Xerox 4635 Operator's Manual page 35

XEROX 4635 LASER PRINTING SYSTEM OPERATOR GUIDE
SYSTEM OVERVIEW OF THE 4635 LASER PRINTING SYSTEM
Figure 1-12. Open-reel tape drive control panel
1. Diag button. Sets or cancels diagnostic mode. (If DIAG
appears in the message display and a diagnostic program is
not active, pressing the Diag button cancels the diagnostic
mode. If DIAG does not appear in the message display,
pressing the Diag button sets the diagnostic mode.)
2. Ld/Onl(tens) button. Initiates loading; if loading is finished,
puts the tape drive online to the system controller. In
diagnostic mode, pressing this button increments the
program number appearing in the message display by tens.
3. Rwd/Unl(units) button. Rewinds the tape to beginning of
tape (BOT) if the tape drive is not online; when at BOT,
unloads the tape and opens the tape door. In diagnostic
mode, pressing this button increments the program number
appearing in the message display by single digits.
4. Reset(run/stop) button. Takes the tape drive offline and
cancels load and unload sequences. In diagnostic mode,
pressing this button starts a program or program stack if a
program is not running and stops the program or program
stack if a program is running.
5. Density(enter) button. Used to select the required
operating density or check the current density setting. In
diagnostic mode, this button is used to enter a program
number to the program stack.
6. Power switch. Powers the tape drive on (1) or off (0).
7. Message display. Displays tape drive messages and error
codes.
1-13