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Maintenance and Troubleshooting
Cleaning
In normal environments, the printer should be cleaned after printing a few rolls of paper or if there are voids in
the printout. For optimum performance and life, you should clean the Print Head and Platen Roller whenever
you load new paper. If your printer is an MLP 3040 SL model, you should also clean the Pick Roller.
To clean the printer areas as described below, use a Thermal Head Cleaning Pen and MCR Cleaning Card
available from Psion Teklogix, or you may use cotton swabs moistened with isopropyl alcohol. Please refer to
Figure 13 for the following instructions.
Pick Roller
(
SL Onl
y)
MCR Slot
Print Head
Black Mark
Sensor
Tear Bar
Black Mark
/Gap Sensor
(LP Only)
Platen Roller
Figure 13 - Printer Cleaning Areas
• Turn the printer off. Open the Paper Door and remove the paper roll or cassette.
• Using a Thermal Head Cleaning Pen, clean the surface indicated on the Print Head.
Caution: Do not use sharp objects to clean the print head. This may damage the printer and require
service. Such damage is not covered under warranty.
• Clean the Black Mark Sensor below the print head.
• Clean the Tear Bar
• If your printer is an MLP 3040 SL model, clean the Pick Roller. (The roller only turns in one
direction.)
• Clean the Platen Roller. Turn the platen roller with your finger to clean the entire surface.
• If your printer is an MLP 3040 LP model, clean the Back Black Mark/Gap Sensor on the paper lid.
• If a Magnetic Card Reader is installed, pass an MCR Cleaning Card through the MCR slot to clean the
head.
You may also experience a build up of paper dust in the printer. This may be removed using a can of
compressed air or by vacuuming.
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