HP Value Serial/USB Receipt Printer II User guide

Programming Guide

HP Value Serial/USB

Receipt Printer II

The information contained herein is subject to change without notice. The only warranties for HP products and

services are set forth in the express warranty statements accompanying such products and services. Nothing herin

should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial edits or

omissions contained herein.

First Edition: October 2016

Document Part Number: 907769-001

www.hp.com

Contents 3

Contents

Chapter 1: Diagnostics and Conguration ..........................................9

Start-up Diagnostics ...........................................................................9

Runtime diagnostics .........................................................................10

Remote diagnostics ..........................................................................10

Indicators ...........................................................................................12

Printer conguration ........................................................................13

Conguring the printer ....................................................................14

Communication interface settings ..................................................15

Diagnostics modes ............................................................................ 16

Enable or disable data scope mode .................................................16

Enable or disable receipt test mode ................................................17

Electronic Journal Datascope Diagnostic ....................................... 17

Printer emulations ............................................................................17

Printer settings and functions .........................................................18

Select the emulation/software options sub-menu to set: ..........................18

Select the hardware options sub-menu to set: .............................................19

Select the rmware features sub-menu to set: .............................................. 19

Chapter 2: Programming the Printer .................................................20

Overview of commands ....................................................................20

Comparison to A793 .........................................................................20

Character appearance.......................................................................22

Width specications ..........................................................................22

Standard........................................................................................................................22

Compressed .................................................................................................................22

Print zones .........................................................................................22

Print zones for 80mm paper ............................................................. 22

Rotated printing commands ............................................................23

Emulation modes ..............................................................................23

Print setup in emulation modes .......................................................23

Chapter 3: Programming Commands ................................................24

Commands listed by function ..........................................................24

Printer actions ...................................................................................24

Print and paper feed ........................................................................24

Vertical and horizontal positioning ................................................ 25

Text characteristics ...........................................................................25

Graphics ............................................................................................26

Status .................................................................................................26

Batch mode ..................................................................................................................26

Real time .......................................................................................................................27

Automatic status back / Unsolicited status mode .........................................27

Contents4

Bar codes ............................................................................................ 27

Page mode ........................................................................................28

Macros ................................................................................................28

User data storage ..............................................................................28

Flash download .................................................................................28

Settings commands ..........................................................................29

Miscellaneous conguration commands ........................................29

Command conventions ..................................................................... 30

Command descriptions .....................................................................30

Printer actions ...................................................................................30

Clear printer .................................................................................................................30

Perform full knife cut ................................................................................................30

Perform partial knife cut .........................................................................................31

Generate tone .............................................................................................................31

Select peripheral device (for multi-drop) .........................................................31

Initialize printer ..........................................................................................................32

Select sensors to stop printing .............................................................................32

Enable or disable panel button ............................................................................32

Generate pulse to open cash drawer .................................................................33

Select cut mode and cut paper ............................................................................33

Set timeout value for low-power idle state .....................................................34

Set printer into low-power idle state ..................................................................34

Print test form .............................................................................................................34

Port Idle Timeout .......................................................................................................34

Print and paper feed .........................................................................35

Print and feed paper one line ................................................................................ 35

Print and carriage return .........................................................................................35

Feed n print lines .......................................................................................................35

Feed n dot rows ..........................................................................................................36

Add n extra dot rows ................................................................................................36

Print ................................................................................................................................37

Print and feed paper ................................................................................................. 37

Print and feed n lines ................................................................................................37

Vertical and horizontal positioning .................................................38

Horizontal tab .............................................................................................................38

Set horizontal and vertical minimum motion units ...................................... 38

Set column ...................................................................................................................38

Set absolute starting position ............................................................................... 39

Set vertical line spacing to 1/6 inch ....................................................................39

Set vertical line spacing...........................................................................................40

Set horizontal tab positions ...................................................................................40

Set relative print position .......................................................................................41

Select justication .....................................................................................................42

Set left margin ............................................................................................................42

Set printing area width ............................................................................................43

Text characteristics commands ........................................................44

Select double-wide characters .............................................................................44

Select single-wide characters ...............................................................................44

Select 90 degree counter-clockwise rotated print ........................................44

Contents 5

Select pitch (column width) ..................................................................................45

Set right-side character spacing ..........................................................................45

Select print mode ......................................................................................................46

Select or cancel user-dened character set .....................................................47

Dene user-dened character set .......................................................................47

Dene extended user-dened character set ...................................................48

