Xerox 4050 服务手册

SETTING UP PRINT JOB SOURCES

this by entering MTU 0 or MTU 1.  The unit number is
assigned to the tape drive at installation by a service
representative.  Check with your service representative or
your system administrator if you are unsure of the number
assigned to your 9-track magnetic tape drive.

CAUTION:  To avoid writing on an unprotected tape by mistake,
always enter your tape drive choice before beginning a job.

Press the Reset switch on the control panel to place the unit
offline to the system controller.

A tape may be unloaded either manually or automatically (by a
keyboard command).

1. Press the Reset switch on the control panel to take the

transport offline from the system controller.

2. Press the Unload switch.  The tape rewinds onto the file reel

until the end clears the fixed reel and the tape path.

Tape unloading is performed at low speed.  If there is a
considerable amount of tape on the fixed reel and you want
to unload it more quickly, first press the Load Rewind switch
and then the Unload switch.

Note:  Pressing only the Load Rewind switch causes the tape
to rewind at the faster rate, but it stops at the BOT marker
instead of completely clearing the tape path.

3. Open the door and press the large button in the center of

the supply hub to unlatch it and release the tape reel.
Remove the reel.

4. Close the door to prevent dust accumulation.

When the tape drive is online to the system controller, you can
perform the unload operation through the keyboard.  As a safety
precaution, the system ignores the TAPE UNLOAD command
while a job is printing.

1. Enter TAPE UNLOAD.  The tape rewinds completely back

onto the supply reel.

2. Remove the file reel by following steps 3 and 4 of the

“Unloading a tape manually” procedure, above.

Once you have unloaded and removed the tape from the
transport, press down the side of the Power switch marked 0.
(The Power switch is in the upper-right corner of the tape deck.)

3-12

XEROX 4050/4090/4450/4650 LPS OPERATOR GUIDE