Manuale d’uso / di manutenzione del prodotto 706A del fabbricante HP
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OWNER'S MANUAL __________________ PRINT MAST ER 700 SERIES PRINTER CONT ROLLERS 706A 706C 708C 710C 706D 708D 706E 708E 710E 708F 710F BayTech publi cation #U140E045- 05.
Dear C ustomer, Thank you for selecti ng a Bay Tech Print Master pr inter controll er. The data prov ided in this Ow ner's M anual ex plains the v arious w ays you can oper ate your unit and configur e it to y our ow n computer system.
The information contained in this document is subject to chang e wi thout notice. Copy right 1993 by Bay Technical Associates, Inc. IBM PC, IBM PC/AT, IBM PC/XT and IBM PS/2 are products of International Busi ness Machines Cor poration. Hewlett-Packar d LaserJet is a pr oduct of the Hewlett-Packar d Com pany.
TABLE OF CONT ENTS 1 GENERAL INFORMATION ............................................... 1 2 SPECIFICATIONS ............................................................ 3 3 QUICK REFERENCE ....................................................... 6 4 INSTALLATION .
6.2 PRINTER SHARING OPERAT ING PROCEDURE 24 6.2.1 SHARING A SINGLE PRINTER ................ 25 6.2.2 SPECIFIED SHARING OF MULTIPLE PRINTERS ................................................ 26 6.2.3 CONTEND ING FOR M ULTIPLE PRINTERS ..................
7.1.6 MODELS 706A AND 708A - PROGRAM PRINTER SELECT CODE ........................ 45 7.1.7 MODELS 706A AND 708A - SET PRINTER SELECT MODE ........................ 46 7.1.8 MODELS 706A AND 708A - SET FORM FEED MODE .....................................
7.3 ALL 700D, 700E, 700F MOD ELS - CONFIGURATION PROCEDURE ....................... 60 7.3.1 ALL 700D, 700E, 700F MOD ELS - MAIN CONFIGURATION MENU ......................... 62 7.3.2 ALL 700D, 700E, 700F MOD ELS - STATUS ...............................
APPENDIX A RECOMMENDED CABLING ......................................... 78 A.1 BETW EEN IBM PC, IBM XT, IBM PS/2 AND PRINT MASTER (DB-25) ............................ 78 A.2 BETW EEN IBM AT AND PRINT MASTER (DE-9).....................................
1 The BayTech 700 Series Print Master is a flexible, intelligent dev ice that connects between y our computer s and peripheral s allow ing the computers to share the per ipherals, i ncluding ex pensiv e plotters and laser pri nters.
2 In addition to port assi gnment, y ou may pr ogram the follow ing features to meet the need of your applic ation: the indiv idual ser ial port configuration ( baud rate, w ord siz e, stop bits, pari.
3 2. INTERFA CE: Serial ports: Asynchr onous EIA-232C ( CCITT V.24) , -12v mark, +12v space. Full dupl ex communication.
4 USER-PROGRA MMA BLE CONFIGURA TION: Reconfigur able in menu- driv en mode throug h configuration por t. Saved i n non-vol atile memory to become the new pow er-up default configurati on. Serial ports: Baud rate: 110, 135, 300, 600, 1200, 2400, 4800, 9600, 19200.
5 POWER: 115 VAC, 50/60 Hz., .3A. Optional 230 VAC, 50/60 H z., .2A. ENVIRONMENT: 0 degrees to 55 degr ees C temperatur e; 5% to 95% humidity . DIMENSIONS: 10 1/8w x 8d x 3h inches. WEIGHT: 6 pounds. INDICA TORS: 1 g reen pow er LED; 6, 8 or 10 red, port-activity LEDs.
6 This section pr ovides basi c set up instructions for those knowledg eable in computer equipment installation. W e will refer to specific sections in thi s manual for more in-depth i nstructions on installati on operation, and configur ation.
7 Step Instr uction s connect to ports as signed as pri nt er. All port s are f lexible except as noted below (i.e. , ports m ay be confi gured as com put er or pri nt er).
8 Step Instr uction s A. Seria l Ports Serial port s on Print Mast er are DCE. Therefore, s traight c abling is requi red between the com puter's s erial port and P rint Master's s eri al port . A st raight cable is also required bet ween Print Mas t er' s serial port and t he serial port of a print er or pl ot t er.
