Amstrad Printers

Amstrad/Schneider Printer Models

CPC Series

DMP-1 (Seikosha GP500) more info

NLQ401 (GLP500) more info

DMP2000 more info
Same hardware as DMP3000, but in CPC-style black case, and without italics

DMP2160 more info
Fast version of DMP2000 (prints 160 CPS, instead of 105 CPS)

PC/PCW Series (gray)

PCW8256 printer (see also)
The printer that was bundled with the PCW8256

DMP3000 more info
Same hardware as DMP2000, but in PCW-style gray case, and with italics

DMP3160 more info
Fast version of DMP3000 (prints 160 CPS, instead of 105 CPS)

DMP3250di more info
Dual-interface version of DMP3160 (with centronics and rs232 ports)
Like the DMP3160, it prints only 160 CPS (not 250 CPS)

DMP4000 more info
Extra big wide printer (paper width 16 inch)

LQ3500 and LQ3500di more info
LQ3500di version with dual interface (centronics and rs232)
Letter Quality 24pin Dot Matrix Printer

LQ5000di more info
Letter Quality 24pin Dot Matrix Printer, wide carriage (16 inch paper)
With dual interface (centronics and rs232)

LD6000 more info
Laser Printer (from Amstrad GmbH, for german market only)
This is a rebadged Sharp printer that emulates an HP Laserjet II

