Epson ML 3320/3321 Specifications

All specifications are subject to change without notice.MICROLINE 3320/3321PRINTERProduct Specifications¡Approval

3 – 22) VibrationOperating: 0.3G (5 to 150 Hz) or less (except at resonant frequency)Non-operating: 1G (5 to 150 Hz) or less (except at resonant frequ

12 – 5811) Typestyles—select(a) Code: ESC k n(b) Compatibility: EPS FX(c) Function:Select a NLQ typestyle.(d) Range:• n = 00H, 30H, 80H, B0H Courier•

12 – 59• The character patterns are stored in the volatile RAM.• Both Utility and NLQ Courier ROM characters are “copied” to DLL RAM.14) Custom font—c

12 – 60• Character locations that can be defined:1. normal operation DLL(20)H — (7F)H 96 characters(A0)H — (FF)H 64 charactersTotal 160 characters2. w

12 – 61• If less than 256 characters are to be defined, all character locations (address) mustbe consecutive from the starting character.• Downloading

12 – 62• al = Attribute #1’s bit definition (bits 7 – 0)...b7 = 0 = ascender, dot rows 1 – 81 = descender, dot rows 2 – 9b6 – b2 = ignored— Utility DL

12 – 63(e) Additional details:• This command is composed of 2 parts ...Part 1, which is “ESC = c1 c2 m n” is only sent once, while part 2, “a1 a2 d1 .

12 – 64(e) Out of range:• If n does not equal the above values this command is ignored.17) Character pitch—select 10 CPI(a) Code: ESC P(b) Compatibili

12 – 65(c) Function:10 CPI, 12 CPI, or 15 CPI mode: 12 characters per inch17.1 CPI or 20 CPI mode: 12 or 20 characters per inch (in accordance with th

12 – 66<Epson>When the printer receives this command in the following CPI modes, the commandsets the character pitch as given below.10 CPI mode:

12 – 6724) Character pitch—cancel condensed (17, 20 CPI)(a) Code: DC2(b) Compatibility: EPS FX(c) Function:• Cancels condensed pitch, returns pitch to

3 – 32) Parallel interface signalsPin No. Signal Direction Description1 DATA STOROBE To printer Sample input data when changing from lowlevel to high

12 – 6827) Character pitch—select 17.1 CPI(a) Code: GS(b) Compatibility: ML(c) Function:Select 17.1 CPI (206 DPI) character pitch.(d) Details:• Since

12 – 69total cellAdditional blank dot colums.Pre-defined 3 blank dot colums (e) Out of range:The command will be ignored.(f) Details:• If the do

12 – 703/144 inch for 12 CPI3/180 inch for 15 CPI3/206 inch for 17.1 CPI3/240 for 20 CPI• Maximum inter character clearance:n = 11 (max. value)14/120

12 – 71• The command to set clearance between characters is executed immediately uponrecognition by the printer.• This command is not effective for Gr

APPENDIX A – 1APPENDIX ABIT IMAGE GRAPH IS — DOT DENSITY(No adjacent dots allowed)1/144 inchDouble speedquad densityDouble speeddouble densityDoubleSi

APPENDIX B – 1×–×–––––––––––––––––––––––––––––––––––––––––––––––––×––××××××××××––––––××–

APPENDIX B – 2Note 1: The integral (F4H, F5H) character does not modify the following itemsSuperscript/subscriptItalicsOverscoreNote 2: The underline

APPENDIX B – 3––––––––––––––––––––––––––––––––––––×××××××––––––––×––––––××××––×××–––×××–––×––×12

APPENDIX B – 4×––––––––––––––––––––––––––×××××××××––––––×××××××–– –×××–––×××–––×1345781234678×–Underline10 CPI12 CPI1

APPENDIX C – 1APPENDIX CCOMMAND SUMMARYASCII Code Function Name CompatibilityHORIZONTAL CONTROLCR CARRIAGE RETURN – EXECUTE EPS FX/IBM III/MLBS BACKSP

