Genicom microLaser 170 User Manual

Page 55

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C O M M U N I C A T I O N S

Setting Communications Mode

Press the right or left oval key to display other choices.

Default: Normal Mode

Selections: Normal Mode, Diagnostics

The Communication Diagnostics Mode is a troubleshooting tool for checking the interconnection
between the printer and the host. When “Diagnostics” is selected, all data sent from the host to the
printer will be printed as straight ASCII hex characters. The printer prints all characters received
including control codes, like CR (Carriage Return). A sample printout is shown in Figure 18 on
page 73.

Notes on diagnostic printouts:
• An FE indicates a framing error.
• An OE indicates an overrun error.
• An PE indicates a parity error.
• An NE indicates noise.

For any errors, check that your communication parameters are correct. Set the print width equal to
or less than the label width used for the test. See page 36 for more information.

Selecting Prefix and Delimiter Characters
Prefix and delimiter characters are 2-digit hex values used within the ZPL/ZPL II formats sent to the printer. The printer uses the last prefix
and delimiter characters sent to it, whether from a ZPL II instruction or from the front panel.

Note:

To change the values, refer to the ASCII code chart on page 112 for character choices. DO NOT use the same hex value for the Con-

trol, Format, and Delimiter character. The printer needs to see different characters to function properly.

C O N T R O L P R E F I X

Control Prefix Character

Press the left oval key to move to the next digit position, press the

right oval key to increase the value of the digit.

Default: 7E (tilde - displayed as a black square)

Range: 00 - FF (Exclude the values indicated

on the ASCII code chart on page 112.)

The printer looks for this 2-digit hex character to indicate the start of a ZPL/ZPL II control instruc-
tion.

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