LP 800  (260-2890)          Epson Control Codes        Faxback Doc. # 4122

This printer has three emulation modes:

* HP LaserJet III
* Epson FX-850
* IBM Proprinter XL24e

The LP 800 has different responses to software codes from the computer--one
set for each emulation. The response patterns, or modes, have many
similarities, but each has its own unique features.

┌─────────────────────────────┐
│EPSON FX-850 Emulation Mode: │
└─────────────────────────────┘

Printer Operation/Data Control Sequences:

DEC.           HEX.            MNEMONIC      FUNCTION

13             0D              CR            Carriage return
17             11              DC1           Selects printer
19             13              DC3           Deselects printer
24             18              CAN           Cancels-clear the buffer
27 25 n        1B 19 n         ESC EM n      Selects paper feed source.
                                              n=1 selects cassette tray,
                                              n=2 selects 2nd bin sheet
                                              feeder.

27 28 n        1B 1C n          ESC FS n      Selects emulation
                                               n=0 Function Reset
                                               n=1 HP Emulation
                                               n=3 EPSON Emulation
                                               n=4 IBM Emulation
                                               n=5 HPGL Emulation
                                               n=6 PDL Emulation

27 35          1B 23           ESC #          Cancels the MSB control
27 60          1B 3C           ESC <          Home head-ignored by this
                                               printer
27 61          1B 3D           ESC =          Sets the MSB of all incoming
                                               data to 0
27 62          1B 3E           ESC >          Sets the MSB of all incoming
                                               data to 1
27 64          1B 40           ESC @          Initializes the printer
27 85 n        1B 55 n         ESC U n        Unidirectional printing ignored
                                               by this printer
27 111 n       1B 6F n         ESC o n        Sets orientation
                                               n=0 sets portrait
                                               n=1 sets landscape
127            7F              DEL            Deletes a character input just
                                               before this code

Note: The control codes for paper out detection (ESC 8/ESC 9) and half-speed
printing mode (ESC a) are ignored by this printer.

Vertical Motion Control Sequences:

DEC.           HEX.            MNEMONIC      FUNCTION

10             0A              LF            Line feed
11             0B              VT            Vertical tab
12             0C              FF            Form feed
27 32 n        1B 20 n         ESC SP n      Adds n/120" space to each
                                              character  0<n<127
27 47          1B 2F           ESC / n       Selects the vertical tab channel
                                              used by VT
27 48          1B 30           ESC 0         Sets 1/8" line feed
27 49          1B 31           ESC 1         Sets 7/72" line feed
27 50          1B 32           ESC 2         Sets 1/6" line feed
27 51 n        1B 33 n         ESC 3 n       Sets n/216" line feed distance
                                              0<n<255
27 65 n        1B 41 n         ESC A n       Sets n/72" line feed distance
                                              0<n<85
27 66 n1..     nk 1B 42 n1..   nk ESC B n1.. Sets up to 16 vertical tab stops
..nk 0         ..nk 00         ..nk NUL       in channel 0  0<n<255, 1<k<16
27 67 n        1B 43 n         ESC C n       Sets the form length in lines
                                              1<n<127
27 67 0 n      1B 43 00 n      ESC C NUL n   Sets the form length in inches
                                              1<n<22
27 74 n        1B 4A n         ESC J n       Advances the paper by n/216 inch
                                              0<n<255
27 78 n        1B 4E n         ESC N n       Sets skip perforation to "n"
                                             inch
                                              0<n<127
27 79          1B 4F           ESC O         Cancels skip perforation
27 98 m n1..   1B 62 m n1..    ESC b m n1..  Sets up to 16 vertical tab stops
..nk 0         ..nk 00         ..nk NUL       in channel m
                                              0<n<255, 1<k<16, 0<m<7
27 106 n       1B 6A n         ESC j n       Performs a reverse line feed by
                                              n/216"

Horizontal Motion Control Sequences:

8              08              BS            Backspace
9              09              HT            Horizontal tab
27 36 n1 n2    1B 24 n1 n2     ESC $ n1 n2   Sets absolute print start
                                               position to
(n1+(n2x256))x1/60"
                                               from left margin
27 68 n1..     1B 44 n1..      ESC D n1..    Sets up to 32 horizontal tab
..nk 0         ..nk 00         ..nk NUL       stops    0<n<255, 1<k<32
27 81 n        1B 51 n         ESC Q n       Sets the right margin at nth
                                              column
27 92 n1 n2    1B 5C n1 n2     ESC \ n1 n2   Sets relative print position to
                                              (n1+(n2x256)/120 inch from
                                              current position
27 108 n       1B 6C n         ESC | n       Sets left margin in nth column

Note: The control sequence for justification (ESC a) is ignored by this
printer.

Printing Style Control Sequence:

DEC.           HEX.            MNEMONIC      FUNCTION

27 33 n        1B 21 n         ESC ! n       Selects a combination of
                                             printing
                                             characteristics by adding the
                                             desired values of n
                                             n=1: Elite
                                             n=4: Compressed
                                             n=8: Emphasized
                                             n=16: Double-strike
                                             n=32: Expanded
                                             n=64: Italic
                                             n=128: Underline

Note: The control sequences for NLQ font selection (ESC x and ESC k) are
ignored by this printer.