3 – 43) Parallel interface levelsHigh level: Driver: + 2.4V to + 5VReceiver: + 2.0V to + 5VLow level: Driver: 0V to + .4VReceiver: 0V to + .8V4) Paral

APPENDIX C – 2ASCII Code Function Name CompatibilityVERTICAL CONTROLESC 2 LINE SPACING – EPS FXSELECT FIXED AMOUNT – 1/6 INCHESC 6 LINE SPACING – MLSE

APPENDIX C – 3ASCII Code Function Name CompatibilityESC G n1 n2 FORM LENGTH – MLDEFINE AMOUNT – BY 1/2 INCHESC F n1 n2 FORM LENGTH – MLDEFINE AMOUNT –

APPENDIX C – 4ASCII Code Function Name CompatibilitySYMBOL SETSESC 7 IBM CHAR SET I – SELECT IBM IIESC 6 IBM CHAR SET II – SELECT IBM IIIESC\n1 n2 IBM

APPENDIX C – 5ASCII Code Function Name CompatibilityESC 2 CUSTOM FONT – MLSELECT UTL DLL FONTESC 7 CUSTOM FONT – MLSELECT SYNTHETIC – NLQ DLL FONTESC

APPENDIX C – 6ASCII Code Function Name CompatibilityESC P n CHARACTER CELL SIZE – IBM IIIPROPORTIONAL WIDTH – ON/OFFESC Y CHARACTER CELL SIZE – MLPROP

APPENDIX C – 7ASCII Code Function Name CompatibilityESC M SUBSCRIPTS – OF MLESC J SUPERSCRIPT – ON MLESC K SUPERSCRIPT – OFF MLESC % G SLANT – ON IBM

APPENDIX C – 8ASCII Code Function Name CompatibilityETX SO BIT IMAGE GRAPHICS – MLEXECUTE LF W/CR –GRAPHICS AMOUNTETX DC4 BIT IMAGE GRAPHICS – MLEXECU

APPENDIX C – 9ASCII Code Function Name CompatibilityESC } NUL PRINTER INITIALIZATION EPS FX/IBM III/MLESC [K Ln Hn Init Id Parm 1 SET INITIAL CONDITIO

HP, LaserJet and PCL5e are trademarks of Hewlett-Packard Co.

T-520249 8-96 Printed in JapanOki Systems (Danmark) a.s.Park Alle 382DK-2625 VallensbaekDenmarkTel : 436 66500Fax : 436 66590Oki Systems (France) S.

4 – 14. PHYSICAL CHARACTERISTICS4. 1 PrintheadPrint method: Impact dot matrixNumber of dot wires: 9Dot wire diameter: 0.013 inch (0.34 mm)4.2 Printer1

4 – 213.58 inches (345 mm)15.91 inches (404 mm)21.73 inches (552 mm)1.50 inches (38 mm)5.79 inches (147 mm)ML33212) WeightML3320 Turbo: 14.33 Ib (6.5

4 – 34.3 Options(1) Interface boardRS-232C serial interface board (communications rate up to 19.2 KBPS)(2) Tractor feed unit with acoustic cover for P

5 – 1Character Pitch (CPI)Model Print Mode10 CPI 12 CPI 15 CPI 17.1 CPI 20 CPIML3320ML, EPSON, IBM UTILITY960 1,152 1,440 1,646 1,920ML3321 1,632 1,9

5 – 25.5 Line Feed Pitches6 LPI 0.167 inch (4.23 mm)8 LPI 0.125 inch (3.175 mm)A variable line feed pitch of n/216 inch (integer n: 0 ≤ n ≤ 255) can a

6 – 16. PRINTER PERFORMANCE6.1 Print SpeedPrint ModeCharacter Pitch10 CPI 12 CPI 15 CPI 17. 1 CPI 20 CPIHSD 387 CPS 387 CPS 387 CPS 387 CPS 387 CPSNLQ

