Chapter 5 Application Development Information; Various Status Categories; Printer Status On Apd - Epson U220B - TM Two-color Dot-matrix Printer Technical Reference Manual

Chapter 5
Application Development Information
This section contains usable information to develop POS systems that use this printer.

5.1 Various Status Categories

This printer is able to send various status reports to the host PC. This section describes about the
kind of statuses and handling.
Status Categories
Drawer kick connector pin
status
Roll Paper cover status
Paper feeding button status
Error status
Paper remaining amount
status
Note
Near-end status (paper remain status) is supported only by printers equipped with a near-end
detector. The near-end detector is a factory option.
This printer has an Automatic status back (ASB) function that automatically transmits changes in
printer status. It is available in any control method (APD, OPOS, ESC/POS command.)
The status format depends on each control method. Refer to each manual for detail.
The statuses are useful for the following situations.
When an error status is sent to the host PC, the host PC can display an error message or
solution message for operator.
When "Paper near end" or "Paper end" status is sent to the host PC, the host PC can display
a warning message for operator to replace roll paper.

5.1.1 Printer Status on APD

When you use APD to get printer's status, you have to install "Status API" and use it. Refer to
"Status API User's Manual" and the sample program of Status API for details.
Rev. D
Description
Cash drawer is open or closed.
Roll paper cover is open or closed
Paper feed button is pressed or not
Various error information (Off-line / On-line), (detail of the error;
Mechanical error, autocutter error, auto-recovery error,
unrecoverable error)
It provides status of paper remaining amount (Near-end or Paper
end)
Application Development Information 5-1
TM-U220 Technical Reference Guide