9 Step Instr uction s To print f rom a serial port of your PC, you m ust f irst redi rec t the parallel out put to the serial port via the DOS c om m and C: >MODE LP Tx:=COMy:, where x and y are the port desi gnat i on (e.
10 After opening the box , check the packing l ist that comes w ith Pri nt Master to ensure that y ou have receiv ed all components. Also check the unit to make certain that i t did not receiv e damage during shipping .
11 To run INSTALL, use the follow ing procedur e: 1. Insert the so ftware utility diskette into d riv e A (or drive B) and from the prompt ty pe INSTA LL followed by <ENTER> . 2. A menu titled "D riv e & Dir ectory D efinitions" w ill appear on your screen.
12 The Print Master requi res 115 VAC, 50/60 Hz . power and comes w ith a three-pr ong pow er cord. Do not attempt to oper ate the unit w ith a two- prong socket or adapter.
13 This section pr ovides i nstructions on how to set up your PC to w ork wi th Print Master wi th respect to the BayTech softwar e (if you i ntend to use it) and special considerations w hen connecting your PC in serial.
14 You w ill also need to change the serial port configuration of your PC's com port to match that of the Print Master. If using the Print Master's factory default serial configuration, thi s is accompli shed vi a the DOS command C:>MOD E COMy : 9600, N, 8,1,P wher e y is the number of the appropriate com por t.
15 Please see Section 5.1 for parallel por t cabling information, Section 5.2 for DB-25 seri al port cabli ng information, or Section 5.3 fo r RJ-45 cabling. Appendix A prov ides recommended cabli ng pinouts. Parallel ports on Print M aster have D B-25 female connectors.
16 IMPORTA NT: Bef ore y ou proceed w ith cabling , you must know whether the dev ices that you will connect to Print Master are DTE (Data Ter minal Eq uipment) or D CE (D ata Communicati on Equipment) . The followi ng dev ices are g enerally DTE: terminals, printers , and computers like the IBM PC.
17 DTE ports use the follow ing sig nals f or communicati on: DTE PORT PI N/ S IGNA L DE FINITION Pin Signal (EIA -232) Directio n De scriptio n 1 PGND --- Protec t ive Ground 2 Tx Output Data Out 3 Rx Input Data In 4 RTS Output Request To Send 5 CTS Input Clear To Send: Input hands hak e l i ne.
18 PRINT MASTER - DCE DTE DEVICE MALE DB-25 MALE/FEMALE DB-25 PRINT MASTER - DCE DCE DEVICE MALE DB-25 MALE DB-25 NOTE: Please refer to Appendix A for recommended cabli ng between Pr int Master and v arious computers and peripher al devi ces.
19 !" #$ The EIA-232 serial ports of the Print Master Models 706C, 708C , or 710C may have RJ-45 modular connectors.
20 Figure 4: RJ-45 Receptacle Figure 5: RJ-45 Plug Please see Appendix A.5 for modular adapter pinout and cabling information. This section di scusses the vari ous user-prog rammable config urations ( Section 6.1 ), pri nter sharing operation ( Section 6.
21 #%# Indiv idual ports on Pr int Master may be conf igur ed as computer or printer v ia the Number of Printers/Port Assi gnment.
22 # To select a printer in multipl e printer appli cations, the computer sends the Printer Sel ect Code (w hich consists of any ASCII character str ing numbering from one to eight character s) follow ed by the desi red printer port number.
23 # NOTE: This section is not appl icable to the 706A or 708A models. Print Master will transla te for seria l devices using dif fe rent configurations.
24 " ## You may configur e Print M aster to print a pr ogr ammable message and the logi cal name of the source computer on a separate sheet of paper before pri nting any other data.
25 Please see the table below f or a q uick reference to the printer sharing operating procedure. PRINTER S HARING QUICK REFERE NCE Item See Section Sharing a s i ngl e pri nt er 6.2.1 Speci f i ed s haring of m ultiple printers 6. 2.2 Contending f or m ultipl e pri nt ers 6.
26 # To se lect a specif ic printer in m ultiple p rin ter applica t ions, .