Technical Specs

	DMP1	LQ401	DMP2000/DMP2160	DMP3000/DMP3160/DMP3250di	DMP4000 (wide)	LQ3500/LQ3500di	LQ5000di (wide)	LD6000 (laser)
Design	CPC	CPC	CPC	PCW (gray)	PCW (gray)	PC/PCW (gray)	PC/PCW (gray)	PC/PCW (gray)
Year	1984	?	DMP2000: 1985 DMP2160: ?	?	?	?	?	?
Maker	Seikosha	Centronics Data Computer Corp.	Amstrad?	Amstrad?	Amstrad?	Amstrad?	Amstrad?	Sharp
Distributor	Amstrad	Schneider	Amstrad/Schneider	Amstrad/Schneider	Amstrad/Schneider	Amstrad/Schneider	Amstrad only?	Amstrad GmbH
Family	Seikosha	?	Epson	Epson	Epson	Epson LQ	Epson LQ	HP Laserjet II
Pins	Unihammer (7 dot columns)	9pin	9pin	9pin	9pin	24pin	24pin	Laser
Processor	uPD8039LC	uPD7811G	uPD7811G	uPD7811G	uPD7811	uPD78310	uPD78310	?
BIOS ROM	2732 4kbyte EPROM (8DE-1)	27128 16kbyte EPROM	DMP2000/2160: 27128 16kbyte EPROM	DMP3000: 27256 32kbyte EPROM	27256 32kbyte EPROM	64Kbyte+512Kbyte EPROMs	3x ROM chips	?
Buffer RAM	2K	?	DMP2000:2K (upgradeable) DMP2160: 2K (see service manual)	DMP3000:2K (upgradeable) or 8K? (german DMP3000 service manual) DMP3160/3250di: 8K (see leaflet)	8K (see leaflet)	8K (see leaflet) plus 8K (char RAM?)	8K (see leaflet) total 4x8K (service manal)	?
Number of Control Codes	9	?	circa 92 codes	same as DMP2000/2160, plus one extra code	?	?	?	?
Print System	Impact Dot-Matrix	?	Impact Dot-Matrix	Impact Dot-Matrix	Wiredot-Matrix	Impact Dot-Matrix	Impact Dot-Matrix	Laser Printer
Print direction	Unidirectional (left to right)	?	?	?	Uni- and Bi-directional (selectable)	Uni- and Bi-directional (selectable)	Uni- and Bi-directional (selectable)	?
Print Speed	50 CPS	?	DMP2000: 105 CPS max DMP2160:160 CPS	DMP3000: 105 CPS (normal width) 52 CPS (double width) DMP3160/DMP3250di: 160 CPS	200 CPS (standard) 50 CPS (NLQ)	135-160 CPS	240-288 CPS	?
Printing Characteristics (vertical x horizontal)	7 x 5 (plus spacing)	?	9 x 9 (normal char) 9 x 10 (double width char) 9 x chosen amount (9 pin bit-image)	9 x 9 (normal char) 9 x 10 (expanded char) 9 x chosen amount (9 pin bit-image) 8 x chosen amount (bit-image)	9 x 9 (ASCII chars - table 1) 18 x 9 (ASCII chars - table 2) 12 x 11 (special chars - table 3.1 and 3.2) 24 x 11 (special chars - table 4.1 and 4.2) 8 x chosen amount (bit-image graphics)	?	?	?
Character Sets	128 (actually only 96) chars, 7bit ASCII, or international chars via DIP switches	?	96 characters ASCII + international character sets	96 characters ASCII + Italics + international character sets	ASCII-96, Italics-96, NLQ-96, NLQ Italics-96 International character sets-9, Special characters-132	?	?	?
Normal Character Size	?	?	?	2.1 (width) x 2.55 (height) mm	?	?	?	?
Horizontal Resolution	60 dpi	?	60 dpi (single density) 120 dpi (double density) 240 dpi (faked, printed as 120dpi) 72 (1:1 aspect ratio) 80,90 dpi (for 640/720 pix screenshots)	60 dpi (single density) 120 dpi (double density) 240 dpi (faked, printed as 120dpi) 72 (1:1 aspect ratio) 80,90 dpi (for 640/720 pix screenshots)	?	?	?
Vertical Resolution	63 dpi	?	72 dpi (one-pass) 216 dpi (three-pass)	72 dpi (one-pass) 216 dpi (three-pass)	?	?	?	?
Standard (Pica)	10 CPI	?	10 CPI/80 CPL	10 CPI/80 CPL	10 CPI/136 CPL	?	?	?
Mini (Elite)	-	?	12 CPI/96 CPL	12 CPI/96 CPL	12 CPI/163 CPL	?	?	?
Condensed	-	?	17 CPI/137 CPL	?	17 CPI/233 CPL	?	?	?
Double Width Standard	(?)	?	5 CPI/40 CPL	5 CPI/40 CPL	?	?	?	?
Double Width Mini	-	?	6 CPI/48 CPL	6 CPI/48 CPL	?	?	?	?
Double Width Condensed	-	?	8.5 CPI/68 CPL	8.5 CPI/68 CPL	?	?	?	?
Number of Columns	80 columns-character mode 480 dot columns-graphics mode	?	80 (Standard) 40 (Double) 132 (Condensed) 66 (Double Width Condensed)	80 (Standard) 40 (Double) 132 (Condensed) 66 (Double Width Condensed)	136 (standard) 233 (condensed)	?	?	?
Line Feed Rates	6 lines/inch-character mode 9 lines/inch-graphics mode 9 lines/inch-mixed mode	?	1/6 inch 1/8 inch 7/72 inch n/216 inch programmable n/72 inch programmable	1/6 inch 1/8 inch 7/72 inch n/216 inch programmable n/72 inch programmable	1/6 inch 1/8 inch 7/72 inch n/216 inch programmable n/72 inch programmable	1/6 inch 1/8 inch n/60 inch programmable n/180 inch programmable	1/6 inch 1/8 inch 7/72 inch n/60 inch programmable n/180 inch programmable n/216 inch programmable n/72 inch programmable	?
Line Feed Speed	10 lines/sec (at 6 lines/inch) 15 lines/sec (at 9 lines/inch)	?	DMP2000: 200 mS(1/6 inch) DMP2160: 160 ms	DMP3000: 200 mS(1/6 inch) DMP3160/3250di: 160ms, 1.04IPS	100 mS(1/6 inch), 1.6IPS	0.83IPS	0.83IPS	?
Paper Type	4.5 to 10 inches acceptable (pin to pin 4 to 9.5 inches)	?	4.5 to 10 inches fan-fold (tractor feed) 4 to 9.5 inches cut sheet or roll paper (friction feed)	4.5 to 10 inches fan-fold (tractor feed) 4 to 9.5 inches cut sheet or roll paper (friction feed)	Tractor feed (fan fold) - 3 to 16.5 inches (75 to 420 mm) Friction feed (cut sheet or roll) - 2 to 15.5 inches (50 to 395 mm)	10 Inch...	15 Inch...	DIN-A4 cut sheet
Number of Copies	Two including original (Thickness 0.15mm or less)	?	2 sheets (including original) 40 gsm pressure-sensitive paper train	2 sheets (including original) 40 gsm pressure-sensitive paper train	Original plus two	Original plus one	Original plus two	Original only
Interface	Parallel (Centronics compatible)	Parallel (Centronics compatible)	Parallel (Centronics compatible)	DMP3000/3160: Parallel (Centronics compatible) DMP3250di: additional RS232 interface	Parallel (Centronics compatible)	LQ3500: Parallel (Centronics compatible) LQ3500di: additional RS232 interface	LQ5000di: Parallel (Centronics compatible) plus RS232 interface	?
Ink Ribbon	Short lifetime...	?	Cassette (1 million characters per ribbon)	Cassette (1 million characters per ribbon)	?	?	?	Laser Toner...
Dimensions	447 (w) x 315 (d) x 114 (h)	?	380 (w) x 250 (d) x 100 (h) mm	400 (w) x 250 (d) x 100 (h) mm	24 (w) x 14 (d) x 5 (h) inches (600 x 350 x 120 mm)	17.5"(W)x16"(D)x4"(H) 440x400x100 mm	24"(W) x 15"(D) x 5"(H) 615x375x133 mm	?
Weight	4.8kg	?	4.2kg	4.2kg	9.5kg	5.9kg	7.5kg	?
Mains Supply	220-240V AC 50Hz	?	220-240V AC 50Hz	220-240V AC 50Hz	220-240V AC 50Hz	220-240V AC 50Hz	220-240V AC 50Hz	?

