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FACSIMILE EQUIPMENT
SERVICE MANUAL
MODEL: FAX1170/1270/1570MC FAX1010/1020/1030 MFC1770/1870MC/1970MC
© Copyright Brother 1997 All rights reserved. No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher. Specifications are subject to change without notice.
PREFACE
This publication is a Service Manual covering the specifications, construction, theory of operation, and maintenance of the Brother facsimile equipment. It includes information required for field troubleshooting and repair--disassembly, reassembly, and adjustment--so that service personnel will be able to understand equipment function, to rapidly repair the equipment and order any necessary spare parts. To perform appropriate maintenance so that the facsimile equipment is always in best condition for the customer, the service personnel must adequately understand and apply this manual. This manual is made up of six chapters and appendices.
CHAPTER I. CHAPTER II. CHAPTER III. CHAPTER IV. CHAPTER V. CHAPTER VI. APPENDICES
GENERAL DESCRIPTION INSTALLATION THEORY OF OPERATION DISASSEMBLY/REASSEMBLY AND LUBRICATION MAINTENANCE MODE ERROR INDICATION AND TROUBLESHOOTING Circuit Diagrams
This manual describes the model and its versions to be destined for major countries. The specifications and functions are subject to change depending upon each destination.
CHAPTER I.
GENERAL DESCRIPTION
CONTENTS
1.
EQUIPMENT OUTLINE ................................................................................. 1.1 External Appearance and Weight ...........................................................
I-1 I-1
1.2 Components ............................................................................................ I-1 2. SPECIFICATIONS .......................................................................................... I-2
1. EQUIPMENT OUTLINE
1.1 External Appearance and Weight
The figure below shows the equipment appearance and approximate dimensions.
(Unit: mm)
213 (H)
8.5" A4 A4 8.5"
Functio n Tel/Inde x Resolut ion Mode Super O. Scan
Help
Hook
1
Hold GHI
ABC
2
JKL
DEF
PLAIN PAPER
01 13 05 02 14 06 18 10 22
Set
IntelliFAX -1270
FACSIMILE
3
MNO
03 15 07 19
4
Redial/P ause PRS
04
Sort
5
TUV
6
WXYZ
16 08 20 12
Copy Enlarge / Reduce
7
Speed Dial
8 0
9
09
17
*
#
Shift
11 23
21
Stop Start
24
Clear
385 (D) 385.5 (W)* * 317 mm for FAX1010 which has no handset mount
Weight: Machine proper In package
FAX1010: Approx. 5.0 kg (excluding a ribbon cartridge) Other models: Approx. 5.2 kg (excluding a ribbon cartridge) FAX1010: Approx. 8.7 kg Other models: Approx. 8.9 kg
1.2
Components
The equipment consists of the following major components:
Recording paper cover ASSY Control panel ASSY
Handset (Not provided on the FAX1010) Main cover Handset mount (Not provided on the FAX1010) Side cover (Provided only on the FAX1010) Power supply PCB NCU PCB Main PCB Modular PCB
Inner cover
Recording head ASSY
Main frame
CIS unit Bottom plate Document ejection tray
I1
2. SPECIFICATIONS
Model Color Modem Speed CCITT Group Coding Method Transmission Speed Input/Output Width ADF Capacity (pages) Recording Paper Loadable Paper Size Ribbon Life (Letter-size print) Handset LCD Size On-screen Programming Gray Scale Smoothing One-touch Dial Speed Dial Telephone Index Multi-resolution Transmission FAX/TEL Switch Distinctive Ringing Next Fax-reservation Help TAD Interface Coverpage Polling Type Receive Password (password plus) Delayed Transmission Call Reservation Call-back Message Speaker Phone Activity Report Transmission Verification Report Page Memory Out-of-paper Reception Quick Scan Super Quick Scan Broadcasting ECM Multi-transmission Multi-copying w/Sorting Enlargement/Reduction Ratio TAD Type OGM ICM Recording Time FAX Forwarding/Paging FAX Retrieval PCI (Missing link) Message Center Caller ID Fax-/Voice-on-demand Mail Box Remote Control Toll Saver Memo/2-Way Recording Auto Reduction Confidential Mailbox Optional Memory FAX1170 Gray (1395) 9600 bps G3 MH 15 sec. 8.5"/8.5" 20 200 sheets Letter/Legal/A4 450 pages Yes 16 x 1 Yes 64 by Dithered Yes 12 x 2 26 Yes Yes Yes Yes Yes Yes Yes Yes, Super Sim/Del/Seq Yes 3, timers Yes Yes Monitor Yes Yes 512 KB (20 pages) Yes Yes No Yes Yes Yes Yes Yes (50-150%) No No No No No Ready No Yes No No Yes No No Yes No No FAX1270 White (1397) 9600 bps G3 MH 15 sec. 8.5"/8.5" 20 200 sheets Letter/Legal/A4 450 pages Yes 16 x 1 Yes 64 by Dithered Yes 12 x 2 36 Yes Yes Yes Yes Yes Yes Yes Yes, Super Sim/Del/Seq Yes 3, timers Yes Yes Monitor Yes Yes 512 KB (20 pages) Yes Yes No Yes Yes Yes Yes Yes (50-150%) No No No Yes Yes Ready No Yes No No Yes No No Yes No No FAX1570MC White (1397) 14400 bps G3 MH 9 sec. 8.5"/8.5" 20 200 sheets Letter/Legal/A4 450 pages Yes 16 x 1 Yes 64 by E/D Yes 12 x 2 100 Yes Yes Yes Yes Yes Yes Yes Yes, Super Sim/Del/Seq Yes 3, timers Yes Yes Yes, Full-duplex Yes Yes 1 MB (50 pages) Yes Yes No Yes Yes Yes Yes Yes (50-150%) DSP Yes Yes, 30 min. Yes Yes Ready Yes Yes Voice-on-demand Yes Yes Yes Yes Yes No No
I2
Model Color Modem Speed CCITT Group Coding Method Transmission Speed Input/Output Width ADF Capacity (pages) Recording Paper Loadable Paper Size Ribbon Life (A4-size print) Handset LCD Size On-screen Programming Gray Scale Smoothing One-touch Dial Speed Dial Telephone Index
FAX1010 White (1138) 9600 bps G3 MH 15 sec. A4/A4 20 200 sheets Letter/Legal/A4 420 pages No 16 x 1 Yes 64 by Dithered Yes 12 x 2 36 Yes (Not Super)
FAX1020 White (1138) 9600 bps G3 MH 15 sec. A4/A4 20 200 sheets Letter/Legal/A4 420 pages Yes 16 x 1 Yes 64 by Dithered Yes 12 x 2 36 Yes (Not Super)
FAX1030 White (1138) 14400 bps G3 MH 10 sec. A4/A4 20 200 sheets Letter/Legal/A4 420 pages Yes 16 x 1 Yes 64 by E/D Yes 12 x 2 100 Yes (Not Super)
Multi-resolution Transmission Yes Yes Yes FAX/TEL Switch Yes Yes Yes Distinctive Ringing Yes Yes Yes Next Fax-reservation Yes Yes Yes Help Yes, Simple Yes, Simple Yes, Simple TAD Interface Yes Yes Yes Coverpage Yes, Super Yes, Super Yes, Super Polling Type Std/Sec/Del/Seq Std/Sec/Del/Seq Std/Sec/Del/Seq Receive Password (password plus) Yes Yes Yes Delayed Transmission 3, timers 3, timers 3, timers Call Reservation Yes Yes Yes Call-back Message Yes Yes Yes Speaker Phone Monitor Monitor Yes, Full-duplex Activity Report Yes Yes Yes Transmission Verification Report Yes Yes Yes Page Memory 512 KB (20 pages) 512 KB (20 pages) 1 MB (50 pages) Out-of-paper Reception Yes (20 pages) Yes (20 pages) Yes (50 pages) Quick Scan Yes (18 pages) Yes (18 pages) Yes (18 pages) Super Quick Scan No No No Broadcasting Yes, 60 locations Yes, 60 locations Yes, 124 locations ECM Yes Yes Yes Multi-transmission Yes Yes Yes Multi-copying w/Sorting Yes Yes Yes Enlargement/Reduction Ratio Yes (50-150%) Yes (50-150%) Yes (50-150%) TAD Type No No DSP OGM No No Yes ICM Recording Time No No Yes, 30 min. FAX Forwarding/Paging Yes/No Yes/No Yes FAX Retrieval Yes Yes Yes PCI (Missing link) Ready Ready Ready Message Center No No Yes Caller ID UK, Sw., Holland (Ready for France) UK, Sw., Holland (Ready for France) UK, Sw., Holland (Ready for France) Fax-/Voice-on-demand No No Voice-on-demand Mail Box No No Yes, 5 Remote Control Yes Yes Yes Toll Saver No No Yes Memo/2-Way Recording No No Yes Auto Reduction Yes Yes Yes Confidential Mailbox No No No Optional Memory No No No
I3
Model Color Modem Speed CCITT Group Coding Method Transmission Speed Input/Output Width ADF Capacity (pages) Recording Paper Loadable Paper Size Ribbon Life (Letter-size print) Handset LCD Size On-screen Programming Gray Scale Smoothing One-touch Dial Speed Dial Telephone Index Multi-resolution Transmission FAX/TEL Switch Distinctive Ringing Next Fax-reservation Help TAD Interface Coverpage Polling Type Receive Password (password plus) Delayed Transmission Call Reservation Call-back Message Speaker Phone Activity Report Transmission Verification Report Page Memory Out-of-paper Reception Quick Scan Super Quick Scan Broadcasting ECM Multi-transmission Multi-copying w/Sorting Enlargement/Reduction Ratio TAD Type OGM ICM Recording Time FAX Forwarding/Paging FAX Retrieval PCI (Missing link) Message Center Caller ID Fax-/Voice-on-demand Mail Box Remote Control Toll Saver Memo/2-Way Recording Auto Reduction Confidential Mailbox Optional Memory
MFC1770 White (1138) 9600 bps G3 MH 15 sec. 8.5"/8.5" 20 200 sheets Letter/Legal/A4 450 pages Yes 16 x 1 Yes 64 by Dithered Yes 12 x 2 36 Yes Yes Yes Yes Yes Yes Yes Yes, Super Sim/Del/Seq Yes 3, timers Yes Yes Monitor Yes Yes 512 KB (20 pages) Yes Yes No Yes Yes Yes Yes Yes (50-150%) No No No Yes Yes Included (MFL3) No Yes No No Yes No No Yes No No
MFC1870MC White (1138) 14400 bps G3 MH 9 sec. 8.5"/8.5" 20 200 sheets Letter/Legal/A4 450 pages Yes 16 x 1 Yes 64 by Dithered Yes 12 x 2 36 Yes Yes Yes Yes Yes Yes Yes Yes, Super Sim/Del/Seq Yes 3, timers Yes Yes Yes, Full-duplex Yes Yes 512 KB (20 pages) Yes Yes No Yes Yes Yes Yes Yes (50-150%) DSP Yes Yes, 15 min. Yes Yes Included (MFL3) Yes Yes Voice-on-demand Yes Yes Yes Yes Yes No No
MFC1970MC White (1138) 14400 bps G3 MH 9 sec. 8.5"/8.5" 20 200 sheets Letter/Legal/A4 450 pages Yes 16 x 1 Yes 64 by E/D Yes 12 x 2 100 Yes Yes Yes Yes Yes Yes Yes Yes, Super Sim/Del/Seq Yes 3, timers Yes Yes Yes, Full-duplex Yes Yes 1 MB (50 pages) Yes Yes No Yes Yes Yes Yes Yes (50-150%) DSP Yes Yes, 30 min. Yes Yes Included (MFL3) Yes Yes Voice-on-demand Yes Yes Yes Yes Yes No No
I4
CHAPTER II.
