Mitsubishi XEN-PC apricot Owner's Handbook Manual page 56

Caring for the Apricot XEN-PC
The You should clean the read/write head and the capstan of the
Irwin FTD Irwin FTD frequently to prevent the accumulation of dust and
tape drive metallic particles.
If you notice read or write errors, or many bad blocks when
using the drive, be sure to clean the head and capstan thoroughly
before concluding that the drive or your tapes are defective.
The read/write head and the capstan are accessible through the
flip-up drive door, as shown below.
Although it is possible to use special kits to clean the drive,
Apricot recommends the use of 90% isopropyl alcohol and
several non-abrasive, lint free swabs, as follows:
4/4 XEN-PC OWNER'S HANDBOOK
1. Gently rub an alcohol-dampened swab against the
surface of the read/write head. If the swab becomes too
discoloured, use additional swabs until there is no
further discolouration.