AT&T CAT PRINTER User manual

AT&T CAT
PRINTER

Unpacking
Do not plug the printer in just yet. We’ll tell you when you can.
1.
2.
3.
Lift the access cover and remove the clear smudge strips from the
front panel and cover.
Smudge strip
Smudge strip Access cover
Remove the shipping retainer that secures the print head during
shipment. Save it in case you ever need to ship the printer.

4.
5.
Insert the platen knob in the hole on the right side of the printer, lining
up the notch in the knob with the pin on the shaft.
Make sure the printer is turned off, then plug the printer end of the
power cord into the printer and the other end into a 3-hole grounded
outlet.
Setting the Internal Switches
With a serial interface there are three sets of switches, one on the
circuit board and the other two on the serial board.
Platen
knob
Before you take the switch cover off to reset any of these switches, read
the overview of their functions and the section entitled resetting switches.
The factory/required settings are indicated by bold text.

Switch Bank 2
Switches (2-1) through (2-3) control the baud rate.
Baud rate:
Switch Switch
Rate 2-12-2
19200
ON ON
9600
OFF ON
4800
ON OFF
2400
OFF OFF
1200
ON
ON
600
OFF ON
300
ON OFF
110
OFF OFF
Switch
2-3
ON
ON
ON
ON
OFF
OFF
OFF
OFF
2-4
2-5
2-6
2-7
2-8
DSR input signal:
ON: ACTIVE
OFF: INACTIVE
Buffer threshold:
ON: 32 bytes
OFF: 256 bytes
Busy signal timing:
ON: 200 ms (min.)
OFF: 1 second (min.)
DTR signal:
ON: Space after power on
OFF: Space when printer selected
Not used

Switch bank 1
Switches
1-1
1-2
1-3
1-4
1-5
1-6
Parity:
ON: Odd
Off: Even
Parity:
ON: Without
OFF: With
Data bits:
ON: 8
OFF: 7
Protocol:
ON: Ready/Busy
OFF: X-ON/X-OFF
Test Select:
ON: Circuit
OFF: Monitor
Mode select:
ON: Print
OFF: Testing
Switches 1-7 and 1-8 control the
Busy Line Selection:
Busy Line Switch
Switch
Selection
1-7 1-8
DTR PIN 20 ON ON
RTS PIN 4 ON OFF
SSD- PIN 11
OFF ON
SSD+ PIN 11 OFF OFF

CONTROL CIRCUIT BOARD SWITCHES
Switches
1 - 2 - 3
International characters:
4-5
6
7
8
Language
Slashed 0
Unslashed O
British
German
French
Unslashed O
French
Canadian
Spanish
Switch 1 Switch 2
OFF OFF
ON
OFF
OFF
ON
ON
ON
OFF OFF
ON
OFF
OFF
ON
ON ON
Form length:
Length Switch 4 Switch 5
5.5 inches
OFF OFF
8.5 INCHES
ON
OFF
11 INCHES OFF
ON
14 INCHES ON
ON
Auto line feed:
ON: Auto line feed on
OFF: Auto line feed off
Data Bits:
ON: 8 bit
OFF: 7 bit
Front panel:
ON: Disable
OFF: Enable
Switch 3
OFF
OFF
OFF
OFF
ON
ON
ON
ON

Resetting the Switches
You’ll need a screwdriver and a fine-tipped tool- a ballpoint pen or a
toothpick will do.
Make sure that the power is off.
1.
2.
3.
4.
1.
2.
Remove the screw from the small cover on the back of the printer
and slide off the cover.
Switches
Using the tool, slide the switch to the new selection.
Replace the cover and tighten the screw. When you turn on the printer
it will activate your new selections.
Installing the Paper Separator
Holding the paper separator parallel to the top of the printer,
insert the tabs into the slots on the top of the printer.
Slide the paper separator towards the back of the printer so that
the tabs fit securely in the slots.

Wire guide
Tab
Paper
separator
Tab
Printhead
centered
Inserting the ribbon cartridge
If you haven’t done so already, lift off the access cover.
1.
2.
3.
Center the print head so that it’s away from the bail rollers. Make sure
the bail is closed lever back.
With the knob side up, tilt the ribbon cartridge onto the print head plate
so that it slides into the area of the plate that is closest to the front
of the printer.
Ribbon shield
Printhead
Knob
Tab

Lower the ribbon shield over the print head, aligning the tabs with the
inserts on the print head plate.
4.
5.
6.
Press on the cartridge until you feel it snap into place.
Caution:
Do not touch the print head directly after printing,
allow five minutes for it to cool.
Note: To remove the cartridge, slide the print head away from the
rollers, grasp the cartridge on both sides and lift off.
Ribbon
shield
Printhead
gap lever
Replace the access cover unless you haven’t put paper in the printer
yet.
Loading paper
Loading sprocket (computer) paper into your printer. The
printer can handle up to 4 part forms.
Before you load paper, be sure to set the blue print head gap lever (located to
the left of the print head) in position 1 for 1-2 part paper, position 2 for
3 - 4 part paper or position 3 for extra thick paper.

Bottom feed
1.
2.
3.
4.
5.
6.
Set the printer on a slotted printer stand, aligning the opening in the
base of the printer with the slot on the stand.
Place the paper under the printer stand.
Lift the access cover.
Open the paper lever and the bail lever
Slide the first sheet of paper through the opening in the base of the
printer.
Using the platen knob, engage the sprocket holes with the pins. If the
pins need adjusting, pull the tabs forward and slide the pins left or right to accommodate the
width of the paper. Lock the tabs when the pins are at the proper distance.
Note: Do Not stretch the paper. If the sprocket holes stretch or tear the
during printing readjust the pins.
Bail lever
(forward
to load)
Tab
(open to
adjust pins)
Paper lever
forward
Tab
(open to
adjust pins)
Bottom fed paper