6 – 23) Near letter quality modeModel Characters/LineCharacater Pitch10 CPI 12 CPI 15 CPI 17.1 CPI 20 CPI136 29 — — — —163 — 24 — — —ML3321 204 — — 19

iCONTENTS1. INTRODUCTION...1-12. CONFI

7 – 17. MEDIA SPECIFICATIONS7.1 Cut-Sheet PaperStandard size: 8-1/2 inches (wide) × 11 inches (long) for the U.S. A4 size (210mm (wide)× 297 mm (long)

7 – 27.5 CardWeight: 120 Ib (163 g/m2) or lessThickness: 0.008 inch (0.20 mm) or lessSize: 5 × 8 inches (separated)Media supply: Bottom paper feed onl

8 – 18. PAPER FEED SPECIFICATIONS8.1 Paper Feed Methods/PathsWhen the friction feed method is used, the paper must be fed from rear.ML3320 ML3321(a) F

9 – 19. RIBBON SPECIFICATIONSGenuine OKI cartridge ribbon Ink color: Black Ribbon life: Approximately 3 million characters (Re-inking cartridge)

10 – 110. RELIABILITY1) MTBF (mean time between failures)10,000 hours of power-on timePage density: 35%Duty cycle: 25%2) Printhead life200 million cha

11 – 111. OPERATOR CONTROL11.1 Operator Control Switches and Indicator LightsLocations of Switches and Indicator Lights ML3320/3321 OPERATOR PANEL11

11 – 2The Functions of Switches (1/2) (While pressing the SHlFTswitch) (2/2)MODESWPrint Mode Hex Dump ModeMenuModeTestModePower On ModeLimited

11 – 3The Functions of Switches (2/2) (Without pressing the SHlFTswitch)*4: When no paper is set, the printer load position is set to factory default.

11 – 411.3 Indicator Light Functions11.3.1 Primary FunctionsLamp Color FunctionSEL Amber Lights when the printer enters the select state, and startsbl

11 – 511.4 Alarm/Error IndicationsThe following table summarizes LED indications during alarm states.11.4.1 Recoverable AlarmsLEDAlarmAlarm Menu SEL Q

ii8. PAPER FEED SPECIFICATIONS ...8-18.1 Paper Feed Methods/Paths.

11 – 6• Fatal alarmsLEDAlarmAlarm Menu SEL Queit 10CPI 12CPI 15CPI 17CPI 20CPI PROP HSDUTILITYNLQFatal alarmsPrinterinternal RAMS-I/F internalRAMS-I

11 – 711.5 Secondary Switch Functions11.5.1 MENU1) OverviewFeatures selected in MENU mode become the default features for the printer each timeit is p

11 – 8Group Item SetsPrinter Control Emulation Mode IBM PPR *Epson FXMLFont Print Mode Utility *NLQ CourierNLQ GothicDRAFTDRAFT Mode HSD*SSDPitch 10CP

11 – 9Group Item SetsSymbol Sets Code Page USA*Canada FrenchMultilingualPortugalNorwaySlashed Letter 0 Turkey No* Greek_437 Yes Greek_869Greek

11 – 10Group Item SetsRear Feed Page Length 11"11 2/3"12" *14"17"3"3.5"4"5.5"6"7"8"8.5&quo

11 – 11Group Item SetsTop Feed Wait Time 500ms1 sec *2 secPage Length Control by Actual Page Length *by Menu SettingSet-Up Graphics Bi-directional *Un

11 – 12Line Spacing 6 LPI *8 LPIBottom Margin Valid *InvalidPage Length 11"11 2/3" *12"14"16.57"3.5"4"5.5"6&qu

11 – 13Group Item SetsCSF Bin 1 Line Spacing 6 LPI *8 LPIBottom Margin Valid *InvalidPage Width 4) 11) 13.6" *8"Page Length 11"11 2/3&q

11 – 1411.5.2 Sample Print Self-test1) StartDepress and hold the LF switch, while moving the power switch to the “on “ position.2) StopDepress SEL swi