INSTALLATION
CHAPTER III.
THEORY OF OPERATION
CONTENTS
1.
OVERVIEW ..................................................................................................... III-1 1.1 Functional Block Diagram ...................................................................... III-1
2.
MECHANISMS ................................................................................................ III-2 2.1 Transmitting Mechanism (Feeding and scanning documents) ............... 2.1.1 Automatic document feeder (ADF) .................................................. III-2 III-2
2.1.2 Scanner ........................................................................................... III-3 2.2 Receiving Mechanism (Feeding paper and printing data) ...................... 2.3 Power Transmission Mechanism ........................................................... 2.3.1 Structure of the gear train ............................................................... 2.3.2 Description of planetary gear system .............................................. 2.3.3 Power transmission for four operation modes ................................. [ 1 ] Scanning mode (Solenoid: OFF, Motor rotation : Reverse) ...................... III-4 III-5 III-5 III-6 III-7 III-8
[ 2 ] Paper feeding/ejection mode (Solenoid: ON, Motor rotation : Reverse) III-9 [ 3 ] Recording mode (Solenoid: OFF, Motor rotation : Forward) .................... [ 4 ] Copying mode (Solenoid: ON, Motor rotation : Forward) ......................... 2.3.4 Power transmission route ............................................................... 2.4 Sensors and Actuators ........................................................................... 3. CONTROL ELECTRONICS ........................................................................... III-10 III-12 III-14 III-16 III-19
3.1 Configuration ........................................................................................... III-19 3.2 Main PCB ................................................................................................ III-20 3.3 NCU PCB ................................................................................................ III-27 3.4 Control Panel PCB ................................................................................. 3.5 Power Supply PCB ................................................................................ III-29 III-30
1. OVERVIEW
1.1 Functional Block Diagram
Control Panel LCD Recorder Recording head Modular PCB (Cover sensor) Main PCB
(Document front and rear sensors)
Document ejection tray
Ribbon cartridge
To PC
Ribbon sensor Scanner CIS unit Main frame
NCU PCB Motor Power supply PCB Sensor PCB
(Paper-edge sensor and paper ejection sensor)
Line AC
Handset Hook switch sensor
III 1
2. MECHANISMS
The equipment is classified into the following mechanisms: s Transmitting Mechanism s Receiving Mechanism s Power Transmission Mechanism s Sensors and Actuators Feeding and scanning documents Feeding paper and printing data Switching the power transmission route
2.1
Transmitting Mechanism (Feeding and scanning documents)
The transmitting mechanism consists of the document stacker, automatic document feeder (ADF), document feeding related rollers, scanner, and document sensors. (For details about the sensors, refer to Section 2.4.) For the drive power source, refer to Section 2.3.
Document
Document support
Separation roller
ADF parts Document stacker Pressure roller, rear White pressure roller Pressure roller, front
(Front)
Scanner (CIS unit)
Document ejection roller
2.1.1
Automatic document feeder (ADF) If the operator sets documents on the stacker and starts the transmitting operation, the ADF (consisting of the separation roller and ADF parts) feeds those documents into the equipment, starting from the bottom sheet to the top, page by page. Each document advances to the scanner, and then it is fed with the white pressure roller and document ejection roller.
III 2
2.1.2
Scanner The scanner uses a contact image sensor (CIS) unit which consists of an LED array illuminating documents, a self-focus lens array collecting the reflected light, a CIS PCB carrying out photoelectric conversion to output picture element data, and a cover glass on which a document advances. When the document passes between the white pressure roller and the cover glass, it is scanned.
III 3
2.2
Receiving Mechanism (Feeding paper and printing data)
The receiving mechanism consists of the recording paper cover ASSY, paper feed roller ASSY, platen, thermal recording head, paper ejection roller, and sensors. (For details about the sensors, refer to Section 2.4.)
Paper
Paper feed roller ASSY
Recording paper cover ASSY
Chute ASSY Paper ejection roller Platen
(Front) Thermal ink ribbon Recording head
STEP 1: In the paper feeding mode If the equipment receives data, the control electronics activates the solenoid and rotates the motor counterclockwise to drive the paper feed roller (and paper ejection roller). This pulls in a sheet of paper and feeds it until its leading edge reaches the point just before the printing position. STEP 2: In the recording (platen drive & ribbon take-up) mode The control electronics deactivates the solenoid and rotates the motor clockwise to drive the platen gear and the ribbon take-up gear as well as the paper ejection roller. This feeds the paper up to the printing position where the thermal recording head prints, as well as feeding the thermal ink ribbon. STEP 3: In the paper ejecting mode The same operation as for STEP 1 takes place so as to eject the paper.
III 4
2.3
Power Transmission Mechanism
The equipment has a single drive motor whose power transmission route can be switched by the planetary gear systems and the solenoid. This switching allows the equipment to function in four operation modes (scanning, paper feeding/ejecting, recording, and copying modes). For the details about the planetary gear systems, refer to Subsection 2.3.2.
2.3.1
Structure of the gear train At the left side of the equipment, the rotational torque of the motor on the main frame is transmitted to the gears on the main frame and then to the gears on the platen frame. These gears drive the document feeding/ejecting related rollers, paper feeding/ejecting related rollers, and the platen. If the platen gear ("a" in the figure below) on the left end of the platen shaft rotates, the gear 33RB ("b") on the right end also rotates. This way, the rotational torque is transmitted to the gears on the right side of the equipment. At the right side of the equipment, the rotational torque is further transmitted via the friction torque transmission ASSY to the ribbon drive gear ("e") which drives the ribbon take-up gear in the ribbon cartridge.
Right side d (Gear 18) c (Gear 20/40)
e (Gear 46 of Friction torque transmission ASSY) Main frame
b (Gear 33RB) Platen frame
e (Ribbon drive gear, Gear 24)
Left side
(Gears 18/41) V U
W (Clutch gear ASSY) X (Paper ejection roller gear, Gear 40) a (Platen gear, Gear 23) Z (Gear 33/45) M (Gear 39) C (Planet gear 20B of Arm B ASSY) D (Gear 33) F (Separation roller gear) I (White pressure roller gear)
T (Paper feed roller gear, Gear 55) Platen frame
S (Planet gear 34 of Arm P ASSY) R (Sun gear 39/24) Main frame Q (Gear 33) P (Gear 18) O (Gear 39)
(Front) K (Document ejection roller J gear)
N (Sun gear 36/27)
Y (Planet gear 44 of Arm C ASSY) B (Sun gear 20/90)
E (Gear 20/40)
G H
(Gears 14/20) Clutch lever A (Motor gear) L (Planet gear 20A of Arm A ASSY) : Gears on the main frame : Gears on the platen frame
Gear Train
III 5
2.3.2
Description of planetary gear system The equipment uses the following three planetary gear systems: - Sun gear 20/90 ("B" in the figure given on the previous page) and its planet gears - Sun gear 36/27 ("N") and its planet gear - Sun gear 39/24 ("R") and its planet gear This section describes the planetary gear system of the sun gear 20/90 ("B"). It consists of the sun gear 20/90, two planet gears 20, arm A, and arm B, as shown below.
Planet gear 20B
Arm B
Sun gear 20/90 Arm A Motor gear Planet gear 20A
Planetary Gear System
If the motor rotates, the sun gear 20/90 rotates so that the rotational torque is transmitted to the engagement between the sun gear and the planet gears 20. Since the arms and planet gears are so designed that the moment of the arms is less than that of the planet gears, the arms turn around the center shaft in the same direction as the sun gear 20/90. If the planet gear(s) becomes engaged with any other gear so that the arm cannot turn furthermore, the rotational torque of the sun gear 20/90 is transmitted to that planet gear. Accordingly, the planet gear starts rotation in the opposite direction of the sun gear 20/90.
III 6
2.3.3
Power transmission for four operation modes Depending upon the solenoid ON/OFF state and the motor rotation direction, the planetary gear train switches the power transmission route for the four operation modes. Solenoid ON/OFF state Solenoid: OFF
Section y (to block the stoppper of arm B) Clutch lever Arm B Planet gear 20B
Motor rotation direction
Forward Reverse Stopper of arm B Stopper of arm A
Cutout x (engaged with the stopper of arm A) Solenoid Spring
Sun gear 20/90
Arm A Motor gear
Planet gear 20A
Solenoid: ON
Section y (to block the stoppper of arm B) Clutch lever
Cutout x (engaged with the stopper of arm A) Solenoid Spring
III 7
[1]
Scanning mode (Solenoid: OFF, Motor rotation: Reverse)
In the scanning mode, the control electronics deactivates the solenoid. When the motor rotates in the reverse direction, the clutch lever turns counterclockwise with the spring so that its cutout x becomes engaged with the stopper of arm A. Once arm A is locked, the planet gear 20A ("L") will not be engaged with any other gear but simply idle. The motor's rotational torque turns the sun gear 20/90 ("B") clockwise so that the planet gear 20B ("C") transmits the torque to the separation roller gear ("F"), white pressure roller gear ("I") and document ejection roller gear ("K") via the several gears.
