TM

a)When DIP SW4-1 through 4-4 are all ON (DC1/DC3 invalid mode) DC1 and DC3 codes are invalid.

b)When DIP SW4-1 through 4-4 are OFF (DC1/DC3 valid mode) DC1: Select

DC3: Deselect

When the printer receives the DC3 code, it throws away data until it receives the DC1 code. (all the data between the DC3 and DC1 code)

DTR is always ready.

c)Other settings (addressable mode) DC1 n: selects n (address)

DC3: Deselect

When the printer receives the DC3 code, it throws away data until it receives the DC1 n code (with the n matching the printer’s own address).

DTR is always ready.

Note : DIP sw1-4 select the select/deselect state for the printer when the power is first switched on.

CHAP. 4

TECHN

Parallel Interface Switch

DIP-SW1

Switch

Function

ON

OFF

1-1

 

 

 

1-2

Not used

 

 

1-3

Control code CR

Invalid

Valid

1-4

Not used

 

 

1-5

Setting the paper feed length

1/6 - inch

1/8 - inch

1-6

Setting the buffer size

4 K-bytes

256 bytes

1-7

Not used

 

 

1-8

Paper out detection function

Valid

Invalid

4 - 7

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Image 35
POSIFLEX Business Machines PP3000 manual Parallel Interface Switch, DIP-SW1