27 There are tw o modes f or sending the Printer Sel ect Code. In Printer Select Mode 2 (pr inter selecti on anytime w hile printing ), Pri nt Master looks for the Printer Sel ect Code any time. If no Printer Select C ode is received, the d ata will be routed to the def ault printer.
28 W hen a user sends a print job, the data is stor ed in Print M aster's spooling buff er (1 M B standard, av ailable w ith 2 MB on 700C, 700D and 700E models; av ailable w ith up to 4 MB on 700A models).
29 4. The computer sends the Pr inter Select Code follow ed by a printer port number. If the port number is the same number as that of the current print job, this will indicate the end of the current print job, and the next print job w ill be routed to the same printer .
30 If you w ish to clear a pr int job is sent i n error, y ou must send the clear buffer sequence whi ch consists of the Printer Sel ect Code follow ed by CLR . This comm and w ill only affect print jobs originated by y our computer.
31 " # BayTech provides u t ility sof tw are which allows you to convenient ly select betw een peripheral s for IBM DOS and Mi crosoft W indows applicati ons. Port selection i s as easy as acti vating hot keys or by using a mouse.
32 Progr ams such as W o rd Perfect and W ordStar typical ly send a printer initial izati on string before any data. Y ou may imbed the por t select sequence in thi s string to select a printer . For ex ample, W ord Perfect allow s y ou to edit the printer definition file for a specific printer by using the PTR command.
33 It is still possible to plot dynam ically through Print Maste r if require d . W hen plotting in this fashion, y ou woul d probably need to increase the input inactiv ity timeout v alue to a hig her number than factory default (20 seconds).
34 ### COMPUTER-TO-PRINT MA STER-TO-PRINTER COMMUNICA TION W hen a computer t.
35 PRINT MA STER-TO-COMPUTER COMMUNICA TION NOTE: Print Master will prov ide full duplex communication between a computer and pri nter w hich ar e connected through the uni t. This section is appl icable only when a devi ce that is connected to a pri nter port is sendi ng data back to a dev ice connected to a computer por t.
36 )%)## COMPUTER-TO-PRINT MA STER-TO-PRINTER COMMUNICA TION W hen a computer transmits data to a printer thr ough a Pri nt Master computer port, the data is receiv ed and stored in the buffer whic h in turn retransmits it to the printer through a printer port.
37 PRINT MA STER-TO-COMPUTER COMMUNICA TION NOTE: Print Master will prov ide full duplex communication between a computer and pri nter w hich ar e connected through the uni t. This section is appl icable only when a devi ce that is connected to a pri nter port is sendi ng data back to a dev ice connected to a computer por t.
38 Configur ation changes ar e made throug h the master configur ation port w hich is the hi ghest numbered por t on all models. Pr int Master will transmit configuration menus to the serial dev ice connected to the master configurati on port on all model s except the 706A and 708A.
39 All ports on the Pr int Master 706A or 708A must be inactiv e (i.e., only the g reen pow er LED should be illuminated). W ith the PARSEND or M S BASIC prog ram loaded on your PC , send from the keyboar d Control-T followed by capital C . These characters will not print on the printer.
40 " Print Master 706A and 708A will respond to.
41 " By r esponding to the Enter Request: message at the end of the main configuration menu w ith "1" (Status), y ou may rev iew the current configuration status of the 706A and 708A.
42 "# By r esponding to the Enter Request: message at the end of the main configurati on menu wi th "2" (Chang e Logi cal Name) , you may change the identifyi ng name for the devi ce on each port.
43 " & By r esponding to the Ent.
44 " By r esponding to the Enter Request: message a.
45 " By r esponding to the Enter Requ.
46 " By r esponding to the Enter Request: message at the end of the main configurati on menu wi th "6" (Set Pri nter Select M ode), y ou may change the method of selecting pr inters.
47 ( " # By r esponding to the Enter r equ.
48 All configur ation changes must be made thr ough the master configuration por t. This master config uration port has access to al l options of the configuration mode.
49 If you do not hav e a dumb terminal or a terminal emul ation prog ram, BayTech supplies a utility diskette w hich includes sof tware to put an IBM PC or compati ble into a terminal mode. See Section 4.2 for instructions to obtai n the software (TERM .