11 – 155) Operator panel displayWhile in the Self Test mode ...(a) MENU mode LED = off(b) SEL LED = off(c) CPI LEDs = change when CPI changes(d) Print

iiiAPPENDIX A BIT IMAGE GRAPHICS—DOT DENSITY ...A-1APPENDIX B PRINT MODES/FEATURES COMBINA

11 – 16(c) Number of Characters Printed per LineCPI Narrow Wide Note 1)10 80 136 (80)12 80 136 (80)17.1 80 136 (80)20 80 136 (80)Note 1) When the Page

11 – 17(d) ASCII equivalent of incoming data00H — 1FH = ASCII “period”20H — 7EH = normal ASCII equivalent7FH = ASCII “period “80H — 9FH = ASCII “perio

11 – 183) Details(a) After the 1st piece of cut-sheet paper is fed out of the printer (by normal printingoperation) the 2nd piece of cut sheet paper c

12 – 112. COMMAND DESCRIPTION12.1 Horizontal Control1) Carriage return—execute(a) Code: CR(b) Compatibility: EPS FX/IBM III/ML(c) Function:Initiate pr

12 – 2(d) Details• If a multipass character (ex. double height characters) is in the print buffer, whenBS is executed, the paper is reverse feed back

12 – 3(e) Out of Range:This command will be ignored if n equals any other values except for the valuesmentioned above.(f) Additional details:• Short-L

12 – 4<=<=<=<=<=(e) Out of range:Any position specified beyond the right margin is ignored.(f) Additional details:• Dot position = (n1

12 – 5(c) Function:Moves the next print position by a number of dot columns (specified by n1n2n3n4)to the right from the current print position.(d) Va

12 – 6<=<=<=<=(g) Additional details:• Number n1n2n3n4 is a 4-digit decimal number. Since all digits must be defined,any number that does

12 – 7<=<=<=<=<=<=<=<=<=<=<=<=(d) Range:• The number n1 is the low byte and n2 is the high byte in the dot positio

1 – 11. INTRODUCTIONThe Microline 3320/3321 (ML/Epson/lBM compatible) model printer is a highly reliable, rugged,high performance desk-top serial dot

12 – 8EpsonCPI Wide Narrow10 135 7912 163 9515 203 11917.1 233 13720 255 159IBMCPI Wide Narrow10 136 8012 164 9615 204 12017.1 234 13820 255 160(e) Ou

12 – 9• This command is disregarded while nk-1 ≤ nk or the printer encounters a nullcharacter. A maximum of 32 tab stops can be set. If there is no nu

12 – 10(d) Range:• VariablesASCII Decimal HexadecimalX1 0 – 9 48 – 57 30 – 39Y1 0 – 9 48 – 57 30 – 39Z1 0 – 9 48 – 57 30 – 39m (number of tabs) = 0–16

12 – 11(c) Function:Clear all previously defined H-tabs and define up to 16 new horizontal tab stoppositions from the left-most physical print positio

12 – 1221) Horizontal tab—execute(a) Code: HT(b) Compatibility: ML(c) Function:Advance from the current print position to the next Horizontal Tab posi

12 – 13• The left margin will remain at value set unless reset by some software code orthe printer is turned off.• Input of the ESC/ code with a valid

12 – 14<=<=<=<=(d) Range:• The ranges for n1 and n2 are 1 n1 2552 n2 255n1< n2(e) Out of range:• If n1 or n2 = 0 then the curre

12 – 15• n =3 Full justification puts extra spaces where necessary so that both the left andright margins are aligned.• Full justification (n = 3) is

12 – 1627) Margins—right margin(a) Code: ESC % R n1 n2 n3 n4(b) Compatibility: ML(c) Function:• Define the logical right-most printing position limita

12 – 1712.2 Vertical Control1) Line spacing—select fixed amount—1/6 inch(a) Code: ESC 2(b) Compatibility: EPS FX(c) Function:Set the line spacing to 1

