OKI 791 User Manual

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6
Installation
3. Holding ribbon cartridge with knob fac-
ing up and ribbon sheild facing platen,
fit grooves on either side at back end of
cartridge over pins on ribbon plate.
4. Lower front of cartridge over printhead
until it snaps into place, then turn knob
in direction of arrow (clockwise) to take
up ribbon slack.
5. The headgap lever by the side of cartridge
adjusts for different paper thicknesses.
Set  it  for  the  number  of  sheets  in  the
forms you’re using from 1 to 4; use set-
ting 5 for envelopes or extra-thick pa-
per.  Adjust the setting up or down for
the best print quality.
Note:  When  the  setting  is  set  at  2~5,  the
printer automatically slows down for better
print quality with thicker multipart forms.
Important!
  Be  sure  to  use  only  ribbons
specifically for use with MICROLINE 790
series.
For best results, use genuine OKI ribbons.
Making Connections
Connection with Computer
There instructions are for the standard parallel interface and USB interface.  Instructions
for installation/connection of a serial interface are included with the serial interface ac-
cessory. For more information on the serial interface accessory, see Chapter 5.
Ribbon
shield
Knob
Setting
Headgap lever
position
Number of 
sheets
1
2
3
4
5
1
2
3
4
5
1
2
3
4
envelopes or 
extra-thick paper
M
1
2
3
Knob
Headgap lever
Printhead