Operating Cleanliness; Handling Discs - HP 9130K Service Manual

General Information
1-5
CAUTION
ONLY HP MEDIA IS APPROVED FOR USE IN THE 9130K
FLEXIBLE DISC DRIVE. USE OF OTHER MEDIA MAY RESULT
IN PREMATURE DISC FAILURE OR DAMAGE TO THE DRIVE.
HP MEDIA WILL ALWAYS HAVE AN/HP LABEL ON IT.
HP RIGOROUSLY TESTS EACH BATCH OF MEDIA FOR
ERROR RATE AND WEAR PERFORMANCE IN ADDITION TO
INITIAL VENDOR QUALIFICATION. ONLY IN THIS WAY CAN
HP ASSURE RELIABLE MEDIA PERFORMANCE.
THE USE OF NON-HP MEDIA FOR SINGLE USE APPLICA-
TlONS SUCH AS DATA INTERCHANGE WILL PROBABLY
NOT DAMAGE THE DRIVE OR MEDIA BUT, IF EXTENDED
USE IS ANTICIPATED, THE DATA MUST BE TRANSFERRED
TO HP MEDIA.
EXTENDED USE OF NON-HP APPROVED MEDIA WILL VOID
WARRANTY AND SERVICE CONTRACTS ON THE INSTRU-
MENTS.
Operating Cleanliness
To prevent potential damage or data loss, it is extremely important to maintain the cleanli-
ness of the disc and air within the disc drive. The disc drive should not be operated in an
environment in which dust, smoke, moisture, oil or chemical vapor or other foreign matter
are present. Also, be sure to strictly follow the disc handling gUidelines.
The critical elements involved in the read/write process are shown in Figure 1-2. The
read/write heads must maintain contact with the media during the read and write opera-
tions. Also shown are various types of contaminants and their size relationships. A contami-
nant particle. hard enough and of the right size may scratch either the oxide coating of the
disc or the head surface. Even if the particle is not hard enough to scratch, it may be hard
enough to lift the head from the disc surface and cause data errors.
Handling Discs
The flexible disc is basically maintenance free, but it is delicate and MUST BE HANDLED
CAREFULLY. Remember, the disc contains your valuable data and programs and should
be treated accordingly. A good rule of thumb is to treat the disc as you would a valuable
record album. Here are some specific DO's and DON'Ts to avoid loss of data or damage to
the discs.
EVEN A LITTLE CARELESSNESS IN DISC HANDLING CAN DRAMATICALLY REDUCE
THE LIFE OF THE DISC.