scx 3405F Image Error please reset printer

[iohan]

does not allow me to write anything.
need to change settings here? image

[вложение удалено администратором]

[iohan]

before solder jumpers not display this error (unable to oper COM8. PLEASE check your port settings). should or should not soldered jumper?

[вложение удалено администратором]

[iohan]

test converter: write any letter (symbol) from keyboard. terminal no answer
short, connect TX fnd RX pin on converter
again write any symbol from keyboard - terminal must be answer same symbol.

it work ?

I've been trying, and you can see in the picture, which appeared
. I typed TESTTEST, and wrote these symbols

[вложение удалено администратором]

[apopovv]

Use short wire (10-15 cm) from converter to printer
Try 38400 or 56700 speed.

[iohan]

I shortened the wires (5 cm) and I weld again.
I tried 38400 and 57600 speed but same error (unable to open COM8. Please check your port settings
. please help.
  this printer is killing me

[apopovv]

You connected to printer 3 wire ?

- RX
- TX
- GND

?

[Nikita]

I shortened the wires (5 cm) and I weld again.
I tried 38400 and 57600 speed but same error (unable to open COM8. Please check your port settings
. please help.
  this printer is killing me

если не можешь открыть порт то сначала включи принтер потом нажми вызов

[iohan]

You connected to printer 3 wire ?

- RX
- TX
- GND

?

I tried with and without GND, but still nothing appears on hyperterminal. in this picture you can see the wires on the board. .


sometimes connect without this error ((unable to open COM8)  but when I try to write in hyperterminal, error appears "USB Not Recognized".

Now I have some questions
- The printer must be connected to power (power cable)
- USB must be connected to the computer?
- Must be connected all 3 Tx, Rx, Gnd

Do not have a video explaining debug?

[iohan]

[/quote]если не можешь открыть порт то сначала включи принтер потом нажми вызов
[/quote]
With the printer on,
appears connected, but I can not write anything in hyperterminal screen

[iohan]

can be a problem when running hyperterminal in win7?

[iohan]

I have returned. After a day full of nerves I solved the problem with  ”Image Error please reset printer”

What I noticed after all tests:
Usb-ttl converter must necessarily connected directly into the USB port, no USB extension.
- Error (unable to oper COM8. PLEASE check your port settings) has been removed, running hyperterminal in windows XP.
In windows7 did not work, did not allow writing in hyperterminal.

- Correct position solder wire is Rx Tx GND, + jumper on the back of the motherboard

  I go to sleep because my brain warmed
All the best!

[apopovv]

Congratulation!

You do it!