Select or cancel underline mode .........................................................................48

Copy character set from ROM to RAM ...............................................................49

Cancel user-dened character ..............................................................................49

Select or cancel emphasized mode ....................................................................49

Select or cancel double-strike...............................................................................50

Select or cancel italic print .....................................................................................50

Select international character code ................................................................... 51

Select or cancel 90 degree clockwise rotated print ......................................52

Select international character set ....................................................................... 52

Select or cancel upside-down print mode .......................................................53

Select character size .................................................................................................54

Select or cancel white/black reverse print mode...........................................55

Set smoothing ............................................................................................................55

Select superscript or subscript modes ...............................................................56

Select active user-dened character set ...........................................................56

Download font list .....................................................................................................57

Congure use of font set.........................................................................................57

Congure line spacing .............................................................................................57

Double-byte fonts .............................................................................58

Lock permanent font ash area ............................................................................58

Erase user ash sector ..............................................................................................58

Select font ID number ..............................................................................................59

Select font style number ......................................................................................... 59

Save font ID number as default font at power up .........................................59

Get double-byte font CRC (font ID) .....................................................................59

Get double-byte font CRC (font ID and font style) ........................................59

Download font ............................................................................................................60

Graphics .............................................................................................60

Download BMP logo .................................................................................................60

Select bit image mode .............................................................................................61

Turn on/o TIFF compression ...............................................................................61

Print advanced raster graphics .............................................................................62

Select single-density graphics ..............................................................................62

Select double-density graphics ...........................................................................62

Select the current logo ............................................................................................63

Dene downloaded bit image ..............................................................................64

Print downloaded bit image ..................................................................................65

Print raster graphics .................................................................................................65

Print Flash Logo ..........................................................................................................66

Dene Flash Logos ....................................................................................................66

Logo print with knife cut ........................................................................................66

Set temporary max target speed .........................................................................67

Convert 6-dots/mm bitmap to 8-dots/mm bitmap ......................................67

Enable constant speed logos ................................................................................67

Contents6

Status .................................................................................................68

Status command introduction .............................................................................68

Batch mode ........................................................................................68

Transmit peripheral device status (RS-232C printers only) ........................68

Transmit paper sensor status ................................................................................69

Transmit printer ID ....................................................................................................69

Transmit printer ID, remote diagnostics extension .......................................71

Transmit status ...........................................................................................................74

Send printer software version ...............................................................................75

Real time commands .........................................................................75

Preferred implementation ......................................................................................76

Alternate implementation ......................................................................................76

Rules for using real time commands ..................................................................76

Moving data through the buer ..........................................................................76

Busy line and fault conditions ...............................................................................77

Real time status transmission................................................................................77

Real time request to printer ...................................................................................79

Real time printer status transmission .................................................................80

Real time commands disabled .............................................................................80

Automatic Status Back ...................................................................... 81

Enable/disable Automatic Status Back (ASB) ..................................................81

Unsolicited status mode ...................................................................84

Select or cancel unsolicited status mode (USM) ............................................84

Recognizing data from the printer ...................................................................... 86

Bar codes ............................................................................................ 87

QR code Overview ..................................................................................................... 87

Select model for QR code ......................................................................................87

Set size for QR code module .................................................................................87

Set data parsing mode for QR Code ...................................................................88

Select error correction level for QR Code .........................................................88

Store symbol data for QR Code ............................................................................88

Print symbol data for QR code ..............................................................................89

Transmit QR code print size ...................................................................................90

Select printing position of HRI characters ........................................................92

Select pitch of HRI characters ...............................................................................92

Select bar code height ............................................................................................. 92

Print bar code ..............................................................................................................92

Print multiple barcodes ...........................................................................................94

Print GS1 DataBar, null terminated .....................................................................95

Print GS1 DataBar, data length specied ..........................................................95

Set GS1 DataBar parameters .................................................................................96

Select PDF 417 parameters ....................................................................................96

Select bar code width ..............................................................................................97

Set DataMatrix Parameters ....................................................................................98

Set DataMatrix module size ...................................................................................99

Store DataMatrix data in symbol storage area ............................................. 100

Print DataMatrix symbol data in the symbol storage area ...................... 101

Page mode .......................................................................................102

Print and return to standard mode .................................................................. 102

Cancel print data in page mode ........................................................................102

Print data in page mode ......................................................................................102

Contents 7

Select page mode................................................................................................... 103

Select standard mode ........................................................................................... 104

