Olivetti PR4 SLIP Service Manual

PRINTER

PR4 SLIP

SERVICE MANUAL

Code XYAA6338

PUBLICATION ISSUED BY :

Olivetti Tecnost S.p.A.

Via Camillo Olivetti , 8 10011 Agliè ( Italy )

Printed in Italy by :

UPDATING STATUS

DATE CODE

02/2000 687780D-00

03/2004 XYAA6338

XYAA6338 Service Manual iii.

PREFA C E

This manual has been written for the field engineers who will be servicing the PR4 SLIP printer. It provides all the information needed to install and service these printer models.

SUMMARY

This manual is divided into seven chapters. The first four chapters provide the installation, functional check and adjustment procedures while the remaining

chapters provide the disassembly and adjustment procedures.

PREREQUISITES

Knowledge of similar products is helpful to better understand the topics discussed in this manual.

REFERENCES

User's Guide - (provided with the product) Spare Parts Catalogue : XYAA4789

DISTRIBUTION: General

FIRST EDITION: February 2000

XYAA6338 Service Manual v.

TABLE OF CONTENTS

1. OVERVIEW ......................................1-1

1.1 INTRODUCTION .................................1-1

1.2 OVERALL VIEW OF THE PRINTER.... 1-2

1.3 BLOCK DIAGRAM ............................... 1-3

1.4 INTERCONNECTIONS ........................ 1-4

1.5 POWER SUPPLY

CHARACTERISTICS ........................... 1-5

1.6 LAYOUT OF THE DRAWER AND .............

DISPLAY CONNECTORS.................... 1-6

1.7 INTERFACES ....................................... 1-7

1.7.1 RS-232 Serial Interface

Connector Layout ............................ 1-7

1.7.2 IEE 1284 Parallel Interface

Connector Layout ............................ 1-8

2. INSTALLATION ................................2-1

2.1 UNPACKING THE PRINTER ............... 2-1

2.2 CHECKING THE PACKAGING

CONTENTS ......................................... 2-2

2.3 REMOVING THE BLOCKAGES USED

FOR TRANSPORTATION .................... 2-3

2.4 INSERTING THE EXTERNAL

TRANSFORMER ................................. 2-4

2.5 CONNECTIONS .................................. 2-5

3. FUNCTIONAL CHECKS..................3-1

3.1 LEDS.................................................... 3-1

3.2 CONSOLE INDICATIONS .................... 3-2

3.3 SLIP TEST ........................................... 3-4

4. SETUP AND ADJUSTMENTS.........4-1

4.1 OPERATOR TEST ............................... 4-2

4.2 SETUP FROM THE CONSOLE ........... 4-2

4.2.1 Accessing this Setup Mode............. 4-2

4.2.2 Selectable Parameters .................... 4-3

4.2.3 Selecting the Parameters ................ 4-4

4.2.4 SET-UP Diagram

(Olivetti Serial Port Emulation) ........4- 5

4.2.5 SET-UP Diagram

(EPSON Serial Port Emulation) ......4- 6

4.2.6 SET-UP Diagram

(EPSON Parallel Por t Emulation) ....4-7

5. DISASSEMBLY/REASSEMBLY

PROCEDURES ................................5-1

5.1 OVERVIEW .......................................... 5-1

5.2 REMO VING THE CASE ....................... 5-1

5.3 LOCATING THE COMPONENTS

ON THE ELECTRONIC BOARD.......... 5-3

5.3.1 Main Board ........................................5-3

5.3.2 MICR Board....................................... 5-5

5.4 REMOVING THE PRINT ASSEMBLY .. 5-7

5.5 REMOVING THE PRINT HEAD ........... 5-8

5.8 REMOVING THE PLATEN ................... 5-9

5.7 REMOVING THE

CARRIAGE MOTOR .......................... 5-10

5.8 REMOVING THE RIBBON

MOVEMENT PIN ............................... 5-11

5.9 REMOVING THE DOCUMENT.................

DETECTION PHOTOSENSORS ....... 5-12

5.10 REMOVING THE SLIP DETECTION ........

PHOTOSENSORS ............................. 5-13

5.11 REMOVING THE LINE

FEED MOTOR ................................... 5-14

5.11.1 Basic Printer Version ...................... 5-14

5.11.2 MICR Version.................................. 5-14

5.12 REMOVING THE BOARDS ............... 5-15

5.12.1 Main Board .....................................5-15

5.12.3 Micr Board .....................................5-15

5.12.2 Drawer and Display Card...............5-15

6. ADJUSTMENTS ..............................6-1

6.1 ADJUSTING THE PLATEN ON

THE BASIC STRUCTURE................... 6-1

6.2 ADJUSTING THE PARALLELISM AND

PRINT HEAD-PLATEN DISTANCE...... 6-2

6.3 ADJUSTING THE TENSION OF THE

CARRIAGE TRANSPORT BELT .......... 6-2

6.4 MOUNTING THE SNAP RINGS

ON THE CARRIA GE

TRANSPORT ASSEMBLY ................... 6-2

6.5 ADJUSTING THE CLEARANCE

OF THE DOCUMENT

INSERTION SLOT ............................... 6-3

6.6 ADJUSTING THE PAPER DETECTION

PHOTOSENSOR ................................. 6-4

6.7 ADJUSTMENT MENU ......................... 6-5

6.7.1 Photosensor Adjustments ............... 6-6

6.7.2 Adjusting the Carriage.....................6 -8

6.7.3 MICR Adjustment .......................... 6-10

7. INST ALLING THE DRAWER

CARD OPTION ................................7-1

XYAA6338 Service Manual 1-1

1. OVERVIEW

1.1 INTRODUCTION

The PR4 SLIP is an impact printer specifically designed for the POS retail environment. It can print documents, cheques and receipts.

