Programming 39

Software Command Syntax

Software Command Syntax

The commands in this section are grouped according to what they do, and these groups are sorted in a theoretical usage sequence. It starts with commands for specifying the printed page

—through text-and-graphics commands — to cut-and-present commands. System and status commands are presented at the end.

Black Mark (Top-of-Form) Commands

See also Aligning Preprint and Thermal Print on page 101.

ESC #

1B 23

Hex

27 35

Decimal

Calibrate TOF Sensor

When the printer is not in black mark mode, the calibration measures the out of paper level (parameter 58) and the whiteness of the paper.

In black mark mode it also determines if it should trigger on black marks or holes, then measures the contrast of the mark and distance between marks, then sets parameters n37 -n40, n51, n57 bit 3, and n58 to suitable values for the analyzed ticket.

To make the calibration permanent, send <ESC>&<4>, store parameter values.

Note • If black mark calibrations fails, the printer will indicate error code 11 by blinking 11 times when you hold the Feed button pressed, and by answering NAK 11 to the status enquiry.

 

ESC Z

 

Go to Next Top of Form

1B

5A

Hex

 

27

90

Decimal

 

 

 

 

 

In black mark mode, an

ESC Z starts looking for a black mark at the current position and

continues to search for the page length (as defined by n37 and n38) plus the mark height (as defined by n39) plus 10 mm. If no black mark is found, bit 3 in byte one in the ENQ 6 response is set to 1 and the printer will report NAK 10 on the next ENQ 1 or ENQ E query.

When black mark mode is disabled, ESC Z will perform a form feed.

09/14/2009

TTP 2000 Technical Manual

P1002902-002