NCR 7158, Руководство пользователя, Страница: 94 / 314

5-12 Chapter 5: Technical Specifications
Migration
The 7158’s standard command set allows it to work with software
written for NCR or other ESC/POS™ compliant printers.
The 7158 supports two modes of operation: “A756 emulation” and
“A758 native” modes. When the 7158 is configured for A756 emulation
mode through the Configuration Menu, the printer is backward
compatible to 7156 slip and receipt applications except that receipt
print resolution is increased from 6 to 8 dots/mm. If the 6 to 8 dot/mm
conversion features are not used, this will result in the size of graphics
being reduced by 25%.
See Chapter 7: Programming Guide for a comparison to the 7156.
Performance Requirements
Slip Printing
Slip Positioning
Forms are inserted from the front, top-of-form first, up to a form stop
behind the carriage, or inserted from the left side and over-ride the
form stop. In each case the form must be aligned with the check guide
(right edge of the slip path). A pair of optical sensors are located (a) 11
mm (.45 inch) above the print centerline and 25 mm (1.00 inch) from
the check guide, and (b) just inside the check guide and 37 mm (1.45
inches) below the print centerline. The application can use these for
form-in and trailing edge detection. A green slip-in LED indicates
when both detectors are covered.
The application moves the form bi-directionally in 1/72-inch
increments to position the first line of print.