Select print direction in page mode ................................................................ 104

Set print area in page mode ............................................................................... 105

Set absolute vertical print position in page mode ..................................... 106

Set relative vertical print position in page mode........................................ 106

Macros ..............................................................................................107

Select or cancel macro denition ..................................................................... 107

Execute macro ......................................................................................................... 107

User data storage ............................................................................108

Write to user data storage ................................................................................... 108

Read from user data storage ..............................................................................108

Select memory type (SRAM/ash) where to save logos

or user-dened fonts ............................................................................................. 108

Flash memory user sectors allocation ............................................................. 109

Flash object area pack ..........................................................................................109

Flash object delete ................................................................................................. 109

Expanded ash memory allocation ................................................................. 110

Select ash area for storing logos and user-dened characters ........... 110

Return ash area size ............................................................................................. 110

Erase user ash sector ........................................................................................... 111

Lock permanent font ash area ......................................................................... 111

Flash download ...............................................................................111

Switch to ash download mode .......................................................................112

Erase all ash contents except boot sector ................................................... 112

Return main program ash CRC ........................................................................ 112

Download application .......................................................................................... 113

Reset rmware .........................................................................................................113

Settings commands ........................................................................114

Save current settings .............................................................................................114

Restore factory settings........................................................................................ 114

Upload current settings ....................................................................................... 114

Upload factory settings ........................................................................................ 114

Download settings ................................................................................................. 114

Miscellaneous conguration commands ......................................115

Set diagnostics mode ............................................................................................ 115

Enable or disable knife ......................................................................................... 115

Enable or disable paper low sensor ................................................................. 115

Set max power ......................................................................................................... 115

Set printer emulation ............................................................................................ 116

Reset settings to default values ........................................................................ 116

Set partial cut distance ......................................................................................... 116

Set default font ........................................................................................................ 116

Set font size ...............................................................................................................117

Enable or disable Code 128 check digit calculation ..................................117

Enable or disable barcode ITF leading zero .................................................. 117

Enable or disable barcode string terminator ................................................117

Set paper low threshold extension .................................................................. 118

Enable or disable USM canned status ............................................................. 118

Send diagnostic pages to comm port ............................................................. 118

Enable or disable EJ action via operator control ......................................... 118

Contents8

Set ne adjustment of partial cut steps ......................................................... 119

Set printer ID mode ............................................................................................... 119

Set default code page at power on ..................................................................119

Set Asian ASCII characters to narrow...............................................................119

Set vertical white space ........................................................................................ 120

Set printer tone ....................................................................................................... 120

Enable or disable shutdown mode .................................................................. 120

Set shutdown mode timeout ............................................................................. 120

Appendix A:

Commands listed by hexadecimal code ..........................................121

Appendix B:

Resident Character Sets ....................................................................126

Character sets ..................................................................................126

Character code table Page 0 (PC437: USA, Standard Europe): ....126

Character code table Page 1 (PC850: Multilingual Latin I): .........127

Character code table Page 2 (PC852: Latin II): ..............................128

Character code table Page 3 (PC860: Portuguese): ......................129

Character code table Page 4 (PC863: Canadian French): .............130

Character code table Page 5 (PC865: Nordic): ..............................131

Character code table Page 6 (PC858: Multilingual I + Euro): .......132

Character code table Page 7 (PC866: Russian):.............................133

Character code table Page 8 (WPC1252: Latin I): .........................134

Character code table Page 9 (PC862: Hebrew): ............................135

Character code table Page 10 (PC737: Greek): .............................136

Character code table Page 11 (PC874: Thai): ................................137

Character code table Page 12 (PC857: Turkish): ...........................138

Character code table Page 13 (WPC1251: Cyrillic): ......................139

Character code table Page 14 (WPC1255: Hebrew): .....................140

Character code table Page 15 (KZ_1048: Kazakh): .......................141

Character code table Page 16 (WPC1256: Arabic): .......................142

Character code table Page 17 (WPC1250: Central Europe):.........143

Character code table Page 18 (WPC28591: Latin 1): ....................144

Character code table Page 19 (WPC28592: Latin 2): ....................145

Character code table Page 20 (WPC28599: Turkish): ...................146

Character code table Page 21 (WPC28605: Latin 9): ....................147

Character code table Page 22 (PC864: Arabic): .............................148

Character code table Page 23 (PC720: Arabic): .............................149

Character code table Page 24 (WPC1254: Turkish): .....................150

Character code table Page 25 (WPC28596: Arabic): .....................151

Character code table Page 26 (KATAKANA: Asia): ........................152

Character code table Page 27 (PC775: Baltic): ..............................153

Character code table Page 28 (WPC1257: Baltic): ........................154

Character code table Page 29 (WP28594: Baltic): ........................155

Chapter 1: Diagnostics and Conguration

9

Chapter 1: Diagnostics and Conguration

The printer performs a number of diagnostics that provide useful information about the operating status of the printer.