The documents to be printed are aligned automatically once inserted into the front slot.

Models equipped with the MICR option can read the bar codes on cheques. Cheques can also be printed upsidedown.

An electronic card drives a banknote drawer and is directly controlled by the printer's internal electronic board.

This printer model is compatible with the EPSON TMV 590 or OLIVETTI standard.

1-2XYAA6338

Fig. 1-1

CONSOLE

FRONT COVER

WINDOW

1.2 OVERALL VIEW OF THE PRINTER

FRONT

INSERTION

SLOT

PAPER

OUTPUT

XYAA6338 Service Manual 1-3

1.3 BLOCK DIAGRAM

MIC R reader*

Slip Paper Module

Printing module

* = specific version

Mechanical devices

Main board

Console

Power Supply

MICR reader board *

* = specific version

Electronics

Fig.1-2

1-4XYAA6338

1.4 INTERCONNECTIONS

Fig. 1-3

XYAA6338 Service Manual 1-5

1.5 POWER SUPPLY CHARACTERISTICS

The machine must be equipped with a power supply of the following characteristics:

DC VOLTAGE POWER 24 V +20 -10% 45 W (max. 75 W)

The following power supplies are optionally available to the user:

1) External AC power supply:

VOLTAGE POWER FREQUENCY 230 - 240 V 45 W (max 75 W) 50 - 60 Hz 115 - 230 V

2) Internal AC power supply:

VOLTAGE POWER FREQUENCY 115 - 230 V 40 W (max 75 W) 50 - 60 Hz

Power Supply Connector Drawing

1 +24 VDC 2 GND 3 Frame GND Shell Frame GND

PIN Number Signal name

1

2

3

Shell

1-6XYAA6338

1.6 LAYOUT OF THE DRAWER AND DISPLAY CONNECTORS

By means of the drawer and display option it is possible to drive a client drawer and display.

• Drawer Connector

Solenoid resistance 24 ohm min Output voltage 24 volts Current 1 amp Max Printer side connector Molex 52065-6615 or equivalent

1 Frame GND 2 Drawer kick-out drive signal 1 3 Drawer open/close signal 4 + 24 V 5 Drawer kick-out drive signal 2 6 Signal GND

With shielded

Drawer kick-out solenoid

Drawer open/close detection switch

XYAA6338 Service Manual 1-7

1.7 INTERFACES

1.7.1 RS-232 Serial Interface Connector Layout

• RS232 Connector - PIN functions

Pin Signal Dir

1 Frame GND — 2 TXD OUT Transmitter data

3 RXD IN Receiver data 4 RTS OUT Fix to ‘Space” level 6 DSR IN Space(+12)

the host can receive data

Mark(-12)

the host cannot receive data When DTR/DSR control is selected, the printer transmits data

after confirming this signal. When XON/XOFF control is selected, the printer does not check

this signal. If the signal remains Mark for more than 1msec the printer

performs a reset (only when selected from set-up).

7 Signal GND — 20 DTR OUT When DTR/DSR control is selected, this signal indicates whether

the printer is busy.

SPACE=OK/MARK=busy

When XON/XOFF control is selected, the signal indicates whether the printer is connected and ready to receive data.

SPACE=OK /MARK=busy The signal is always SPACE except during: HW reset, Self test, Set-UP

25 INIT IN The printer is reset when the signal remains Space for more

than 1msec (only when selected from set-up)

1-8XYAA6338

1.7.2 IEE 1284 Parallel Interface Connector Layout

Pin Signal Source

1 STROBX Host

2 to 9 DACX (0-7) Host/Printer

10 ACKX0 Printer 11 BUSYX Printer 12 PAPEMX Printer 13 SETOUX Printer 14 AUTLFX Host 15 FAULTX Printer 16 IMPRAX Host 17 SELINX Host

18 to 25 GND ___

XYAA6338 Service Manual 2-1

2. INSTALLATION

2.1 UNPACKING THE PRINTER

It is suggested that you carefully open the printer packaging and store it in a safe place so that it can be used again if the printer needs to be transported to another site. The printer is protected by a polyethylene covering.

Fig. 2-1

2-2XYAA6338

Fig. 2-2

2.2 CHECKING THE PACKAGING CONTENTS

In addition to the printer, the packaging always contains a ribbon cartridge

Depending on the order made by the client, the following options may be present:

A Power cord B External power supply C Front insertion tray

A

B

C

XYAA6338 Service Manual 2-3

Fig. 2-3

2.3 REMOVING THE BLOCKAGES USED FOR TRANSPORTATION

• Remove the plastic strip from the front feed slot.

