Epson 800 Interface timing

0Data transfer must be carried out by observing the ACKNLG or BUSY signal. Data transfer to this printer can be carried outonly after receipl of the ACKNLG signal or when the BUSY signal is LOW.

Interface timing

The figure below shows the timing for the parallel interface.

BUSY

ACKNLG

DATA
STROBE	Approx. 5~s
	Approx. 5~s

Approx. 5~s

A - 1 0 A p p e n d i x

Contents

Page Printer Parts Page For United States Users For Canadian Users Important Safety Instructions Where United States Users Can Get Help Tips for Printing on Single Sheets lntroduction Chapter 1 Setting Up Your Printer Chapter 2 Using Other Printer Functions Chapter 3 Mainfenunce and Troubleshooting Appendix Glossary Index Page How to Use This Manual Warnings, Cautions, and Notes Setting Up Your Printer About Your Ink Jet Printer A few precautions Choosing the right paper Unpacking the Printer Attaching the paper support Choosing a Place for the Printer Plugging in the Printer Installing the Ink Cartridge Page Page Page Page Testing the Printer Loading paper in the paper feeder Running the self test Connecting the Printer to Your Computer Page Setting Up Your Software Programs Tips for Using the Paper Feeder Using Other Printer Functions Loading Paper Manually Paper sizes Printing on single sheets Page Printing on envelopes Page Indicator lights Buttons Controlling the Page with Micro Feed Adjusting the loading position Adjusting the print position Selecting Character Fonts Scalable Fonts Condensed printing Using the Default-SettingsMode Default settings descriptions Character table Auto print direction Network interface mode Mixed text/graphics mode Changing the default settings ALT next want to change DATA, PAPER OUT the DATA Page Page Maintenance and Troubleshooting Replacing the Ink Cartridge Cleaning the Print Head Cleaning the Printer Transporting the Printer Troubleshooting Power s u p p ly Printing The PAUSE light is off but nothing prints Printed output is not as expected the contact hex Dots are missing in printed characters or graphics The printed image is light or faint The printed image is blurred The typestyles or characters set with your software do not print The font selected on the control panel does not print The wrong characters are printed Printing starts too high or too low on the page All the text prints on the same line Paper handling Page Page A-1 Technical Specifications Printer specifications Paper Page Mechanical Environmental Interface specifications Specifications Page Page Interface timing Initialization Default settings Command Summary Sending printer commands Using the command summary General operation Paper feeding Page format Print position motion Font selection Page font enhancement Spacing Character handling Page Bit image Graphics Character Tables Page PC865 (Norwegian) Page Page Page Page ( A command Glossary ASCII auto line feed auto bidirectional printing control code c p default double-heightprinting double-strikeprinting font hex dump initialization ink jet interface proportional printing R A M reset R O M self test Index Page Page Page Epson America, Inc