The following diagnostic tests are available.

• Start-updiagnostics

 Performedduringtheprinter’sstart-upcycle.

• Runtimediagnostics

Performed during normal printer operation.

• Remotediagnostics

Maintained during normal operation and reported in the print test.

• Theprintercanbeconguredwiththefollowingsettingsandfunctionsthroughthecongurationmenuthatisprinted

onthereceipt.Formoreinformationonconguringtheprinter,see“Printerconguration”onpage13.

Communication interfaces

Diagnostic modes

Printer emulations/software options

Hardware options

  PaperType

Firmware features

Start-up Diagnostics

Whentheprinterreceivespowerorperformsahardwarereset,itautomaticallyperformsthestartupdiagnostics(also

knownaslevel0diagnostics)duringthestart-upcycle.Thefollowingdiagnosticsareperformed:

• Turnoffmotors

• PerformbootCRCcheckofthermwareROMandtestmainprogramCRC

 FailurecausesStart-upDiagnosticstostop;theprinterbeepsandtheLEDashesasetnumberoftimes,indicatingthe

natureofthefailure.Thetableinthe“Indicators”section(page12)describesthespecictoneandLEDsequences.

• Checkifpaperispresent

• Returntheknifetothehomeposition

 Failurecausesafaultcondition.Thetableinthe“Indicators”section(page12)describesthespecictoneandLED

sequences.

• Checkifreceiptcoverisclosed

 Failuredoesnotinterruptthestart-upcycle.

Atpowerup,iftheLEDblinkstwice,everyfourseconds,theobjectstorageareasarebeinginitialized.Thisprocesscould

takeuptotwominutes.Oncetheobjectstorageareainitializationiscompletetheprinterwillcontinuewithitsnormal

startupprocedureandoperation.DONOTRESETTHEPRINTERUNTILTHISPROCESSISCOMPLETE.

Whenthestart-updiagnosticsarecomplete,theprintermakesatwo-tonebeep(lowthenhighfrequency),thepaperfeed

buttonisenabled,andtheprinterisreadyfornormaloperation.

Iftheprinterhasnotbeenturnedonbefore,oranewEEPROMhasbeeninstalled,thedefaultvaluesfortheprinter

functionswillbeloadedintotheEEPROMduringstart-updiagnostics,andtheprinterwillmakeaquickfour-tonebeep

(highthenlowfrequency,twice)

Chapter 1: Diagnostics and Conguration10

Runtime diagnostics

Runtimediagnostics(sometimescalledlevel2diagnostics)runduringnormalprinteroperation.Whenthefollowing

conditionsoccur,theprinterautomaticallyturnsofftheappropriatemotorsanddisablesprintingtopreventdamagetothe

printer:

• Paper out

• Receiptcoveropen

• Knifeunabletohome

• Printhead too hot

• Voltagesoutofrange

TheLEDontheoperatorpanelwillsignalwhentheseconditionsoccuraswellasindicatewhatstateormodetheprinter

is in.

Remote diagnostics

Remotediagnostics(sometimescalledlevel3diagnostics)keepstrackofthefollowingtalliesandprintsthemonthe

receiptduringtheprinttest.Seethesampletestprintoutonthenextpage.Thesetalliescanbeusedtodeterminethe

printer’s state of health.

• Modelnumber

• Serialnumber

• CRCnumber

• Numberoflinesprinted

• Numberofknifecuts

• Numberofhourstheprinterhasbeenon

• Numberofashcycles

• Numberofcutterjams

• Numberoftimesthecoverisopened

• Numberofbarcodesprinted

• Numberofreceiptcharactersprinted

• Numberofprinterfaults

• Maximumtemperaturereached

• Numberofdotsprinted

• Numberofdotsprintedoncurrentprinthead

• Numberofprintheadchanges

• Numberofreceiptmechanismchanges

• Numberofknifemechanismchanges

• Numberofthermistorerrors

• Numberoflowvoltageerrors

• Numberofhighvoltageerrors

• Numberofrmwarestarts

• NumberofEEPROMupdates

Chapter 1: Diagnostics and Conguration

11

For more information about See this section

Accessing the remote diagnostic tallies “Command descriptions” in Chapter 3: Programming Commands

(Status commands: Transmit printer ID, remote diagnostics extension,

Hexadecimal 1D 49 40 n)

Print test will vary per model or printer conguration.