• Open the front cover by turning it upwards.

• Remove the cardboard that blocks the print head.

• Close the printer cover.

2-4XYAA6338

2.4 INSERTING THE EXTERNAL TRANSFORMER

Proceed as explained below to insert the optional external transformer into the printer:

1. Attach the power cord to the external transformer.

2. Release tabs A and lift off cover B located at the rear

of the printer.

3. Insert the transformer into its chamber.

4. Reposition and close the cover.

Fig. 2-4

AB

XYAA6338 Service Manual 2-5

Fig. 2-5

2.5 CONNECTIONS

1. Attach the DC power cord to the related connector

underneath the printer.

2. Attach the serial interface cable to the related connector underneath the printer.

.

XYAA6338 Service Manual 3-1

3. FUNCTIONAL CHECKS

3.1 LEDS

There are five LEDs on the console indicating, respectively:

LED 1 - ON When on, indicates that the printer is powered. LED 2 - error When on, indicates that the printer crashed.

When flashing, indicates a mechanical error. (*)

LED 3 When on, indicates that the printer is waiting for a form to be inserted from the top.

LED 4 When on, indicates that the printer is waiting for a form to be inserted from the front.

LED 5 When on, indicates that a form was expelled from the top or from the front and has not

yet been removed.

(* ) Also see the section entitled

Console Indications

, which explains the error conditions signaled by the LEDs

(errors or malfunctions) and gives the appropriate corrective actions.

LED 2

LED 1

LED 4

CONSOLE

LED 5 (SLIP)

Each LED on the console can indicate a condition in any one of the following ways:

off

on flashing

The way in which the five LEDs come on indicates the different failures (errors or malfunctions).

LED 3

Fig. 3-1

KEY 1 KEY 2

3-2XYAA6338

Ref.Ref.

Ref.

LED Indications on the ConsoleLED Indications on the Console

LED Indications on the Console

Failure SignaledFailure Signaled

Failure Signaled

Corrective ActionCorrective Action

Corrective Action

3.2 CONSOLE INDICATIONS

Different failures (errors or malfunctions) are signaled on the console in the following ways:

• Error LED (LED 2) flashing

• Error LED (LED 2) flashing + other LEDs on

• Error LED (LED 2) on.

The following table summarizes all the possible LED indications:

77

7 Follow the table shown on the following page

Incorrect read from EPROM of the MICR reader adjustment value

Readjust the MICR

55

5 Incorrect read from EPROM of the carriage

position adjustment value

Readjust the position of the carriage

Incorrect read from EPROM of the photosensor adjustment parameters

Readjust the photosensors

Press any key to load the default values and readjust

33

3 Incorrect read from EPROM of the initial

SETUP values

22

2 Printer covers open Close the covers

11

1 a) Paper jam in the Slip path

b) Carriage blocked during reset c) Faulty cutter d) Hot print head

Remove the paper Make sure that the carriage slides freely Make sure that there is paper in the cutter Wait for the head to cool down

XYAA6338 Service Manual 3-3

For a detailed description of Ref. 7, press any key and the LEDs will assume one of the following configurations:

Ref. Ref.

Ref.

LED Indications on the ConsoleLED Indications on the Console

LED Indications on the Console

Failure SignaledFailure Signaled

Failure Signaled

Corrective ActionCorrective Action

Corrective Action

11

1 ROM test error

Replace the electronic board

22

2 RAM test error

See the related section

33

3 Faulty MICR

44

4 EPROM access failure Replace the electronic board (basic)

3-4XYAA6338

3.3 SLIP TEST

Activating this procedure makes it possible to check the efficiency of the slip alignment assembly.

Operator action:

Activate the slip test mode as described in Secton 4.

Printer action:

1. Mechanical reset

2. Waits for slip insertion

Operator action:

Insert the slips successively and check alignment.

XYAA6338 Service Manual 4-1

4. SETUP AND ADJUSTMENTS

Proceed as follows to setup and/or adjust the printer:

a. Open the printer's front cover. b. Press keys 1 and 2 simultaneously until an acoustic

signal is sounded.

c. Press keys 1 and 2 simultaneously again, until

another acoustic signal is sounded.

d. Close the printer's top cover.

An acoustic signal sounds and the three LEDs located on the lower part of the control console light to indicate when the printer switches to the initial status menu.

Pressing key 1 one or more times provides you with a light indication corresponding to the operation to be performed (refer to the table below that provides the correspondence between the light indications and the operations to be performed). Pressing key 2 grants access to the menu indicated by the LED combinations.

Ref.Ref.

Ref.

LED Indications on the Console LED Indications on the Console

LED Indications on the Console

Setup/Adjustment Operation SetSetup/Adjustment Operation Set

Setup/Adjustment Operation Set

22

2 Operator test

11

1 Initial state (Setup/adjustment mode)

33

3 Printer setup

44

4 Entrance into the Adjustment Menu

66

6 Auto read Micr

77

7 Slip test

55

5 Hexdump

4-2XYAA6338

4.1 OPERATOR TEST

If the printer's front cover is closed while the printer is in the Operator Test LED configuration (refer to the table on the previous page) and one of the two console keys is pressed, the printer's firmware release, defined setup parameters and character set configured will be printed on a sheet of paper.

