Toshiba
Printer troubleshooting · Toshiba
Toshiba printer troubleshooting: error messages and fixes by model
Scheduled visits to check, clean and adjust your printers and spot worn parts before they fail.
In brief. TIMCOD technicians have documented 88 problems across 3 Toshiba industrial printers: B-EX4T1, B-EX6 (B-EX6T1 and B-EX6T3) and B-852 (wide format). Messages appear on the display in English or French depending on the language selected, for example HEAD OPEN or TETE OUVERTE. The most frequent ones, head open, no paper and ribbon error, usually come from a printhead that is not properly latched, or from media or ribbon that is incorrectly loaded or not detected. A printhead error (HEAD ERROR) that persists after cleaning means the printhead needs replacing.
Examples:
Toshiba troubleshooting guides by model
Each guide lists the model's messages and lights, then one entry per fault: cause, steps to follow, and when a technician is needed.
Toshiba error messages: meaning and first action
The messages below appear on several Toshiba models. The detailed entry for each model gives the exact procedure.
| Message | Meaning | What to do first | Models |
|---|---|---|---|
NO PAPER | The sensor no longer sees the media: roll not correctly fed, sensor out of position or dirty, printer not calibrated for these labels. | Reload the roll, reposition the sensor, then calibrate. | |
RIBBON ERROR, NO RIBBON (B-EX4T1) | Ribbon incorrectly loaded or not detected, printer not calibrated for this ribbon, or set to thermal transfer with labels that do not use a ribbon. | Reload the ribbon and calibrate, or switch to direct thermal mode. | |
HEAD OPEN | Printhead or cover not fully latched, or open sensor dirty or faulty. | Open and close again until it clicks; if the message is still displayed, have the sensor checked. | |
EXCESS HEAD TEMP | Long print runs, high speed or darkness, hot or poorly ventilated room. | Let it cool down: printing resumes. If the message comes back, reduce the speed or move the printer. | |
HEAD ERROR | Failed heating elements (vertical white lines) or thermistor fault. | Clean the printhead; if the fault persists, replace it. The thermistor is a job for a technician. | |
PAPER JAM | The sensor cannot find the gap, notch or black mark between two labels: wrong detection mode, dirty or badly positioned sensor. | Choose the right detection mode, clean the sensor, run a calibration again. | |
CUTTER ERROR | Blade jammed or label stuck in the cutter module. | Switch off and unplug, clear and clean the cutter without touching the blade. | |
COMMS ERROR | Driver, port or network settings that do not match between the computer and the printer, faulty cable or wireless link. | Check the driver, the port, the cable and the network settings on both sides. |
Messages as worded in the Toshiba documentation. The display shows the message in English or in the selected language; the asterisks (****) stand for the number of labels still to be printed.
No message? The most common symptoms on Toshiba printers
These guides cover one symptom across all brands; the Toshiba models concerned are shown on each card.
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Why is my label printer skipping labels or shifting the print?
In most cases, the printer is no longer calibrated for the media loaded: it no longer detects the gap, notch or black mark between two labels. Run a sensor calibration again after every label change, and check that the sensor is clean and correctly positioned.
Read the full guide -
Why does my printer say “paper out” when the labels are loaded?
The sensor cannot see the media: roll not correctly fed under the sensor, sensor out of position or dirty, or printer not calibrated. Reload the roll, reposition the sensor, then calibrate.
Read the full guide -
Why is my thermal printer printing faded labels or unreadable barcodes?
Dirty printhead or platen roller, darkness too low, insufficient printhead pressure or ribbon unsuited to the media. Clean the printhead first, then increase the darkness step by step; if nothing changes, the printhead may be worn.
Read the full guide -
Why are vertical white lines appearing on my labels?
White lines that stay in the same place on every label indicate dirty or failed heating elements. Clean the printhead: if the lines persist, it must be replaced.
Read the full guide -
Why is my printer printing blank labels?
The print mode does not match the media (direct thermal or thermal transfer), the ribbon is loaded with the ink side facing the wrong way, or the thermal roll is loaded the wrong way round. Check these three points before changing the darkness.
Read the full guide -
Why does my printer say “Ribbon Out” when the ribbon is loaded?
The ribbon is incorrectly loaded or not detected, the printer has not been calibrated for this ribbon, or it is set to thermal transfer when your labels do not use a ribbon. Reload the ribbon, calibrate, or switch to direct thermal.
Read the full guide -
Why is my printer ribbon wrinkling or breaking?
