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C O N F I D E N T I A L

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Bit 2: This bit becomes “On” when home position detecting error or main motor lock-up error is occurs.

Bit 7: When serial interface model and 7 bit data word length selected, this bit can not be transferred to the host. Bit 7 is different from the ESC/POS Specification.

n = 4: Paper roll sensor status

Bit

Off/On

Hex

Decimal

Function

 

 

 

 

 

0

Off

00

0

Not used. Fixed to Off.

 

 

 

 

 

1

On

02

2

Not used. Fixed to On.

 

 

 

 

 

2

Off

00

0

Journal paper roll is not near end.

 

 

 

 

 

 

On

04

4

Journal paper roll near end is detected.

 

 

 

 

 

3

Off

00

0

Receipt paper roll is not near end.

 

 

 

 

 

 

On

08

8

Receipt paper roll near end is detected.

 

 

 

 

 

4

On

10

16

Not used. Fixed to On.

 

 

 

 

 

5

Off

00

0

Journal mark sensor does not detect black mark.

 

 

 

 

 

 

On

20

32

Journal mark sensor is detecting black mark.

 

 

 

 

 

6

Off

00

0

Receipt mark sensor does not detect black mark.

 

 

 

 

 

 

On

40

64

Receipt mark sensor is detecting black mark.

 

 

 

 

 

7

Off

00

0

Not used. Fixed to Off.

 

 

 

 

 

Bits 5 and 6 are different from the ESC/POS Specification.

RP-U420

Status commands DLE EOT

Ver. 1.0 p. 71

Page 71
Image 71
Epson RP-U420 manual More