Zebra MtP400 Operator's Manual - Cleaning

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 MtP400 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 Printek, or you may use cotton swabs moistened with isopropyl alcohol.  Please refer to Figure 

13 for the following instructions. 

Figure 13 - Printer Cleaning Areas 

Pick Roller 

(SL Only) 

MCR Slot 

Print Head

Black Mark 

Sensor 

Tear Bar 

Black Mark 

/Gap Sensor 

(LP Only) 

Platen Roller

•  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 MtP400 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 MtP400 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. 

To clean the exterior of the printer, turn the printer off and use a soft cloth moistened with a mild detergent. 

37