50 3. Refer to the upper r ight hand corner of the screen for Handshaking line status. RTS, CTS, DSR, and D TR should all be HIGH. The DCD line is not looked at by the terminal emulati on progr am therefore its status can be ignor ed. If these signals are not hi gh at this poi nt, check to ensure the corr ect cable is connected.
51 By r esponding to the Enter Request: message at the end of the main configuration menu w ith "1" (Status), y ou may rev iew the status of the current configur ation of Print Master .
52 By r esponding to the Enter Request: mess.
53 You may now r econfigure Por t 5 by selecti ng the appropr iate option from the menu. For ex ample, to change the baud r ate to 2400 baud, send character "2" (Set baud rate).
54 CA UTION: If Y is sent before chang ing the configur ation dev ice to the new configuration (baud rate or parity ), Print Master w ill not receive the Y response. Howev er, you w ill be locked out of Print Master. If this occurs, recycle Print Master power.
55 & By r esponding to the Enter Request: message at the end of the main configurati on menu wi th "3" (Set Input Inactiv ity Timeout) , you may set the input inactivity tim eout.
56 By r esponding to the Enter Request: message at the end of the main configurati on menu wi th "4" (Set Number of Printers) , y ou may change the number of pri nters.
57 By r esponding to the Enter Request: message at t.
58 By r esponding to the Enter Request: message at the end of the main configurati on menu wi th "6" (Set Pri nter Select M ode), y ou may change the method of selecting pr inters.
59 ( # By r esponding to the Enter r equest: messag e at .
60 !! All configur ation changes must be made thr ough the master configuration por t. This master config uration port has access to al l options of configuration mode.
61 If you do not hav e a dumb terminal or a terminal emul ation prog ram, BayTech supplies a utility diskette w hich includes sof tware to put an IBM PC or compati ble into a terminal mode. See Section 4.2 for instructions to obtai n the software (TERM .
62 3. Refer to the upper r ight hand cor ner of the screen for Handshaking line status. RTS, CTS, DSR, and D TR should all be HIGH. The DCD line is not looked at by the terminal emulati on progr am therefore its status can be ignor ed. If these signals are not hi gh at this poi nt, check to ensure the corr ect cable is connected.
63 !! By r esponding to the Enter Request: message at the end of the main configuration menu w ith 1 (Status), y ou may rev iew the status of the current configuration of Print Master.
64 !! By r espondi.
65 You may now r econfigure Por t 5 by selecti ng the appropr iate option (1-6) from the menu. For example, to chang e the baud rate to 2400 baud, send character "2" (Set baud rate).
66 CA UTION: If "Y" is sent before chang ing the configur ation dev ice to the new configuration (baud rate or parity ), Print Master w ill not receive the "Y " response. Howev er, you w ill be locked out of Print Master. If this occurs, recycle Print Master power.
67 !!# By r esponding to the Enter .
68 !! By r esponding to the Enter Request: me.
69 NOTE : At least one port must alw ays be designated as a pr inter port. If the port number you enter is the only assigned printer por t, Print Master will prev ent you from reassigning that port an.
70 !! & By r esponding .
71 !! By r esponding to.
72 " !! By r esponding to the En.
73 !! # By r espondin.
74 " Since there are no adj ustments and no movi ng parts i n Print Master, prev entative mai ntenance is unnecessary . If you find it necessary to return Print Master to the factory for war ranty work or factory- set changes, follow the procedure l isted under Section 9 for repacking.
75 # In the event that y ou have problems w ith y our Print M aster, BayTech has a staff of applicati ons engineer s on duty to assist y ou f rom 7 am to 6 pm (CST or C DT), Monday through Friday .
76 If you have q uestions that are not answered i n this manual, please contact BayTech Technical Suppor t for assistance. Bay Technical A ssociates, Inc. 200 N. Second Street, P.O. Box 387 Bay Saint Louis, Mississippi 39520 U.S.A . Phone: 228/467-8231 or 800/523-2702 FA X: 228/467-4551 We b S it e: www.
77 .
78 ) ! )!% .