DMP2xxx/3xxx Printer Codes (sorted by number)

Hex	Decimal	ASCII	Type	Description
07	7	BEL	Misc	Beeper (produce beep sound, can be disabled via DIP-switch)
08	8	BS	Misc	Backspace (move print head left by one character unit, allowing to overwrite characters)
09	9	HT	Tab	Horizontal tab
0A	10	LF	Feed	Line Feed (move to next line)
0B	11	VT	Tab	Vertical Tab
0C	12	FF	Feed	Form Feed (move to next page)
0D	13	CR	Misc	Carriage Return
0E	14	SO	Text Style	Select double width for one line (unlike ESC W 0/1 continous)
0F	15	SI	Text Style	Select condensed mode
11	17	DC1	Misc	Select printer (online?) (FX80: DIP-switch related) (unclear if Amstrad supports or ignores this code)
12	18	DC2	Text Style	Cancel condensed mode
13	19	DC3	Misc	Deselect printer (offline?) (FX80: DIP-switch related) (unclear if Amstrad supports or ignores this code)
14	20	DC4	Text Style	Cancel one line double width mode (unlike ESC W 0/1 continous)
18	24	CAN	Misc	Cancel text in line (but not control codes)
1B 0E	27 14	ESC SO	Text Style	Double width for one line (duplicate) (not FX80, better use SO, not ESC SO)
1B 0F	27 15	ESC SI	Text Style	Select condensed mode (duplicate) (not FX80, better use SI, not ESC SI)
1B 21 n	27 33 n	ESC ! n	Text Style	Master select where n is a combination of: 0 Pica, 1 Elite, 4 Condensed, 8 Emphasized, 16 Double Strike, 32 Double Wide, 64 Italic, 128 Underline. Pica & Elite and Condensed/Emphasized are mutually exclusive.
1B 23	27 35	ESC #	Char Code	MSB control sequence cancel (=obtain MSB from Centronics Pin 9) (not on LX80)
1B 25 00 00	27 37 0 0	ESC % NUL NUL	Charset	Select normal character set (ROM) (star lc10 without ending NUL)
1B 25 01 00	27 37 1 0	ESC % SOH NUL	Charset	Select user defined char set (RAM) (star lc10 without ending NUL)
1B 26 00 ..	27 38 0 ..	ESC & NUL ..	Charset	Define user defined chars (params: first,last char (0..31 each), followed by "attr,d1..d11" per char, attr.bit7=descender flag (0=descend, 1=no descend, usuable only with 8bit printer port), attr.bit6-4=starting pos(0..7, attr.bit3-0=finishing pos i+4..11), d1..d11 are 8-pin columns) (must be enabled via DIP-switch!)
1B 2A 00 n1 n2 ..	27 42 0 n1 n2 ..	ESC * NUL n1 n2..	Graphics	Select 8pin single density graphics (same as ESC K) (60dpi) (480 pix per 8 inch) (n2:n1 dot columns, each 8pin, bit7=upper pin)
1B 2A 01 n1 n2 ..	27 42 1 n1 n2 ..	ESC * SOH n1 n2..	Graphics	Select 8pin double density graphics (same as ESC L) (120dpi) (960 pix per 8 inch)
1B 2A 02 n1 n2 ..	27 42 2 n1 n2 ..	ESC * STX n1 n2..	Graphics	Select 8pin double d.speed graphics (same as ESC Y) (120dpi source data being output at 60dpi) (960 pix per 8 inch)
1B 2A 03 n1 n2 ..	27 42 3 n1 n2 ..	ESC * ETX n1 n2..	Graphics	Select 8pin quad density graphics (same as ESC Z) (240dpi source data being output at 120dpi) (1920 pix per 8 inch)
1B 2A 04 n1 n2 ..	27 42 4 n1 n2 ..	ESC * EOT n1 n2..	Graphics	Select 8pin 640-pix CRT graphics (80dpi) (640 pix per 8 inch) (for CPC/EGA/VGA screenshots)
1B 2A 05 n1 n2 ..	27 42 5 n1 n2 ..	ESC * ENQ n1 n2..	Graphics	Select 8pin 576-pix plotter graphics(72dpi) (576 pix per 8 inch) (for 1:1 pixel aspect ratio)
1B 2A 06 n1 n2 ..	27 42 6 n1 n2 ..	ESC * ACK n1 n2..	Graphics	Select 8pin 720-pix CRT graphics (90dpi) (720 pix per 8 inch) (for Hercules screenshots)
1B 2D 30	27 45 48	ESC - 0	Text Style	Cancel underlining
1B 2D 31	27 45 49	ESC - 1	Text Style	Select underlining
1B 2F c	27 47 c	ESC / c	Tab	Select vertical tab channel (c=0..7)
1B 30	27 48	ESC 0	Feed	Select 9/72 inch aka 1/8 inch line spacing
1B 31	27 49	ESC 1	Feed	Select 7/72 inch line spacing
1B 32	27 50	ESC 2	Feed	Select 12/72 inch aka 1/6 inch line spacing
1B 33 n	27 51 n	ESC 3 n	Feed	Select n/216 inch line spacing (n=0..255)
1B 34	27 52	ESC 4	Text Style	Select italic mode (italics can be also used by setting bit7 of the character number)
1B 35	27 53	ESC 5	Text Style	Cancel italic mode
1B 36	27 54	ESC 6	Char Code	Enable printing of characters (128-159,255) (Italics?)
1B 37	27 55	ESC 7	Char Code	Cancel [ESC 6] command
1B 38	27 56	ESC 8	Misc	Disable paper out sensor
1B 39	27 57	ESC 9	Misc	Enable paper out sensor
1B 3A 00 00 00	27 58 0 0 0	ESC : NUL NUL NUL	Charset	Copy charset ROM into RAM (the three NULs are "for future expansion")
1B 3C	27 60	ESC <	Misc	Select unidirectional mode for one line (Move head home/parking)
1B 3D	27 61	ESC =	Char Code	MSB = 0 (not on LX80)
1B 3E	27 62	ESC >	Char Code	MSB = 1 (not on LX80)
1B 3F s n	27 63 s n	ESC ? s n	Graphics	Reassign graphics mode 's'=(K,L,Y or Z) to mode 'n'=(0..6) (default is ESC K=0, L=1, Y=2, Z=3) (these defaults can be reassinged here, eg. ESC K=6)
1B 40	27 64	ESC @	Misc	Initialize printer (Reset)
1B 41 n	27 65 n	ESC A n	Feed	Select n/72 inch line spacing (n=0..85)
