Oki T400 User manual

Page 1
DISPENSER KIT COMPONENTS
(USED ON DIRECT THERMAL AND
THERMAL TRANSFER UNITS)
STEP PROCEDURE
1. Switch the printer OFF and disconnect the power cord.
2. Raise the top cover and print head assembly.
3. Remove the front door panel.
4. Raise the tear bar to the upright position to unlock the Platen Roller
ssembly.
Refer to the illustrations on the following pages.
5. Gently lift the right side of the platen from the support yoke, then
maneuver the geared left side to free from the opposite support yoke.
6. Note the position of the components. The new Dispenser Plate will
replace the existing Tear Bar on the Platen Roller ssembly.
Detach "C" rings from both ends of the platen and slide off the gear and
bearings. Remove the existing tear bar.
7. Install the dispenser plate in the same location as was the tear bar.
Replace bearings and gear and reattach "C" rings.
8. Install the altered platen assembly back into the printer.
TEXT CONTINUED ON PAGE 4
DISPENSER
KIT
DISPENSER
PLATE
GUIDE SHEET
Direct Thermal Unit: For Thermal Transfer Unit see page 6
Installing the Dispenser Kit

Page 2
Installing the Dispenser Kit
LEFT END OF PLATEN
IN SUPPORT YOKE
RIGHT END OF PLATEN
IN SUPPORT YOKE
GENTLY LIFT PLATEN FROM THE
RIGHT SIDE OF THE SUPPORT
FRAME AND GEARS ON THE LEFT
Direct Thermal Unit

Page 3
Installing the Dispenser Kit
REMOVE BEARINGS, GEAR
AND "C" RINGS
INSTALL DISPENSER PLATE AND
REPLACE BEARINGS, GEAR AND
"C" RINGS
INSTALL DISPENSER
PLATE AFTER
REMOVING EXISTING
TEAR BAR
REMOVE "C" RINGS
BOTH ENDS
Direct Thermal Unit

Page 4
Installing the Dispenser Kit
LINE UP EDGE OF GUIDE
SHEET AND NOTCH
PRESS DOWN TO ATTACH
TO FRONT DOOR PANEL
PEEL BACKING
PAPER FROM GUIDE
SHEET
STEP PROCEDURE
9. Remove the backing paper from the Guide Sheet. Line up one side of
the Guide Sheet (match notch on Guide Sheet with notch on Front Door
Panel). Press down firmly to attach.
10. ttach connector from the Dispenser Kit to CN13 on the printer as
shown.
11. Position the Dispenser Kit with the printer so that the locating pins of
the printer line up with the holes on the Dispenser Kit.
12. Secure with two screws provided.
13. Set the dip switch settings to the dispenser mode.
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Direct Thermal Unit

Page 5
Installing the Dispenser Kit
PLUG CONNECTOR
INTO CN13
RIGHT SIDE
LOCATING PIN
SECURE DISPENSER
WITH (2) SCREWS
LINE UP HOLES WITH
LOCATING PINS
Direct Thermal Unit

Page 6
Installing the Dispenser Kit
STEP PROCEDURE
The Ribbon ssembly on the Thermal Transfer Unit has a gear that meshes
with the gear on the Platen Roller ssembly and must be disengaged to
allow the Platen Roller ssembly to be removed.
1. Switch the printer OFF and disconnect the power cord.
2. Raise the top cover and print head assembly.
3. Remove the front door panel.
4. Refer to the illustrations on the following pages.
Remove screw to detach lever from Print Head and Ribbon ssembly.
5. Gently lift tab on the bracket either by inserting a flat blade screwdriver
under the tab or other means and pulling outward on the bracket to
disengage positioning pin on the back side of the lever. Positioning pin fits
into hole on the print head.
6. Grab the Ribbon ssembly and slide backward to disengage the opposite
end from the print head. Note that the ribbon assembly has a connector
which is connected to a cable from the printer. Be sure to reconnect if it
becomes disengaged.
7. Raise the tear bar to the upright position to unlock the Platen Roller
ssembly.
8. Gently lift the right side of the platen from the support yoke, then
maneuver the geared left side to free from the opposite support yoke.
9. Note the position of the components. The new Dispenser Plate will replace
the existing Tear Bar on the Platen Roller ssembly.
Detach "C" rings from both ends of the platen and slide off the gear and
bearings. Remove the existing tear bar.
10. Install the dispenser plate in the same location as the tear bar. Replace
bearings and gear and reattach "C" rings.
11. Install the altered platen assembly back into the printer. Reinstall the
Ribbon ssembly by reversing Steps 6-4.
Thermal Transfer Unit:
TEXT CONTINUED ON PAGE 12

Page 7
Installing the Dispenser Kit
Thermal Transfer Unit:
REMOVE SCREW TO
DETACH LEVER FROM
PRINT HEAD AND RIBBON
ASSEMBLY
INSERT A FLAT BLADE
SCREWDRIVER UNDER THIS
BRACKET (OR BY OTHER MEANS)
TO DISENGAGE THIS END OF THE
RIBBON ASSEMBLY FROM THE
PRINT HEAD
POSITIONING PIN ON
BACKSIDE OF BRACKET
FITS INTO HOLE ON PRINT
HEAD
PULL BRACKET
FORWARD TO RELEASE
FLAT BLADE
SCREWDRIVER

Page 8
Installing the Dispenser Kit
For Thermal Transfer Unit:
SLIDE THE RIBBON ASSEMBLY
BACKWARD TO DISENGAGE THIS
END FROM THE PRINT HEAD
POSITIONING PIN ON THE UNDERSIDE
OF THE RIBBON ASSEMBLY FITS INTO
HOLE ON PRINT HEAD
RECONNECT IF
DISENGAGED

Page 9
LEFT END OF PLATEN
IN SUPPORT YOKE
RIGHT END OF PLATEN
IN SUPPORT YOKE
GENTLY LIFT PLATEN FROM THE
RIGHT SIDE OF THE SUPPORT
FRAME AND GEARS ON THE LEFT
Installing the Dispenser Kit
For Thermal Transfer Unit:

Page 10
REMOVE BEARINGS, GEAR
AND "C" RINGS
INSTALL DISPENSER PLATE AND
REPLACE BEARINGS, GEAR AND
"C" RINGS
INSTALL DISPENSER
PLATE AFTER
REMOVING EXISTING
TEAR BAR
REMOVE "C" RINGS
BOTH ENDS
Installing the Dispenser Kit
For Thermal Transfer Unit:

Page 11
Installing the Dispenser Kit
For Thermal Transfer Unit:
PLUG CONNECTOR
INTO CN13
RIGHT SIDE
LOCATING PIN
SECURE DISPENSER
WITH (2) SCREWS
LINE UP HOLES WITH
LOCATING PINS

Page 12
STEP PROCEDURE
12. Remove the backing paper from the Guide Sheet. Line up one side of the
Guide Sheet (match notch on Guide Sheet with notch on Front Door
Panel). Press down firmly to attach.
13. ttach connector from the Dispenser Kit to CN13 on the printer as shown.
14. Position the Dispenser Kit with the printer so that the locating pins of the
printer line up with the holes on the Dispenser Kit.
15. Secure with two screws provided.
16. Set the dip switch settings to the dispenser mode.
Installing the Dispenser Kit
Thermal Transfer Unit:
LINE UP EDGE OF GUIDE
SHEET AND NOTCH
PRESS DOWN TO ATTACH
TO FRONT DOOR PANEL
PEEL BACKING
PAPER FROM GUIDE
SHEET
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