-pull up)

28 D-GND

29 A20 Output Address Bus (NC-pull up)

30 NC-pull up

31 (SPPD)

32 USB-IN Input USB Connector-In Detect

33 (MHPS)

/CPU

34

SYNC

35 D-GND

36 D-GND

37 ZC

38 /ASICINT

Input/output Operating

Interruption

level input

Interruption

level input

Interruption

level input

Interruption

level input

Interruption

level input

SPF Paper Pass Detector

Mirror Home Position Sensor

Horizontal Synchronous (from
G/A)

Zero-cross signal

Intterupt from G/A

PIN

No.

Signal

code

39 5V

40 D0

41 D1

42 D2

43 D3

44 D-GND

45 D4

46 D5

47 D6

48 D7

49 D8

50 D9

51 D10

52 D11

53 D-GND

54 D12

55 D13

56 D14

57 D15

58 5V

(OP-

59

DATA)

60 FTXD Output TXD for Additional Board

61 FRTS Output RTS for Additional Board

62 FRXD Input RXD for Additional Board

63 (OP-CLK) Output Clock for Operation Panel

64 TMON Output

65 D-GND

66 FCTS Input CTS for Additional Board

67 D-GND

68 D-GND

Input/output Operating

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Data

input/output

Output

Data Bus

Data Bus

Data Bus

Data Bus

Data Bus

Data Bus

Data Bus

Data Bus

Data Bus

Data Bus

Data Bus

Data Bus

Data Bus

Data Bus

Data Bus

Data Bus

Data Signal for Operation
Panel

Power Supply Signal for Toner
Motor Driver IC

11 – 3

DM-1505

PIN

100 D-GND

101 SCLK Output Clock Line for EEPROM

102 SDA Output Data Line for EEPROM

103 A5V

104 Analog Reference Voltage-A5V

105 RTH Analog input Fusing Thermister

106

107 SIN1 Input Sensor input 1

108 SIN2 Input Sensor input 2

109 SIN3 Input Sensor input 3

Signal

No.

69 PSW Input Print switch input

70 KIN1 Input Key input 1

71 KIN2 Input Key input 2

72 TMCLK Timer output Clock for Toner Motor

73 /TMEN Output On-Off Control for Toner Motor

74 /POFF Output

75 PMCLK Timer output Clock for Polygon Motor

76

77 /SCANSP Output Scaning Stop Signal

78 /SCANST Output Scaning Start Signal

79 HL

80

81 RES- Input Reset

82 Input pull up

83 Input pull up

84 5V

85 XTAL Clock

86 EXTAL Clock

87 D-GND

88 CPUCLK Output System Clock for G/A

89 5V

90 /AS Output pull up

91 /RD Output Read Signal

92 /HWR Output Write Signal (High Address)

93 /LWR Output Write Signal (Low Address)

94 SELIN3 Output Input select 3

95 SELIN2 Output Input select 2

96 SELIN1 Output Input select 1

97 PR Output Power relay control PR

98 RRS Output Resist roller solenoid RPC

99 D-GND

code

/PRSTART

WDTOVF-

Input/output Operating

Power Off Signal for
Additional Board

Output Printing Start Signal

Output

(Timer

output)

Output Watchdog Timer

On-Off Control for Heatrer
Lamp

PIN
No.

110 SIN4 Input Sensor input 4

111 DAH

112 DAL

113 AN-GND

114 D-GND

115 DMT-3 Motor output Duplex Motor Excitement

116 DMT-2 Motor output Duplex Motor Excitement

117 DMT-1 Motor output Duplex Motor Excitement

118 DMT-0 Motor output Duplex Motor Excitement

119 MRMT3 Motor output Mirror Motor Excitement

120 MRMT2 Motor output Mirror Motor Excitement

121 MRMT1 Motor output Mirror Motor Excitement

122 MRMT0 Motor output Mirror Motor Excitement

123 Input

124 Input

125 Input

126 NC-pull up

127 DRST Input Drum reset detection

128 /CS2 Output Chip Select for ASIC

∗ The signals which are hatched are added or revised to or from the

AL-1000.