C (Planet gear 20B) Cutout x of clutch lever Stopper of arm A
B (Sun gear 20/90)
Clutch lever
L (Planet gear 20A)
Solenoid Arm A Locked by Cutout x of Clutch Lever
B (Sun gear 20/90) C (Planet gear 20B)
F (Separation roller gear) I (White pressure roller gear)
D
G L E
H J
(Front)
Solenoid
Clutch lever A (Motor gear)
K (Document ejection roller gear)
Active Gears
III 8
[2]
Paper feeding/ejecting mode (Solenoid: ON, Motor rotation: Reverse)
In the paper feeding/ejecting mode, the control electronics activates the solenoid to release the stopper of arm A. When the motor rotates in the reverse direction, the sun gear 20/90 ("B") rotates clockwise so that the planet gear 20A ("L") transmits the torque via the gear 39 ("M") and other gears to the paper feed roller gear ("T") and paper ejection roller gear ("X"). Since the stopper of arm B is blocked by the section y of the clutch lever, the planet gear 20B ("C") is merely idle without engaging with any other gear.
Stopper of arm B C (Planet gear 20B) Section y of clutch lever Stopper of arm A
B (Sun gear 20/90)
Clutch lever
L (Planet gear 20A)
Solenoid Arm B Blocked by Section y of Clutch Lever
X (Paper ejection roller gear) T (Paper feed roller gear)
U V
B (Sun gear 20/90)
W
C Q P O Y N M
S (Planet gear 34)
(Front) R (Sun gear 39/24) L (Planet gear 20A) Solenoid Clutch lever A (Motor gear) Active Gears
III 9
[3]
Recording mode (Solenoid: OFF, Motor rotation: Forward)
In the recording mode, the control electronics deactivates the solenoid. When the motor rotates in the forward direction, the clutch lever turns counterclockwise with the spring so that its cutout x becomes engaged with the stopper of arm A. Once arm A is locked, the planet gear 20A ("L") will not be engaged with any other gear but simply idle. The motor's rotational torque turns the sun gear 20/90 ("B") counterclockwise so that the planet gear 20B ("C") transmits the torque via the gear 39 ("M") and other gears to the platen gear ("a") as well as the paper ejection roller gear ("X"). The platen advances recording paper and its paper movement rotates the paper feed roller. Consequently, the paper feed roller shaft rotates faster than the paper feed roller gear ("T"). If the platen gear ("a" in the figure below) on the left end of the platen shaft rotates, the gear 33RB ("b") on the right end also rotates so as to drive the friction torque transmission ASSY and ribbon drive gear ("e") that rotates the ribbon take-up gear ("f") in the ribbon cartridge, as shown on the next page.
C (Planet gear 20B) Cutout x of clutch lever Stopper of arm A B (Sun gear 20/90) Clutch lever
L (Planet gear 20A)
Solenoid Arm A Locked by Cutout x of Clutch Lever
X (Paper ejection roller gear) T (Paper feed roller gear)
U V
a (Platen gear) C (Planet gear 20B) B (Sun gear 20/90)
W
Z Q P M L O
(Front) S (Planet gear 34) R (Sun gear 39/24) Y (Planet gear 44) N (Sun gear 36/27) A (Motor gear) Active Gears on the Left Side Solenoid Clutch lever
III 10
Platen frame
f (Ribbon take-up gear in the ribbon cartridge)
b (Gear 33RB)
(Front)
c
d
Ribbon drive gear (Gear 24) e
Friction torque transmission ASSY (Gear 46)
Main frame
Active Gears on the Right Side
III 11
[4]
Copying mode (Solenoid: ON, Motor rotation: Forward)
The control electronics activates the solenoid to release the stopper of arm A from the clutch lever. When the motor rotates in the forward direction, the sun gear 20/90 ("B") rotates counterclockwise so that the planet gear 20A ("L") transmits the torque to the document scanner mechanism (e.g., the separation roller gear ("F"), white pressure roller gear ("I") and document ejection roller gear ("K")) and the planet gear 20B ("C") transmits the torque to the recording mechanism (e.g., the platen gear ("a"), paper feed roller gear ("T"), and paper ejection roller gear ("X")). If the platen gear ("a" in the figure below) on the left end of the platen shaft rotates, the gear 33RB ("b") on the right end also rotates so as to drive the friction torque transmission ASSY and ribbon drive gear ("e") that rotates the ribbon take-up gear ("f") in the ribbon cartridge, as shown on the next page.
C (Planet gear 20B) Stopper of arm B Stopper of arm A Cutout x of clutch lever B (Sun gear 20/90)
Clutch lever
L (Planet gear 20A)
Solenoid Arm A Released from Coutout X of Clutch Lever
X (Paper ejection roller gear) T (Paper feed roller gear)
U V W a Q P G M L E H J
a (Platen gear) C (Planet gear 20B) F (Separation roller gear) I (White pressure roller gear)
Z O
(Front) S (Planet gear 34) R (Sun gear 39/24) Y (Planet gear 44) N (Sun gear 36/27) B (Sun gear 20/90) Solenoid
Clutch lever A (Motor gear) L (Planet gear 20A)
K (Document ejection roller gear)
Active Gears on the Left Side
III 12
Platen frame
f (Ribbon take-up gear in the ribbon cartridge)
b (Gear 33RB)
(Front)
c
d
Ribbon drive gear (Gear 24) e
Friction torque transmission ASSY (Gear 46)
Main frame
Active Gears on the Right Side
III 13
2.3.4
Power transmission route Rotation of the motor gear is transmitted as shown below.
U T S R Q P O B N Y M L A E G H J a Z C I K D F W V X
Gears on the Left Side
b f c
e
d
Gears on the Right Side
A: B: C: D: E: F: G: H: I: J: K: L: M: N: O: P: Motor gear Sun gear 20/90 Planet gear 20B Gear 33 Gear 20/40 Separation roller gear Gear 14/20 Gear 14/20 White pressure roller gear Gear 14/20 Document ejection roller gear Planet gear 20A Gear 39 Sun gear 36/27 Gear 39 Gear 18 Q: R: S: T: U: V: W: X: Y: Z: a: b: c: d: e: f: Gear 33 Sun gear 39/24 Planet gear 34 Paper feed roller gear Gear 18/41 Gear 18/41 Clutch gear Paper ejection roller gear, Gear 40 Planet gear 44 Gear 33/45 Platen gear, Gear 23 Gear 33RB Gear 20/40 Gear 18 Friction torque transmission ASSY (Gear 46) and ribbon drive gear (Gear 24) Ribbon take-up gear in the ribbon cartridge
[1]
Scanning Mode (Solenoid: OFF, Motor rotation: reverse)
(Motor)
A§B
C§D§E§F§G§H L (Idling)
(Separation roller)
I (White pressure roller) J§K
(Document ejection roller)
[2]
Paper Feeding/Ejecting Mode (Solenoid: ON, Motor rotation: reverse) C (Idling) A§B
(Motor)
L§M§N
O§P§Q§R§S§T§U§V§W§X Y (Idling) III 14
(Paper feed roller) (Paper ejection roller)
[3]
Recording Mode (Solenoid: OFF, Motor rotation: forward)
(Motor)
A§B
C§M§N L (Idling)
Y § Z § a (Platen) § b § c § d § e § f (Ribbon take-up gear) O§P§Q§R§S§W X (Paper ejection roller) V§U§T
(Paper feed roller, Idling)
[4]
Copying Mode (Solenoid: ON, Motor rotation: forward) C§M§N A§B
(Motor) (Separation roller)
Y § Z § a (Platen) § b § c § d § e § f (Ribbon take-up gear) O§P§Q§R§S§W I (White pressure roller) J§K
(Document ejection roller)
X (Paper ejection roller) V§U§T
(Paper feed roller)
L § E § F§ G § H
III 15
2.4
Sensors and Actuators
This equipment has four photosensors and three mechanical switches (two for the FAX1010) as described below. Sensor name Document front sensor Document rear sensor Paper ejection sensor Paper-edge sensor Cover sensor Ribbon sensor Hook switch sensor* · · Type Photosensor (PH1) Photosensor (PH2) Photosensor (PH1) Photosensor (PH2) Mechanical switch (SW1) Mechanical switch (SW1) Mechanical switch (SW1) Located on Main PCB Main PCB Sensor PCB Sensor PCB Modular PCB Recording head Hook switch PCB
Document front sensor which detects the presence of documents. Document rear sensor which detects the leading and trailing edges of pages to tell the control circuitry when the leading edge of a new page has reached the starting position and when the scan for that page is over. Paper ejection sensor which detects whether a paper jam has occurred. Paper-edge sensor which detects the leading and trailing edges of paper and the presence of paper as well as detecting whether the paper front cover is closed.
· ·
These photosensors are of a reflection type consisting of a light-emitting diode and a lightsensitive transistor. Each of them has an actuator separately arranged (see the next page), except that the paper-edge sensor has two actuators for sensing the paper and the paper front cover. When an actuator is not activated, its white end lies in the path of light issued from the light-emitting diode and reflects its light so that the reflected light enters the lightsensitive transistor. If a document or paper comes in so as to activate the actuator, the actuator's white end goes out of the light path and no reflected light enters the light-sensitive transistor. This way, the sensor detects the presence of documents or paper. · · · Cover sensor which detects whether the recording paper cover ASSY is closed. Ribbon sensor which detects whether the ink ribbon is loaded. Hook switch sensor* which detects whether the handset is placed on the handset mount.
The cover sensor has an actuator separately arranged (see page III-18). If the actuator is activated, its lower end releases the cover sensor lever so that the sensor signals the detection.
Path of actuator's end
Approx. 0.7 mm
Glass
Lightemitting diode * Not provided on the FAX1010
Lightsensitive transistor
III 16
(Front) Document rear sensor Document rear sensor actuator Document front sensor Document front sensor actuator
Main PCB
Paper-edge sensor actuator Paper-edge sensor Paper ejection sensor actuator Paper ejection sensor Front cover sensing actuator
(Front)
Sensor PCB Recording head Ribbon sensor Ribbon sensor actuator
Location of Sensors and Actuators (1)
III 17
Cover sensor actuator
Cover sensor
Cover sensor lever
Modular PCB
Hook switch sensor actuator** Hook switch sensor** Hook switch PCB**
Handset mount*
Location of Sensors and Actuators (2)
* Not provided on the FAX1010 ** Not provided on the FAX1010 or those versions equipped with a Binatone handset
III 18
3. CONTROL ELECTRONICS
3.1 Configuration
The hardware configuration of the facsimile equipment is shown below.