1B 42 00	27 66 0	ESC B NUL	Tab	Clear Vertical tabs
1B 42 tabs 00	27 66 tabs 0	ESC B tabs NUL	Tab	Select up to 16 vertical tabs where tabs are ascending values from 1..255 ending with NUL
1B 43 00 n	27 67 0 n	ESC C NUL n	Feed	Select page length in inches (n=1..22)
1B 43 n	27 67 n	ESC C n	Feed	Select page length in lines (n=1..127)
1B 44 00	27 68 0	ESC D NUL	Tab	Clears all horizontal tables
1B 44 tabs 00	27 68 tabs 0	ESC D tabs NUL	Tab	Sets up to 32 horizontal tabs with ascending values 1-137. NUL or a value less than previous tab ends command.
1B 45	27 69	ESC E	Text Style	Select emphasized (bold) mode
1B 46	27 70	ESC F	Text Style	Cancel emphasized (bold) mode
1B 47	27 71	ESC G	Text Style	Select double strike mode (also an bold-alike effect)
1B 48	27 72	ESC H	Text Style	Cancel double strike mode (also an bold-alike effect)
1B 49 30	27 73 48	ESC I 0	Char Code	Disable Printable codes expansion (0-31,128-159) (not on LX80)
1B 49 31	27 73 49	ESC I 1	Char Code	Enable Printable codes expansion (0-31,128-159) (presumably excluding 27?) (not on LX80)
1B 4A n	27 74 n	ESC J n	Feed	Perform One-shot n/216 inch line feed (n=0..255)
1B 4B n1 n2 ..	27 75 n1 n2 ..	ESC K n1 n2 ..	Graphics	Single 8pin density graphics (60 dpi) (n2:n1 = num bytes following) (480 dots/line)
1B 4C n1 n2 ..	27 76 n1 n2 ..	ESC L n1 n2 ..	Graphics	Double 8pin density graphics (120 dpi) (960 dots/line)
1B 4D	27 77	ESC M	Text Style	Select elite width (12 cpi) (mini font)
1B 4E n	27 78 n	ESC N n	Feed	Select skip over perforation (n=1..127 lines)
1B 4F	27 79	ESC O	Feed	Cancel skip over perforation
1B 50	27 80	ESC P	Text Style	Cancel elite / Select pica width (10 cpi)
1B 51 n	27 81 n	ESC Q n	Misc	Set right margin (n=1..255 character columns) (this is WIDTH, counted from left margin)
1B 52 n	27 82 n	ESC R n	Charset	Select International character set where numeric 'n' is: 0 USA, 1 France, 2 Germany, 3 United Kingdom, 4 Denmark, 5 Sweden, 6 Italy, 7 Spain, 8 Japan, 9 Norway, 10 Denmark II, 11 Spain II, 12 Latin America. DMP2000/3160 do support 0..8, including Japan (according to user manuals). The default setting is DIP-switch selectable.
1B 53 30	27 83 48	ESC S 0	Text Style	Select superscript
1B 53 31	27 83 49	ESC S 1	Text Style	Select subscript
1B 54	27 84	ESC T	Text Style	Cancel superscript/subscript
1B 55 30	27 85 48	ESC U 0	Misc	Cancel unidirectional mode (faster, use bidirectional printing)
1B 55 31	27 85 49	ESC U 1	Misc	Select unidirectional mode (slower, left-to-right, more accurate on vertical lines)
1B 57 30	27 87 48	ESC W 0	Text Style	Cancel double width mode (continous) (unlike DC4: one line)
1B 57 31	27 87 49	ESC W 1	Text Style	Select double width mode (continous) (unlike SO: one line)
1B 59 n1 n2 ..	27 89 n1 n2	ESC Y n1 n2	Graphics	Select 8pin Hi-speed double den graphics (120 dpi)
1B 5A n1 n2 ..	27 90 n1 n2	ESC Z n1 n2	Graphics	Select 8pin Quad density graphics (240 dpi) (1920 dots/8"line)
1B 5E d n1 n2..	27 94 d n1 n2	ESC ^ d n1 n2	Graphics	Select 9 pin graphics mode number of columns = n1 + (n2 * 256) (d=density, 0=single, 1=double) (specs doesn't say if 2..6 do work too) (each column is a 2-byte pair: byte1.bit7..bit0=upper..lower, byte2.bit7=lowest, byte2.bit6..bit0=unused)
1B 62 c 00	27 98 c 0	ESC b c NUL	Tab	Clear vertical tabs in channel (c=0..7)
1B 62 c tabs 00	27 98 c tabs 0	ESC b c tabs NUL	Tab	Select up to 16 vertical tabs in channels (c=0..7) where tabs are ascending values from 1..255 ending with NUL
1B 69 00	27 105 48	ESC i 0	Misc	Cancel instant character printing (default, ie. print on CRLF etc.) (not on LX80)
1B 69 01	27 105 49	ESC i 1	Misc	Select instant character printing (printer each char immediately) (also scrolls printed text into view; when buffer empty) (not on LX80)
1B 6A n	27 106 n	ESC j n	Feed	Perform One-shot reverse linefeed (n/216 inch after buffer) (not on LX80)
1B 6C n	27 108 n	ESC l n	Misc	Set left margin (n=0..255 character columns)
1B 6D n	27 109 n	ESC m n	Charset	DMP3000/3160 only: Select charset (0=Epson, 1=IMB#1, 2=IBM#2) (Amstrad specific: not supported by Epson printers nor Epson clones nor DMP2000/2160)
1B 70 30	27 112 48	ESC p 0	Text Style	Cancel proportional mode (not on LX80 ?)
1B 70 31	27 112 49	ESC p 1	Text Style	Select proportional mode (not on LX80 ?)
1B 73 30	27 115 48	ESC s 0	Misc	Turn half speed mode off
1B 73 31	27 115 49	ESC s 1	Misc	Turn half speed mode on (purpose: noise-reduced silent printing)
1B 78 30	27 120 48	ESC x 0	Text Style	Select draft mode (LX80) (FX86e) (not FX80)
1B 78 31	27 120 49	ESC x 1	Text Style	Select NLQ mode (LX80) (FX86e) (not FX80)
7F	127	DEL	Misc	Delete last character from buffer (but not control codes) (works only when buffer isn't yet printer; printing usually starts on terminating lines via CRLF)

