Pentax PocketJet User Manual page 56

NOTE: In its default mode (six lines per inch), the printer
expects 60 lines per letter-size page, 64 lines per A4-size
page, and 78 lines per legal-size page. Other lines-per-
page totals are possible if you adjust the lines per inch
by sending the appropriate commands to the printer.
See also "The Printer Ejects a Partially Printed Page..." on
page 52.
The side margins are incorrect.
Check to make sure the correct margins have been set in
the application. Adjust the left margin as needed.
Make sure the software application or 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.
If you are using DOS "PRINT" or "COPY" commands or a DOS
application that does not send PCL printer setup information
prior to the print job, check the settings of the DIP switches
that control the default paper size. See page 26.
The print doesn't show the proper characters.
Make sure you have defined the proper character set in the
application or other software. If incorrect, change it.
If you are using DOS "PRINT" or "COPY" commands or a DOS
application that does not send PCL printer setup information
prior to the print job, check the settings of the DIP switches
that control the default character set. See page 26.
If you are using a downloaded font, try another font to see if
the original font is in error.
The print shows random characters.
Check the printer driver you are using. Select the LaserJet IIP
printer driver, or if necessary, the LaserJet II driver. Do not
select the LaserJet IIP Plus driver.
If you are using the parallel interface cable, the parallel
connection may be defective. Replace the defective
part—most likely the interface cable.
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Pentax PocketJet Printer User's Guide