What is hex dump mode

Probably the easiest way to turn off the Hex Dump mode would be to reset all printer settings. There should be a reset menu that will allow you to reset the printer to factory defaults. After which it should recognize the new ram and print normally.

A hex dump is a list of hexadecimal numbers (base 16 numbers) of probably the contents of the memory.
This Hex dump is generated when the computer comes across a computer problem and can help Microsoft determine the cause and fix if this is sent to Microsoft.

If using RS 232 serial communications, verify that host and printer settings match. Baud Rate, Parity,Stop Bits, 7or 8 bit word length. Example 9600,8,n,1

Or make sure it is not in hex dump mode.

Hi,

This feature allows experienced users to see exactly what data is
coming to the printer. This can be useful in finding software
problems. When you turn on the hex dump function, the printer
prints all commands and other data in hexadecimal format, along
with a guide section to help you find specific commands.
To use the hex dump feature, follow these steps:
1. After you make sure the printer is off, open the cover.
2. Hold down the FEED button while you turn on the printer.
3. Close the cover.
4. Run any software program that sends data to the printer. The
printer prints “Hexadecimal Dump” and then all the codes it
receives in a two-column format. The first column contains the
hexadecimal codes and the second column gives the ASCII
characters that correspond to the codes.
Hexadecimal Dump
1B 21 00 1B 26 02 40 40 . ! . . & . @ @
1B 25 01 1B 63 34 00 1B . % . . c4 . .
41 42 43 44 45 46 47 48 ABCDEFGH
❏ A period (.) is printed for each code that has no ASCII
equivalent.
❏ During the hex dump all commands except DLE EOT and
DLE ENQ are disabled.
5. Open the cover to set the printer off line, so that it will print the
last line.
6. Close the cover and turn off the printer or reset it to turn off the
hex dump mode.

PLEASE CHECK THE LINK TO GET THE ESC CODES:
http://www.mit.edu/~vona/MSim/vona/terminal/VT100_Escape_Codes.html

Hope this helps u ..............

I resolved the " Hex Dump Mode" problem
Step1: switch off power
Step2: press and hold Stop/Exit ( Red Color Key ) switch on power supply .......
now no " Hex Dump Mode" problem

Turn printer off. PRESS & HOLD PAUSE & FEED buttons after power goes out. While holding turn printer ON, count to 3 & let go. once printer does its checks press the MODE button 4 times to SAVE. the bottom 3 lights will flash 1 time. This should reset the entire printer including calibration, communications & everything to be like it just came out of the box.

First thing to try is a reset of the printer.
1) Turn printer off.
2) Hold down feed button whilst turning printer on.
3) Let go of the feed button as soon as it starts to flash and then wait.
4) Printer will measure out 4 labels then print out a Hex dump ending with a not to "Push Feed to Exit"
5) Push feed

Follow the above instructions, if you mess around tapping the feed button (not following the above) you can change the printer between line mode and page mode. To swap that back is another storey.
David

Hex dump mode is mostly used for trouble shooting of the printer. To exit the hex dump mode, enter the Diagnostics menu / Hex
Dump Mode and select ‘Disable’. Exit the menu, save changes and
return to the ‘READY’ mode.

Clean the paper sensor located at the centre of the mechanism .
Switch ON the printer While holding Feed key down, Printer will enter into self test mode, it will stop after printing self test label.
To take out priter from HEX DUMP mode press feed key for 3 seconds. now printer is in Normal working mode.
Try feeding labels, only one label should advance at a time.
This is the calibration procedure.

Here's the link; http://www.amazon.com/Brother-MFC9600-Flatbed-Laser-Multifunction/dp/B00004U4A0 Under "product details". Hope this helps :)