2 – 1 2. CONFIGURATION 2.1 Standard Printer ConfigurationThe ML3320/3321 ML/EPSON/IBM1) Printer mechanism2) Power & Control board3) Driver board (

12 – 182) Line spacing—select fixed amount—1/6 inch(a) Code: ESC 6(b) Compatibility: ML(c) Function:Set the line spacing to 1/6 inch units (6 LPI).(d)

12 – 193) Line spacing—select fixed amount—1/8 inch(a) Code: ESC 0(b) Compatibility: EPS FX/IBM III(c) Function:Set the line spacing 1/8 inch units.(d

12 – 204) Line spacing—select fixed amount—1/8 inch(a) Code: ESC 8(b) Compatibility: ML(c) Function:Set the line spacing to 1/8 inch units (8 LPI).(d)

12 – 215) Line spacing—select fixed amount—7/72 inch(a) Code: ESC 1(b) Compatibility: EPS FX/IBM III(c) Function:Set the line spacing to 7/72 inch uni

12 – 228) Line spacing—define amount—n/216 inch(a) Code: ESC 3 n(b) Compatibility: EPS FX/IBM III(c) Function:Sets line spacing to n/216 inch.(d) Rang

12 – 23(f) Related functions:• This command does not clear the elongated character mode (double width printedcharacter) selected by ESC SO or SO code.

12 – 24(f) Details:• If n1 = 0 the line spacing will be set to a distance zero, upon execution of a LF.• If the line spacing is set to zero (n1 = 0),

12 – 2516) Line feed—execute forward LF with CR(a) Code: LF(b) Compatibility: ML(c) Function:Initiate printing action; print data in the print buffer

12 – 2620) Line feed—execute direct skip(a) Code: ESC VT n1 n2(b) Compatibility: ML(c) Function:• Initiate printing action; print data in the print bu

12 – 27(e) Out of range:• If n = n > 127 (Epson), bit 7 is cleared and set that value as is.(f) Additional details:• This command does not affect v

2 – 2Font Print mode UtilityDRAFT mode HSDPitch 10CPIProportional Spacing NoStyle NormalSize SingleSymbol Sets Character Set Set 2Language Set ASCIIZe

12 – 28(d) Range:• VariableASCII Decimal Hexadecimaln1 0 – 9 48 – 57 30 – 39n2 0 – 9 48 – 57 30 – 39Argumentn1 n2 = 00 – 99(e) Out of range:The comman

12 – 29(c) Function:• Initiate printing action; print data in the print buffer by causing a print block change,feed the paper the defined form length

12 – 30• When the current line spacing is defined by ESC ( (8 LPI) or ESC % 9 n, (n/144LPI) the auto skip function is performed when the remaining am

12 – 3129) Top of form—define(a) Code: ESC 4(b) Compatibility: IBM III(c) Function:Logically “mark” the current vertical print position.(d) Additional

12 – 32(e) Out of range:<Epson>• The n value has to be less than the current form length.If n is equal to or greater than the form length, this

12 – 3331) Margins—cancel bottom margin (auto skip)(a) Code: ESC O(b) Compatibility: EPS FX/IBM III(c) Function:Cancel Skip-Over Perforation.(d) Addit

12 – 3432) Vertical tabs—select channel(a) Code: ESC / n(b) Compatibility: EPS FX(c) Function:Select a vertical tab channel, specified by n.(d) Range:

12 – 35(g) Related functions:• ESC B nul will reset the TAB setting.34) Vertical tabs—define tab stops in channels(a) Code: ESC b n m1 m2 ... mk NUL(b

12 – 36(d) Range:• Variable ASCII DEC HEXn1 (Channel Number) = 1 – < 49 – 60 31 – 3C• ArgumentTAB STOP (argument) = 1 to 54 occurrence• Repeating c

12 – 37(e) Out of range:The command will be ignored.(f) Logical limitation:If a channel number which is not defined in the VFU load sequence, is speci