Signal

code

Input/output Operating

Analog

output

Analog

output

Reference Voltage (High) for
CCD

Reference Voltage (Low) for
CCD

CPU MODE SET <MODE 4> ­GND

CPU MODE SET <MODE 4> ­GND

CPU MODE SET <MODE 4> ­Vcc

11 – 4

DM-1505

(2) ASIC (Signal table)

PIN No. Signal name IN/OUT Connected to Description

1 /SCANSP IN CPU (I/O) Scanner process interrupt signal

2 /PRSTART IN CPU Print start trigger signal

3 /TMEN IN CPU Toner motor ON/OFF

4 TMCLK IN CPU Toner motor reference clock

5 3.3V Power

6 CPUAD7 IN CPU CPU address bus

7 CPUAD6 IN CPU CPU address bus

8 GND Power

9 CPUAD5 IN CPU CPU address bus

10 CPUAD4 IN CPU CPU address bus

11 CPUAD3 IN CPU CPU address bus

12 CPUAD2 IN CPU CPU address bus

13 CPUAD1 IN CPU CPU address bus

14 /CPUSYNC OUT CPU Horizontal synchronization signal

15 /ASICINT OUT CPU Interruption request signal

16 /CS2 IN CPU CPU chip select signal

17 /RESET IN RESET IC Reset signal

18 5V Power

19 GND Power

20 3.3V Power

21 GND Power

22 MDATA15 IN/OUT DRAM Data bus of DRAM (page memory)

23 MDATA14 IN/OUT DRAM Data bus of DRAM (page memory)

24 MDATA13 IN/OUT DRAM Data bus of DRAM (page memory)

25 MDATA12 IN/OUT DRAM Data bus of DRAM (page memory)

26 MDATA11 IN/OUT DRAM Data bus of DRAM (page memory)

27 MDATA10 IN/OUT DRAM Data bus of DRAM (page memory)

28 MDATA9 IN/OUT DRAM Data bus of DRAM (page memory)

29 MDATA8 IN/OUT DRAM Data bus of DRAM (page memory)

30 MDATA7 IN/OUT DRAM Data bus of DRAM (page memory)

31 3.3V Power

32 MDATA6 IN/OUT DRAM Data bus of DRAM (page memory)

33 MDATA5 IN/OUT DRAM Data bus of DRAM (page memory)

34 GND Power

35 MDATA4 IN/OUT DRAM Data bus of DRAM (page memory)

36 MDATA3 IN/OUT DRAM Data bus of DRAM (page memory)

37 MDATA2 IN/OUT DRAM Data bus of DRAM (page memory)

38 MDATA1 IN/OUT DRAM Data bus of DRAM (page memory)

39 MDATA0 IN/OUT DRAM Data bus of DRAM (page memory)

40 /RAS0 OUT DRAM RAS signal 0 of DRAM (page memory)

41 /RAS1 OUT DRAM RAS signal 1 of DRAM (page memory)

42 /RAS2 OUT DRAM RAS signal 2 of DRAM (page memory)

43 /RAS64 OUT

44 3.3V Power

45 /RAS16 OUT

46 MAD0 OUT DRAM Address bus of DRAM (page memory)

DRAM control (for
panther)

DRAM control (for
panther)

(Reserved)

(Reserved)

11 – 5

PIN No. Signal name IN/OUT Connected to Description

47 GND Power

48 MAD1 OUT DRAM Address bus of DRAM (page memory)

49 MAD2 OUT DRAM Address bus of DRAM (page memory)

50 MAD3 OUT DRAM Address bus of DRAM (page memory)

51 MAD4 OUT DRAM Address bus of DRAM (page memory)

52 MAD5 OUT DRAM Address bus of DRAM (page memory)

53 MAD6 OUT DRAM Address bus of DRAM (page memory)

54 MAD7 OUT DRAM Address bus of DRAM (page memory)

55 MAD8 OUT DRAM Address bus of DRAM (page memory)

56 MAD9 OUT DRAM Address bus of DRAM (page memory)

57 3.3V Power

58 MAD10 OUT DRAM Address bus of DRAM (page memory)

59 MAD11 OUT DRAM Address bus of DRAM (page memory)

60 GND Power

61 /CAS0 OUT DRAM CAS signal of DRAM (page memory)