(Shown approximately 60% of size.)

- Set Firmware Features - > 8 clicks

*** A798II - Diagnostics Form ***

Model number : A798-780X-TD00

Serial number : 0000000000

Loader Firmware

P/N : PN#: 189-799L111

Date : Nov 10 2015

Flash Firmware

Revision : V1.46

CRC : 9701

P/N : 189-798A146B

H/W parameters

Flash Memory Size : 8 Mbytes

Flash Logos/Fonts : 1600 kbytes

Flash User Storage : 576 kbytes

Flash Perm’nt Fonts : 2240 kbytes

Flash Journal Size : 640 kbytes

SRAM Size : 512 kbytes

Head settting : H

Motor ID : 1

Paper Type Setting : Type 0, Monochrome

Color Density Adj : n/a

Print Density, Mono : 100%

Max Speed : 180 mm/sec

Paper Width : 80 mm

Max Power : Level 1

Knife : Enabled

Partial Cut : 135 steps

Paper Low Sensor : Enabled

No Paper Low Extension

Comm. Interface

Interface : USB

RX Buer Size : 4096

USB Driver Type : Printer Class

Interface : RS232

RX Buer Size : 4096

Parameters

Baud Rate : 115200

Data Bits : 8

Stop Bit : 1

Parity : NONE

Flow Control : DTR/DSR

Reception Errors : Ignore

Resident Code Pages : 437, 720, 737, 775, 850

852, 857, 858, 860, 862...

Press Feed Button Within the

Next Two Seconds

***To Enter Printer Cong Menu***

A798IIDiagnosticsForm

Chapter 1: Diagnostics and Conguration12

Indicators

Theprintercommunicatesvariousconditionsbothvisually,withthegreenLEDoraudibly,withaseriesoftonesorbeeps.

The following table lists these indicators.

Indicator Sequence Condition

LED Continuous, ashing quickly Paper out

Cover open

Knife unable to home

LED Continuous, ashing slowly Paper is low

Printhead too hot

Voltages low/high

LED Continuous, Double LED ash Write to permanent memory in progress

Tone Two-tone beep Start-up diagnostics completed successfully

(low frequency, high frequency)

LED Two-Tone beep When entering ash download mode*

and Tone (high frequency, low frequency)

Continuous, quick blinking of LED

*Note: The printer enters ash download mode when a download command is sent to

the printer.

The printer is also able to communicate its status to the host application if the application has been programmed to receive

this information

For more information about See this section

Error conditions and correcting them “ Troubleshooting” in the User Guide

Communication of printer status to the host application “Command descriptions” in Chapter 3: Programming

Commands, Status sections.

Chapter 1: Diagnostics and Conguration

13

Printer conguration

Printersareshippedwithallthefunctionsandparameterspresetatthefactory.Settingsforvariousprinterparameters

canbechanged.Thismenuisprintedonthereceiptandscrollsthroughinstructionsforselectingandchanginganyofthe

functions or parameters.

Caution: Be extremely careful changing any of the printer settings to avoid inadvertently changing other settings that

might affect the performance of the printer.

Thefollowingfunctionsandparameterscanbechangedinthescrollingcongurationmenu(exceptasnoted):

• CommunicationInterfaces

Baud rate

 Parity

 Hardware(DTR/DSR)orsoftware(XON/XOFF)

owcontrol

Data reception errors

 AlternateDTR/DSR

 USBDriver

 USBNAK

• DiagnosticsModes

 Normal

 Datascope(withorwithoutgraphics)

 Receipttest

• PrinterEmulations

 Nativemode

A794 emulation

 A793emulation

 LEGACYemulation

• Emulation/Softwareoptions

  PrinterIDmode

Default lines per inch

Carriage return usage

  Code128CheckDigit

Default font

  Fontsize

Journal Print

• Hardware options

  Monochromeprintdensity

  MaxPower

Partial cut distance

Fine partial cut steps

Paper low sensor

  Paperlowthresholdextension

  Printheadsetting(cannotchange)

• Firmware features

Paper selection lockout

Beep after knife cut

Cash drawer open after knife cut

  Energy-savingsTimeoutValue

For more information about See this section

Using the conguration menu “Conguring the printer”

to congure the printer on page 14.

