Troubleshooting and recovery, Service
14
GeBE E + F GmbH • www.gebe.net • GeBE Doc.No.: SMAN-E-657-V1.4 Thermal Printer GPT-4672/4673
12 Troubleshooting and recovery
Not every failure means that there is an error that cannot be cleared by the user himself. You will save time and
money by recognizing and fixing simple errors on your own. The following tips are meant to help you with this:
Hardware RESET:
Activated by unplugging and reconnecting the power supply after a short break.
This sets the printer in accordance with the TINIT-F and/or the TINIT-E in the batch file.
Symptom
Possible Cause
Remedy
The printer seems to be
printing, but the paper is
not blackened.
The printer only prints a few
characters in one line. If
more is entered, it stops
printing altogether.
Paper inserted incorrectly.
The power supply is not optimal.
Insert paper correctly.
Use sufficiently sized power supply and short feed
lines. Check all connections for possible transfer
resistances. Since high peak currents occur with
thermal printers, even the smallest transfer
resistances can result in intolerable voltage drops. In
this case, no power supply would be strong enough.
Buffering with capacitors is possible, if the power
supply is only too weak by a small margin and large
capacitors (e.g. 4,700 µF; high switching
capability) are used.
The printer only prints a few
dots in one line.
After a few characters, the
printout
starts
to
be
incomplete.
The printer prints the wrong
characters.
The printer buffer is "over-run" (256 bytes),
causing loss of data.
Solution: Use or check handshake. (software: Xon/
Xoff or hardware).
If necessary: slow down transmission speed, e.g.
down to 1,200 baud.
(See MAN-E-559 Interface Settings)
TTl instead of RS232 interface or
vice-versa. (Characters of the upper area
are printed).
Bad ground connection that causes a part
of the printing current to flow through the
interface cable. This leads to an increase
in potential there, which results in data
corruption.
Use correct interface.
Repair ground connection.
Printer works with a PC, but
not at the machine.
Printer is electrically incompatible with the
host.
Measure level of the line signaling the errors.
GeBE can adjust this.
13 Service
Warranty
We guarantee that all goods supplied by GeBE possess the warranted features. The guarantee period for OEM's
is 12 months unless other terms have been agreed upon in writing, and is calculated from the date of shipment.
The warranty is null and void, if the customer fails to claim an occuring defect without delay and in writing.
Detailed information on our warranty is part of our terms of delivery and payment, which can be seen and
downloaded at www.oem-printer.com/lzb (home page chapter: About Us).
Service
For service or questions, please contact: GeBE Elektronik und Feinwerktechnik GmbH
Beethovenstr. 15 • 82110 Germering • Germany • www.gebe.net
Phone: +49 (0) 89/894141-0 • Fax: +49 (0) 89/8402168 • Email: [email protected]
Further Information
Further information on the INFO printer series is available at www.oem-printer.com/info.
At this address, you can also find a personal consultant you can turn to with your questions.
Or, simply send an email to the GeBE sales team: [email protected]
For orders you can use this fax number: +49 (0) 89/894141-33