Character codes 00h-FFh...
- Codes 00h..1Fh and 7Fh contain control codes, but at least some of them can be also used as print-able characters; at least when enabled via ESC "I1" (according DMP2000 manual chap6/page7 example: chr(6) is a print-able (user defined) character. others like chr(27) are obviously not printable)
- Codes 20h..7Eh are ASCII characters (some changed in "international" modes)
- Codes 80h..9Fh and FFh act as mirror of control codes 00h..1Fh and 7Fh (this mirroring can be disabled via ESC "6")
- Codes A0h..FEh are italic versions of 20h..7Eh
The DMP2000 (and up) supports all Epson FX80 control codes, plus some additional ones:
- ESC SO and ESC SI (mirrors of SO and SI) (for some reason, these mirrors are often supported by Epson-clones like Star LC10, though they are rarely found in official Epson specs)
- ESC "x" n (select NLQ/Draft mode) (the original Epson FX80 didn't support NLQ, however, the ESC x command is found in other Epson models like LX80 and FX86e)
- ESC "m" n (select IBM charset) (this seems the be an Amstrad invention, supported only by DMP3000/3160, not supported by DMP2000/2160, nor by real Epson printers, nor by Epson-clones like Star LC10).
Some one-digit parameters (like on/off flags) may be recognized both is binary chr(0xh) as well as ASCII chr(3xh).