Print Size Commands:

DEC.         HEX.          MNEMONIC      FUNCTION

14            0E            SO        Selects expanded mode for one line only
15            0F            SI        Selects compressed printing
18            12            DC2       Cancels compressed printing
20            14            DC4       Cancels one line expanded mode set by
                                      SO
27 77         1B 4D         ESC M     Selects 12 CPI printing
27 80         1B 50         ESC P     Selects 10 CPI printing
27 87         1B 57 n       ESC W n   Selects or deselects expanded mode
                                       n=1 starts expanded mode
                                       n=0 ends expanded mode
27 112        1B 70 n       ESC p n   Sets proportional character printing
                                       n=1 selects proportional character
                                       printing
                                       n=0 cancels proportional character
                                       printing

Print Enhancement Control Sequences:

DEC.          HEX.          MNEMONIC  FUNCTION

27 45 n       1B 2D n       ESC - n   Underlining n=1 starts, n=0 ends
27 52         1B 34         ESC 4     Selects italic character mode
27 53         1B 35         ESC 5     Ends italic character mode
27 54         1B 36         ESC 6     Expands the code area of printable
                                       character
27 55         1B 37         ESC 7     Cancels ESC 6
27 69         1B 45         ESC E     Selects the emphasized printing mode
27 70         1B 46         ESC F     Cancels the emphasized printing mode
27 71         1B 47         ESC G     Sets double-strike printing
27 72         1B 48         ESC H     Stops double-strike printing
27 83 n       1B 53  n      ESC S n   Sets superscript/subscript
                                       n=1 selects subscript printing
                                       n=0 selects superscript printing
27 84         1B 54         ESC T     Ends superscript and subscript printing
27 119 n      1B 77 n       ESC w n   Selects/deselects the double-height
                                       printing mode
                                       n=1 selects double-height
                                       n=0 ends double-height

Note: The control sequences for font downloading (ESC %, ESC & and ESC:) are
ignored by this printer.

Character Table Control Sequences:

DEC.          HEX.          MNEMONIC      FUNCTION

27 73 n       1B 49 n       ESC I n       Printable code area expansion
                                           n=1 makes codes 0-31 and 128-159
                                           printable
                                           n=0 cancels expansion
27 82 n       1B 52 n       ESC R n       Selects international characters
                                           n=0: U.S.A.
                                           n=1: France
                                           n=2: Germany
                                           n=3: U.K.
                                           n=4: Denmark
                                           n=5: Sweden
                                           n=6: Italy
                                           n=7: Spain
                                           n=8: Japan
                                           n=9: Norway
                                           n=10: Denmark II
                                           n=11: Spain II
                                           n=12: Latin America
27 116        1B 74         ESC t         Selects character code table
                                           n=0 selects Italic character table
                                           n=1 selects Graphic character
                                           table

Graphic Image Printing Control Sequences:

DEC.          HEX.          MNEMONIC      FUNCTION

27 42 m n1    1B 2A m n1    ESC * m n1    Selects various graphic mode
n2 d1...dk    n2 d1...dk    n2 d1...dk     m=0: Single density
                                           m=1: Double density double speed
                                           m=2: Double density
                                           m=3: Quadruple Density
                                           m=4: CRT 1 80 dots/inch
                                           m=5: Plotter 72 dots/inch
                                           m=6: CRT 2 90 dots/inch
                                           m=7: Double density plotter
                                                144 dots/inch 
                                                k=n1 (LSB) + (256 x n2 (MSB))
27 63 n m     1B 3F n m     ESC ? n m     Reassign the density of the bit 
                                           image mode specified by K,L,Yor Z.
                                           n="K","L","Y" or "Z". m is a mode 
                                           number as in ESC * command.
27 75 n1 n2   1B 4B n1 n2   ESC K n1 n2   Normal-density 8-pin bit image mode
d1...dk       d1...dk       d1...dk        60-dpi k=n1 (LSB)+(256 x n2 (MSB))
27 76 n1 n2   1B 4C n1 n2   ESC L n1 n2   Double-density 8-pin bit image
d1...dk       d1...dk       d1...dk        mode 120-dpi  k=n1 + (256 x n2)
27 89 n1 n2   1B 59 n1 n2   ESC Y n1 n2   Double-density 8-pin bit image
d1...dk       d1...dk       d1...dk        mode 120-dpi (horizontally aligned
                                           dots cannot be printed)
                                           k=n1 + (256 x n2)
27 90 n1 n2   1B 5A n1 n2   ESC Z n1 n2   Quadruple-density 8-pin bit image
d1...dk       d1...dk       d1...dk        mode 240-dpi k=n1 + (256 x n2)
27 94 m n1    1B 5E m n1    ESC ^ m n1    Selects 9-pin graphic mode.
n2 d1...dk    n2 d1...dk    n2 d1...dk     m=1: Double density
                                           m=0: Single density 
                                           k=n1 (LSB) + (256 x n2 (MSB))

(dtc-08/06/93)
(smc-09/14/93)