4.2 SETUP FROM THE CONSOLE

4.2.1 Accessing this Setup Mode

The procedure to follow for accessing this Setup is explained in the section

Setup and Adjustments

and

informs how to obtain the LED configuration for setup. If the printer's front cover is closed (with the Setup

LED configuration) and one of the two console keys is pressed, the defined setup parameters, the functions of the keys in this mode and the titles of the main menus will be printed as shown in the example below:

FW REL. 2.00B VER. 002 MICR REL. 2.00 VER. 029

EMULATION: EPSON TM-U590 BIT: 8 BAUD: 9600 STOP: 1 PARITY: NONE HANDSHAKE: XON/XOFF NATION: CP 437 CPI: 16.6 CHEQUE PRINT: REAR AUTO LF: NO RECEIVE BUFFER: 2048 BUSY OFFLINE: YES HW RES PIN6: NO HW RES PIN25: NO TOP LOW: 1 FEEDER: FRONT

CONSOLE KEY FUNCTIONS: LEFT KEY1 NEXT ITEM RIGHT KEY2 SELECTS THE ITEM

I/O USER USER: NATION CPI OPTION OPTION: CHEQUE PRINT DISPLAY AUTO LF RECEIVE BUFFER BUSY HW RES PIN 6 HW RES PIN25 TOP LOW FEEDER EXIT USER: EXIT SAVE I/O USER SAVE SAVE: PRINT SAVE

Defined setup parmeters

Functions of the keys

Main menus

XYAA6338 Service Manual 4-3

See also the following sections:

•

Selectable Parameters

•

Selecting the Parameters

4.2.2 Selectable Parameters

The parameters that can be selected via Setup are grouped as indicated in the following diagram, which is similar to the one prined by the machine:

EMULATION

EMULATION: EPSON TM-U590

I/O

I/O: SERIAL - EXIT

SERIAL: BIT BIT: 8 - 7 SERIAL: BAUD BAUD: 9600 - 4800 -2400 -1200 SERIAL: STOP STOP: 1 - 2 SERIAL: PARITY PARITY: NONE - ODD - EVEN SERIAL: HANDSHAKE HANDSHAKE: DTR - XON/XOFF I/O: EXIT

USER USER: NATION - CPI - OPTION - EXIT

USER: NATION NATION: CP437 - CP850 - CP852 - CP858 -

CP860 - CP863 - CP864 - CP865 -

CP866 USER: CPI CPI: 12.5 - 16.6 USER: OPTION: CHEQUE PRINT: FRONT - REAR AUTO LF: NO - YES RECEIVE BUFFER: 45 - 2048 BUSY OFFLINE: NO - YES HW RES PIN6: YES - NO HW RES PIN25: YES - NO TOP LOW: 1 -2 - 4 - 6 - FULL FEEDER: FRONT - TOP

SAVE

SAVE: PRINT - SAVE - DEFAULT - RESTART

4-4XYAA6338

4.2.3 Selecting the Parameters

After accessing Setup as explained in the section

Accessing Setup

(Section 4.2.1), pressing one of the two buttons on the control console will cause the machine to print the first main menu.

By successively pressing the 1 - SKIP key, a new LED lighting sequence is initiated and a new menu is made available. This menu can only be accessed by pressing the 2 - OK key.

The selection of the LED lighting sequences is cyclical (see the table at the beginning of this chapter).

The selection of all the parameters needs to be completed in order to be able to exit from the Setup/Adjustment function.

XYAA6338 Service Manual 4-5

4.2.4 SET-UP Diagram (Olivetti Serial Port Emulation)

When switching to the SET-UP mode, the printer can be programmed as indicated in the following diagram:

enter

enter enter

enter

CP 437CP 220

skip

enter

I/O

Bit/char

Serial

enter enter

8 bit

7 bit

enter skip

skip

Baud rate 120048009600

enter

skip skip skip

skip

Stop 21

enter

skip

enter

Parity EON

enter

skip skip

skip

Handsh X/XDTR

enter

skip

UP

enter

skip

UP

User Nation

enter

skip

enter

CP 850

enter

CP 851

enter

CP 852

enter

skip

Cpi slip 12 15

enter

skip

enter

enter enter

enter enter enter

enter enter

AutoLF

enter enter

enter

skip

Busy

enter

YesNo

enter enter

skip

Options

enter

skip

UP

enter

skip

UP

enter

skip

2400

enter

Save

enter

Print

enter

skip

Save

enter

Stop

Default

Restart

Load Def.

skip

enter

skip

enter

skip

2

1TopLow 4 6

Full

enter

skip

enter

skip skip skip

skip skip skip skip

skip

CP 860CP 858

enter enter

CP 863

enter

CP 865

enter

CP 866

enter

skip skip skip skip

CP1252CP1250

enter

8859/1

enter

8859/2

enter

8859/15

enter

skip skip skip skip

skip

17.1

enter

skip skip

4-6XYAA6338

4.2.5 SET-UP Diagram (EPSON Serial Port Emulation)

With the printer in the Setup mode, select the parameters by following the flow charts provided below.

