How to resolve partially printed data on Monarch 9855?
- KKayla NelsonSep 14, 2025
To resolve partially printed data on your Monarch Printer, clean the printhead and send a corrected format packet.

How to resolve partially printed data on Monarch 9855?
To resolve partially printed data on your Monarch Printer, clean the printhead and send a corrected format packet.
What to do if my Monarch 9855 is printing light?
If your Monarch printer is printing too lightly, try these steps: change the supply, adjust the print contrast, check the wide/narrow knobs, and check the ribbon.
What to do if my Monarch Printer is printing heavy?
If your Monarch printer is printing too heavily, try these steps: clean the printhead, change the supply, adjust the print contrast, check the wide/narrow knobs, and check the ribbon.
What to do if my Monarch 9855 is printing with voids?
If you notice voids in the printouts from your Monarch printer, try these steps: clean the printhead, change the supply type, and check the ribbon.
How do I fix serial bar codes that do not print on my Monarch Printer?
To resolve the issue of serial bar codes not printing on your Monarch Printer, leave the printhead unlatched when not in use. Use a print speed of 2.5 IPS and adjust the print contrast.
What does it mean if I get an error message during startup of my Monarch Printer?
If you're getting an error message during the startup of your Monarch Printer, turn off the printer, wait fifteen seconds, and then turn it back on. If the error message reappears, contact service.
What does it mean when my Monarch 9855 displays “744 Tag locked fail.”?
If the Monarch printer displays “744 Tag locked fail,” it means the RFID tag is already locked and unable to be programmed. This indicates a bad RFID tag.
What does it mean when my Monarch 9855 Printer displays “746 Lock tag fail.”?
If the Monarch printer displays “746 Lock tag fail,” it means the RFID tag has not been locked to prevent reprogramming. This indicates a bad RFID tag.
What to do if Monarch 9855 Printer displays “743 Program tag failed”?
If the Monarch printer displays a “743 Program tag failed” error, it means the RFID tag was detected but couldn't be programmed. Try increasing the number of write attempts. If the error persists, adjust the attenuation setting by one increment, either increasing or decreasing it. Be aware that setting the attenuation too low might affect the data programmed in adjacent labels.
What to do if my Monarch Printer errors when downloading a script?
If your Monarch printer encounters an error when downloading a script, check the available flash memory. You may need to format flash memory or clear NVRAM.
| Resolution | 203 dpi |
|---|---|
| Print Method | Thermal Transfer |
| Max Print Width | 4.09 in (104 mm) |
| Media Sensor | Reflective and Transmissive |
| Interface | USB |
| Print Technology | Thermal Transfer / Direct Thermal |
| Print Speed | Up to 4 ips (102 mm/sec) |
| Print Width | 4.25 inches |
| Paper Handling | Roll-fed, fanfold |
Step-by-step instructions for loading label rolls or tag supplies into the printer.
Specific procedures for loading labels when using the optional peel mode feature.
Guidance on using linerless printing supplies and related setup.
Instructions for loading and considerations for using string tag supplies.
Detailed steps for correctly loading a ribbon roll into the printer.
How to configure the printer for different types of supply materials like die-cut or continuous.
Configuring ribbon usage and adjusting the printer's print speed for optimal performance.
Configuring the printer's feed mode and backfeed settings for label handling.
Adjusting print, margin, cut, and dispense positions for accurate label output.
Adjusting the darkness and quality of the printed output for optimal readability.
Instructions for enabling and setting up the optional barcode verifier.
Configuring serial port parameters like baud rate, word length, parity, and flow control.
Configuring parallel port settings, including port selection and communication mode.
Options for using flash storage, formatting, checking availability, and packing memory.
Guidance on resolving common printer errors, messages, and operational issues.