International Characters

23h

24h

40h

5Bh

5Ch

5Dh

5Eh

60h

7Bh

7Ch

7Dh

7Eh

0 - USA

[

]

{

}

1 - France

2 - Germany

3 - UK

[

]

{

}

4 - Denmark

5 - Sweden

6 - Italy

7 - Spain

}

DMP1: Italy chr(60h) is "`". DMP2XXX/3XXX: Italy chr(60h) is "ù". All other chars are same for all DMP versions.

DIP Switch Settings

DMP1 DIP Switches
	Function	Off = High = 1	On = Low = 0	Software
DS1-1	International characters Bit0	7=off:off:off=USA (default) 6=off:off:on=France 5=off:on:off=Germany 4=off:on:on=Italy 3=on:off:off=United Kingdom 2=on:off:on=Denmark 1=on:on:off=Sweden 0=on:on:on=Spain		Cannot be changed by software
DS1-2	International characters Bit1
DS1-3	International characters Bit2
DS1-4	CR Function	CR only (default)	CR & LF	Affects chr(0Dh)

NLQ401 DIP Switches
	Function	Off = High = 1	On = Low = 0	Software
DS1-1..8	Reserved	DS1 is not installed, DS1-1..7 floating (without pull-up), DS1-8 hardwired to GND (On)
DS2-1	Page length	11 inch (default)	12 inch	Can be also changed via ESC "C" (at least on Epsons, no idea if on NLQ401, too?)
DS2-2	International characters Bit0	0=on:on=France 1=on:off=Germany 2=off:on=United Kingdom 3=off:off=USA (default)		Can be also changed via software ?
DS2-3	International characters Bit1			Can be also changed via software ?
DS2-4	Zero character	Slashed (default)	Unslashed	Affects chr(30h)
DS2-5	1 inch skip perforation	Invalid/Disable (default)	Valid/Enable	Can be also changed via ESC "N"/ESC "O" (at least on Epsons, no idea if on NLQ401, too?)
DS2-6	Not used	-	- (default=on)	-
DS2-7	CR Function	CR+LF	CR only (default)	Affects chr(0Dh)
DS2-8	SLCT IN Exchange	External	Internally fixed (default)	?