Line
External telephone
Handset*
2-pin 4-pin
2-pin
(Note) 12-pin: U.S.A. versions 18-pin: European versions
NCU PCB
(Note)
PC I/F
2 Modular* PCB
P2 8-pin
Main PCB
*1
5-pin
14-pin
COG
Control panel PCB
Speaker
2-pin 6-pin
ASIC
7-pin
CIS unit
14-pin
Motor Solenoid
2-pin
FPC key
11-pin 2-pin 2-pin
5-pin
2-pin
4-pin
*3 Sensor PCB *5 Recording head
* Hook *4 switch PCB
Microphone
Ni-MH battery
(Only on the FAX1570MC/1030/MFC1870MC/1970MC)
4-pin
Power supply PCB
*1 On the main PCB are these sensors:
· Document front sensor (PH1) · Document rear sensor (PH2)
*2 On the modular PCB is the cover sensor. *3 On the sensor PCB are these sensors:
· Paper ejection sensor (PH1) · Paper-edge sensor (PH2)
*4 On the hook switch PCB* is the hook switch sensor (SW1). *5 On the recording head is the ribbon sensor (SW1).
* Not provided on the FAX1010 Configuration of Facsimile Equipment
III 19
3.2
Main PCB
The main PCB, which is the nucleus controlling the entire operation of the equipment, consists of a FAX engine (ASIC), memories, MODEM, motor drive circuitry, sensor detection circuitry, and analog circuits for scanning, recording, and power transmission shifting.
ROM Control panel E2PROM Recording head DRAM NCU Power supply Speaker Modular PCB (for PC I/F) Hook switch sensor* Sensors FAX engine (ASIC) Motor driver Motor CIS
Sensors Ni-MH battery Microphone
E2PROM: DRAM:
** Not provided on the FAX1010 or those versions equipped with a Binatone handset
Electrically Erasable Programmable Read-only Memory Dynamic Random Access Memory
Block Diagram of Main PCB
On the following pages, the main PCB circuit diagrams are described on the basis of the FAX1570MC/1030/MFC1870MC/1970MC.
III 20
1
2
3
4
5
6
7
8
5
Q6 L 3 0 RH5 V A 4 3 V CC OUT
+ 5 V
R9 0 1 . 5 K
RS T L
1 6 A , 4 7 B , 1 4 B , 5 7 E
# 9 T 7 D6 0
4 4 6 4 6 1 6 2 6 3
RS T
RT CCON RV DD
RS T L RV DD
1 4 A
A
GND
F G
GND C6 5 CC1 0 4 R8 0 1 M R1 1 6 1 0 0
7 0 7 5 1 2 4 1 2 3 1 4 3 1 4 1
E X T L X T L
RE X T RX T
3
R9 1 0 X T 3 C- 0 0 1 R C7 5 CC1 0 P P B US C7 4 CC1 2 P
A
6
P A NE L 5 1 3 2 4
GND + 5 V
X T 1 C S A 1 6 MX
R8 2 0
2 5 D 2 5 D
RA S R1 1 4 1 0 0 CA S 2 7 B R MR D
RA S 0 CA S R MR D R M WE R OMC I ORD I O WE MM1
8 4 8 5 8 6 8 7
CRX D CK S T X D RX D CT S
2 0 2 1 9 9 1 9 6 1 9 7 1 9 8
CRX D CK S T X D RX D CT S
C6 1 CC3 0 P R8 *
C6 2 CC3 0 P 2 7 B R OMC
1 2 2 1 6 6 1 6 7
MM1 MM2 MM3 MM4
1 7 B GND
R7
4 7 0 1 5 B 1 5 B P CL K S DOT S DI N GND
R9
4 7 0 1 5 B
2
R8 5 1 4 A RS T L
+ 5 B R8 4 2 2 K *
1 2 B 1 2 B 1 2 B
P CL K S DOUT S DI N
1 7 7 1 7 6 1 7 5
P CL K S DOUT S DI N
MM2 MM3 MM4
P CI MB U S 2 3 C + 5 V
B
P 1 1 B 5 B - P H WH I T E C1 4 C1 0 1 C1 5 C1 3 C1 0 1 C1 0 1
6 7 6 6
CK 3 2 ON CK 3 2
T S T A T S T B I ORQ
4 5 4 6 1 2 5 1 2 6 1 4 0 1 4 4 1 4 5 1 4 6 1 6 8 1 6 9 1 7 0 1 7 1 1 7 2
3 L 5 V I ORQ R8 3 MR E Q CK 1 6 RX D R8 1 2 0 0 RD WR RB US 3 4 D C1 7 * GND P 1 5 I MS A - 9 1 1 0 S - 0 8 L GND 7 1 2 D CS E N R1 0 4 . 7 K CT S 1 0 K L 5 V 1 6 B P B US CRX D + 5 V CK S T X D 1 6 5 4 2 8
B
R8 8
1 0 0
6 8
+ 5 B C1 6 CC1 0 4 GND GND GND + 5 V # 9 T 7 D6 0 R1 3 2 1 0 K R8 7 3 3 A 4 2 F 4 3 D L I GT DA S NO DA RE C 5 2 C CL B S Y
2 1 2 2 2 3 2 4 2 5 2 0 5
B A K CL K B A E NB B A V DD B A K S E L B A R MR D B A R M WE
MR E Q CK 1 6 CK 8 M RD WR N MI I NT
1 4 A
RS T L
7 3 7 4 6 5 7 2 7 1
9
C7 1 CC1 0 2 B C6 7 CC1 0 4 R7 0 2 0 0
1 7 1 8 1 9 2 0
2 5 C 2 5 C
B A R MR D B A R M WE
GND A D MD A A MD
GND
4 2 F 4 6 E
A DL C V OL 1 E A T C ML H RDP S P L S T E L L HOOK CI T L OF L 5 V
5 7 8 3 8 2 1 8 7 1 8 8 1 8 9 1 9 1 1 9 2 1 9 3 1 9 4 1 9 5 3 9 4 0 1 8 4 2 0 3
L N C R ( C OMP ) S OL P WO N C ML DP S P L S T E L HOOK CI T L OF S T D RI NG S P ON E 2 CS CT X D ( OD)
B S A K B S RQ WA I T RF S H M1
1 0 K 1 0 k 1 0 k
R5 9 R6 8
M I O 0 ( P WM ) M I O 1 ( P WM ) M I O 2 ( P WM ) MI O3 MI O4 MI O5 MI O1 1 MI O1 2 MI O1 3 MV D D
A D P D MD A A P D MD D P D MD T D P D MC K A P D MC K A P D MD T C5 C4 C3 C2 C1 C0
1 6 1 4 1 2 1 1 9 8 3 2 1 6 5 4 1 3 7
4 2 F 4 2 B , 3 8 E 4 2 E 4 3 E 4 3 A 1 7 C 4 2 F 4 2 F
1 7 3 1 7 4
R6 7 R6 6 R6 4
2 0 0 3 0 0 3 0 0
D MT D MK A MK A MT C3 C4 C5 C0 C1 C2 A MU T MU T T B US 4 8 A , 5 8 D
C
C5 0 0 C3 8 0 C7 0 CC1 0 4
5 2 D CL RX S R1 3 3 1 0 k L 5 V 4 3 B 4 4 D 4 5 D + 5 V GND C3 9 CC1 0 4 GND T A DH T X S L HA F H
1
A 0 A 1 A 2 A 3 A 4 A 5 A 6 A 7 A 8 A 9 A 1 0
1 3 6 1 3 7 1 3 8 1 3 9 1 4 8 1 4 9 1 5 0 1 5 1 1 5 2 1 5 3 1 5 4 1 5 5 1 5 7 1 5 8 1 5 9 1 6 0 1 6 1 1 6 2 1 6 3
A 0 A 1 A 2 A 3 A 4 A 5 A 6 A 7 A 8 A 9 A 1 0 A 1 1 GND C1 8 CC1 0 1 GND P 1 4 B 2 B - P H WH I T E 2 1 5 C HOOK R1 1 4 . 7 K HOOK L 5 MMZ Y 6 0 1 B 1 + 5 V
C
2 0 8 2 0 4
MV S S MON MD C K
A MU T E MU T E
8
4 # 1 2 3 7 4 V HCU0 4 F S 2 1 R6 0 4 . 7 K
4 5 E 4 6 E 4 6 D 4 2 D
RNGO V OL 3 RNGL OT O
:
R8 6 4 2 F DA S T
*
1 0 3
L I G T ( P WM )
ME X T L MT X L
2 0 7 2 0 6
L 2
1 0 0
3 2 F 3 3 C
L A T C C L MP C P WM
8 9 1 8 5 1 8 6
P O1 P O2 P 0 3 ( OD)
A 1 1 A 1 2 A 1 3 A 1 4
4 6 E C6 8 * 3 2 F 3 8 C 4 2 F
S P ON RI B ON F RNT T L OF 2 F S E N RS E N CS E N RE A R
8 0 7 6 7 7 7 8 7 9 3 0 3 1 3 2
S E ON( OD) S E N2 S E N3 S E N4 S E N5 S E N6 S E N7 S E N8 DA 0 DA 1 DA 2 DA 3 DA 4 DA 5 DA 6 DA 7 DA 8
1 0 9 1 1 0 1 1 1 1 1 2 1 1 3 1 1 5 1 1 6 1 1 7 1 1 8 1 2 0
R1 1 7
2 0 0 R1 1 8 2 0 0 RA 2 2 0 0
3 3 C DA 0 DA 1 DA 2 DA 3 R6 1 DA 4 DA 5 DA 6 2 2 0 X T 2 D5 7 . 6 D6 3 8 E
A B US
2 6 B , 3 4 D
D
GND
3 7 B 3 7 B 1 7 B + 5 V E 5 V 3 8 C
4
C4 1 CC5 P GND
A 1 5 5 3 B 2 5 B 2 3 F CL S E L E P CK S OL P WO N
2 6 2 7 2 8 2 9
R M1 R M2 R M3 R M4
MA 1 6 MA 1 7 MA 1 8
D
GND CL RS T CL CI CL T X S CL CK CL B US V OL 2 4 6 E 5 1 C + 5 V + 5 B
ODP I O0 C4 2 CC5 P R7 9 R7 8 DA B US 3 4 C 2 5 B C0 V 2 3 E MT V R * * ODP I O1
1 8 2 1 8 3 1 0 8 4 1 1 2 1 6 9
1 7 8 1 7 9 1 8 0 1 8 1 4 2
RA 1 2 0 0
DA 7 DA 8 DA 9
P I O1 P I O2
ODP I O2 ODP I O3
3 2 E 3 2 E 3 2 E 3 2 E 3 2 E
