MPI Microline 320 Handbuch

Chapter 1
Printer Unpacking & Setup
Choose a sturdy table, desk or printer stand to place your printer on when you remove it from
the carton. Remove the styrofoam sides be sure to save all packing materials in case you need
to ship the printer again and check the box for these contents:
1) ML320/321 printer
2) Paper separator
3) Power cord
4) Platen knob
5) Ribbon cartridge
Note: Interface cable and paper are sold separately.
If any of these items is missing or damaged, see your dealer for a replacement.
ML 320/321 ( 96-02-01 )
Mantenimiento Periféricos Informáticos SL C/Canteras, 22 28860 Paracuellos de Jarama Tel: 00 34 917481604 WEB: https://mpi.com.es

Setup Preliminaries
Preliminaries
Don't plug the printer in until its set up and ready to operate.
If there is clear protective film on the access cover, remove the film. Open the access cover
and remove the shipping retainer (1). Be sure to save it with the other packing materials in
case you ship the printer.
ML 320/321 ( 96-02-01 )
Mantenimiento Periféricos Informáticos SL C/Canteras, 22 28860 Paracuellos de Jarama Tel: 00 34 917481604 WEB: https://mpi.com.es

Install The Paper Separator and Platen Knob
Install The Paper Separator and Platen Knob
Open the rear cover of the printer (2). Holding the legs closed against the paper separator,
place the tab on one side of the separator over the stud on the side of the rear cover (3).
Pull gently on the other tab to slide it over the stud on the other side of the rear cover. Then
close the rear cover. Insert the platen knob on the right side of the printer (4). Match the
flatside of the knob to the flat side of the platen shaft.
ML 320/321 ( 96-02-01 )
Mantenimiento Periféricos Informáticos SL C/Canteras, 22 28860 Paracuellos de Jarama Tel: 00 34 917481604 WEB: https://mpi.com.es

Connect to Power and Computer
Connect to Power and Computer
Make sure the printer and computer are both OFF. Plug the power cord into the back of the
printer(5). Plug the other end into a grounded outlet. Plug the interface cable into the parallel
port on the back of your printer(6) Fasten the wire clips to the cable.
- Make sure the outlet is grounded. Do not use an adapter to defeat the grounding.
- These instructions are for the standard parallel interface. If you have the optional serial
interface, see the instructions provided with it. Interface cables are sold separately.
ML 320/321 ( 96-02-01 )
Mantenimiento Periféricos Informáticos SL C/Canteras, 22 28860 Paracuellos de Jarama Tel: 00 34 917481604 WEB: https://mpi.com.es

Install/Replace The Ribbon Cartridge
Install/Replace The Ribbon Cartridge
The printhead can get very hot during extended periods of printing be sure to let it cool off
before you touch it. Be sure the power is off before you move the printhead.
Open the access cover. Position the printhead between the bail rollers (7). Make sure the
bail is closed (bail lever toward back of printer).
Install/Replace the Ribbon Cartridge
ÎBe sure to use only ribbons specifically for MICROLINE 320/321 or MICROLINE 100 Series
printers. Ribbon cartridges for ML390/391 printers look similar, but they will not fit in the ML320/321.
For best result use genuine OKIDATA ribbons, part number 52102001.
If you're replacing the ribbon cartridge, swing the front of the cartridge up off the printhead, then
lift the cartridge out and discard it. Hold the new ribbon cartridge with the knob facing up and the
flat end toward the front of the printer. Place the flat end into the ribbon plate(8) then lower the
front of the cartridge over the printhead until it snaps into place (9). Turn the knob in the direction
of the arrow to take up the slack in the ribbon.
ML 320/321 ( 96-02-01 )
Mantenimiento Periféricos Informáticos SL C/Canteras, 22 28860 Paracuellos de Jarama Tel: 00 34 917481604 WEB: https://mpi.com.es

Set the Headgap
Set the Headgap
The headgap lever (10) by the side of the cartridge adjusts for different paper thicknesses.
Set it to:1 for one- or two-part forms,
2 for three- or four-part forms,
3 for envelopes and extra-thick paper
ML 320/321 ( 96-02-01 )
Mantenimiento Periféricos Informáticos SL C/Canteras, 22 28860 Paracuellos de Jarama Tel: 00 34 917481604 WEB: https://mpi.com.es

Chapter 2
Loading Rear-Feed, Continuous Forms
Loading Rear-Feed, Continuous Forms
- Do not position the left edge of the paper more than 1/2 from the end of the platen. The
paper must cover the groove in the left side of the platen; if it doesnt, the printer will signal
a paper out alarm. There are reference marks on the printer to show the recommended left
edge position for the two most common paper sizes.
Make sure the paper lever is forward, and open the access cover and rear cover to expose the
tractors (1). Pull the lock levers (2) forward and slide the left tractor into position for the paper
size you're using. Slide the right tractor to fit the paper width. Push the levers back to lock them.
Loading Rear-Feed, Continuous Forms
- Check the Addendum ( ) for details on paper specifications.
Open the tractor covers (3).
Pull the paper through the opening between the printer and the rear cover and
place the first two sprocket holes on each side of the page over the pins (4).
ML 320/321 ( 96-02-01 )
Mantenimiento Periféricos Informáticos SL C/Canteras, 22 28860 Paracuellos de Jarama Tel: 00 34 917481604 WEB: https://mpi.com.es

Close the rear cover (make sure the paper separator is flat on the printer), open the guide wire,
and close the access cover (5).
Turn the printer on. The printhead will move and the control panel will light up. The ALARM light
will also come on. Pull the bail lever forward (6). The paper will automatically feed into the printer
and the ALARM light will go out. If paper doesn't feed, check to make sure that the paper lever is
in the forward position.
- Do not use the Form Feed button to load paper.
Push the bail lever back to close the bail (8).
Adjust the top of form (see page 13( )), then press the SEL button ( the SEL light will go on)
and you're ready to print.
ML 320/321 ( 96-02-01 )
Mantenimiento Periféricos Informáticos SL C/Canteras, 22 28860 Paracuellos de Jarama Tel: 00 34 917481604 WEB: https://mpi.com.es

Loading Single Sheets
Loading Single Sheets
Note: If you already have continuous form paper in the printer, tear off any printed pages,
then press the PARK button to back it out of the paper path. The ALARM light will go on
and the SEL light will go off.
Push the paper lever back (1).
Push the guide wire back (2).
Raise the separator to its upright position (3).
Set a sheet of paper on the separator and adjust the guides so that they're barely
touching the edges of the paper. Pull the bail lever forward. The paper will
automatically feed into the printer. (Theres a reference mark on the separator for
the left paper edge.)
Push the bail back (4) and adjust the top of form.
ML 320/321 ( 96-02-01 )
Mantenimiento Periféricos Informáticos SL C/Canteras, 22 28860 Paracuellos de Jarama Tel: 00 34 917481604 WEB: https://mpi.com.es
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