Epson 850N - Manual (Page 132)

Troubleshooting
7-4
Using Hex Dump Mode
You can use the printer’s hex dump mode to identify problems
if you know how to interpret hex code. Or, you can fax the hex
printout to a technical support representative. Follow these
steps:
1. Make sure the printer is turned off and has paper loaded
in it.
2. Open the cover.
3. Hold down the E load/eject button and the X color
cleaning button and press the Ppower button. The printer
prints Hex Dump Mode at the top of a page and then
stops.
4. Print one or more pages from an application as usual. The
printer prints the exact code it receives in hexadecimal
format.
5. Turn off the printer to exit hex dump mode.
Improving Print Quality
If you find that your print quality has been declining, you can
often improve it by doing one or more of the following:
◗ Clean the print heads following the instructions in
Chapter 5.
◗ Use higher quality paper appropriate for your print job.
(See Chapter 2 for a list of EPSON papers.)
◗ Match the Media Type in the printer software to the type
of paper you loaded in the printer. Then the printer
software can automatically select other settings for the best
quality. (See Chapter 1 for details.)
◗ Turn off High Speed mode in the More Settings dialog
box, as described in Chapter 3.
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