skip

enter

I/O

Bit/char

Serial

enter

8 bit

7 bit

enter

skip

Baud rate 1200

48009600

enter

skip skip skip

skip

Stop 21

enter

skip

enter

Parity EON

enter

skip skip

skip

Handsh X/XDTR

enter

skip

UP

enter

skip

UP

skip

Rx error PrintNoPri

enter

skip

enter enter

enter enter enter

enter enter

2400

enterskip

enter

Save

enter

Print

enter

Stop

Default

Restart

Load Def.

Cpi 16.612.5

enter

skip

enter

UP

Options

AutoLF

skip

Buffer

enter

Display

skip

Cheque

enter enter

YesNo

35 B

No

skip

enter enter

Rear

enter enter

skip

enter

Yes

skip

skip skip

Front

skip

2 kB

skip

Busy

skip

HWp25

HWp6

enter

enterenter

YesNo

enter enter

YesNo

enter

skip

User Nation

enter enter

enter

skip

CP 852 CP 858

skip

CP 863 CP 865 CP 866

enter

skip skip

CP 437

UP

enter

skip

enter

skip

Busy

skip

enter

Yes

No

enter enter

skip

HWp25

enter

skipskip

YesNo

skip

YesNo

enter

HWp6

skip

CP 437

User

Nation

enter

skip

enter

CP 858

Cpi

16.213.5

enter

skip

enter

UP

Options

AutoLF

enter enter

enter

skip

enter enterskip

skipskip

YesNo

skip

69 B2 kB

skip

enter

Buffer

skip

enter

Emulation

Epson 295

enter

Epson 590

CP 860

skip

enter

UP

skip

TopLow

enter

enterenter

enter

skip

2

1

4

6 Full

skip

enter

skip

enter

Save

skip

enter

skip

UP

skipskip

enter

skip

enter

skip

enter

Save Se t

enter

skip

Feeder

enter

TopFront

enter

skipskip

XYAA6338 Service Manual 4-7

4.2.6 SET-UP Diagram (EPSON Parallel Port Emulation)

With the printer in the Setup mode, select the parameters by following the flow charts provided below.

Save

enter

Print

enter

Stop

Default

Restart

Load Def.

Cpi 16.612.5

enter

skip

enter

UP

Options

AutoLF

skip

Buffer

enter

Displa

y

skip

Cheque

enter enter

YesNo

35 B

No

skip

enter enter

Rear

enter enter

skip

enter

Yes

skip

Front

skip

2 kB

skip

Bus

y

skip

HWp25

HWp6

enter

YesNo

enter enter

YesNo

enter

skip

User

Nation

enter enter

enterskip

CP 852 CP 858

skip

CP 863 CP 865 CP 866

enter enter

enter

skip skip

CP 437

UP

enter

enterenterskip

enter

skip

Bus

y

skip

enter

YesNo

enter enter

skip

HWp25

enter

skip

YesNo

skip

YesNo

enter

HWp6

skip

CP 437

User

Nation

enter

skip

enter

CP 858

Cpi 16.213.5

enter

skip

enter

UP

Options

AutoLF

enter enter

enter

skip

enter enterskip

skip

YesNo

skip

69 B2 kB

skip

enter

Buffer

skip

enter

Emulation

Epson 295

enter

Epson 590

CP 860

skip

enter

UP

skip

TopLow

enter

skip

21

4

6 Full

skip

enter

skip

enter

Save

skip

enter

skip

UP

skip

enter

skip

enter

skip

Save Set

enter

skip

Feeder

enter

TopFront

enter

skip

.

XYAA6338 Service Manual 5-1

5.1 OVERVIEW

This chapter is divided into two parts which describe how to disassemble/reassemble the parts and how to make the related adjustments.

Before proceeding with any operation, power off the printer and unplug it from the electrical outlet.

5. DISASSEMBL Y/REASSEMBLY PROCEDURES

5.2 REMOVING THE CASE

• Open the front and rear covers by rotating them completely around their respective hinges .

• Remove the ribbon cartridge.

• Extract the console by gently pushing it upwards.

• Manually remove the Closed cover detection microswitches.

RIBBON CARTRIDGE

CLOSED COVER DETECTION

MICROSWITCHES

CONSOLE

Fig. 5-1

5-2XYAA6338

Fig. 5-2

• To remove the printer case, proceed in the direction shown by the arrows in the figure below. After manually releasing the case from the base of the machine, slide it upwards.