DMP2000/DMP2160/DMP3000/DMP3160/DMP4000 DIP Switches
	Function	Off = High = 1	On = Low = 0	Software
DS1-1	International characters Bit0	0=USA, 1=France, 2=Germany, 3=United Kingdom, 4=Denmark, 5=Sweden, 6=Italy, 7=Spain		Can be also changed via ESC "R"
DS1-2	International characters Bit1
DS1-3	International characters Bit2
DS1-4	CR Function	CR only (default)	CR & LF	Affects chr(0Dh)
DS1-5	Paper out sensor	Enable	Disable	Can be also changed via ESC "8"/ESC "9"
DS1-6	Page length	11 inch	12 inch	Can be also changed via ESC "C"
DS1-7 DMP2xxx	Code Unit	8 units (MSB=CentronicsPin9)	On=7 units (MSB=0) "set this for Apple computers"	Can be also changed via ESC "#"/ESC "="/ESC ">"
DS1-8 DMP2xxx	Default Character Set	Epson Standard	Epson NLQ	Can be also changed via ESC "x"
DS1-7 DMP3xxx,DMP4000	Default Character Set Bit0	Charset (3=Epson Standard, 2=Epson NLQ, 1=IBM #1, 0=IBM #3)		Can be also changed via ESC "x" and ESC "m"
DS1-8 DMP3xxx,DMP4000	Default Character Set Bit1	Charset (3=Epson Standard, 2=Epson NLQ, 1=IBM #1, 0=IBM #3)		Can be also changed via ESC "x" and ESC "m"
DS2-1	Zero character	Unslashed	Slashed	Affects chr(30h)
DS2-2	Default skip perforation	Disable	Enable	Can be also changed via ESC "N"/ESC "O"
DS2-3	Buffer mode	Character	Graphics	?
DS2-4	Buffer mode	Character/Graphics (use DS2-3 setting)	Download (=UserDefCharset)	Must be On for ESC "&"
DS2-5	SLCT IN signal	Not sent	Automatically sent	?
DS2-6	Alarm beeper	Disable	Enable	Affects chr(07h) and/or Paper-Out alarm (?)
DS2-7	Default typeface	Bold off	Condensed & bold on	???
DS2-8	Default typeface	Condensed off	Bold on	???
DS2-9	Do not use
DS2-10	Do not use
DMP3250di Extra RS232 DIP-switches
DS3-1	Baudrate Bit0	0=9600, 1=4800, 2=2400, 3=1200, 4=600, 5=300, 6=200, 7=150 bps
DS3-2	Baudrate Bit1
DS3-3	Baudrate Bit2
DS3-4	Parity On/Off	Enable	Disable
DS3-5	Parity Even/Odd	Odd	Even
DS3-6	Data Bits	7bit	8bit
DS3-7	Stop Bits	1bit	2bit
DS3-8	Handshake Bit0	0=RTS(Ready/Busy), 1=Série(XON/XOFF), 2=Série(ETX/ACK), 3=Reserved)
DS3-9	Handshake Bit1
DS3-10	Interface	Centronics/Parallel	Serial/RS2322

LQ3500/LQ5000 DIP Switches
	Function	Off = High = 1	On = Low = 0	Software
DS1-1	International characters Bit0	0=USA, 1=France, 2=Germany, 3=United Kingdom, 4=Denmark, 5=Sweden, 6=Italy, 7=Spain		Can be also changed via ESC "R"
DS1-2	International characters Bit1
DS1-3	International characters Bit2
DS1-4	Page length	11 inch	12 inch	Can be also changed via ESC "C"
DS1-5	Skip perforation	Disable	Enable	Can be also changed via ESC "N"/ESC "O"
DS1-6	Alarm beeper	Disable	Enable	Affects chr(07h) and/or Paper-Out alarm (?)
DS1-7	Default Character Set	Standard/Draft	LQ Letter Quality	Can be also changed via ESC "x"
DS1-8	SLCT IN signal	Not sent	Automatically sent	?
DS2-1	Paper out sensor	Enable?	Disable?	Can be also changed via ESC "8"/ESC "9"
DS2-2	CR Function	CR only (default)	CR & LF	Affects chr(0Dh)
DS2-3	Zero character	Unslashed	Slashed	Affects chr(30h)
DS2-4	Reserved	-	-	-
DS2-5	Character Set	Epson	IBM#2	...
DS2-6	Unused	-	-	-
DS2-7	Auto loading	Enable	Disable	...
DS2-8	Reserved	-	-	-
LQ3500di/LQ5000di Extra RS232 DIP-switches
DS3-1	Baudrate Bit0	0=9600, 1=4800, 2=2400, 3=1200, 4=600, 5=300, 6=200, 7=150 bps default = 9600 = all off
DS3-2	Baudrate Bit1
DS3-3	Baudrate Bit2
DS3-4	Parity Even/Odd	Odd	Even
DS3-5	Parity On/Off	Disable	Enable
DS3-6	Data Bits	8bit	7bit
DS3-7	Handshake Bit0	3=off:off=Parallel/Centronics 2=on:off=Serial/XonOff 1=off:on=Serial RTS read/busy 0=on:on=Serial Etx/Ack
DS3-8	Handshake Bit1

