Setting the Serial Interface Parameters; MFC 4550/6550MC/7550MC- Page 200

Brother 7550MC User Manual

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Table of Contents

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OPTIONAL ACCESSORIES

15-3

MFC 4550/6550MC/7550MC
OP-US-5.0

Selecting the RS-422A (Apple) or RS-232C (IBM) Serial Interface

1. Make 

sure 

the 

MFC 

is 

in 

the 

offline 

mode.

2. Select 

the 

serial 

interface 

port 

matches 

your 

computer:

• For 

Apple 

Macintosh 

computers, 

select 

the 

RS-422A 

(Apple) 

port 

by 

keeping 

the 

slide

switch 

to 

the 

left 

(factory 

setting 

is 

RS-422A).

• For 

IBM 

compatible 

computers 

with 

Windows® 

or 

PCs 

that 

operate 

with 

DOS, 

move 

the

slide 

switch 

to 

the 

right 

(RS-232C).

RS-422A
 (Apple)

RS-232C
   (IBM)

Slide
switch

Setting the Serial Interface Parameters
(Only for MFC 6550MC/7550MC)

Set the parameters to match your computer as follows:

• Never change the RS-422A parameters for Apple Macintosh computers. The RS-422A

parameters have been set correctly at the factory for Apple Macintosh computers, so you

do not have to change the setting. You may skip this section. If you change parameters

for the RS-232C serial interface and then switch back to RS-422A for Apple Macintosh

computers, be sure to restore the parameters to the factory setting.

• Set the RS-232C parameters to match your IBM compatible computer. You can set serial

settings in several different places, within your DOS application, within the Windows®

Printer Icon (for Windows® application software only), or within your AUTOEXEC.BAT

file using MODE commands. For information on setting serial interface parameters, see

the user’s guide for your computer or software.

Detailed Information for Brother 7550MC User Manual

Lists of information found in Brother 7550MC User Manual - Page 200

  • 5.0 Selecting the RS-422A (Apple) or RS-232C (IBM) Serial Interface 1.
  • 2. Select the serial interface port matches your computer: • For Apple Macintosh computers, select the RS-422A (Apple) port by keeping the slide switch to the left (factory setting is RS-422A).
  • For Apple Macintosh computers, select the RS-422A (Apple) port by keeping the slide switch to the left (factory setting is RS-422A).
  • For IBM compatible computers with Windows® or PCs that operate with DOS, move the slide switch to the right (RS-232C).
  • Never change the RS-422A parameters for Apple Macintosh computers.
  • Set the RS-232C parameters to match your IBM compatible computer.

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