Brother PocketJet3Plus w BT (PJ-563): Chapter 6 - Troubleshooting
Chapter 6 - Troubleshooting: Brother PocketJet3Plus w BT (PJ-563)

Chapter 6 - Troubleshooting
Overview
If you have difculty getting your printer to work properly, rst check to make sure you
have done the following tasks correctly (See Chapter 1, “Setting Up the Printer”).
• Installing the battery or connecting the printer to an AC outlet
• Connecting the printer to your computer
Make sure you have installed and selected the proper printer driver as explained in
Chapter 2, “Using the Printer”.
Look through the troubleshooting tips in this chapter for help correcting the problem.
If none of these suggestions works:
- If you are in the U.S., call Brother Technical Support at 1-800-543-6144 (extension
1601) from 8 AM to 5:00 PM Mountain Time, Monday through Friday.
- If you are outside the U.S., contact your local reseller or any of the Authorized
Service Centers.
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Paper Problems
The paper is jammed in the printer
See page 43, “Clearing a Paper Jam”.
Paper moves through the printer, but nothing appears on the paper
Make sure you are using Brother Genuine Thermal paper and that you are loading it
properly with the print side away from you. See page 41, “Inserting Paper”. Also,
check the Print Density setting using the “Accessing Advanced Software Features”,
Chapter 2.
Paper does not move through the printer even though the motor is
running
If the release cover has been left open, close it completely.
Use Brother Genuine Thermal paper only. Heavy paper may not feed through
the printer.
If the release cover is closed and you are using Brother Genuine Thermal paper, the
printer may have a damaged drive system. Call Technical Support at 1-800-543-6144,
ext. 1601.
Printed Image Problems
The printed image is out of alignment
Make sure you are using the Brother Genuine Thermal paper.
Make sure you are inserting the paper correctly. See page 41, “Inserting Paper”.
Check to see whether the platen roller is dirty. If it is, clean it. Follow the instructions
for “Cleaning the Platen Roller”, page 47.
The print quality is poor, and the image is too light or dark
Raise or lower the density setting using the printer driver. See page 16, “Making Prints
Lighter or Darker”.
Make sure you are using recommended Brother Genuine Thermal paper.
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The image is compressed and stretched in many places
Make sure the release cover was not left open during printing. If it is open,
close it completely.
Make sure the paper is not slipping in the printer. If it is, make sure the print head and
platen roller are clean. See Chapter 4, “Maintaining the Printer”.
Make sure the paper is not wrinkled prior to inserting it. Also, make sure you are using
Brother Genuine Thermal paper.
The image has light or white vertical lines
Make sure the release cover was not left open during printing. If it is open, close it
completely.
Clean the print head. Follow the instructions in “Cleaning the Print Head”, page 45.
If cleaning the print head does not correct the problem, the print head may need
maintenance. Call technical support.
All pages have a white vertical line
Clean the print head. Follow the instructions in “Cleaning the Print Head”, page 45.
If the pages continue to have white vertical lines, the print head may need maintenance.
Call technical support.
All pages have a black vertical line
Clean the print head. Follow the instructions in “Cleaning the Print Head”, page 45.”
If the pages continue to have black vertical lines, the print head may need maintenance.
Call technical support.
Light patches of print appear on the image
The printer requires smooth paper to work properly. Make sure the paper does not have
any dents or wrinkles. It should lie at and it should not have a defective or uneven
surface coating. Use Brother Genuine Thermal paper and make sure it does not have
any obvious deformities.
Check the density setting using the printer driver. If the setting is too low, raise it. See
page 16, “Making Prints Lighter or Darker”.
Clean the print head. Follow the instructions in “Cleaning the Print Head”, page 45.
If using the DC power adapter, make sure the voltage from the vehicle is high enough.
Try starting the engine if necessary.
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The top margin is incorrect
Make sure the correct margins have been set in the conguration utility and your
software application. If not, set the margins for the top and bottom of the page
as needed.
Make sure you are not inserting the paper into the paper input slot with excessive force.
Always insert the paper gently.
The image for one page requires more or fewer sheets than you
expected
Make sure the software application, the printer, and printer driver have been set to print
the same size paper that you are loading into the printer. If the application or printer
driver has been set to print legal-size paper and you insert letter-size paper, the image
will require two sheets. Adjust the application or printer driver settings as needed or
reduce the print image within your application to t on the letter-size page.
The data light will remain lit green to indicate that data is still in the printer after the
page has completed printing.
The side margins are incorrect
Check to make sure the correct margins have been set in the conguration utility and
your software application. Adjust the left margin as needed.
Make sure the software application or the printer driver has been set to print the same
size paper that you are loading into the printer. If the application or printer driver
has been set to print a different width paper, the image will not print in the proper
horizontal position. Adjust the application or printer driver as needed.
The print does not contain the proper characters
Make sure you have dened the proper character set (font) in the software application.
If it is not correct, you must change it.
Trying another font may tell you if the original font was in error.
The print contains random dots
Check the printer driver to make sure it is set correctly. Check the interface cable to
make sure it is connected rmly and correctly. If possible, replace the interface cable
with another and permanently replace it if it is defective.
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Pages Don’t Print
The green DATA indicator remains lit but does not blink
The print buffer contains unprinted data from the software application.
- If you have already inserted paper in the printer, take the paper out and re-insert it to make
sure the printer knows paper is ready. If that doesn’t work, you may need to turn the printer
off, turn it back on, and restart the print job.
If paper has not already been inserted into the printer, insert a new sheet of paper and the
print job should proceed.
- An ASCII text application has not nished a text line with a CR/LF or form feed, and the
printer does not know the line is complete. Printing another page or manually form feeding
using the main switch may nish the page correctly.
The application should be sending data to the printer, but the green
DATA indicator is not lit
Make sure the interface cable is properly connected to both the printer and the host
computer, or that the infrared unit is properly connected and oriented toward the infrared
unit on the computer. See page 13, “Connecting to your Computer.”
Pages Are Partially Printed
The green DATA indicator light goes out while a page remains in the
printer
The software application may not have sent a full page of data. Restart the print job.
The application may have sent the wrong information about page size or you may have put
in the wrong paper size. Check the application and the print driver for the proper page size.
Check to be sure the application and the page you are inserting in the printer are the same.
Adjust one or the other if necessary.
Make sure the printer driver is not inadvertently set to “No Feed Mode.”
You may advance the paper position by pressing and holding the main switch while paper is
loaded.
The printer ejects a partially printed page, and the green DATA
indicator light remains lit or blinking
Make sure the Paper Size selection is correct using the application’s dialog box.
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