S T 1 S T 2 HDC DI N DOUT
9 2 9 1 9 3 9 4 9 0
S T 1 S T 2 HDC DI N DOUT
DA 9
D0 0 D0 1 D0 2 D0 3 D0 4
1 2 7 1 2 8 1 2 9 1 3 0 1 3 1 1 3 3 1 3 4 1 3 5
D0 D1 D2 D3 D4 D5 D6 D7 DB US
2 6 B , 2 6 E
S RA M E P DO
P I O3 ( S R A M) OD P I O4 P I O4 ( OD) P I O5 P I O6 F DCL K F DOUT F DI N
3 3 3 4 3 5 3 6 3 7
D1 * CT S E L 5 3 A , 5 3 B
R1 2 5 0
GND
E 0 V
7
E
+ 2 6 V R9 6 7 5 K R9 5 1 0 K F E 5 V C7 9 CC1 0 4 3 3 D CP 3 I
3 4 C 3 4 C 3 6 C
E 1 CS S MC RDA T
1 0 6 1 0 7 1 0 2
R1 3 1 L 5 V
1 0 K
F CS 1
8 8
A
E
E 1 CS S P S L ( S MC ) RDA T
D0 5 D0 6 D0 7
E I T 1
F CS 2
RV DD
+ 5 V 2 5 E , 3 6 D P 7 *
R1 2 7 *
C1 0 8 CC1 0 4
2 3 C 2 3 C
MT I 1 MT I 0
9 5 9 8 9 9
CL 2 CL 1 CL B RB DI F T G
V DD V DD V DD V DD V DD V DD V DD
1 0 4 3 9 7
S HORT - 2
L 4
1 1 4 1 3 2 1 4 7 1 6 5 1 9 0 2 0 1
+ 5 V GND GND C6 * L 5 V L 1 0 GND
3 2 A 3 7 D 3 4 C, 3 2 A
RB S E ON T G
1 0 0 1 0 1 1 0 4
0
5 2
RDA 6 1 CP 1 I CP 3 I CP 4 I CP NN
V DD V DD
3 3 B
V I D
5 6 5 5 5 4
V S S V S S V S S
1 5 3 8
1 4
R9 2 7 5 F
E 0 V
5 3
# 1 2
6 0
C4 0 CC1 0 4
7
7 4 V HCU0 4 F S
8 1 9 6 5 9 1 1 1 3
5 0
RDA 6 A V DD A V DD RE F H RE F L A GND A GND
V S S V S S V S S V S S V S S V S S V S S V S S
E 5 V R9 3 1 0 0 F
5 1 5 8 4 9 4 8 4 7
C4 3
1 0 5 1 1 9 1 4 2 1 5 6 1 6 4 2 0 0
C5 1 CC1 0 4
C5 9 CC1 0 4
C6 0 CC1 0 4
c 6 3 CC1 0 4
C6 6 CC1 0 4
C6 9 CC1 0 4
C7 2 CC1 0 4
C0 V
CC1 0 4
F
L X 0
F
R9 4 7 5 F C7 8 CC1 0 4 C7 7 CC1 0 4 C7 6 CC1 0 4 C7 3 CC1 0 4
5 9
E 0 V E 0 V GND
GND
1
2
3
4
5
6
7
8
Main PCB Circuit Diagram 1/5
1 FAX engine (ASIC) which integrates a CPU, digital portion of MODEM and gate array for managing the I/Os, memories, and drivers. 2 XT1, oscillator for the CPU. 3 XT3, oscillator for the calendar clock. 4 XT2, oscillator for the MODEM. 5 Reset IC which turns on at the powering-on sequence and at any of the reset operations. 6 Connector for the control panel 7 Recording head drive voltage detector 8 Inverters 9 Connector for the modular PCB : Connector for the hook switch PCB A Backup circuit for the calendar clock
III 21
1
2
3
4
5
6
7
8
P S + 2 6 V
2
+ 9 V # 3 K I A 7 8 0 5 I N GND + 5 V C9 5 CC1 0 4 C3 1 6 V 4 7 C9 6 CC1 0 4 C9 7 CC1 0 4 C5 1 6 V 4 7 # 8 P D2 7 C2 0 0 1 B - 1 5
1 8 4
A
1
4 1 OUT + 5 V
8
GND + 5 V C5 8 CC1 0 4 GND R1 2 0 4 . 7 k + 5 V V CC V S S
1
A
2 3 GND P 0 V P 3 B 4 B - P H + 9 V
V P P V CC - CE - OE - P GM
GND
1 6
3 2
4
Q1 2 RH5 RA 4 7 I N GND OUT C9 1 CC1 0 4
6
1 5 D + 5 V 1 5 D R1 1 9 *
E P CK
5
S CL S DA
7
A 0
2
R7 6
S T D D. S
MOD E L = 0 MOD E L = *
1 5 A 1 5 A
R OMC R MR D
2 2 2 4 3 1
E P DO
A 1
3
T E S T
A 2
R7 7
S T D D. S
MOD E L = * MOD E L = 0
DA 9
A 0 A 1
1 2 1 1 1 0 9 8 7 6 5 2 7 2 6 2 3 2 5 4 2 8 2 9 3 2 3 0
A 0 A 1 A 2 A 3 A 4 A 5 A 6 A 7 A 8 A 9 A 1 0 A 1 1 A 1 2 A 1 3 A 1 4 A 1 5 A 1 6 A 1 7 D0 D1 D2 D3 D4 D5 D6 D7
1 3 1 4 1 5 1 7 1 8 1 9 2 0 2 1
DA 1 1 S S 3 7 8 B A T
+ 5 B 1 4 D # 4 2 4 L C 1 6 ( 1 8 7 0 MC ) 2 4 L C 3 2 ( 1 9 7 0 MC ) C4 1 6 V 4 7 DA B US
A 2 A 3 A 4 A 5 A 6
B
R1 1 3
3
P 6
9
D0 D1 D2 D3 D4 D5 D6 D7
B
1 K 1 2
GND GND
A 7 A 8 A 9 A 1 0 A 1 1 1 6 D A B US DA 3 DA 4 DA 5
B 2 B - P H B L A CK
MOT OR
5
C
P 2
3 4 2 6 5 1
2 7 8 1 3 3 5 6
# 1 MT D 2 0 0 3 F
2 7 2 6 1 7 1 6
DA 6 DA 7 DA 8 MB U S 1 6 B
OUT 1 OUT 2 OUT 3 OUT 4 NC NC NC NC NC NC NC NC
I N1 I N2 I N3 I N4
MM1 MM3 MM2 MM4
C
1 5 A RA S CA S
B 6 B - P H + 5 V
I 0
2 5
1 5 A MT I 0 1 2 E 1 5 B 1 5 B MT I 1 1 2 E
9 1 0 1 2 1 9 2 4
B A R M WE B A R MR D
I 1
1 8
R1 1 0 0
R1 3 0 2 0 K
6
V MM
1 1 4 1 5 2 8
+ 5 B
C9 4 CC1 0 4
GND
+ 5 B
C9 3 CC1 0 4
GND
+ 5 B
C6 4 CC1 0 4
GND
+ 5 V
+ 2 6 V # 7 ( 1 9 7 0 MC ) # 5 ( 1 9 7 0 MC ) # 6 ( 1 8 7 0 MC )
H M5 1 4 4 0 0
1 3 2 6
H M5 1 4 4 0 0
1 3 2 6
H M5 1 4 8 0 0 J P
1 1 5
2 2
V R
V MM V CC
V CC
4
V S S
4
V CC
V S S
1 4 8
V CC V CC
V S S
2 8
2 1
C/ R
V CC
V S S
6
- RA S C1 0 6
2 3 4 2 0 1 1 2 3 2 3
- RA S
2 3
- RA S - CA S
7
V S A RS A V S B RS B GND GND
2 9 3 0
- CA S
3 3
- CA S - WE
2 2 2 2
NC
2 1
D
CC3 3 2 B R1 1 2 * R1 1 1 *
C1 0 5 CC1 0 4
C9 0 CC1 0 4
C1 0 7 5 0 v CC1 0 4
C1 3 5 V / 2 2 0 1 0 5 C DA 0 DA 1 P 0 V DA 2 DA 3 DA 4 DA 5 DA 6
9 2 2
- WE - OE
1
- WE - OE
1
NC
D
- OE D0 D1 D2 D3 DA 0 DA 1 DA 2 DA 3 DA 4 DA 5 DA 6 DA 7 DA 8 DA 9
9
D4 D5 D6 D7
A 0
1 0
DQ1
2
A 0
1 0
DQ1
2
DA 0 DA 1 DA 2 DA 3 DA 4 DA 5 DA 6 DA 7 DA 8 DA 9
1 0
2
D0 D1 D2 D3 D4 D5 D6 D7
A 0
1 1
DQ1
3
R2 1 / 2 W 1
R1 1 / 2 W 1
A 1
1 1
DQ2
2 4
A 1
1 1
DQ2
2 4
A 1
1 2
DQ2
4
A 2
1 2
DQ3
2 5
A 2
1 2
DQ3
2 5
A 2
1 3
DQ3
5
A 3
1 4
DQ4
A 3
1 4
DQ4
A 3
1 6
DQ4
2 4
A 4
1 5
A 4
1 5
A 4
1 7
DQ5
2 5
A 5
1 6
A 5
1 6
A 5
1 8
DQ6
2 6
P 0 V Q1 1 *
A 6
1 7
A 6
1 7
A 6
1 9
DQ7
2 7
DA 7 DA 8 DA 9 MT V R 1 5 D
A 7
1 8
A 7
1 8
A 7
2 0
DQ8
A 8
5
A 8
5
A 8
9
A 9
A 9
A 9
1 4 D
DA B US
E
1 4 E P 0 V DB A S
A :
E
S OL + 2 6 V
1
7
2 P 1 3 B 2 B - P H B L UE
D3 1 S S 1 2 0
Q2 DT D1 1 3 Z K
S OL
1 5 D
F
GND
F
1
2
3
4
5
6
7
8
Main PCB Circuit Diagram 2/5
1 Connector for the power supply PCB which supplies 25V and 8V. 2 3-terminal regulator which eliminates unstabilized components of the +8V source to generate stabilized +5V source. 3 Connector for the Ni-MH battery which supplies approx. 5V. (Provided on the FAX1570MC/1030/MFC1870MC/1970MC) 4 3-terminal regulator which generates +5B source from +8V to back up the DRAM (that stores received data). (Provided on the FAX1570MC/1030/MFC1870MC/1970MC) 5 Connector for the motor 6 Motor driver 7 Connector for the clutch solenoid (that switches the power transmission). 8 E2PROM (32-kilobit for the FAX1570MC/1030/MFC1970MC, 16-kilobit for other models.) 9 ROM (2-megabit. Note that the qualification machines for demonstration have a 4megabit ROM.) : DRAMs (1-megabyte, two 4-megabit chips) provided on the FAX1570MC/1030/ MFC1970MC. A DRAM (512-kilobyte) provided on the MFC1870MC. The FAX1170/1270/1010/1020/ MFC1770 has its equivalent DRAM on location #7.