Ribbon incorrectly loaded or tensioned, darkness too high, printhead pressure too high or uneven, or ribbon too wide for the labels. Reload the ribbon, then set darkness and pressure to the minimum that gives a good print.
Read the full guide -
Why does my printer say “head open” when it is closed?
The printhead or cover is not fully latched, or the open sensor is dirty or faulty. Open it and close it again until it clicks; if the message is still displayed with the printhead closed, have the sensor checked by a technician.
Read the full guide -
Why does my label printer not respond when I send a print job?
The job does not reach the printer (driver, port, cable, network or Bluetooth pairing), or it arrives in a language the printer does not recognise. Check whether the data light reacts when you send the job: it is the first clue as to which side to investigate.
Read the full guide
Three checks before calling a technician
They resolve most of the messages documented on Toshiba printers.
- Are the media and ribbon loaded correctly?Roll fed under the sensor and against the guide, ribbon fitted the right way round (ink side facing the label) and taut. Most out-of-paper and out-of-ribbon messages come from this.
- Is the printer calibrated for this media?Recalibrate after any change of labels or ribbon, and as soon as the printer skips labels. Each model's own procedure is given in its guide.
- Is the printhead clean?Printhead cooled, cleaned with the product specified by the manufacturer, then the platen roller. A dirty printhead explains most faded print and white lines.
The most common faults on Toshiba printers
Breakdown of the 88 documented problems by category. Error messages (23) and cutter and peeler (10) top the list.
Maintenance and repair of Toshiba printers
When a message persists after reloading, calibration and cleaning, or when Toshiba refers you to a technician, TIMCOD teams take over: phone support, repair, express exchange and preventive maintenance contracts.
Maintenance contract
Preventive maintenance (printer checks, minor fault fixes, detailed report) and corrective maintenance (phone support, repair, express exchange). Essentiel, Confort or Premium plans.
See the contractsRepair request
Toshiba printer out of order? Give the model and the problem in the repair request form (in French) and our team will get back to you.
Request a repairQuote or out-of-contract service
Printer bought elsewhere, a fleet to bring up to date or a contract to set up: describe what you need and our team will get back to you.
Contact us
Also at TIMCOD (in French)
Toshiba printers: frequently asked questions
What does “HEAD OPEN” mean on a Toshiba printer?
The printhead is not latched. Close the printhead block until it latches, then press RESTART if the printer does not resume on its own. If the message is still displayed with the printhead closed, have the printer checked. See the guide for your model.
Why does my Toshiba printer say “NO PAPER” when the roll is loaded?
The sensor is not detecting the media: roll not fed in properly, sensor badly positioned or dirty, or a detection threshold unsuited to the labels. Reload the media, check the sensor, then press RESTART.
What should I do about a “RIBBON ERROR” on a Toshiba printer?
The ribbon is incorrectly loaded, slack, broken or used up. Reload it correctly, keeping it taut, or replace it, then press RESTART.
Can Toshiba error messages be displayed in French?
Yes. Depending on the language set in the printer, the same message is displayed in English or French, for example HEAD OPEN or TETE OUVERTE. The English guides on this site use the English labels.
How do I clean the printhead on a Toshiba printer?
Switch the printer off, open the printhead block and let the printhead cool, then clean it with the cleaning pen or a cotton swab moistened with alcohol, without using any hard object. Also clean the platen roller and the sensors. See the guide for your model.
Sources consulted
The official Toshiba documents most cited in this brand's guides. Each model guide lists all its documents.
- 5.1 Error Messages – Toshiba B-EX6T Series Owner's Manual (opens in a new window) official
- 5.1 Error Messages – Toshiba B-EX4T1 Series owner's manual (Owner's Manual, version 0201) (opens in a new window) official
- 5.1 Error Messages – Toshiba B-852-R owner's manual (Owner's Manual, Ver0120) (opens in a new window) official
- 6.10 LCD Messages and LED Indications – Toshiba B-EX4T1/4T2/4D2/6T1/6T3 Key Operation Specification (opens in a new window) official
- 5.14 LCD Messages and LED Indications – Toshiba B-852-TS22-QQ/QP-R key operation specification (opens in a new window) official
- 4.1 Error messages – Toshiba B-EX4T Series user manual (French, Ver0220) (opens in a new window) official
- 5.1 Error messages – Toshiba B-852-R user manual (French, Ver0120) (opens in a new window) official
- 3.3 Stock Tab – Toshiba printer driver manual (Printer Driver Operating Manual, 27th edition) (opens in a new window) official
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