Faq List; Q: Why Has My Print Data Dropped Out; Q: Why Does The Drawer Kick-Out Not Operate Properly - Epson TM-T88IV Technical Reference Manual

3.10 FAQ List

Listed here are the most-asked questions (Q) and answers (A).
1. Look for information relating to your inquiry or problem in the questions.
2. Then, follow the instructions described in the "A" sentence below it.

3.10.1 Q: Why has my print data dropped out?

A: Check the handshake process. Data dropout can occur when the handshake between the
host computer and printer is not performed correctly. This can result in errors related to
print buffer size.
3.10.1.1 Corrective procedure
1. Check the serial communication cable, and check the cable connector specifications.
(See "Serial Interface Connection" on page 2-8.)
2. Check the serial communication conditions of the printer and the host.
Serial communication conditions
• Baud rate
• Parity
• Flow control
• Data length
You can check printer settings as follows:
1. Run a self-test to check the printer's serial communication conditions. (See page 3-13.)
2. Setting communication conditions using the DIP switches. Set the baud rate with DIP
SW1-7 and SW1-8. (Refer to page 2-4.)

3.10.2 Q: Why does the drawer kick-out not operate properly?

A: Drawer specifications differ depending on the manufacturer and the part number. Make
sure the specifications of the drawer to be used meet the following conditions before
connecting it to the drawer kick-out connector. These conditions also apply to any other
devices that use the drawer kick-out connector. Any devices that do not satisfy all the
following conditions must not be used.
Conditions
• A load must be provided across drawer kick-out connector pins 4 and 2 or across pins 4
and 5. (*1)
• When the drawer open/close signal is used, a switch must be provided across drawer
kick-out connector pins 3 and 6. (*2)
The solenoid used for the cash drawer must have a resistance of 24 Ω or higher. (*3)
•
3-14 Application Development Information Rev. A