DMP-137  
(260-2887)                 Using The Control Panel    Faxback Doc. # 4009

Control Panel:

You can control many of the printer's functions directly from the DMP-137's
control panel, which consists of four keypad controls and four indicators.

KEYPAD CONTROLS (described from right to left)

         ┌──(NLQ Indicator)   ┌────(ON/OFF LINE Indicator)
         │            HIGH    │  ON/OFF
   CUT   ▄   NLQ      SPEED   ▄   LINE
 ┌──────┐  ┌──────┐  ┌──────┐  ┌────────────┐   ▄  POWER (Indicator)
 │ PARK │  │ FONT │  │ LF/FF│  │PITCH/MARGIN│
 └──────┘  └──────┘  └──────┘  └────────────┘   ▄  PAPER OUT (Indicator)
   SET       <---      --->

Indicators:

The following chart shows the meaning of the indicator's on the printer's
front panel.

┌────────────┬────────────────┬────────────────┬──────────────────────────┐
│INDICATOR   │ ON             │ OFF            │      FLASHING            │
├────────────┼────────────────┼────────────────┼──────────────────────────┤
│POWER       │ Power is on.   │ Power is off.  │      -----------         │
├────────────┼────────────────┼────────────────┼──────────────────────────┤
│ON/OFF LINE │ Printer is on  │ Printer is off │*The printer is in        │
│            │ line and ready │ line and not   │ pitch-set, margin-set,   │
│            │ to print.      │ ready to print.│ or font-set mode.        │
│            │                │                │                          │
├────────────┼────────────────┼────────────────┼──────────────────────────┤
│PAPER OUT   │ No paper in    │   -----------  │*An error condition has   │
│            │ the printer.   │                │ occurred. Turn the       │
│            │                │                │ printer off and then on  │
│            │                │                │ again.                   │
├────────────┼────────────────┼────────────────┼──────────────────────────┤
│NLQ         │ NLQ mode       │ Draft mode     │       -----------        │
│            │ NLQ italic mode│                │                          │
└────────────┴────────────────┴────────────────┴──────────────────────────┘

Below is a description of each function possible with the control panel:

ON/OFF LINE: The printer goes off line when a paper out error occurs. To
continue printing when this happens, press ON/OFF LINE. The printer goes on
line and prints one more line. Then it stops and goes off line again. If 
the printer buffer contains no data when you attempt to print one more 
line, the printer stays on line until you input one line of data to the 
printer.

Note: To select the Hex Dump mode, press ON/OFF LINE while turning on the
       printer.

PITCH MARGIN: To enter the pitch-set or margin-set mode, press and hold 
PITCH MARGIN button for one second while the printer is on line. The ON/OFF
LINE indicator flashes.

HIGH SPEED: Press HIGH SPEED while the printer is on line to enter the HS
(high-speed) mode. In this mode, the printer compresses the NLQ characters
to increase printing speed. To exit the HS mode, press HIGH SPEED again.

Note: The HS mode is primarily for normal character printing. If you send
graphics data or characters with some special attribute (superscript/
subscript, for example) in the HS mode, the print result might not be the
same as it would be in draft or NLQ mode. Also, if you try to print 
graphics intermixed with text while in HS mode, some of the text might 
print over some of the graphics.

LF/FF: In off-line mode, press LF/FF to advance the paper one line. Press
and hold LF/FF to begin a form feed.

--->: In the pitch-set, margin-set, or font-set modes, press ---> to move 
the print head to the right.

Note: To begin the self test, press ---> while turning on the printer.

NLQ: Press NLQ while the printer is on line to select desired print mode:
draft, NLQ, or NLQ italic. The print mode changes in the following sequence
as you press the button.

      Draft: Buzzer sounds once/NLQ indicator goes off.
        NLQ: Buzzer sounds twice/NLQ indicator lights.
 NLQ Italic: Buzzer sounds three times/NLQ indicator lights.

FONT: To enter the font-set mode, press FONT in the off-line mode.

<---: In the pitch-set, margin-set, or font-set modes, press <--- to move 
the print head to the left.

CUT: When you finish printing on fanfold paper, press CUT while the printer
is on line to advance the paper to the tear-off position. The paper 
advances about 0.8" (the length from the feeding position to the tear-off
position).  Press CUT again to retract the paper to the original position.

PARK: Press PARK in off-line mode to move fanfold paper to the parked
position. This feature lets you use single-sheet paper without removing the
fanfold paper from the printer.

SET: In the pitch-set, margin-set, or font-set modes, press SET to store 
the selected setting into memory.

(dtc/tmc-09/06/95)