Program Setting Method; Program Structure - Brother T-8421D Instruction Manual

Program setting method

It is recommended that you register patterns that are sewn frequently as programs. After programs have been
registered, you can retrieve the desired sewing patterns simply by selecting a program number, which eliminates
the need to set the pattern each time.
• Settings such as sewing pattern, number of stitches, sewing speed and slow start can be made separately for
each program number.
• Up to nine programs from P1 to P9 can be registered.
At the time of shipment from the factory, P1 to P8 have normal sewing programs registered, and P9 has a 4-step
fixed stitch sewing (name label sewing) program registered.

Program structure

A single program consists of start backtack parameters, main sewing parameters, end backtack parameters and
individual functions for that program.
Stitch type (overall view)
Programs P1 to P9
Start backtack
Start backtack sewing
parameters
Start backtack sewing parameters
Start backtack sewing pattern
Sewing speed
No. of stitches A
Main sewing
Main sewing parameters
(step 1)
Main sewing parameters
(step 2)
Main sewing parameters
(step 3)
......
Main sewing parameters
(step 20)
Setting value
220 to 3000 sti/min
1 to 19 stitches
End backtack
End backtack sewing
parameters
Program individual
functions
31