DOWNLOAD Panasonic DP-1510P / DP-1810P / DP-1810F / DP-2010E (serv.man2) Service Manual ↓ Size: 18.57 MB | Pages: 127 in PDF or view online for FREE

21

JUL 2002

Edition 1.0

DP-1510P/1810P

     

/1810F/2010E

This Printer Motor is a Brushless DC Motor. 

The Printer Motor is powered by +24 VDC supply. When the interlocks are open, the +24 VDC supply
is cut off and the Printer Motor stops rotating.

:

When the signal level goes Low, the Printer Motor starts rotating.

:

Rotation status signal for Printer Motor. When the Printer Motor reaches 
a constant speed, nMMRDY signal level goes Low.

:

Clock signal for Printer Motor Drive.

+5V

+5V

R91

Q16

+24VM

Q15

IC1

CPU

M

CN712

1, 2

3, 4

5

7

10
8

6

+24VM

DC Brushless
Motor

MGND

MGND

nMMON
nMMRDY
nMMCK

22

DP-1510P/1810P

     

/1810F/2010E

JUL 2002

Edition 1.0

It consists of 1 Fuser Lamp and Fuser Lamp is controlled by the HTC PC Board.
The Fuser Lamp is powered by 100 VAC. When the CN766, Pin 2 (nSSR) on the HTC PCB goes LOW,
the Fuser Lamp turns ON. This lights up the PC101 LED and activates the SCR101 photo-triac, and
AC is sent to the Fuser Lamp.

CN764

CN765

C102

L101

C101

F101

L102

SW101

C103

R101

SCR101

C104

R102

(LPC3 PCB)

(HTC PCB)

Fuser Lamp

Fuse

Thermostat

PC101

R104

R103

D101

R107

PC102

R105

R106

RL101

CN715

CN760

CN761

+5V

nSSR

CN766

4

3

6

5

1

2

4

3

6

5

1

2

23

JUL 2002

Edition 1.0

DP-1510P/1810P

     

/1810F/2010E

The fuser temperature is controlled by IC1 on the LPC3 PC Board, which contains A/D (Analog/Digital)
converters. IC1 adjusts temperature, observing Thermistor and voltages separated by R61 with A/D
converters. When the PC101 drive current is transmitted from the LPC3 PC Board to the HTC PCB,
the Fuser Lamp turns ON. IC5 is a converter with open output at pins 1 and 7 and is used as an
abnormal temperature detection circuit. IC5, pin 1 and 7, has a high impedance when Q7 and Q8 are
activated, turning ON the Fuser Lamp. An abnormal temperature is detected when the VTH voltage
level becomes lower than V-, forcing IC5, pin 1 and 7 Low and deactivating Q8.
Abnormally low and high temperatures, as well as Thermistor release status, are detected by IC1
(CPU) programming. 

Thermistor

(Fuser)

PC101

R61

VTH

GND

IC5
uPC393

IC1

IC1

THERM

(A/D)

L: ON

nSSRA

H: OFF

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

V-

Q23

Q24

Q7

Q8

R25

Q3

(HTC PCB)

CN708

24

DP-1510P/1810P

     

/1810F/2010E

JUL 2002

Edition 1.0

This safety circuit turns OFF the +24 VDC and +5 VDC supply voltages when the Front Door Cover is
opened. When the Front Door Cover is opened, the microswitch(es) on the ILS PC Board are de-
actuated, turning OFF +24 VDC to the Printer Motor Drive Circuit, the HVPS, the Paper Feed Solenoid
Circuits, the Clutch Drive Circuit, and the Laser Driver Circuit on the Laser Unit.

IN

OUT

GND

TA78M05F

MGND

L+5V

270

1W

270

1W

1W

270

MA152A

+24V

+24VD1

+24VM

LPC3 PCB

Q9

Front
Door

Micro
Switch

DC/DC

Converter

Printer Motor
Paper Feed Clutch

Bypass Paper 
Feed Clutch

Lift DC Motor

2nd Paper Feed 
Module

HVPS

LSU (Motor)

LSU (Laser)

Open Door

Detection