Glossary

 

After printing, labels can be easily removed from the

 

liner and the liner discarded or recycled.

Label Taken Sensor

A sensor located at the front of the printer to detect

 

the presence of a label positioned under it. The

 

sensor is used only during Peel-Off and Tear-Off

 

Media Handling to sense a label and then detect its

 

removal prior to printing the next label.

Media

Material onto which data is printed by the printer. The

 

types of media supported by the printer are die-cut

 

labels or tagstock, supplied in roll or fanfold format.

 

Media is further described by the type of sensing

 

used to detect the Top of Form position of its

 

predetermined length. Transmissive media uses a

 

liner gap, notch or hole between labels and

 

Reflective media uses a horizontal black mark

 

located on the back of the tagstock or label liner.

 

Continuous media uses no sensing method and the

 

operator determines which label length is desired.

Media Cutter

An optional device attached to the front of the printer

 

that cuts the media after it is printed into individual

 

labels or after a specified number of labels.

Media Sensor

The assembly used to detect the presence of media

 

in the paper path, as well as, the gap, notch, or hole

 

position of Transmissive media or the horizontal

 

black mark on Reflective media.

Memory

See RAM, Nonvolatile Memory, DRAM, and Flash

 

Memory.

Nonvolatile Memory

Nonvolatile memory stores variables that must be

 

preserved when the printer is turned off, such as

 

configuration parameters and printer usage statistics.

 

Nonvolatile memory is preserved because RAM is

 

housed on the controller board, which contains an

 

independent, battery-operated power supply. When

 

printer power is turned off, the battery supplies the

 

power needed to keep stored data active. Nonvolatile

 

memory also includes storage in disk.

NOVRAM

Acronym of Nonvolatile Random-Access Memory.

 

See Nonvolatile Memory.

Parity (check)

Parity checking is the addition of a non-data bit to

 

data, resulting in the number of “1 bits” being either

 

always even or always odd. Parity is used to detect

 

transmission errors. Parity represents value in the

 

check digit of the received or transmitted data.

PCBA

Printed Circuit Board Assembly. A PCB with

 

components (ICs, resistors, capacitors, etc.)

 

installed.

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Printronix T4204 manual Glossary