Toshiba B-850 User Manual

EO1-33029 

5.1 Cleaning

5- 1 

 
 
This chapter describes how to perform normal maintenance.  
To maintain the printer performance and quality print, please clean the 
printer regularly, or whenever media or ribbon is replaced. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

The following sections describe periodic cleaning of the unit.  
 

  Turn off the printer.  Open the Top Cover.  

  Press the Head Block Release Lever to release the Print Head Block. 

  Raise the Print Head Block and remove the ribbon. 

  Clean the Print Head Element with the supplied Print Head Cleaner. 

 
 
 
 
 
 
 
 
 
 
 
 

  Hold the Sensor Lift Tab and lift the Upper Sensor Ass’y. 

 Wipe the Feed Gap Sensor and Black Mark Sensor with a dry soft 

cloth. 

 Wipe the Platen with a soft cloth slightly moistened with ethyl 

alcohol. 

 
 

•

 

Be sure to disconnect the 
Power Cord before 
performing maintenance.  
Failure to do this may 
cause an electric shock. 

•

To avoid injury, be careful 

not to pinch or jam your 
fingers while opening or 
closing the cover and 
Print Head Block. 

•

 

The Print Head may 
become hot.  Do not 
touch the Print Head. 

•

 

Do not pour water directly 
onto the printer. 

 

•

 

Do not allow any hard 
objects to touch the print 
head or platen, as this 
may cause damage to 
them. 

•

 

Do not use any volatile 
solvent including thinner 
and benzene, as this 
may cause discoloration 
to the cover, print 
failure, or breakdown of 
the printer.  

•

 

Do not touch the print 
head element with bare 
hands, as static may 
damage the print head.  

•

 

Be sure to use the print 
head cleaner enclosed 
with this printer.  Failure 
to do this may shorten 
the print head life. 

 

Print Head Element 

Print Head Cleaner

(P/No.: 

24089500013)

Print Head 

 

Sensor Lift Tab 

Platen 

Feed Gap Sensor and  
Black Mark Sensor