Chapter 1: Diagnostics and Conguration14

1 Turn power off to printer.

2 Make sure receipt paper is loaded in the printer before

proceeding. Make sure cover is closed.

3 Applypowertoprinterandimmediatelypressandhold

thepaperfeedbuttonuntilthecongurationprintout

begins.

• Theprinterbeeps,thenprintsDiagnosticsFormI.

• Pressthepaperfeedbuttonwithintwosecondsto

enterthecongurationmainmenu.

• TheprinterprintsDiagnosticsFormII,followed

bythePrinterCongurationMenu,andwaitsfor

amainmenuselectiontobemade(seesample

printoutonpage11;shortclicksareused,except

whenanswering“yes”orvalidatingselection).

4 Tocommunicatewiththeprinter,youwillpressthe

paperfeedbuttonusingeithershortorlongclicks.Use

alongclickfor“yes”(morethanonesecond)anda

shortclickfor“no.”Followtheprintedinstructionsto

make selections.

5 Continuethroughyourmenuselectionsuntilyouare

asked,“SaveNewParameters?”Select“Yes.”

a ResetthePrinter.

b Openthereceiptcover.

Press and hold the paper feed button while closing

the receipt cover.

• Thediagnosticprintoutveriesyournewsettings.













Conguring the printer

Thecongurationmenuallowsyoutoselectfunctionsorchangevarioussettingsfortheprinter.Instructionsprintedonthe

receiptguideyouthroughtheprocesses.

Caution: Be extremely careful changing any of the printer settings to avoid changing other settings that might affect the

performance of the printer.

Chapter 1: Diagnostics and Conguration

15

Communication interface settings

Tochangethecommunicationinterfacesettings,enterthecongurationmenu,select“SetCommunicationInterface”from

the main menu.

Caution: Be extremely careful changing any of the printer settings to avoid inadvertently changing other settings that

might affect the performance of the printer.

Pressthepaperfeedbuttonasinstructedonthecongurationmenutoselectthesettingsyouwanttochange.

• Baudrate

  115200baud

  57600baud

  38400baud

  19200baud

  9600baud

4800 baud

  2400baud

  1200baud

• Parity

  NoParity

  EvenParity

  OddParity

• Flowcontrolmethod

  Software(XON/XOFF)

  Hardware(DTR/DSR)

• Datareceptionerrors

  Ignoreerrors

  Print“?”

• AlternateDTR/DSR

  Enabled

Disabled

• USBDriver

Printer Class

Comm Class

• USBNAK

  RejectPacketsWhenError

  AcceptPacketsWhenError

Note: Press the paper feed button for at least one second to validate the selection.

For more information about See this section

Setting the RS-232C Serial interface settings “Conguring the printer” on page 14

Chapter 1: Diagnostics and Conguration16

Diagnostics modes

Tochangethediagnosticmodesenterthecongurationmenu,select“SetDiagnosticsModes”fromthemainmenuand

selectoneofthefollowingmodes:

• Normal: normal operating mode of the printer.

• Datascope:thereceiptprinterprintsincomingcommandsanddatainhexadecimalformattohelptroubleshoot

communicationproblems.ThereareDataScopemodesforbothwithandwithoutgraphics.

• Receipt test:thereceiptprinterprintsallcodepagestoverifyproperprintingofthereceipt.

Caution: Be extremely careful changing any of the printer settings to avoid inadvertently changing other settings that

might affect the performance of the printer.

See“Conguringtheprinter,”page14forinstructionsonhowtoenterthecongurationmenu.

Enable or disable data scope mode

Thedatascopemodetestprintsahexadecimaldumpofalldatasenttotheprinter:“1”printsashexadecimal31,“A”as

hexadecimal41andsoon.Thishelpstroubleshootcommunicationproblemsandrunsduringanormalapplication(after

beingenabledthroughprinterconguration).

Note: Data scope mode is usually considered a level 1 diagnostic test.

Datascopemodeisenabledanddisabledbyselectingthe“DiagnosticsModes”sub-menuofthecongurationmenu.

Pressthepaperfeedbuttonasinstructedonthe“DiagnosticsModesMenu”toenableordisablethedatascopemodetest.

• Off,normalmode(Datascopemodedisabled)

• Datascopemodewithorwithoutgraphics(enabled)

Note: Press the paper feed button for at least one second to validate the selection.

