Epson U220B Technical Reference - Page 95

Application Development Information

Page 95 highlights

TM-U220 Technical Reference Guide 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 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) 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 Application Development Information 5-1

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Rev. D
Application Development Information
5-1
TM-U220 Technical Reference Guide
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.
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.
Status Categories
Description
Drawer kick connector pin
status
Cash drawer is open or closed.
Roll Paper cover status
Roll paper cover is open or closed
Paper feeding button status
Paper feed button is pressed or not
Error status
Various error information (Off-line / On-line), (detail of the error;
Mechanical error, autocutter error, auto-recovery error,
unrecoverable error)
Paper remaining amount
status
It provides status of paper remaining amount (Near-end or Paper
end)