2 – 3Serial I/F Parity NoneSerial Data 7/8 Bits 8 BitsProtocol Ready/BusyDiagnostic Text NoBusy Line SSD-Baud Rate 9600 BPSDSR Signal ValidDTR Signal

12 – 3840) Paper-out detection override—enable/disable(a) Code: ESC E n(b) Compatibility: ML(c) Function:• Enable/disable the paper out detection over

12 – 39(d) Details:• This command starts printing and performs carriage returns regardless of the papermode.• If paper is already loaded, the printer

12 – 4045) Cut-sheet feeder—dual bin CSF bin select(a) Code: ESC EM n(b) Compatibility: ML(c) Function:• Select a sheet bin on Dual Bin CSF(d) Details

12 – 4147) Composite command for setting line feed quantityESC DLE H Pno A1 A2 P1 P2 P3Code: 1B 10 48 in hexadecimal 27 16 72 in decimalFunctions:(1)

12 – 42(6) When an even value is specified for the A2 parameter (to set parameters of this command),the following items are enabled:(a) The specified

12 – 4312.3 Symbols Sets1) IBM char set 1—select(a) Code: ESC7(b) Compatibility: IBM III(c) Function:Select the IBM Character Set 1.(d) Details:• See

12 – 445) Symbol set—OKIDATA-standard—select(a) Code: ESC ! 0(b) Compatibility: ML(c) Function:Select the OKIDATA—Standard Symbol set.(d) Details:• Re

12 – 45— 8 Bit ModeLocation Description count00H – 1FH ASCII Control Codes 3220H – 7FH ASCII Printable Characters 9680H – FFH OKIDATA Block Graphics 1

12 – 46(f) Details:• Definition of value of “n”.ASCII Hex Dec LANGUAGE Hex Dec Code pageNULL 00 0 American 15 Cyrillic II-866SOH 01 1 French 16 Polska

12 – 479) International language character set – select(a) Code: ESC ! n(b) Compatibility: IBM III/ML(c) Function:Select International Language charac

3 – 13. GENERAL SPECIFICATIONS3.1 Power Requirements1) Input powerSingle-phase ACVoltage: 120 VAC +5.5%, –15%230/240 VAC +10%, –14% Frequency: 50/60H

12 – 4810) Code page set—select(a) Code: ESC [ T Ln Hn NUL NUL Hcp Lcp NUL(b) Compatibility: IBM III/ML(c) Function:Selects the code page.(d) Range:•

12 – 49ID (Hcp, Lcp) Code Page437 USA774 Baltic 774850 Multilingual852 East Europe Latin II-852855 Cyrillic I-855857 Turkey 857860 Portugual862 Hebrew

12 – 5011) Slant/graphics character table—select(a) Code: ESC t n(b) Compatibility: EPS FX(c) FunctionSelect the type of characters, slant or graphics

12 – 5114) Epson—control codes or printable characters—OFF(a) Code: ESC 7(b) Compatibility: EPS FX(c) Function:Cancels ESC 6, decimal locations 128-15

12 – 5212.4 Font Description1) Print quality—select mode—UTLINLQ(a) Code: ESC × n(b) Compatibility: EPS FX(c) Function:Either Utility or NLQ print qua

12 – 53<=<=(c) Function:Select High Speed Draft Character Set.(d) Range: n = 00H, 30H, 80H, or B0H HSD is selected.n = any other value The curre

12 – 545) Print quality—select high speed draft(a) Code: ESC # 0(b) Compatibility: ML(c) Function:Select the High Speed Draft (HSD) Print Quality Mode

12 – 55• The Cell Matrix as follows:• NLQ is mutually exclusive with the other print quality modes, UTL and HSD.• Refer to the illustration attachment

12 – 568) Print quality—select NLQ – Gothic(a) Code: ESC 3(b) Compatibility: ML(c) Function:Select the Near Letter Quality (NLQ) Print Quality Mode wh

12 – 57• UTL Custom Characters definition commands are:ascender characters = ESC % A m n1 ... n11descender characters = ESC % D m n1 ... n11copy ROM t