III 22
1
2
3
4
5
6
7
8
CI S
R5 V
+ 5 V
1 -1 1 -2 1 -3
A B
A
1 2 R5 V + 2 6 V R5 V + 5 V R9 7 3 R9 8 4 2 7 0 T G 1 2 E Q1 2 S D1 8 5 8 5 C8 2 CC1 0 4 6 R0 V R3 1 W 3 0 R0 V GND
4 2 3 8
4 7 0 RB 1 2 E Q8 2 S C3 0 5 2 L I GT 1 1 C
R1 2 3 3 0 0 R0 V R1 2 2 2 0 0 GND
3 -2
1 2 D 1 2 D F S E N RS E N
3
S E NS OR + 2 6 V R1 2 8 1 0 0 K 5 2 4 1 3 C1 1 2 * C1 0 4 CC1 0 2 B GND C1 0 3 CC1 0 2 B P 1 B 5 B - P H B L A CK
R1 2 9 1 0 0 K
R5 V
1 -4
R1 2 1 0
C1 0 0 *
C1 0 2 CC1 0 4
# 1 0 L C8 2 1 0 2 W
1 0 2 4 5 6
1 -7
V DD V DD V DD + 5 V DGND DGND DGND
9 1 7 2 6 4 9 6 4
3 -1
B
RS T H RS T L A I N T E MP A T A P A DRE F L
7
3 9 4 0 4 1
P 9 B 7 B - P H
C8
1 6 V / 1 0 V I D 1 2 E C7 1 6 v C8 1 CC1 0 4
3 7
1
C
C9 8 CC1 0 4
C9 9 CC1 0 4
+ 5 V
4 5 4 4 3 5 3 4
P ORT 0 P ORT 1 P ORT 2 P ORT 3
DGND DGND
Q1 0 R1 0 2 1 0 K R1 0 3 1 K K RC1 0 7 S
1 -5
C L MP Q9 R5 V 1 5 D 2 S K 1 3 9 9 R5 V R1 0 0 Q7 2 S C3 0 5 2 C P WM R9 9 2 2 K 1 5 D 2 . 2 K
1 0
S D/ P D7 P D6
4 7 4 8 5 0 5 1 5 2 5 3 5 4 5 5 5 7 5 8 5 9
GND
R0 V R5 V
4 3
4 -1
1 2 E
P H2 S G- 1 0 5 F 3 0 8
R1 2 6 1 0 0 K RE A R 1 2 D
A V DD
P D5 P D4
C1 0 1 CC1 0 4 R0 V
3 6 4 6
R0 V
P D3 A GND A GND P D2 P D1 P D0
RDA T
GND
C
R0 V
1 2 E 1 2 E 1 2 E
T G S MC E 1 CS
3 1 3 0 2 9 2 8 2 7 2 3 2 2 2 1 2 5 3 2
T RI G I CL K I OCS MC S I OE ME RD WR CL K I N RE S E T
DA CK DRE Q MT P
GND + 5 V
1 5 D S RA M I ORQ C8 0 R1 0 1 1 0 K CC1 0 4 MR E Q
2
T M
1 -6
1 6 B RB US
S A MP RS S H CL K 1 CL K 2
3 3 6 2 6 3 6 1 6 0
RD WR CK 1 6 1 4 A A 0 RS T L
4 -2
D0 D1 D2 D3 D4 D5 D6 D7 DB US 1 4 E 1 2 E S E ON Q1 3 K RC1 0 7 S
P H1 S G- 1 0 5 F 3 0 8
R1 2 4 1 0 0 K F RNT 1 2 D
R0 V
R0 V
2 0 1 9 1 8 1 6 1 5 1 4 1 3 1 2 1 1
+ 5 V
A 0 A 1 A 2 A 3 A 4 A 5 A 6 A 7 A 8 D0 D1 D2 D3 D4 D5 D6 D7
8 7 6 5 4 3 2 1
A 1 A 2 A 3
GND
2 -1 2 -2
D
9
+ 5 V
R1 0 7 3 3 K F CP 3 I 1 2 F
A 4 A 5
D
1 0
A 6 A 7
R1 0 8 1 0 0 K F 1 1 R1 0 9 C1 0 9 CC1 0 2 1 0 K F 1 6 D A B US
A 8
GND
4
1 P WO N 1 5 D
2 -3 2 -4 2 -3
E
GND
6 8 R1 0 6 7 2 R1 0 4 3 6 2 0 0 HDC S T 1 1 2 D 1 2 D 4 2 E C ML L 1 0 0 DOUT DI N 1 2 E 1 2 E 4 3 C ML H 1 5 B S T 2 1 2 D 3 3 F HRL Y
E
C8 9 CC1 0 1
C8 4 CC1 0 1
C8 8 CC1 0 1
C8 5 CC1 0 1 2 # 1 3 U MG5 N GND
GND 1 L A T C HRL Y RI B ON 1 5 C 3 6 E 1 2 D
2 -5
P 5
5 4
C8 3 * B 1 1 B - P H
C8 7 *
C8 6 *
R1 0 5 1 0 K
F
GND
F
1
2
3
4
5
6
7
8
Main PCB Circuit Diagram 3/5
1 Connector for the CIS
1-1: 1-2: 1-3: 1-4 1-5: 1-6: Power for the CIS LED array Clock output Trigger signal output. One shot of this signal triggers a line of scan. LED control signal output circuit which controls the intensity of the CIS LED array. Input of video data (VID) to the FAX engine Clamp circuitry that gives the bias level to the amplifier of the VID input circuit according to the CLMP and CPWM signals issued by the CPU (that monitors the current video data input) for compensating the DC component of video signals for the next scan line. Working with the FAX engine, this circuitry carries out the standard scanning. (This circuitry is provided on the FAX1170/1270/1010/1020/MFC1770/1870MC.) SANYO LSI that carries out the high-quality scanning. (Provided on the FAX1570MC/1030/ MFC1970MC) Power 5V for the thermal recording head Thermister signals which are normalized by the resistor network and fed to the FAX engine Strobe signals Data signals Ribbon sensor signal
1-7
2 Connector for the thermal recording head
2-1: 2-2: 2-3: 2-4: 2-5:
3 Connector for the sensor PCB
3-1: Paper-edge sensor signal 3-2: Paper ejection sensor signal
4 Document front and rear sensor circuitry that is active only while the SEON signal is on.
4-1:PH2, document rear sensor 4-2:PH1, document front sensor
III 23
1
2
3
4
5
6
7
8
A
1
NCU S L 9 1 4 R2 2 1 / 1 0 W 1 K M0 V
C2 0
CC6 8 1
2 -1
T E L L 1 0
CNT
4
1 5 C CT S L 5 3 B 7 R3 3 1 . 5 K R3 0 4 . 7 K
R2 6
7 5 K
5
# 1 5 T C3 5 1 3 3 F R6 5
C2 5
CC2 2 1
R2 3
5 6 K
A
R3 1 1 3 R2 1 1 2 + # 1 8 K I 3 2 4
1 0 K
C2 7
CC1 0 4 1 5
0 C
2 6 1
R2 9
5 6 K
5 6 K
3
T X OUT
D P D MC K D P D MD T
6 7 9 1 0 1 1 1 2 1 3 5
D MK D MT A MK A MT C3 C4 C5 MU T
T B US
1 4 D
1 0 K + 5 V + 2 6 V R2 0 *
# 1 9
4 0 5 3
1
5 + # 1 8 I 3 2 4 A RE F
C4 9 CC1 0 2 B A P D MC K A P D MD T C3
M0 V D8 * C2 3 *
A RE F
C4 C5 MU T E
C ML H 1 1
CNT
1 5 C
M0 V T A DH 1 0
CNT
1 2 C C5 7 CC1 0 4 R7 1 2 7 K 2
R2 8
4 3 K
- P D
8 + 5 V
RS T L
1 4 A
RL 1
1 3 1 2
B
6 RL 2 7
1 C
1 4
2 1
0 C
V DD C4 5 1 3 + # 1 8 K I 3 2 4 A RE F R2 7 4 . 7 K R6 2 1 0 0 K C4 4 CC2 2 1
1 6 2
1
B
1 5
0
# 1 9
4 0 5 3
R6 3
1 K
CC1 0 4
1 5
1
# 1 7
4 0 5 3
RX I NA C4 7 CC1 0 4 RX I NB V B I A S V S S V S S 4 1 4 MOV
2 -2
D4 *
R7 4 1 0 0 K 5 3 B CT S L
MOV
6
D2 HZ S 5 C
C4 6 CC1 0 3 B C9 1 6 V 1 0 C4 8 CC1 0 4 A RE F
D7
1 S S 1 2 0
M0 V
R1 3
0
7
D6 1 S S 1 2 0
C
R1 8
0
C
D5
*
5
T L S L
5 1 B , 5 3 B
C2 1
CC6 8 1 + 9 V
R2 4 R1 5 1 1 . 5 K 8
1 5 0 K 9 C2 2 1 0 + R2 5 2 0 0 K T L RL CC1 0 3 B C1 1 1 CC1 0 4 5 3 A
R1 4 4 . 7 K
R1 6 0 # 1 8 K I 3 2 4 A RE F R1 9 * DA RE C Q4 * R7 2 A RE F R7 3 1 . 5 K 1 . 5 K 1 3 1 2
0 1 C
CT RL 1 1 C 1 1 T X S L
CNT
5 1 A , 5 3 B
R1 7 M0 V *
1 2 C HA F H 9
CNT
D
Q3 K RC1 0 7 S
1 2 C
2 -3
RNGL 9
CNT
GND
# 2 N J M3 8 6 M 1 5 C 6 2 C2 8 CC1 0 5 ( 2 1 2 5 CHI P ) 5 3 + 4 R3 5 1 2 K R8 9 3 . 3 K R3 6 1 K R3 4 3 0 0 M0 V GND D1 0 1 S S 1 2 0 R1 1 5 3 3 K 8 7
8
C2 1 0 V 1 0 0 GND
9
S P 1 2 P 4 B 2 B - P H WH I T E
D
1 4
5 3
0 C
4
3 5
1 C
# 1 7
4 0 5 3
4
1
OT O R1 2 1 0 0 K
1 5 C
C1 9 CC1 0 4
3 -1
5 5 D
1
# 1 7
4 0 5 3
0
# 1 9
4 0 5 3
R7 5 1 . 5 K HF RL
M0 V
M0 V
1 0 C1 1 0
+ 5 V
CC1 0 4 1 1 GND + 2 6 V D9 1 S S 1 2 0 R5 3 8 1 3 1 4 1 6 1 7 1 8 2 1 5 4 RDP S E A T A DL C DA S T DA S ND 1 5 C + 5 V 1 5 B 1 5 B 1 1 D 1 1 C R6 2 2 K R3 7 2 2 K R4 1 K + 5 V T L OF T L OF 2 CI 1 5 C 1 5 C 1 2 D # 1 9 4 0 5 3 C1 2 P 1 0 I MS A - 9 1 1 0 S - 1 8 L GND GND M0 V M0 V M0 V CC1 0 3 B
6 7 8 6 7 8 1 6 1 6
+ 2 6 V
E
1 2
1 K P L S C ML L 1 5 C 3 6 E
3 -2 : -1 : -2 : -3
R3 2 1 0 0 K 1 5 C RNGO + 2 6 v
C9 2 CC1 0 3 B
1 5 B
V OL 1
1 5 E
V OL 2 Q5 K RC1 0 7 S
:
R1 3 4 1 K M0 V GND
E
C1 1 3 1 6 V 1 0 ( 5 mm)
