Brother MFC-970MC user manual

User manual for the device Brother MFC-970MC

Device: Brother MFC-970MC
Size: 4,66 MB
Date of adding : 2014-01-20 12:35:53
Number of pages: 218
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Brother MFC-970MC user manual
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Summaries

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Abstracts of contents
Summary of the content on the page No. 1

-925/MFC970MC
MFC
FAX-910/FAX-920/FAX-921/FAX-930/FAX-931
FAX750/FAX770/FAX870MC MODEL:
SERVICE MANUAL
FACSIMILE EQUIPMENT

Summary of the content on the page No. 2

© 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. All rights reserved. Copyright Brother 1998

Summary of the content on the page No. 3

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 lubrication--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 condit

Summary of the content on the page No. 4

CHAPTER I . GENERAL DESCRIPTION

Summary of the content on the page No. 5

EQUIPMENT OUTLIN E . I -1 1 Weigh t . I -1 2 Component s . I -1 S . I -2 ................................ ................................ ................................ .... SPECIFICATION 2. ................................ ................................ ................................ ..... 1. ................................ ................................ .... External Appearance and 1. ................................ ................................ ........................... 1. C

Summary of the content on the page No. 6

1. EQUIPMENT OUTLINE The figure below shows the equipment appearance and approximate dimensions. Weight: Approx. 4 kg (8.82 lbs.) In package Approx. 6 kg (13.23 lbs.) Components The equipment consists of the following major components: I 1 - 1.2 Machine proper (excluding a ribbon cartridge) External Appearance and Weight 1.1

Summary of the content on the page No. 7

2. SPECIFICATIONS Model Name Engine Thermal transfer Thermal transfer Color Black (1395) White (1397) Transmission Speed (sec) 15 15 Modem Speed (bps) 9600 9600 Group Compatibility Input/Output Width 8.5"/8.5" 8.5"/8.5" ADF (pages) 10 10 Recording Paper Loadable 100 sheets 100 sheets Ribbon Life (Letter-size print) 250 pages (77 m) 250 pages (77 m) Starter Ribbon Life (Letter-size print) 100 pages (30 m) 100 pages (30 m) LCD Size On-Screen Programming Super Fine Smoothing Gray Scale (levels) 64

Summary of the content on the page No. 8

Model Name FAX870MC MFC970MC Engine Thermal transfer Thermal transfer Color White (1397) White (1138) Transmission Speed (sec) 9 9 Modem Speed (bps) 14,400 14,400 Group Compatibility Input/Output Width 8.5"/8.5" 8.5"/8.5" ADF (pages) 10 10 Recording Paper Loadable 100 sheets 100 sheets Ribbon Life (Letter-size print) 250 pages (77 m) 250 pages (77 m) Starter Ribbon Life (Letter-size print) 100 pages (30 m) 100 pages (30 m) LCD Size On-Screen Programming Super Fine Smoothing Gray Scale (levels) 6

Summary of the content on the page No. 9

Model Name FAX-920/921 Engine Thermal Transfer Thermal Transfer Color Black(1395) Black(1395)/White(1397/1138) Transmission Speed (sec) 15 15 Modem Speed (bps) 9600 9600 Group Compatibility Input/Output Width 8.5"/8.5" 8.5"/8.5" ADF (pages) 10 10 Recording Paper Loadable 100 sheets 100 sheets Ribbon Life (A4-size print) 235 pages 235 pages Starter Ribbon Life (A4-size print) 90 pages (30 m) 90 pages (30 m) LCD Size 16 X 1 16 X 1 On-Screen Programming Super Fine Smoothing Gray Scale (lev

Summary of the content on the page No. 10

Model Name FAX-930/931 MFC-925 Engine Thermal Transfer Thermal Transfer Color Black(1395)/White(1397/1138) White(1138) Transmission Speed (sec) 9 15 Modem Speed (bps) 14,400 9600 Group Compatibility Input/Output Width 8.5"/8.5" 8.5"/8.5" ADF (pages) 10 10 Recording Paper Loadable 100 sheets 100 sheets Ribbon Life (A4-size print) 235 pages 235 pages Starter Ribbon Life (A4-size print) 90 pages (30 m) 90 pages (30 m) LCD Size On-Screen Programming Super Fine Smoothing Gray Scale (levels)

Summary of the content on the page No. 11

CHAPTER . INSTALLATION II

Summary of the content on the page No. 12

CHAPTER . THEORY OF OPERATION III

Summary of the content on the page No. 13

W . -1 S . -2 2.1 Transmitting Mechanism (Feeding and scanning documents ) . III -2 2.1.1 Automatic document feeder (ADF ) . III -2 r . III -3 . III -4 2.3 Power Transmission Mechanis m . III -5 n . III -5 m . III -6 2.3.3 Power transmission for four operation mode s . III -7 e . III -14 s . III -16 CONTROL ELECTRONIC S . -19 n . III -19 B . III -20 B . III -22 B . III -24 B . III -25 ................................ ................................ ........................... 3.5 P

Summary of the content on the page No. 14

1. OVERVIEW * Not provided on the FAX-910. I II 1 -

Summary of the content on the page No. 15

2. MECHANISMS The facsimile equipment is classified into the following mechanisms: n Transmitting Mechanism g documents n Receiving Mechanism n Power Transmission Mechanism n Sensors and Actuators 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.) r source, refer to Section 2.3.

Summary of the content on the page No. 16

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 document pressure bar and the cover glass, it is scanned. I II 3 - Scanner 2.1.2

Summary of the content on the page No. 17

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.) 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 The control electronics de

Summary of the content on the page No. 18

Power Trans mission 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 ems, refer to Subsection 2.3.2. Structure of the gear train All of the motor and gears are located at the left side of the equipment. As illustrated in the figure below (On the ou

Summary of the content on the page No. 19

This section describes the planetary gear system of sun gear 24/90 ("B"). It consists of sun gear 3 If the motor rotates, sun gear 24/90 rotates so that the rotational torque is transmitted to the engagement between the sun gear and planet gears 34. 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 sun gear 24/90. If the planet gear(s) becomes engaged with any other g

Summary of the content on the page No. 20

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. I II 7 - Motor rotation direction Solenoid ON/OFF state 2.3.3


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