XYAA6338 Service Manual 5-3

5.3 LOCATING THE COMPONENTS ON THE ELECTRONIC BOARD

5.3.1 Main Board

F4

F11

F9

5-4XYAA6338

LEGEND:

Ref. Description

F4 SLIP motor fuse F9 Main fuse F11 Carriage motor fuse J6 Display/drawer board connector J7 Needle head connector J8 Slip motor connector J17 Slip photo connector J18 Paper photo connector J21 Power supply connector J22 MICR board connector J24 Console connector J28 Carriage motor connector J29 RS 232 serial interface connector

U1,U2 Needle drivers U5,U6 Carriage motor drivers UC1 ASIC US2 E2PROM US4 RAM US13 +5V regulator US14 RS232 serial interface driver US19 Slip motor driver US21 LM 358

UC1 Custom US6 Microprocessor

XYAA6338 Service Manual 5-5

5.3.2 MICR Board

5-6XYAA6338

LEGEND:

Ref. Description

J1 To main board J5 N.U. J6 Head connector

UR1 RAM US8 Microprocessor US10 EEPROM

XYAA6338 Service Manual 5-7

2

Fig. 5-3

1

5.4 REMOVING THE PRINT ASSEMBLY

• Remove the case (Section 5.2).

• Loosen screws 1 and 2 and then lift the machine off its base (Fig. 5-3).

• Detach the yellow ground wires.

• Disconnect all the connectors from the electronic board and separate the machine from the base.

• To reassemble follow the disassembly procedures in reverse order giving special consideration to the hooking points shown in the figure.

5-8XYAA6338

1

Fig. 5-4 Fig. 5-5

5.5 REMOVING THE PRINT HEAD

• Remove the case (Section 5-2).

• Remove screw 1.

• Remove the two boards to which the power supply flat cable is connected as shown in Figure 5-4.

• Proceed as explained in Section 5.3 to access the electronic board and therefore disconnect the flat cable from connector J7 on this board.

• To completely extract the print head and related flat cable remove the board shown in Figure 5-14; gently bend this board so that it can be removed.

• To reassemble follow the disassembly procedure in reverse order.

Note: After replacing the head readjust the parallelism

and the distance between the print head and platen (Section 6.2)

XYAA6338 Service Manual 5-9

SCREW A

SCREW B

Fig. 5-6

SCREW C

BRACKET

PLATE

PLATEN

5.8 REMOVING THE PLATEN

• Remove the case (Section 5.2).

• Remove the print assembly (Section 5.4).

• Extract the plate by sliding it from the front (head side).

PROCEED VERY CAREFULLY.

• Remove the bracket and unscrew screws A, B, C. You can remove the platen in the direction of the arrow shown in the figure.

• To reassemble the platen follow its disassembly procedure in reverse order and align as shown in the figure.

Note: After replacing the head readjust the parallelism

and the distance between the print head and platen (Section 6.2).

5-10XYAA6338

Fig. 5-7

5.7 REMOVING THE CARRIAGE MOTOR

• Remove the case (Section 5.2).

• Proceed as explained in Section 5.4 to access the

print assembly.

• After having removed the plastic board, remove screws A and B so that you can then remove the motor.

SCREW B

SCREW A

CARRIAGE MOTOR

XYAA6338 Service Manual 5-11

EXCHANGER

FLAT CABLE

GUIDE BOARD

Fig. 5-9

Fig. 5-8

BRACKET

5.8 REMOVING THE RIBBON MOVEMENT PIN

• Remove the printer front cover.

• Remove the flat cable guide board upwards

(Fig. 5-8), after having removed the bracket.

Remove the exchanger using a pair of pliers (Fig. 5-9). The pin is now free and can be removed by pulling it upwards.

5-12XYAA6338

CARRIAGE MOTOR

SECURING SCREWS

Fig. 5-10 Fig. 5-11

PHOTOSENSORS

5.9 REMOVING THE DOCUMENT DETECTION PHOTOSENSORS

• Remove the case (Section 5.2).

• Remove screws 1 and 2 (Sections 5-4) and then

disconnect all the connectors from the electronic board so that the machine can be separated from the base.

• Remove the carriage motor (Section 5.7) as shown

in Figure 5-10.

• Remove the photosensors by extracting them

from their slots with a screwdriver (Figure 5-11).

XYAA6338 Service Manual 5-13

Fig. 5-12

5.10 REMOVING THE SLIP DETECTION PHOTOSENSORS

• Remove the case (Section 5.2).

• Remove the print assembly (Section 5.4).

• Remove the paper guide plate in order to be able to

access the photosensor assembly.

PROCEED VERY CAREFULLY.

• Remove the assembly by unscrewing the securing screw shown in the figure.

Note: The photosensor assembly must be adjusted

with respect to the platen as explained in the section Adjusting the Photosensors (Section 6.6.1).

PLATE

PR4

SECURING SCREW

SLIP DETECTION PHOTOSENSORS

5-14XYAA6338

5.11 REMOVING THE LINE FEED MOTOR

5.11.1 Basic Printer Version

• Remove the case (Section 5.2).

• Remove gears A and B after removing circlips C.

• Remove the line feed motor securing screws 1 and 2 (Fig. 5-13).

• Remove motor D.

A

1

B

2

D

Fig. 5-13

5.11.2 MICR Version

• Remove the case (Section 5.2).

• Remove both screws A (Fig. 5-13) and slide off motor B.

Fig. 5-14

A

C

B

XYAA6338 Service Manual 5-15

5.12 REMOVING THE BOARDS

5.12.1 Main Board

• Remove the case (Section 5.2).