62 /CAS1 OUT DRAM CAS signal of DRAM (page memory)

63 /OE OUT DRAM Read enable signal of DRAM (page memory)

64 /WE OUT DRAM Write enable signal of DRAM (page memory)

65 OUTD0 OUT Reserved

66 OUTD1 OUT Reserved

67 OUTD2 OUT Reserved

68 OUTD3 OUT Reserved

69 3.3V Power

70 OUTD4 OUT Reserved

71 OUTD5 OUT Reserved

72 GND Power

73 OUTD6 OUT Reserved

74 OUTD7 OUT Reserved

75 OUTD8 OUT Reserved

76 OUTD9 OUT Reserved

77 OUTD10 OUT Reserved

78 OUTD11 OUT Reserved

79 OUTD12 OUT Reserved

80 OUTD13 OUT Reserved

81 OUTD14 OUT Reserved

82 OUTD15 OUT Reserved

83 /HSYNC OUT PCL board Horizontal sync signal with print area output only

84 /PCLPRD IN PCL board Print video data (serial) from PCL board

85 /PCLREQ OUT PCL board DREQ signal to PCL board

86 /PCLACK IN PCL board ACK signal from PCL board

87 /PCLCS IN PCL board

88 3.3V Power

89 GND Power

90 5V Power

91 GND Power

92 /FAXPRD IN Reserved

93 /FAXREQ OUT Reserved

94 /FAXACK IN Reserved

95 3.3V Power

DM-1505

11 – 6

DM-1505

PIN No. Signal name IN/OUT Connected to Description

96 /FAXCS IN Reserved

97 /ESPRD IN

Electric sort board

(Reserved)

∗

(Reserved)

98 GND Power

99 /ESREQ OUT

100 /ESACK IN

101 /ESCS IN

Electric sort board

(Reserved)

Electric sort board

(Reserved)

Electric sort board

(Reserved)

∗

(Reserved)

∗

(Reserved)

∗

(Reserved)

102 PARAD0 IN/OUT 1284 board connector DATA bus (IEEE1284 communication port)

103 PARAD1 IN/OUT 1284 board connector DATA bus (IEEE1284 communication port)

104 PARAD2 IN/OUT 1284 board connector DATA bus (IEEE1284 communication port)

105 PARAD3 IN/OUT 1284 board connector DATA bus (IEEE1284 communication port)

106 PARAD4 IN/OUT 1284 board connector DATA bus (IEEE1284 communication port)

107 PARAD5 IN/OUT 1284 board connector DATA bus (IEEE1284 communication port)

108 5V Power

109 PARAD6 IN/OUT 1284 board connector DATA bus (IEEE1284 communication port)

110 PARAD7 IN/OUT 1284 board connector DATA bus (IEEE1284 communication port)

111 GND Power

112 /REV OUT 1284 board connector ECP mode I/O select (LOW:P → H)

113 INIT IN 1284 board connector INIT signal (IEEE1284 communication port)

114 /SLCTIN IN 1284 board connector /SLCTIN signal (IEEE1284 communication port)

115 /AUTOFD IN 1284 board connector /AUTOFD signal (IEEE1284 communication port)

116 /STB IN 1284 board connector /STB signal (IEEE1284 communication port)

117 /ACK OUT 1284 board connector /ACK signal (IEEE1284 communication port)

118 BUSY OUT 1284 board connector BUSY signal (IEEE1284 communication port)

119 PE OUT 1284 board connector PE signal (IEEE1284 communication port)

120 /FAULT OUT 1284 board connector /FAULT signal (IEEE1284 communication port)

121 5V Power

122 SLCT OUT 1284 board connector /SLCTIN signal (IEEE1284 communication port)

123 /TESTPIN0 IN TEST PIN High: Normal Low: Test

124 GND Power

125 PFCLK IN Transmitter Write clock

126 /TESTPIN1 IN TEST PIN High: Normal Low: Test

127 /SYNCEN OUT

JITTER
ADJUSTMENT IC

Jitter adjustment IC trigger signal

128 SD10 IN/OUT SRAM (separation) Data line to SRAM before are separation

129 SD11 IN/OUT SRAM (separation) Data line to SRAM before are separation

130 SD12 IN/OUT SRAM (separation) Data line to SRAM before are separation

131 SD13 IN/OUT SRAM (separation) Data line to SRAM before are separation

132 SD14 IN/OUT SRAM (separation) Data line to SRAM before are separation

133 5V Power

134 SD15 IN/OUT SRAM (separation) Data line to SRAM before are separation

135 SD16 IN/OUT SRAM (separation) Data line to SRAM before are separation

136 GND Power

137 SD17 IN/OUT SRAM (separation) Data line to SRAM before are separation

138 SOE1 OUT SRAM (separation) Read enable line to SRAM before area separation

139 SWE1 OUT SRAM (separation) Write enable line to SRAM before area separation

140 SCS1 OUT SRAM (separation) Chip select line to SRAM before area separation

11 – 7

PIN No. Signal name IN/OUT Connected to Description

141 SOE0 OUT SRAM (separation) Read enable line to SRAM before area separation

142 SWE0 OUT SRAM (separation) Write enable line to SRAM before area separation

143 SCS0 OUT SRAM (separation) Chip select line to SRAM before area separation

144 SD00 IN/OUT SRAM (separation) Data line to SRAM before are separation

145 SD01 IN/OUT SRAM (separation) Data line to SRAM before are separation

146 5V Power

147 SD02 IN/OUT SRAM (separation) Data line to SRAM before are separation

148 SD03 IN/OUT SRAM (separation) Data line to SRAM before are separation

149 GND Power

150 SD04 IN/OUT SRAM (separation) Data line to SRAM before are separation

151 SD05 IN/OUT SRAM (separation) Data line to SRAM before are separation

152 SD06 IN/OUT SRAM (separation) Data line to SRAM before are separation

153 SD07 IN/OUT SRAM (separation) Data line to SRAM before are separation

154 SAD0 OUT SRAM (separation) Address line to SRAM before area separation

155 SAD1 OUT SRAM (separation) Address line to SRAM before area separation

156 SAD2 OUT SRAM (separation) Address line to SRAM before area separation

157 SAD3 OUT SRAM (separation) Address line to SRAM before area separation

158 SAD4 OUT SRAM (separation) Address line to SRAM before area separation

159 SAD5 OUT SRAM (separation) Address line to SRAM before area separation

160 SAD6 OUT SRAM (separation) Address line to SRAM before area separation

161 SAD7 OUT SRAM (separation) Address line to SRAM before area separation

162 GND Power

163 SAD8 OUT SRAM (separation) Address line to SRAM before area separation

164 SAD9 OUT SRAM (separation) Address line to SRAM before area separation

165 SAD10 OUT SRAM (separation) Address line to SRAM before area separation

166 SAD11 OUT SRAM (separation) Address line to SRAM before area separation

167 SAD12 OUT SRAM (separation) Address line to SRAM before area separation

168 SAD13 OUT SRAM (separation) Address line to SRAM before area separation

169 /f1 OUT CCD PWB CCD drive signal transfer clock (First phase)

170 /f2 OUT CCD PWB CCD drive signal transfer clock (Second phase)

171 /SH OUT CCD PWB CCD drive signal shift pulse

172 5V Power

173 RS OUT CCD PWB CCD drive signal reset pulse

174 SP OUT CCD PWB CCD drive signal sampling hold pulse

175 GND Power

176 CP OUT CCD PWB A/D conversion IC latch clock

177 BCLK OUT CCD PWB CCD shield output latch signal

178 IDIN0 IN

179 IDIN1 IN

180 IDIN2 IN

181 IDIN3 IN

182 IDIN4 IN

183 IDIN5 IN

184 IDIN6 IN

CCD PWB (AD
conversion)

CCD PWB (AD
conversion)

CCD PWB (AD
conversion)

CCD PWB (AD
conversion)

CCD PWB (AD
conversion)

CCD PWB (AD
conversion)

CCD PWB (AD
conversion)

Image scan data (after 8bit A/D conversion)

Image scan data (after 8bit A/D conversion)

Image scan data (after 8bit A/D conversion)

Image scan data (after 8bit A/D conversion)

Image scan data (after 8bit A/D conversion)

Image scan data (after 8bit A/D conversion)

Image scan data (after 8bit A/D conversion)

DM-1505

11 – 8

DM-1505

PIN No. Signal name IN/OUT Connected to Description

185 5V Power

186 IDIN7 IN

187 /SDCLK OUT CHECK Effective image area signal

188 GND Power

189 SFCLK IN Transmitter CCD drive clock (48MHz), Also used as an internal clock.

190 TEST port 0 IN AUTO SCAN TEST High: Normal Low: Test

191 /SYNC IN LSU Horizontal synchronization signal (HSYNC) from LSU

192 /LD OUT LSU Laser drive signal

193 /LEND OUT LSU Laser APC signal

194 USB-EN OUT GDI/USB PWB USB port enable signal

195 1284-EN OUT GDI/USB PWB 1284 port enable signal

196 PORTOUT26 OUT (Not used)

197 3.3V Power

198 PORTOUT25 OUT (Not used)

199 PORTOUT24 OUT (Not used)

200 GND Power

201 SGS OUT Tr array IC SPF gate solenoid

202 SRRC OUT Tr array IC SPF resist roller solenoid

203 SPUS OUT Tr array IC SPF PU solenoid

204 /READY OUT Reserved

205 OP-LATCH OUT Tr array IC Latch signal for operation circuit. Data latch at LOW.

206 MRPS2 OUT Tr array IC Mirror speed control signal. Mirror speed 2 at LOW.

207 MRPS1 OUT Tr array IC Mirror speed control signal. Mirror speed 1 at LOW.

208 SPFS OUT Tr array IC SPF paper feed solenoid

209 SMSEL OUT Tr array IC SPF motor/Mirror motor select signal

210 3.3V Power

211 TC OUT Tr array IC Transfer charger control signal. ON at HIGH.

212 GRIDL OUT Tr array IC Main charger grid control signal. ON at HIGH.

213 GND Power

214 MC OUT Tr array IC Main charger control signal. ON at HIGH.

215 BIASL OUT Tr array IC DV bias voltage control signal. ON at HIGH.

216 BIASH OUT Tr array IC DV bias voltage control signal. ON at HIGH.

217 BIAS OUT Tr array IC DV bias output control signal. ON at HIGH.

218 CL OUT Tr array IC Copy lamp control signal. ON at HIGH.

219 VFMCNT OUT Tr array IC

220 VFM OUT Tr array IC Ventilation fan control signal. Fan ON at HIGH.

221 LDEN OUT Tr array IC Laser circuit control signal. Laser circuit ON at HIGH.

222 PMD OUT Tr array IC Polygon motor control signal. Polygon motor ON at HIGH.

223 5V Power

224 MM OUT Tr array IC Main motor control signal. Main motor ON at HIGH.

225 MPFS OUT Tr array IC

226 GND Power

227 CPFS2 OUT Tr array IC

228 CPFS1 OUT Tr array IC

229 TM OUT Tr array IC Toner motor drive output (+)

CCD PWB (AD
conversion)

Image scan data (after 8bit A/D conversion)

Ventilation fan rotating speed control signal. Low speed at HIGH, high
speed at LOW.

Manual paper feed solenoid control signal. Multi paper feed ON at
HIGH.

Second cassette paper feed solenoid control signal. Second cassette
paper feed at HIGH.

Cassette paper feed solenoid control signal. One-stage cassette paper
feed at HIGH.

11 – 9

PIN No. Signal name IN/OUT Connected to Description

230 TM_ OUT Tr array IC Toner motor drive output (–)

231 CPUD15 IN/OUT CPU CPU data bus

232 CPUD14 IN/OUT CPU CPU data bus

233 CPUD13 IN/OUT CPU CPU data bus

234 CPUD12 IN/OUT CPU CPU data bus

235 CPUD11 IN/OUT CPU CPU data bus

236 5V Power

237 CPUD10 IN/OUT CPU CPU data bus

238 CPUD9 IN/OUT CPU CPU data bus

239 GND Power

240 CPUD8 IN/OUT CPU CPU data bus

241 CPUD7 IN/OUT CPU CPU data bus

242 CPUD6 IN/OUT CPU CPU data bus

243 CPUD5 IN/OUT CPU CPU data bus

244 CPUD4 IN/OUT CPU CPU data bus

245 CPUD3 IN/OUT CPU CPU data bus

246 CPUD2 IN/OUT CPU CPU data bus

247 CPUD1 IN/OUT CPU CPU data bus

248 CPUD0 IN/OUT CPU CPU data bus

249 3.3V Power

250 /CPUWR IN CPU CPU write signal

251 /CPURD IN CPU CPU read signal

252 GND Power

253 CPUCLK IN CPU CPU system clock

254 GND Power

255 TEST PORT1 IN AUTO SCAN TEST High: Normal Low: Test

256 /SCANST IN CPU (I/O) Scanner process start signal

∗ The signals which are hatched are added or revised to or from AL-1000.

(3) Expanded PWB interface section

The MCU PWB and the expanded PWB are connected by CN5 connector to make serial communication (UART).
The FAX PWB uses signals in Table A, and the PCL PWB uses signals in Table B.
Recognition of FAX PWB or PCL PWB:
If /FREADY is LOW, the FAX PWB expansion is recognized.
If /PREADY is LOW, the PCL PWB expansion is recognized.

PCL/FAX CN

CN5

(1-D4)

(7-E2)

R128

/FRTS

/SCANST

/PREADY
FTXD

/HSYNC
OUTD1
OUTD3
OUTD5
OUTD7
OUTD9
OUTD11
OUTD13
OUTD15
/PCLREQ
/PCLCS
/FAXREQ
/FAXCS

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

TX25-60P-23ST-H1

10J

C141
18p

(7-E1) (7-E2)
(7-E1)

(1-E1)
(5-E2)
(5-E1)
(5-E1)
(5-E2)
(5-E2)
(5-E2)
(5-E2)
(5-E2)
(5-E2)
(5-E2)
(5-E2)
(5-E2)
(5-E2)

/PREADY

FTXD

/F-RESET

/HSYNC

OUTD1

OUTD3

OUTD5

OUTD7

OUTD9

OUTD11

OUTD13

OUTD15
/PCLREQ
/PCLCS
/FAXREQ
/FAXCS

/SCLINE

/FRTS

F-RESET

31
32

/PRLINE

33

/FPAGE

34

/FREADY

35

/READY

36

FRXD

37

/FCTS

38
39
40
41
42

/POFF

43

OUTD0

44

OUTD2

45

OUTD4

46

OUTD6

47

OUTD8

48

OUTD10

49

OUTD12

50

OUTD14

51

/PCLPRD

52

/PCLACK

53

/FAXPRD

54

/FAXACK

55
56
57
58
59
60

/PAGE
/FREADY

FRXD
/FCTS

OUTD0
OUTD2
OUTD4
OUTD6
OUTD8
OUTD10
OUTD12
OUTD14
/PCLPRD
/PCLACK
/FAXPRD
/FAXACK

(7-E2)

(7-E1)
(7-D1)

(5-E1)
(5-E1)
(5-E2)
(5-E2)
(5-E2)
(5-E2)
(5-E2)
(5-E2)
(5-E2)
(5-E2)
(5-E2)
(5-E2)

C140

18p

C143

18p

C142

18p

R130

R131

R132

L2

10J

10J

10J

SBO-02SAN

/PRSTART

/READY

/POFF

SBO-02SAN

L3

C134

(5-A3)

(1-C1)

C135

0.1u

12V

L1

(1-D2)

C137

0.1u

5V

SBO-02SAN

DM-1505

0.1u

3.3V

11 – 10

C118

0.1u

C3

47u 25V

C119

C117

C5

0.1u

47u 16V

C2

0.1u

47u 16V

DM-1505

Table A (Signals used in the FAX PWB)

PIN No.

(CN5)

Signal

name

IN/OUT Descriptions

3 /SCLINE OUT Effective input image area

6 FTXD OUT Serial communication data

7 /FRTS OUT

Serial reception ready
(Machine side)

12 /F-RESET OUT Reset signal

13 /HSYNC OUT Horizontal sync signal

14 ∼ 21,

44 ∼ 51

OUTD1 ∼
OUTD15

OUT Data to the expanded PWB

24 /FAXREQ OUT Data transfer REQ signal

25 /FAXCS IN OUTD bus enable signal

33 /PRLINE OUT Effective print area

34 /FPAGE IN Page data READY

35 /FREADY IN FAX PWB recognition signal

36 /READY OUT

READY signal on the
machine side

37 FRXD IN Serial communication data

38 /FCTS IN

Serial reception READY
(FAX side)

43 /POFF OUT Power OFF signal

54 /FAXPRD IN Video data from FAX PWB

55 /FAXACK IN Data transfer ACK signal

Table B (Signals used in PCL PWB)

PIN No.

(CN5)

Signal
name

IN/OUT Descriptions

5 /PREADY IN PCL PWB recognition signal

6 FTXD OUT Serial communication data

7 /FRTS OUT

Serial reception READY
(Machine side)

12 /F-RESET OUT Reset signal

13 /HSYNC OUT Horizontal sync signal

34 /FPAGE IN Page data READY

36 /READY OUT

READY signal on the
machine side

37 FRXD IN Serial communication data

38 /FCTS IN

Serial reception READY
(PCL side)

52 /PCLPRD IN Video data from PCL PWB

(4) 1284/USB circuit select control section

The GDI/USB PWB is connected to CN15 connector to control switch­ing between IEEE1284 port and USB port.
If USB cable isn’t connected to the GDI/USB PWB, the /1284-EN signal
becomes LOW to allow the user of IEEE1284 port.

If USB cable is connected, the /USB-EN signal becomes LOW to allow
the use of USB port.
Since USB has priority, when USB cable is connected, it is selected.
That is, when USB cable is connected, IEEE1284 port (parallel port) is
disabled.

GDI/USB CN

5V

CN15

1
2
3

BUSY

SLCT

/REV

/ACK

4
5
6
7
8
9
10
11
12
13

INIT

14
15
16

/STB

17
18
19

PE

20
21
22
23
24
25
26
27
28
29
30
31

31FT-BT-VK-N

(5-D2)

PARAAD0

(5-D2)

PARAAD1

(5-D2)

PARAAD2

(5-D2)

PARAAD3

(5-D2)

PARAAD4

(5-D2)

PARAAD5
PARAAD6

(5-D2)
(5-D2)

PARAAD7
(5-D3)
(5-D3)
(5-D3)

/SLCTIN

(5-D3)

/AUTOFD
(5-D3)
(5-D3)
(5-D3)
(5-D3)
(5-D3)

/FAULT
(5-D3)
(2-D3)

/GDI-IN

(5-A3)

USB-IN

(1-B1)

/USB-EN

(5-A3)

3.3V
(5-A3)

USB-ON
/1284-EN

11 – 11