79 MINIMUM CABLING USING HARDW ARE HANDSHAKING PC DTE MODEL 700 DCE FEMA LE D B-25 MAL E DB -25.
80 +(, RECOMMENDED CABLING USING HARDW ARE OR XON/XOFF HANDSHAKING PC DTE MODEL 700 DC.
81 MINIMUM CABLING USING HARDW ARE HANDSHAKING PC DTE MODEL 700 DCE FEMA LE D E-9 M ALE DB-2 5.
82 #$ RECOMMENDED CABLING USING HARDW ARE OR XON/XO.
83 PRINT MASTER PRINTER 36- PIN MAL E DB-2 5 CE NT.
A .5 700C MODELS - M ODULA R CA BLING COMPUTER INT E RFACE To interface your computers or termi nals to Print M aster refer to the RJ-45 adapter draw ings below . Refer to Figure 6 if your computer s or terminals hav e DB-25 mal e connectors. Refer to Figure 7 if your computers hav e DE-9 male connector s.
85 PRI NTE R/P LOTTE R IN TERFA CE To interface your EIA-232 serial printers or plotters to Print Master ref e r to Figure 8 . IMPOR TA N T : W hen modular connect or s ar e used as shown in Figur es 6 - 8 above, crossed RJ-45 cables are r eq uired. T he RJ- 45 cable, between Print Master and your connected equipment must be crossed.
86 ) ( !! Option 19 allow s up to nine (9) Print M aster 710C, 710E or 710F models to be cascaded allow ing you to i ncrease the number of avai lable ports.
87 ( Print Master s equipped w ith Option 19 (Cascade Option) are configured ex actly as described in Section 7.2 or Section 7.3 of this manual w ith the ex ception of SET UNIT ID NUMBER .
88 ( W hen the computer connected to Port 10 of a 710 model with Opti on 19 acces.
89 ( By r esponding to the Enter r equest: messag e at the end of the main configuration menu w ith "1" (Status), y ou may rev iew the current configuration status of Print Master.
90 ( By r esponding to the Enter r equest: messag e at the end of the main configurati on menu wi th "A" for models 710E and 710F or "9" for model 710C (Set U nit I.
91 ( To cable Print M asters equi pped wi th Option 19 together, connect Port 10 of a 710 havi ng a low er Unit ID N umber to port 9 of a 710 havi ng a hig her Unit ID Number w ith a male- to-male crossed cabl e (BayT ech part num ber MM0 9XYYY, wh ere YYY is the re quired length) .
92 The Unit ID Number and the pr inter por t number then become the default unit and printer assi gnment numbers for that computer. Al l subsequent print jobs sent w ithout a printer select sequence w ill be sent to this unit/pr inter port by def ault.
93 ) # Please check this troubleshooting guide before calling Bay Tech Tech Support. NOTE: This troubleshooti ng gui de is gear ed towar ds the IBM PC family and compati bles. The term "PC" as used below refers to any IBM PC, AT, XT or compatible.
94 CAUSE: Pri nt Master is connected to non-designated COM por t. SOLUTION: Make sur e Print Master is connected to designated PC COM port. C heck using TER M progr am. Turn Print M aster off and you should not see CTS/DSR li nes togg le if you are on a non-desig nated COM port.
95 PROBLEM: DA TA DOES NOT PRINT SYMPTOM: PC A ND PRINTER PORT LEDs ILLUMINA TE CAUSE: Printer cable. SOLUTION: Us e the correct paral lel or ser ial cable between Pr int Master and pr inter (s ee Appendix A ).
96 PROBLEM: PRINTS GA RBA GE SYMPTOM: MISSING CHA RA CTERS CAUSE: Incorr ect printer cabl e type. SOLUTION: See Appendix A for correct pinouts between Pr int Master and pr inter. Check handshaking. A w ay to check is to force an error condition at the pri nter (i.
97 SYMPTOM: RA NDOM GA RBA GE CHA RA CTERS CAUSE: Seri al port configur ation. SOLUTION: In Pri nt Master's configur ation mode, match baud rates, w ord siz e, stop bits, parity , and handshaking w ith the connected serial dev ice(s) . CAUSE: Cabl e length.
98 CAUSE: Software. SOLUTION: U se dumb terminal or a PC runni ng a terminal emul ation prog ram ( e.g, TERM supplied by Bay T ech or another pr ogram such as PC Plus). CAUSE: User activity . SOLUTION: W ait until curr ent activ ity betw een PC and printer is completed.