1 5 C
V OL 3
1 2 D
S P ON
+ 5 V
4
C2 6 CC1 0 4
# 1 7 4 0 5 3
C5 6 CC1 0 4
# 1 8 K I 3 2 4
1 1
C2 4 5 0 V C1 1 3 5 V 1 0 CC1 0 4
F
F
M0 V
1
2
3
4
5
6
7
8
Main PCB Circuit Diagram 4/5
1 Connector for the NCU 2 Analog signal selectors 2-1: Selects either input signals from the handset or those from the MODEM. 2-2: Selects either RL1 or RL2 signals inputted from the communications network. 2-3: Selects either sound signals (e.g., alarm beeps, key clicks and ringer sounds) generated by the FAX engine or signals selected by 2-2. 3 Voice switching analog selectors 3-1: Switches between the output line and input line for monitoring. When switched to the output line, this selector allows FAX sending operation to be monitored; when switched to the input line, it allows received voices to be monitored. 3-2: Selects either voice signals inputted from the communications network or recorded voice signals inputted from the microphone or handset through the MODEM. 4 Amplifier circuit for signals outputted from the MODEM. 5 Analog front end IC which processes the analog I/O signals from/to the MODEM. 6 Amplifier & shaper circuit for signals inputted from the communications network. 7 Telephone circuit for transmitting signals. 8 Speaker amplifier circuit which amplifies sounds issued from the above analog signal selector 2-3 and feeds them to the speaker.
III 24
9 Connector for the speaker : Speaker volume control circuit
:-1: VOL1 :-2: VOL2 :-3: VOL3 Speaker volume OFF OFF OFF High ON OFF OFF Medium ON ON ON Low (ON: Closed OFF: Opened)
III 25
1
2
3
4
5
6
7
8
A
A
B
B
C
C
R5 5
7 5 K
3
# 1 6 T C3 5 1 3 3 F R5 6 6 R4 8 5 6 K 5 6 K
3
C3 5
CC2 2 1
7
T X OUT
D P D MC K D P D MD T
6 7 9 1 0 1 1 1 2 1 3 5
D MK A D MD
T B US
1 4 D
D
4 4 D
HF RL 5 + R4 7 4 . 7 K # 1 4 B A 1 0 3 5 8 F HRE F C3 6 CC1 0 2 B
D
A MK A A MD C0 C1 C2 A MU T
A P D MC K A P D MD T C3
C3 7 + 5 V
6 8 1 B
2
R5 3 * T L S L 5 1 B , 5 3 B R5 8 4 . 7 K
M0 V
HRE F
C4 C5 MU T E
R5 7 MI C R4 3 RL 1 6 RL 2 7 C3 2 R4 5 8 . 2 K C3 3 CC6 8 1 B R5 4 1 0 0 K R4 6 P 1 2 B 2 B - P H RE D 1 0 K 3 + 1 0 K C3 1 CC1 0 4 R4 4 8 . 2 K 2 -
1 0 0 K
- P D
8 + 5 V
RS T L
1 4 A
V DD C5 2 CC1 0 4 1
1 5
1
RX I NA C5 4
# 1 4 B A 1 0 3 5 8 F
R6 9 1 0 0 K
C5 3 CC2 2 1
1 6 2
CC1 0 4 RX I NB V B I A S V S S V S S 4 1 4 MOV HRE F
E
CC1 0 4
E
C1 0 MOV 1 6 V 1 0 C5 5 CC1 0 4 HRE F MOV
1
M0 V
+ 5 V
+ 5 V
1 6
8
# 1 1
C2 9 CC1 0 4
7 8
# 1 4 B A 1 0 3 5 8 F
4
C3 4 CC1 0 4
F
F
4 0 5 3
6
M0 V
M0 V
1
2
3
4
5
6
7
8
Main PCB Circuit Diagram 5/5
1 Connector for the microphone 2 Voice signal amplifier circuit 3 Analog portion of MODEM These are provided on the FAX1570MC/ 1030/MFC1870MC/1970MC.
III 26
3.3
NCU PCB
The NCU PCB switches the communications line to telephone or built-in MODEM, under the control of the main PCB.
1
2
+ 2 6 V CR1 MZ F - 2 4 H G o r C ML
3
4
5
6
2 3
4 S 0 V 5
2 A 3
1 A
RA 3 5 1 X 2
OUA Z - S S - 1 2 4 D
4
NCUS L
A
4
S B T 0 2 6 0 X 2 +
5
o r F L 5 R2 0 0 P NX 2 F G F G RL 2 P L S 4 1 4
RL 1
5
5 RE F RE F RE F CI 1 4
S 0 V
T E L S L T E L RL P L S T E L OF F CI RL 2
J W1 6
8
4
B
V 1
3
2 S 0 V
B
3
A
7
2 1 R2 4 J W
2
3
S 0 V F G S 0 V
C ML
6 9
+ 2 6 V
5 6 4
3 2
1
4 3
2 1
+ 5 V
+ 2 6 V + 2 6 V
T E L OF F 3 S 0 V + 5 V 4
8 o r B A 1 0 3 5 8 4
+ 5 V + 5 V S 0 V
S 0 V
4 - 4 P MJ
A
E S 0 V S B T 0 2 6 0 X 4 o r F L 5 R2 0 0 P NX 4 S RE F
C T E L RL
+ 5 V B
:
RE F
S 0 V
2 C 3 C
J W9 S 0 V S RE F
4
T E L S L
1
S 0 V S 0 V P 1 6 0 3 3 B - 1 2 Z
A
D
3 . C OMP ON E N T S I N P A RE NT HE S I S NOT T O B E MOU N T E D .
D
1
2
3
4
5
6
NCU PCB Circuit Diagram (U.S.A. versions)
1 Surge absorbers 2 Line relay (CML relay) 3 Line transformer 4 Circuit related to the line transformer 5 High-impedance transformer circuit 6 Calling signal detector 7 Loop current detector 8 Dial pulse generator 9 Telephone circuit : Reference voltage generation circuit for the operational amplifiers in 4 and 9 A Noise filters (provided on the FAX1570MC/MFC1870MC/1970MC)
III 27
1
2 2
CH2
2
3
4
5
6
J P 8 ( 5 ) A - OUT J P 1 1 ( 1 0 ) 4 5 6 T E L OF F 1 C B J P 2 2 ( 1 0 ) 1 L 1 3 3 3 2 K J P 1 9 ( 2 0 ) J P 3 0 ( C) C B M C + B + 5 V RDP S 1 3 RE F S 0 V DA S T 1 7 J P 2 0 ( 5 ) 2 C M 1 B J P 2 1 ( 2 0 ) M J P 2 9 3 P L S 3 J P 2 8 ( C) S P 3 S 0 V 3 4 2 T E L OF F 1 2 6
8
+ M E
RDP S
R6 5 0
S
A
L I NE
1
E
C3 7 CC3 3 3
7 3
4 5
J P 2 7 ( C)
9 Z D1 3 1 0 V
A
C ML
8
1
RL 1
6
2
J P 2 5 ( 1 0 ) J P 2 6 ( 5 )
2
E
C ML P L S + 1 4 -
3
RE F S 0 V K I A 3 2 4 P E A RT H RE F 1 3 6 RL 2 4 RE F T E L RL +
B
J P 1 7 ( 5 ) 2 3
+ 5 V
4
1 J P 9 ( 1 0 )
RDP S
A - OUT + 5 V
3
2
S 0 V S 0 V
2
C
T A D B I NA T ONE + 5 V
9
B
S 0 V
7
+ 5 V
1
4 P OL 1 5
2
3 S 0 V + 5 V 1 0
CN3 4 - 4 P MJ
T E L RL
A
S 0 V RE F F G
2
J W8 ( 1 0 ) S 0 V J W1 1
2
D
( 1 0 )
S 0 V
:
S 0 V S 0 V S 0 V J P 3 + ( 1 0 )
J W9 ( 1 0 )
J W1 0
S 0 V D G J P 3 4 DA S ND
2
( 1 0 )
1 2
S
P 1 B 2 B - P H
S OV
1
2
3
4
5
NCU PCB Circuit Diagram (European versions)
1 2 3 4 5 6 7 8 9 : a b
Surge absorber Noise filters Line relay (CML relay) Line transformer Circuit related to the line transformer High-impedance transformer circuit Calling signal detector Loop current detector Dial pulse generator & DC current loop circuit Telephone circuit Reference voltage generation circuit for the operational amplifier in 5. Line current detection input circuit
III 28
-
6
R2 7 1 0 K
+
+ S 0 V A DL C + 5 V S 0 V DA S ND S 0 V + 2 6 V P 2 - 1 8 Z
2 0
1 4
1 9
B
7
1
1 6
5
1 8
4
C
1 1
1 2
I MS A - 6 0 3 3 B
D
6
3.4
Control Panel PCB
The control panel PCB and the main PCB communicate with each other by serially transmitting commands and data. The control panel unit consists of a gate array, an LCD and LEDs (not provided on the FAX1170/1270/1010/1020/MFC1770), which are controlled by the gate array according to commands issued from the FAX engine on the main PCB. The calendar clock is backed up by the backup circuit on the main PCB. The panel FPC is a flexible keyboard PCB which integrates the key matrix having rubber keytops.