To run the data scope mode:

1 Afteryouhaveenabledthedatascopemode,exitthecongurationmenu.

2 Runatransactionfromthehostcomputer.

 Allcommandsanddatasentfromthehostcomputerwillbeprintedashexadecimalcharactersasshowninthe

illustration.

To exit the data scope mode:

1 Enterthecongurationmenuagain.

2 Disablethedatascopemode.

3 Exitthecongurationmenu.

 Theprinterison-lineandcancommunicatenormallywiththehostcomputer.

For more information about See this section

Enabling the data scope mode “Conguring the printer” on page 14

Chapter 1: Diagnostics and Conguration

17

Enable or disable receipt test mode

Thereceipttestmodeveriesproperreceiptprinting.Receipttestisenabledanddisabledbyselectingthe“Diagnostics

Modes”sub-menuofthecongurationmenu.See“Conguringtheprinter”onpage14forinstructionsonhowtoenterthe

congurationmenu.

To run the receipt test mode:

1 Enablethereceipttestmodeinthecongurationmenu.

2 Exitthecongurationmenu.

3 Push the paper feed button. The receipt station prints all code pages and cuts the receipt.

4 Torepeatthistest,pushthepaperfeedbuttonagain.

To exit the receipt test mode:

1 Enterthecongurationmenuagain.

2 Disable the receipt test mode.

3 Exitthecongurationmenu.

 Theprinterison-lineandcanagaincommunicatenormallywiththehostcomputer.

Electronic Journal Datascope Diagnostic

1F031802n=1,turnonelectronicjournaldatascope,runtimeonly

1F031802n=0,n>1,turnoffelectronicjournaldatascope,runtimeonly

1F031803n=1,turnonelectronicjournaldatascope,congurationsavedoverpowercycle

1F031803n=0,n>1,turnoffelectronicjournaldatascope,congurationsavedoverpowercycle

Whenenabled,“AutoJournal:Datascope”printsontheseconddiagnosticpage.

Thisdiagnosticisfordebuggingpurposes,andshouldbeusedonlyunderthedirectionofcustomer

support.

Printer emulations

Tochangetheprinteremulationssettings,enterthecongurationmenu,select“Emulation/SoftwareOptions”fromthe

mainmenuandanswer“Yes”to“Setprintermode?”printedonthereceipt.Thiswilltakeyoutotheinstructionsfor

setting the printer emulation.

Caution: Be extremely careful changing any of the printer settings to avoid inadvertently changing other settings that

might affect the performance of the printer.

Pressthepaperfeedbuttonasinstructedtoselecttheprinteremulationyouwant.

 • Nativemode

 • A794emulation

 • A793emulation

 • LEGACYemulation

Note: Press the paper feed button for at least one second to validate the selection.

For more information about See this section

Setting the printer emulation “Conguring the Printer” on page 14

Chapter 1: Diagnostics and Conguration18

Printer settings and functions

Tochangetheprintersettingsandfunctions,enterthecongurationmenu,selectthesub-menufromthemainmenuand

answerthequestionsprintedonthereceiptuntilyoucometotheinstructionsforselectingtheprintersettings.

Caution: Be extremely careful changing any of the printer settings to avoid inadvertently changing other settings that

might affect the performance of the printer.

Pressthepaperfeedbuttonasinstructedtoselecttheprintersettingsyouwant.

Select the emulation/software options sub-menu to set:

• PrinterMode

 ThisfunctionisusedtosettheprinteremulationtoNative,A794,A793orLegacyemulation.

• PrinterIDmode

 ThisfunctionisusedtodeterminewhatprinterIDvalueisreturnedinresponsetoaTransmitprinterIDcommand(1D

49 n)whentheprinterisinA794emulationmode.TheprintercanbeconguredtosendbacktheIDoftheA798II,

A794,A793orApplicationCompatibleEscapeCommandsystems.

• Defaultlinesperinch

 Thisfunctionallowsyoutosetthedefaultforlinesperinchto:

 • 8.13linesperinch

 • 7.52linesperinch

 • 6.77linesperinch

 • 6.00linesperinch

• Carriagereturnusage

This function allows the printer to ignore or use the carriage return(hexadecimal0D)commanddependingonthe

application.Someapplicationsexpectthecommandtobeignoredwhileothersusethecommandasaprintcommand.

• Code128CheckDigit

 Enablesordisablesthecalculationofthecheckdigit.

