Programmer's Guide PcOS Series 150 General Specifications
12/14/99 Rev G Page 9

Interface Specifications

Serial

The serial interface is a standard RS-232 interface on a 9-pin D-shell connector. It is defined
as a standard DTE device. A null modem cable is required to interface the printer to another
DTE device (i.e. a personal computer). See the serial port description later in this manual for
more information.

Parallel

The parallel port is a standard 25-pin D-shell as defined in the IEEE 1284-A standard. See
the parallel port description later in this manual for more information.

USB

The USB interface is a standard Series “B” receptacle as defined in the USB standard. The
printer is a self-powered device and does not draw power over the cable.

Cash Drawer

The Series 150 Printer supports dual cash drawers with status. The interface will provide
status and 24 VDC at up to 1.5 amps to the cash drawer. See the cash drawer interface
description later in this manual.
Media Specifications

Ribbon

Inking method Cartridge type, 1.8 m seamless ribbon with reinker
Ink color Black or purple
Ribbon life at 25 °C3 million (black) or 4.5 million (purple) characters to ink depletion2
Manufacturer Only Ithaca Peripherals approved ribbons should be used.

Receipt Paper

Paper feed method Friction feed
Paper feed pitch Default - 0.13 inch (1/8 inch or 3.18 mm); can be set in units of
0.0046 inch (1/216 inch or 0.12 mm) by software command
Paper width 2.75, 3.00, or 3.25 inches (69.85, 76.20, 82.55 mm)
Roll diameter 3.50 inches (88.90 mm)
Paper thickness 0.003 - 0.0035 inch (0.76 - 0.089 mm) at 25 °C
Roll paper core Inside diameter 0.44 inch (7/16 inch or 11.11 mm)
Roll footage (typical) 240 feet (7315 cm)
Receipt-paper out Paper exhaust is sensed by software, and printing is prevented at the
end of the roll.
2 The ribbon must be from an approved manufacturer and tested with a rolling ASCII test pattern using 15
characters per inch (cpi) in high speed draft (HSD) mode.