Main PCB SIDN SDOUT PCLK FAX Engine
Control Panel PCB LCD
Serial Communications Ports Gate Array I/O Ports +5V POWER
Panel FPC (Key Matrix)
+5V RESET Backup Circuit Reset Circuit RESET LEDS
(Not provided on the FAX1170/1270/1010/ 1020/MFC1770)
Control Panel PCB and its Related Circuit
III 29
3.5
Power Supply PCB
The power supply uses the switching regulation system to generate DC power (+25V and +8V) from a commercial AC power supply. The +25V source is stabilized and fed to the motor and solenoid for feeding documents and recording paper, the main PCB, and also fed to the CIS LED array. The +8V source is not stabilized and fed to the speaker. It is also fed to the main PCB where the 3-terminal regulator eliminates unstabilized components of the +8V source to generate stabilized +5V source. The +5V source is fed to the logic, control panel, recording head, and sensors.
Fuse Commercial AC Power Line Lightning Surge Absorption Circuit Link Filter Rectifier Circuit
Main PCB Output Feedback 25 V Output Circuit 8V Output Circuit 25 V
Oscillator Circuit
8V
Power Supply Circuit
III 30
CHAPTER IV.
DISASSEMBLY/REASSEMBLY AND LUBRICATION
CONTENTS
1. DISASSEMBLY/REASSEMBLY .................................................................... s Safety Precautions .................................................................................... Tightening Torque List ............................................................................ IV-1 IV-1 IV-2
s Preparation ................................................................................................ IV-3 s How to Access the Object Component ...................................................... s Disassembly Order Flow ........................................................................... 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Recording Head ASSY .......................................................................... Recording Paper Cover ASSY .............................................................. IV-3 IV-4 IV-5 IV-8
Platen ..................................................................................................... IV-9 Lock Levers and Their Shaft ................................................................. IV-10
Chute ASSY ........................................................................................... IV-11 Paper Feed Roller ASSY and Paper Feed Sub Chute .......................... Paper Feed Chute, Sensor PCB, and Paper-edge and Paper Ejection Sensor Actuators ................................................... Paper Ejection Roller ............................................................................ Gears on the Platen Frame ................................................................... IV-12 IV-15 IV-17 IV-18 IV-19 IV-21
1.10 Control Panel ASSY .............................................................................. 1.11 Panel Rear Cover and Control Panel ....................................................
1.12 Inner Cover ............................................................................................ IV-23 1.13 White Pressure Roller and CIS Unit ...................................................... IV-24
1.14 Handset Mount ....................................................................................... IV-26 1.15 Side Covers R and L ............................................................................. 1.16 Speaker and Battery ............................................................................. 1.17 Document Front Sensor Actuator .......................................................... IV-27 IV-29 IV-30
1.18 Main Frame ............................................................................................ IV-31 1.19 Separation Roller, its Support, and Document Rear Sensor Actuator ... 1.20 Document Ejection Roller and CIS Leaf Spring .................................... IV-33 IV-35
1.21 Motor ...................................................................................................... IV-36 1.22 Solenoid ................................................................................................. IV-37 1.23 Drive Gears ............................................................................................ IV-38 1.24 Friction Torque Transmission ASSY, its Related Gears, and Slip Gear 40 ................................................................................... 1.25 Ribbon Bushings ................................................................................... IV-39 IV-40
1.26 Bottom Plate .......................................................................................... IV-40 1.27 Main PCB, NCU PCB and Modular PCB .............................................. 1.28 Power Supply PCB ............................................................................... 1.29 Harness Routing ................................................................................... 2. IV-41 IV-43 IV-45
LUBRICATION ................................................................................................ IV-46
1. DISASSEMBLY/REASSEMBLY
s Safety Precautions To prevent the creation of secondary problems by mishandling, observe the following precautions during maintenance work. (1) (2) (3) (4) Always turn off the power before replacing parts or units. When having access to the power supply, be sure to unplug the power cord from the power outlet. Be careful not to lose screws, washers, or other parts removed for parts replacement. When using soldering irons and other heat-generating tools, take care not to damage the resin parts such as wires, PCBs, and covers. Before handling the PCBs, touch a metal portion of the equipment to discharge static electricity; otherwise, the electronic parts may be damaged due to the electricity charged in your body. When transporting PCBs, be sure to wrap them in conductive sheets such as aluminum foil. Be sure to reinsert self-tapping screws correctly, if removed. Tighten screws to the torque values listed on the next page. When connecting or disconnecting cable connectors, hold the connector bodies not the cables. If the connector has a lock, always slide the connector lock to unlock it. Before reassembly, apply the specified lubricant to the specified points. (Refer to Section 2 in this chapter.) After repairs, check not only the repaired portion but also that the connectors and other related portions function properly before operation checks.
(5) (6) (7) (8) (9) (10)
IV 1
Tightening Torque List
Location Recording head ASSY Recording paper cover ASSY Chute ASSY Paper feed chute Panel rear cover Inner cover CIS holders R and L Handset mount Bottom plate (main frame) Main frame Motor Friction holder
(Friction torque transmission ASSY)
Screw type Screw, cup S 3x6 Taptite, cup S 3x8 Taptite, cup S 3x8 Taptite, cup S 3x8 Taptite, cup B 3x8 Taptite, cup S 3x8 Taptite, cup B 3x8 Taptite, cup B 3x8 Screw, cup S 3x6 Taptite, cup B 3x8 Screw, pan (washer) 3x6DB Screw, cup S 3x6 Taptite, cup B 3x8
Q'ty 2 2 2 2 4 4 2 2 2 4 1 1 6
Tightening torque (kgf·cm) 7 ±2 7 ±2 5 ±2 5 ±2 4 ±2 5 ±2 4 ±1 5 ±2 7 ±2 5 ±2 7 ±2 7 ±2 5 ±2
Bottom plate
IV 2
s Preparation Prior to proceeding to the disassembly procedure, (1) Unplug - the modular jack of the telephone line, - the modular jack of the curled cord (and remove the handset), - the BT modular jack adapter if mounted, and - the modular jack of an external telephone set if mounted. (Not shown below.) (2) Remove - the paper wire extension, - the paper support, - the document support, - the document ejection tray, and - the ribbon cartridge.
Ribbon cartridge Document support Paper support Handset and curled cord* Telephone line cord Paper wire extension
BT modular jack adapter (provided on the New Zealand version)
Document ejection tray
(* Not provided on the FAX1010)
s How to Access the Object Component · On the next page is a disassembly order flow which helps you access the object component. To remove the separation roller, for example, first find it on the flow and learn its number (I in this case). You need to remove parts numbered 1, :, B, C, D, E, F, G, and H so as to access the separation roller. Unless otherwise specified, the disassembled parts or components should be reassembled in the reverse order of removal.
·
IV 3
1 Recording paper cover ASSY Bottom plate 6 Paper feed roller ASSY 6 Paper feed sub chute Platen frame
ROM cover
2 26
1 9 3 Platen 5 Chute ASSY 7 Paper feed chute 7 Separation pad ASSY 7 Lock levers and their shaft Gears on the platen frame 4
1 Recording head * ASSY
10
Control panel ASSY
s Disassembly Order Flow
11
Panel rear cover - ADF parts - Pressure rollers - Anti-static brush Control panel - Control panel PCB - FPC key - LCD - Microphone *5
12 8 Paper ejection roller
*3 - Sensor PCB - Paper-edge sensor actuator - Paper ejection sensor actuator
Inner cover
IV 4
16 Speaker 16 Battery 17 Document front sensor actuator
13 White pressure roller
14
2 Handset mount* * Side cover **
13
CIS unit
15
Side cover L
15
Side cover R
*5
27
4 Main PCB, NCU * PCB and modular PCB
28 Power supply PCB
18 20 Document ejection roller
Main frame
19 Separation roller and its support 20 CIS leaf spring Friction torque transmission ASSY, related gears and slip gear 40 Ribbon bushings 24
19
Document rear sensor actuator
21
Motor
22 25
Solenoid
*1 On the recording head are the ribbon sensor and its actuator. *2 On the hook switch PCB is the hook switch sensor. *3 On the sensor PCB are the paper-edge sensor and paper ejection
sensor.
23
Drive gears
*4 On the main PCB are the document front and rear sensors.
On the modular PCB is the cover sensor.
*5 Provided on the FAX1570MC/1030/MFC1870MC/1970MC.
* For models except the FAX1010 **For the FAX1010
1.1
Recording Head ASSY
(1) Push the open button and fully open the recording paper cover ASSY.
Open button
Recording paper cover ASSY
(2)
As shown below, insert the tip of a flat screwdriver into the square hole and release the hook "x" of the ROM cover, lift up the ROM cover slightly, and then release the hook "y" to take out the ROM cover.
ROM cover
ROM cover Flat screwdriver Flat screwdriver
Hook "X"
Hook "Y"
IV 5
(3) (4)
Remove the two screws from the recording head ASSY. Disconnect the relay connector of the head-power harness. NOTE: To disconnect the relay connector, push the lock of the relay connector to release.
(5) (6)
Disconnect the main-head harness from the main PCB. Lift up the recording head ASSY.
Head-power harness
Lock of relay connector
Recording head ASSY
Main-head harness Head-power harness
FAX1170/1270/1010/1020/MFC1770
Main-head harness
P8
FAX1570MC/1030/MFC1870MC/1970MC
(NCU connector)
P10 P11 P5
(NCU connector)
Main-head harness
P1 P2
P2
P9 P4 P5 P7
P13
P3
P14
P12
(Modular PCB connector)
P15
P1
P10
P6
P3 P4
(Modular PCB connector)
Main PCB
P12
P11
P9
Main PCB (Front)
(Front)
IV 6
(7)
To disassemble the recording head ASSY, follow the steps below. 1) Remove the head protection plate by unhooking the two latches. 2) Turn the recording head ASSY upside down and release the head-power harness from the adhesive tape. 3) Place the recording head ASSY rightside up. 4) Push down both ends of the recording head and move it to t