• Lift the printer's mechanical assy.

• Disconnect all connectors.

• Remove screw A and then extract the main board very carefully (Fig. 5-15).

Fig. 5-15

5.12.2 Drawer and Display Card

• Remove the case (Section 5.2).

• Lift the printer's mechanical assy.

• Disconnect the connector.

• Extract the main board very carefully (Fig. 5-15).

Drawer and display card

Main board

5.12.3 Micr Board

• Remove the case (Section 5.2).

• Disconnect all connectors.

• Remove screws A and then remove the Micr board.

Screw A

Micr Board

Fig. 5-16

A

.

XYAA6338 Service Manual 6-1

6. ADJUSTMENTS

The following sections describe the adjustments to be made on the different printer assemblies.

6.1 ADJUSTING THE PLATEN ON THE

BASIC STRUCTURE

After replacing the platen check the parallelism between the platen and the basic structure. Parallelism with the carriage guide plate is obtained using a caliber and by adjusting the three securing screws (tolerance of + 0.1mm).

Note: After making this adjustment it is mandatory

that you follow the procedure described in Section 6.2.

Fig. 6-1

6-2XYAA6338

Fig. 6-2

Fig. 6-3

Fig. 6-4

6.4 MOUNTING THE SNAP RINGS ON THE CARRIAGE TRANSPORT ASSEMBLY

During the assembly of codes 474067T, 474059B and 474026J, snap ring code 474241E must have a clearance of 0.1 - 0.2 (Fig. 6-4). Clearance is obtained by inserting a probe between the snap ring and the stop point.

6.2 ADJUSTING THE PARALLELISM AND PRINT HEAD-PLATEN DISTANCE

By means of friction screws 923010Q, higher or lower the plate code 474031P until obtaining the parallelism between the print head and platen. Then check, using a probe, for a clearance of 0.33 - 0.37 mm between the needle profile and platen code 474018S (Fig 6-2).

Perform the adjustment procedure always maintaining points A in contact with each other.

6.3 ADJUSTING THE TENSION OF THE CARRIAGE TRANSPORT BELT

Pulling the end pulley support bracket with a dynamometer in the direction of the arrow, tighten the transport belt until reaching a value of 2 Kg + 50 gr. Using the screw code 923033B, block the bracket code 475479E on the structure (Fig. 6-3).

A

XYAA6338 Service Manual 6-3

6.5 ADJUSTING THE CLEARANCE OF THE DOCUMENT INSERTION SLOT

Using a specific probe, make sure that there is a clearance of 2.5 mm between the frame shield code 474030S and the frame in zama code 474017R.

Fig. 6-5

6-4XYAA6338

6.6 ADJUSTING THE PAPER DETECTION PHOTOSENSOR

Once bar parallelism is performed, place an 0.5 mm thick plate between the rollers code 474041Z and code 474037M. Move the photo assembly code 475478D in contact with the plate and then tighten screw code 924966Q.

Fig. 6-6

XYAA6338 Service Manual 6-5

Fig. 6-7

LED 4

Key 5

Key 2

6.7 ADJUSTMENT MENU

To enter into the Adjustment Menu follow the instructions explained in Section 4.

After the mechanical reset performed once the menu is entered, the console will assume the following configuration:

LED 2 ON LED 3 OFF LED 4 OFF

The adjustment mode can be accessed by pressing key 2 (OK); an acoustic signal will sound to indicate when the printer is in this mode.

The keys have the following functions Key 1 (left) ___________ SKIP

Key 2 (right) _________ OK

An acoustic signal will sound and the configuration of the LEDs will change each time key 2 (OK) is pressed, as indicated in the following table:

LED 2 LED 3 Adjustment

ON ON Photosensors

ON OF F Micr OFF ON Carriage OF F O FF Exit

LED 1

LED 2 LED 3

Key1

6-6XYAA6338

Flashing LED 3

6.7.1 Photosensor Adjustments

After a reset the carriage moves to the far left position where the first phase of the adjustment procedure is carried out and which consists of multiple reads of the photosensors in out of paper conditions.

The console assumes the following configuration during this phase:

Fig. 6-8

Operator Action

1. Insert the sheet of paper trying to keep it aligned to the right as much as possible.

2. Press key 1 (SKIP).

Fig. 6-9

Printer Action

1. The carriage will move to the pressed roller position.

Operator Action

1. Release the paper.

LED 1

LED 2

LED 4

Key 5

LED 3

Key 1

Key 2

LED 1

LED 2

LED 4

LED 5

LED 3

Key 1

Key 2

XYAA6338 Service Manual 6-7

Fig. 6-10

Operator Action

1. Press key 2 (OK):

Fig. 6-11

LED 1

LED 2

LED 4

LED 5

LED 3

Key 1

LED 1

LED 2

LED 4

Key 5

LED 3

Key 1

Printer Action

1. Moves the paper in position, covering all the photosensors.

2. Performs the second part of the adjustment which consists of multiple reads with paper present.

3. Stores in EEPROM the current and threshold values detected during the adjustment.

4. Prints the previous and new values on paper.

5. Ejects the paper.

6. Returns to the Adjustment Menu of Fig. 6-7.

Console Configuration:

Flashing LED 4:

Key 2

6-8XYAA6338

Photosensor Adjustment Errors

Any error detected is signalled by the flashing of the console LEDs in the following way:

LED 2 LED 3 LED 4 LED 5 Photosensor Error

Blink Off Off O ff Upper

Off Blink Off Off Lower Off Off Blink Off Slip 1 Off Off Off Blink Slip 2

In case of error press Key 2 (OK) to return to the initial configuration.