• Defaultfont

 SetsthedefaultformonochromeandLEGACYemulations.

• Fontsize

 Allowsusertosetfontsizefortheemulationbeingused.

• JournalPrint

 Enablesordisablesoperatoraction.

Chapter 1: Diagnostics and Conguration

19

Select the hardware options sub-menu to set:

• Printdensity(monochromepapersonly)

 Adjustsprintheadenergyleveltodarkenprintoutoradjustforpapervariations.Whenprinterprintshigh-density

printlines(textorgraphics),itautomaticallyslowsdown.FactorysettingfortheA798IIis100%.

WARNING: Choose a print density setting no higher than necessary to achieve acceptable print density. Failure to

observe this rule may result in a printer service call and may void the printer warranty. Running at a higher energy level

will reduce the printhead life. Consult your HP technical support specialist if you have questions.

• Powersupplylevel(Maxpower)

 Youcanchoosefromthesepowersettingstomatchthepowersupply:

Auto

 LevelI(55W)

 LevelII(75W)

 LevelIII(90W)

• Partialcutdistance

 Allowstheusertosetthedistancethattheknifewillcutacrossareceiptin5stepincrementsbetween110-160.

• Finepartialcutsteps

 Allowstheusertosettheamountofextrastepstheknifewillcutacrossareceipt,between0and4.

• Paperlowsensor

 Senseswhenthepaperrollisgettinglowonpaper.

• Paperlowthresholdextension

 Allowstheusertosettheamountoffootagefortheextensionin5footincrementsbetween-10and20feet.

For more information about See this section

Setting the printer functions “Conguring the printer” on page 14

and settings

Select the rmware features sub-menu to set:

• Paperselectionlockout

• Beepafterknifecut

• Cashdraweropenafterknifecut

• Energy-savingstimeoutvalue

 Allowstheusertoenableandsetthetime-outvalueto15,30,60,120,or240minutes,ortodisablethefeature.

Chapter 2: Programming the Printer20

Chapter 2: Programming the Printer

Overview of commands

Commandscontrolalloperationsandfunctionsoftheprinter.Thisincludesselectingthesizeandplacementofcharacters

andgraphicsonthereceipttofeedingandcuttingthepaper.Theprogrammingcommandshavebeenorganized,inorderof

hexadecimalcodewithinfunctionalgroups.Forthisreason,“related”commandsmaynotbelistedadjacenttooneanother.

Theoperationofvariousprintersmaybeemulatedbythecommands,includingthefollowing:

• A793/A794

• Native

• LEGACY

Anyofthecommandsmaybeusedinanycombinationtoprogramahostcomputertocommunicatewiththeprinter

(unlessotherwisenoted).

Somecommandslistedanddescribedheremaynotbeimplementedandareidentiedas“notimplemented.”Ifreceived,

theyareignoredandnotsenttotheprintbufferasdata.

Anynonlegalcommandshavetheirparametersenttotheprintbufferasdata.

Comparison to A793

ThefollowingtabledetailsthelistofcommandswhosebehaviordiffersbetweentheA793,A794,andA798IIbecauseof

thephysicaldifferencesofa6dots/mmhead(A793)versusan8dots/mmhead(A794andA798II).

Command Description Dierence between previous product

and new product emulation mode.

15 n Feed n dot rows This command will move the paper on the receipt in

n/203 inch steps instead of n/152 inch steps.

16 n Add n extra dot rows The dot rows will be measured in n/203 inches versus

n/152 inches.

1B 20 n Set right-side character spacing This command sets the right side spacing to “n” horizontal

motion units. By default, these units are in terms of 1/203

inches versus 1/152 inches.

1B 24 n1 n2 Set absolute starting position For graphics commands, the position is scaled to best

match A793. In text mode, the equivalent character

position is calculated.

1B 26 s c1 c2 n1 d1...nn dn] Dene user-dened character set Since the dots on the A798II printhead are smaller, user

dened characters that were used on the previous printers

will appear smaller on the A798II printer.

1B 2A m n1 n2 d1...dn Select bit image mode In A793 emulation mode, graphics are scaled to best

match the size of the graphic in the A793 printer.

1B 33 n Set line spacing This command uses n in terms of n/360 inches. Since the

A793 had a fundamental step of 1/152 inch and the A798II

has a fundamental step of 1/203 inch, the actual line

spacing will not exactly match the requested spacing.

Continued...

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HP Value Serial/USB Receipt Printer II User guide

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