99 CAUSE: Y ou are in Pri nter Select Mode 1 w ith zero (0) ti meout. SOLUTION: Sw itch to Pri nter Select Mode 2 or increase timeout, both v ia conf iguration mode. NOTE: Any select sequence w ill not be recogni zed after 16 character s in Printer Select Mode 1.
100 CAUSE: Char acters used in Pr inter Select Code ar e too common and may i nadver tently appear somewher e in pri nt job. SOLUTION: Chang e Printer Select Code to a uniq ue character seq uence. PROBLEM: PRINT JOBS INTERMIX CAUSE: Ti meout period is too short.
101 PROBLEM: HOT KEY SOFTWA RE HA NGS UP PC WHEN EXECUTED. CAUSE: LPTX not rerouted for serial communication. SOLUTION: R eroute LPTX usi ng this command: MODE LPTX :=COM X. X =1, 2 or 3. CAUSE: Floati ng condition on D SR or CTS li nes. SOLUTION: U se the TERM pr ogram to check handshaking l ines.
102 ) ) Antenna 77 ASCII 4, 22, 31, 37, 39, 45, 48, 57, 60, 71 Asynchronous 3 Autoexec 9, 13, .
103 Control- C 47, 59, 73 Control- T 39, 40, 48, 50, 60, 62, 88, 97 CTS 5, 16, 17, 19, 29, 34, 36, 49, 50, 61, 62, 93, 94, 96, 101 Da.
104 Factory default 7, 9, 14, 20-24, 33, 91 FAX 76 FCC 77 Floating condition 101 Form feed mode 2-4, 12, 20, 23, 40, 41, 46, 50, 51, .
105 $!! Jumpers 93 Laserjet 3, 2, 37, 42, 82 LED 5, 12, 20, 33, 39, 48, 60, 93, 96 LEDs 5, 33, 39, 48, 60, 93, 95, 98 Logical name 3, 4, .
106 !! Non-pri ntable characters 45, 57, 71 Non-v olatile memor y 2, 4, 27, 42- 47, 54-59, 66, 67, 69-73, 90 Number of printers .
107 ! Queued 28 Rack-mount 5 RAM 54, 66 Ramexec 9, 11, 13, 14 Readme 9, 11, 13 Recommended cabling 15, 18, 78, 80, 82 Repacking 74 Ret.
108 Tech support 93 Technical Support 9, 75, 76, 95 Telev ision 77 Telex 76 Term 8, 48-50, 60-62, 93, 94, 97, 98, 101 Terminal emul a.
OTHER BAYT ECH PRODUCT S Print Mast er 700 Series printer contr ollers are made in sev eral different configurations satisfyi ng v arious inter face requirements. Each unit allow s computers to share, select and/or contend for printers easily and economicall y, w ithout sw itching cables.
LaserShare is an in te lligent printe r controller th at allows up to f our or eight computers to send data to a sing le HP LaserJet Series II, IID, III, IIID, Brother HL8e* and HL8v *, or W ang LDP8 laser printer . LaserShare MIO installs into the HP LaserJet Series IIISi, Series 4, and Series 4SI and will support serial speeds up to 460K bps.
Tran-x high speed parall el/serial converter products all ow y ou to extend par allel cables to 1000+ feet and allow your netw ork server , graphi cs wor kstation, or PC to send/r eceive data at speeds up to 46,000 characters per second.
Telplex Model TX104M is an asynchronous stati stical mult iplex er wi th built-i n modem. Four indiv idual communications channels ar e multiplex ed into a single dial- up or leased telephone l ine, cutting phone line costs to a mi nimum. The TX104M features a V.
500 SERIES MULTIPORT CONTROLLER S Included in the 500 Series line of multipor t controller s are units intended for the followi ng applic ations: Port Expansion (A -Series): Allows a sing le seri al port on a computer to indiv idually access up to 17 per ipheral dev ices with full duplex communication.
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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il HP 706A è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del HP 706A - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso HP 706A imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul HP 706A ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il HP 706A, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del HP 706A.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il HP 706A. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo HP 706A insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.