Why is a vertical column of print missing on my Wincor Nixdorf TH320?
If a vertical column of print is missing, or one side of the receipt is missing, or the top or bottom half of characters are missing on your Wincor Nixdorf Printer, the printhead may be defective or there may be an incorrect printhead setting. Contact a service representative, or check the diagnostics setting.
Why doesn't the slip-in light come on in my Wincor Nixdorf TH320?
If the slip-in light does not come on in your Wincor Nixdorf Printer, it's likely that the form or check is not inserted properly. Line up the form or check against the check guide (wall) and slide it toward the front of the printer until it is visible from the top (the light should come on). Extra-long forms may need to be inserted from the side to disengage the Form Stop. See the 'Printing on forms or checks' section or 'Verifying and validating checks' section.
How to troubleshoot a Wincor Nixdorf TH320 Printer that doesn’t have power?
If your Wincor Nixdorf Printer doesn’t have power (light not on), the power supply may be defective. If the power supply is plugged in but does not come on, you need to order a new power supply. See 'Power supply and power cords'.
General| Printing Method | Direct thermal |
|---|---|
| Paper Roll Diameter | Up to 83 mm |
| Power Supply | 24 V DC |
| Type | Thermal Printer |
| Print Technology | Thermal |
| Print Resolution | 203 dpi |
| Interface | USB, Ethernet |
Device complies with EU directives for electromagnetic compatibility and low voltage.
Equipment tested to FCC Class A limits for commercial environments, potential for residential interference.
Company not responsible for interference from unauthorized modifications.
Device conforms to safety regulations; connect only approved power supplies.
Avoid condensation, protect from damage during transport, keep dry and clean.
Clean TH320 regularly with appropriate product, ensure device is off and unplugged.
12 months from delivery, covers damages despite normal use.
Improper maintenance, use, modifications, or location are not covered.
Product designed to internal norm 'Environmental conscious product design and development'.
Class B product based on VCCI standard; radio disturbance may arise in domestic environment.
Four chapters cover printer setup, operation, testing, and servicing.
Low-cost, high-efficiency POS printer with smallest footprint, two-color thermal & impact slip printing.
Features two-color thermal printer for receipts and impact slip printer for forms/checks.
Connects via RS-232C, USB, or PoweredUSB; supports standard command set for communication.
Easy-to-use thermal printer requires no ribbon; impact printer handles multi-part forms up to four plies.
Read and understand sections before setup; follow presented sequence.
Place on level surface near host computer; avoid dusty or liquid-prone environments.
Remove printer from packaging, ensure sufficient space for cables and covers.
Save packing materials for protection and potential future use.
Verify all included items against the list before installation.
Remove internal packing restraints after placing printer in user position.
Replace paper when error light blinks; open cover, remove old roll, place new roll correctly.
Change ribbon if printing is light or inconsistent.
Open front cover, pinch tabs, pull old cassette upward.
Open front cover, unwrap, tighten ribbon, position and snap cassette into place.
Connections made at the back; caution with USB cable placement.
Connect cash drawer cable to printer's cash drawer connector.
Connect printer to host computer via RS-232C; turn off computer before connecting.
Plug printer end of USB cable into printer's USB port, then computer end into computer.
Connect Powered USB cable to the printer's Powered USB connector.
Connect power supply cable last; use shielded cables for warranty compliance.
Route cables to prevent accidental unplugging using strain reliefs.
Prints printer settings and cuts paper; useful for diagnostics and service representatives.
Open receipt cover, hold paper feed button, close cover, release button to start printout.
Displays model, firmware, hardware parameters, communication settings, and user tallies.
Paper types and grades can be changed in configuration menu (e.g., Monochrome, Two-color).
Settings pre-set at factory; accessible via receipt and scrolling instructions.
Includes Communication Interface, Diagnostic Modes, Emulation/Software Options, Hardware Options, Paper Type.
Check paper, turn printer, set DIP switch 1 ON, press reset while holding paper feed button.
Follow printed instructions, use paper feed button for selections (short click for No, long click for Yes).
Select 'Yes' to save, return DIP switch 1 OFF, press reset to apply settings.
Select 'Set Communication Interface' to change interface type (RS-232C, USB, Powered USB).
Adjust Baud rate, Parity, Flow control; data bits and stop bits are fixed.
Includes Normal, Datascope (hexadecimal output), Receipt test, Slip test, MICR test.
Select 'Diagnostic Modes' and enable Data scope mode (prints hexadecimal dump of data).
Exit config menu, run transaction; commands/data printed as hexadecimal characters.
Select 'Diagnostic Modes', enable Receipt test; push feed button to print two code pages.
Enable Slip test, exit config, insert slip, push feed button to print two code pages.
Enable MICR test, exit config, insert check; printer reads and prints characters.
Select Native mode or A756 Emulation; determines available commands.
Configure printer to send back specific ID (TH320, TH420, A758, A756).
When enabled, ejects slip when receipt is selected.
Set printhead energy rating to match mechanism; do not change unless replaced.
Adjust printhead energy for color printing or paper variations; use minimum necessary level.
Adjust energy for monochrome darkening or paper variations; slows down for high-density graphics.
Choose 48W, 55W, or 75W supply to match printer wattage.
Allows reset by opening/closing front cover instead of dip switch or reset button.
User can enable or disable the paper low sensor functionality.
User can enable or disable MICR check reading.
Allows second MICR reading attempt if first is unsuccessful.
Insert checks or forms for transactions like credit, returns, EFTs, or printing check details.
Insert form from front, slide to right, until slip-in light turns on.
Insert form from top/side, slide to right, until slip-in light turns on.
Insert multi-part forms glued-edge-first to prevent jams.
Ensure checks are free of folds/wrinkles; insert face down with bottom edge to right.
Slide check forward until green slip-in light illuminates.
Follow host instructions; check is fed, read, and backed out for endorsement.
Apply duty cycle restrictions; reduce coverage, printing time, or ambient temperature.
Table shows duty cycle limits based on solid coverage percentage and ambient temperature.
Protect printer from airborne contaminants; consider harsh environments kit and regular cleaning.
On-line, paper status, error light indicates printer status; slip-in light indicates form insertion.
Cycle power, check lights, run test prints, identify problem printer (receipt or slip).
Single, double, triple beeps at power-on indicate electronics problem; beeps during operation depend on software.
Check paper, covers, knife, voltage, or print head temp; contact service if problem persists.
No power: check supply; power on but no print: check cables, DIP switches, or other causes.
Indicates paper out, cover open, knife/carriage jam, or low paper.
Ensure form/check is inserted properly; check orientation and alignment.
Poor print quality may indicate communication error, software error, or form insertion issues.
Poor receipt quality can be due to paper low, paper jams, dirty printhead, or defective ribbon cassette.
Problems include skewing, jams, MICR misreads due to fraud or magnetic interference.
Receipt not cut indicates paper jam or other problems; clear jam or contact service.
Problems like MICR reader failure, forms feeding issues, missing dots, illegible characters require qualified service.
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