User Manuals

DMP1 User Manual (english) (8407-61B)
NLQ401 User Manual (probably exists in german only) - Nilquader has one (will be scanned next some weeks when he gets access to a good scanner)
DMP2000 User Manual (English) (1985)
DMP2000 User Manual (French) (1985)
DMP2000 User Manual (Spanish)
DMP2160 User Manual (English) - ynot.zer0 has one (will be scanned on a rainy weekend)
DMP2160 User Manual (French) (1985)
DMP2160 User Manual (German)
DMP3000/3160 User Manual (English) - Terje has a "Amstrad DMP3000/3160 User Manual (English) 100 pages" (not yet scanned)
DMP3000/3160/3250di User Manual (French) (DMP3000/3160 manual from 1986) (plus brief 3250di info in preface)
DMP3000 User Manual (Spanish)
DMP3160 User Manual (German)
DMP3250di User Manual (English) - (none scanned yet)
DMP4000 User Manual (English) - (none scanned yet)
LQ3500(di) User Manual (English) - (none scanned yet)
LQ5000di User Manual (English) - (none scanned yet)
LD6000 User Manual (exists in german only) - (none scanned yet)
Epson FX80 and FX100 Reference - the original printers that the DMP2000-3250 (FX80) and DMP4000 (FX100) are compatible with
Epson FX80 and FX100 Tutorial

Service Manuals

DMP1 Service Manual (English) (none yet scanned)
NLQ401 Service Manual (German) (parts are both English & German) (HDS 2000/7/85)
DMP2000/DMP3000/DMP4000 Service Manual (English) (contains incomplete info: according to german manual, the DMP3000 should have more ROM/RAM)
DMP2000 Service Manual (German) (parts are both English & German) (HDS 2000/28/86)
DMP2160 Service Manual (German) (1100K hires scan) (parts are both English & German) (40839 HDS 64004/4000/18/88)
DMP2160 Service Manual (German) (520K lowres scan) (parts are both English & German) (40839 HDS 64004/4000/18/88)
DMP3000 Service Manual (German) (parts are both English & German) (HDS 60259/1500/04/87)
DMP3160 Service Manual (English) (none yet scanned)
DMP3250di Service Manual (English) (none yet scanned)
DMP4000 Service Manual (German) (parts are both English & German) (HDS 60964/2500/16/87)
LQ3500 Service Manual (English)
LQ3500 Service Manual (German) (parts are both English & German) (HDS 64005/4000/19/88)
LQ3500di Service Manual (English) (none yet scanned)
LQ5000di Service Manual (English)
LD6000 Service Manual (English) (none yet scanned)

Datasheets

uPD8039HLC Datasheet (HLC apparently means a High-speed/HMOS version, aside from that it's probably compatible with the LC version used in DMP1)
uPD7811G Datasheet (8bit CPU with 4096 byte ROM, 256 byte RAM, 44 I/O lines)
uPD78310A Datasheet

Leaflets

DMP-1 Advert (2-color) (ACU 8/9 1984), and DMP-1 Advert (4-color) (ACU 10/11 1984)
LQ3500di and LQ5000di Leaflet (English) (May 1988)
DMP4000 and DMP3250di Leaflet (English) (April 1988)
DMP3160/DMP3250di/DMP4000/LQ3500/LQ3500di/LQ5000di AMSTPRINT Leaflet (Norwegian)

ROM Images

Please dump the printer BIOS ROMs! Contained character sets & machine code may become useful for emulation & necrophile research...
If you do, please also take a photo of the printer PCB.

DMP1 ROM Image (none yet dumped)
NLQ401 ROM Image (this only the 16K EPROM image, not including the additional 4K ROM which is located inside of the CPU)
DMP2000 ROM Image (zipped rom file) (dumped from a spanish printer, but should be same for all countries) (this too, only the 16K EPROM, not including the additional 4K ROM which is located inside of the CPU)
DMP2160 ROM Image (none yet dumped)
DMP3000 ROM Image (none yet dumped)
DMP3160 ROM Image (none yet dumped)
DMP3250di ROM Image (none yet dumped)
DMP4000 ROM Image (none yet dumped)
LQ3500 ROM Image (none yet dumped)
LQ3500di ROM Image (none yet dumped)
LQ5000di ROM Image (none yet dumped)
LD6000 ROM Image (none yet dumped)

Weblinks

http://web.ukonline.co.uk/cliff.lawson/printers.htm - semi-official support for Amstrad printers
http://www.epson.com/cgi-bin/Store/support/SupportIndex.jsp?BV_UseBVCookie=yes&oid=-10236&infoType=Overview - Epson - support for old Impact-Printers