I changed wireless networks and the printer has gone offline. How do I get it back in ready mode? samsung color laser clx-3175

Log into the service menu Samsung CLX-3175 without a numeric keypad similar to the unit Samsung SCX-4623F/FN:
Consistent set of combinations of "MENU" - "COPY ID" - "LEFT" - "RIGHT" - "MENU" - "BACK" . Samsung CLX-3175XX/X with a numpad press: Menu, #1934, Menu
The unit switches to English, if you installed any other.
In the menu appears TECH MODE.
In Samsung CLX-3175 to enter the reset require a password 1934. The numbers by pressing "LEFT" - "RIGHT",
After each number press the "OK"

Good luck in the reset.
Have any questions, you here http://skit-ltd.narod.ru/

I'm going to assume that there's a letter next to the message on the display about the toner being out because I have a Samsung color laser printer and it gives the same message.
C = Cyan (Blue) M = Magenta (Red/Pink) Y = Yellow K= Black
Other than that, got to your printer control menu on your computer and find the status menu. It will tell you what's out.

The manual doesn't specifically state this but it appears that if the printer is connected to a wired LAN connection the wireless function will be disabled if the printer is set up in infrastructure mode. When I tried this the 'wireless' light turned off and I wasn't able to find the printer's WiFi SSID using a nearby netbook. If your goal, like mine, was to disable the printer's WiFi from transmitting to reduce extra WiFi noise then this seems to work. One of the wireless troubleshooting tips in the manual states to disconnect the wired connection before attempting to set up a wireless connection so it appears the two can't be used simultaneously. It seems odd that there's no specific "off" setting for wireless though. The printer will provide a WiFi connection when also connected to a wired LAN port if it is set up as part of an ad-hoc wireless network so make sure you set it to 'infrastructure' mode to disable WiFi.

Unfortunately, once you install a firmware upgrade it is permanent. Driver updates can be reversed but not firmware. That is why you should always have a definite reason for upgrading the firmware.

To Change Fax speed you must enter into Tech Mode:
Press: Menu # 1 9 3 4 OK Menu
Tech Mode / Tech Menu should now be shown on screen
Press: OK
DataSetup should now be show on screen
Press: OK
Right Arrow 4 times
Modem Speed should now be show on screen
Press: OK
Right Arrow to desired Speed
Press: OK
Press: back arrow 3 times to return to main screen

Log into the service menu Samsung CLX-3175 without a numeric keypad similar to the unit Samsung SCX-4623F/FN:
Consistent set of combinations of "MENU" - "COPY ID" - "LEFT" - "RIGHT" - "MENU" - "BACK"
The unit switches to English, if you installed any other.
In the menu appears TECH MODE.
To enter the reset require a password
1934. The numbers by pressing "LEFT" - "RIGHT",
After each number press the "OK"

Good luck in the reset.
Have any questions, you here http://skit-ltd.narod.ru/

yes
if u use wireless printer u receive n send document via that printer.

Takes CLP 310
To use Toner refill you need a chip that solder to the main board. search Ebay for reset chip for CLX-3175
run around $40.
Service Manual Free
http://hotfile.com/dl/28988134/55113fe/CLX-3170-3175.zip.html

Service Manual can be found here free!
http://hotfile.com/dl/28988134/55113fe/CLX-3170-3175.zip.html