Epson AP-4000, Technical Manual

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GENERAL DESCRIPTION
REV.-A
1.6 SHEET LOADING AND SHEET EJECTION
The release lever enables disengaging of the push tractor unit drive mechanism. The printer therefore pro-
vides some improved paper-handling functions through combination of the release lever and LOAD/EJECT
control panel switch.
Cut-Sheet Loading and Ejection
To load a sheet of paper, position the paper-release lever back, place the sheet along the paper guide, and
press the LOAD/EJECT switch. This loads the paper to the top-of-form position. Pressing the LOAD/EJECT
switch after the paper has been loaded will cause the paper to be ejected.
Continuous-Paper Loading and Ejection (Back-Out)
To load fanfold paper, move the paper-release lever forward, and insert the paper into the push tractor. Pressing
the LOAD/EJECT switch will then cause paper to be automatically loaded to the top-of-form position. Press-
ing the LOAD/EJECT switch after the fanfold paper has been loaded causes the printer to eject the paper
backward from the push tractor. To back out several pages, press the LOAD/EJECT switch several times
(reverse feed is performed on a page-by-page basis).
The MULTI-PART LED will flash only when the paper is loaded and the ON LINE switch pressed. This in-
dicates that the printer has entered “top-of-form adjust” mode, and that the user may adjust the top-of-form
position, as well as the loading positions for subsequent forms. Adjustment is made using the FORM FEED
button, which will increment the paper forward, and the LINE FEED switch, which will increment the paper
in reverse. (The minimum feed amount is 1/,80 inch.) When the cut-sheet feeder is used, the adjusted position
for the top of form will be lost after the printer is reinitialized, and the top of form will be reset to the default
value. When continuous paper is used, however, printer memory maintains the adjusted top-of-form position
even after printer initialization.
1.7 TEAR-OFF FUNCTION
If the tear-off function is enabled by making the appropriate DIP switch setting, it operates when the release
lever is set to the tractor position. In this case, if the input data buffer is empty and the printer is on line,
the paper is automatically fed to the tear-off position, and the MULTI-PART LED flashes to indicate that the
FORM FEED and LINE FEED switches are now available to perform micro-adjustment. The user may then
adjust the paper to the desired tear-off position. This position becomes the new tear-off position default, and
will remain valid even if the printer is reset and reinitialized, and regardless of whether the main power has
been interrupted. When new data is input to the printer, the paper is automatically returned to its original
position, and printing then starts. Paper that was advanced to the tear-off position will also be returned to
its original position if the ON LINE switch is pressed (switching the printer from on line to off line).
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LQ-510