6.7.2 Adjusting the Carriage

The carriage adjustment procedure consists of two phases:

1. Carriage reset photosensor adjustment.

2. Slip alignment position adjustment.

Printer Action

1. Acoustic signal indicating entrance to the Adjustment Mode.

2. Reset photosensor adjustment.

3. Storage of the values in EEPROM and an acoustic signal indicating OK.

4. Printing on a receipt of the current values of a blank, refracting photosensor and the previous threshold values.

5. Printing on a receipt of the previous carriage

position adjustment value.

6. Printing on a receipt of the new current values of

a blank, refracting photosensor with respective threshold.

Carriage Adjustment Errors

Any error is signalled by the following console LED patterns:

LED 2 LED 3 LED 4 LED 5 Error

Blink Off Off Off Photo trans. not detected

Off Blink Off Off Positioning error Off Off Blink Off Gap lower than 3 V

Fig. 6-12

LED 1

LED 2

LED 4

LED 5

LED 3

Key 1

Key 2

XYAA6338 Service Manual 6-9

LED 2 LED 2 LED 4 LED 5 Error

Off Off Off Blink Carriage reset error

Otherwise:

Printer Action

1. The carriage moves to the mechanical reference to drag the alignment roller.

2. Continuous acoustic signal.

Operator Action

1. Open the front cover.

2. Remove the cartridge.

3. Make sure the triangle (indicated in “Area A” on the right-hand side of the carriage code 474063X) is aligned with the index mark on the head adjustment plate code 474031P.

4. If it is not aligned:

• Press key 1 (SKIP) and move it to the left.

• Press key 2 (OK) and move it to the right.

5. When the triangle is in the correct position, close the front cover.

Printer Action

1. Stores the value in EEPROM.

2. Acoustic signal indicating that adjustment is complete.

Repeat the operation, which cannot be considered as a check since the carriage will always start from a fixed position with disaligned references. The operation must therefore be correctly completed before a check can be made.

Operator Action

1. Open the front cover.

2. Refit the cartridge.

3. Close the cover.

Printer Action

1. Return to the Adjustment Menu of Fig. 6-7.

Fig. 6-13

Printer Action

1. Performs a mechanical reset with the values calculated during the procedure.

Any error detected by the printer will be signalled as follows:

6-10XYAA6338

6.7.3 MICR Adjustment

This adjustment must be made using the MICR calibration card code 474245 A (special check) on which the reference value is printed on the center bottom part of the card. Before beginning, make sure that the paper rolls are installed since the printer will have to print the values referring to the calibration card.

First part of the calibration procedure:

Printer Action:

• Prints a message indicating entrance to the calibration procedure. (ADJ MICR)

• Prints the first range of reference values of the following table.

80 - 84 <=== 85 - 89 <=== 90 - 94 <=== 95 - 99 <=== 100 - 104 <=== 105 - 109 <=== 110 - 114 <=== 115 - 120 <===

Operator Action:

By pressing KEY 1 (SKIP) the values indicated in the table are progressively printed. When the reference value of the calibration card is included within the range of values printed by the PR4, press KEY

2 (OK) and perform the second part of the calibration cycle.

XYAA6338 Service Manual 6-11

Fig. 6-14

Fig. 6-15

Fig. 6-16

LED 1

LED 2

LED 4

LED 5

LED 3

Key 1

LED 1

LED 2

LED 4

LED 5

LED 3

LED 1

LED 2

LED 4

LED 3

Key 1

Second part of the calibration procedure :

Console configuration:

Flashing LED 5

Operator action:

Insert the check

Printer action:

Inserts the check

Console configuration:

Flashing LED 3:

Operator action:

Press KEY 1 (OK)

Key 2

Key 1

Key 2

LED 5

Key 2

6-12XYAA6338

Printer action:

Performs a read cycle.

Calibration is performed by carrying out the second part of the calibration procedure FIVE TIMES. The operator must therefore insert the check five times.

Upon completion the outcome of the calibration procedure will be printed:

OK Calibration OK A/D saturation Too many peaks Too many peaks (noise) Verify head Verify head connection (inverted) Not OK

XYAA6338 Service Manual 7-1

Fig. 7-1

• Open the machine by following the procedure described in Section 5.2.

• Insert the card A into the appropriate slots B on the printer base (see Figure 7-1) and then attach one end of the connection cable to connector C on the card and the other end to connector J9 on the main board.

A

7. INST ALLING THE DRAWER

CARD OPTION

J9

.

B

C

Olivetti PR4 SLIP Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual