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No.

Name

Signal

Type

Function

Output

1

Mirror home position
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

Paper transport detection
2

“L” at paper pass

4

Cassette detection switch

CED1

Microswitch

Cassette installation
detection

“H” at cassette insertion

5

Manual feed detection
switch

MFD

Transmission sensor

Manual feed paper
detection (single only)

“L” at paper detection

6

PPD1 sensor

PPD1

Transmission sensor

Paper transport detection
1

“L” at paper pass

7

Door switch

DSW

Micro switch

Door open/close
detection (safety switch
for 5V)

1 or 0V of 5V at door
open

8

Door switch

DSW

Micro switch

Door open/close
detection (safety switch
for 24V)

1 or 0V of 24V at door
open

9

Drum reset switch

DRST

Micro switch

New drum detection
switch

Instantaneously  “H” at
insertion of new drum

10

SPF sensor

SPID/SD
SW

Transmission sensor

Paper entry detection
Cover open/close
detection

“L” at paper pass

11

SPPD sensor

SPPD

Transmission sensor

Paper transport detection

“L” at paper pass

12

SDOD sensor

SDOD

Transmission sensor

SPF open/close detection
Book sensor

“L” at paper pass

13

2nd cassette

DSW

Micro switch

2nd cassette door open
detection

1 or 0V of 5V at door
open

14

PPD3 sensor

PPD3

Transmission sensor

Paper transport
detection 3

“L” at paper pass

1

2

12

3

4

5

6

7

9

8

10

13

14

11

DM-1505

4  –  4

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

2

4

1

3

5

6

7

8

9

10

11

DM-1505

4 – 5

No.

Part name

Function and operation

1

Scanner unit

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

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)

12

Manual paper feed
tray

Tray for manual feed paper

13

Manual paper feed
roller

Transport the paper from the manual paper feed port.

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.

2

4

1

18

3

5

6

19

16

17

7

8

9

10

11

13

12

14

15

DM-1505

4  –  6

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

● 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.

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

Be careful in handling the copier as follows to maintain the perfor-
mance 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.

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.

8"(20cm)

8"(20cm)

4"

(10cm)

4"
(10cm)

DM-1505

5 – 1