Fujitsu ULTIMA90 Manual de usuario

ULTIMA90/ULTIMA90 +/Impact4550 Pro

DOT MATRIX PRINTER

MAINTENANCE MANUAL

CHAPTER 1

PRINTER SPECIFICATIONS, CONFIGURATION

PERFORMANCE, AND

1.1 Overview

This manual is for maintenance engineers, and covers overall DL7600 printer maintenance, together with

detailed information such as troubleshooting and component replacement.

The maintenance manual is described b the premise that understands the user's manual. Please

also refer to the following manual if needed.

DL7600 Printer USER’S MANUAL (C147-E052-01EN)

DL7600 Printer Product Description (A1KA02039-B001/E)

DL 7600 printer has a reliable, simple mechanism requires little maintenance.

1.2 Equipmen S ruc ure

1.2.1 Overview

This section outlines printer structure and features.

1.2.2 Model configura ion

The DL7600 printer is a 136-column printer.

Factor options are as follows

Power Suppl t pe; 100-120VAC input(M33325A)

220-240VAC input(M33325B)

Interface t pe; Centronics parallel + USB interfaces

Centronics parallel + RS232C serial interface

Add-on options are as follows.

Cut sheet feeder. (The SF940 single-bin feeder)

Tractor unit. (for a second tractor).

LAN card. (onl for the Centronics parallel + USB interfaces Models.)

Large paper table. Small paper table Large stacker.

The DL7600 has three emulations as follows.

Fujitsu DPL24C PLUS

IBM Proprinter XL24E

Epson ESC/P2

1.2.3 S ruc ure

Major printer components are organized as shown below. Items in boldface are recommended spare parts

(see Chapter 6) that can be replaced in field b maintenance service engineers. Replacement and adjustment

are detailed in Chapter 4.

Fig re 1.1 Str ct re of DL7600

Block diagrams

The following figure shows printer functional components and connecting cables.

DL7600 printer

Stacker Unit

Mecha assembl

Ribbon cartridge

Tractor unit

Cut-sheet feeder

Front Cover assembl

Operating panel

Upper Cover assembl

Print Head

ROM board

Power suppl

Lower cover assembl

AC SWITCH assembl

AC INLET assembl

Components that operator can install and remove.

Frame

Carrier Unit Tof L/R sensor

Aptc sensor

Carrier Cable

L/RES sensor

SP motor

LF motor

APTC motor

Connector Board

Inter Lock SW

HCPP motor

PS Sensors

FTRPE Sensors

RTRPE Sensors

APTCHP SW

HCPPHP SW

Stacker plate

Paper Table assembl

TR motor

Nip Roller assembl

Dv Roller assembl

Platen Roller assembl

LAN CARD

Reactor RF motor

Fig re 1.2 Block Diagram of DL7600

(1)Ex erior componen s

This section gives information on exterior components of the printer: covers, removable mechanism units,etc.

Fig re 1.3 Exterior components of DL7600

a. Interface Connector

The interface cable connector is on the right side of the printer, as seen from the front of the upper cover, so

the interface cable does not interfere with the paper feed path.

Print head

Power switch

Soundproof cover Tractor unit

Front CSF connector

Interface

connector

Control panel

Front cover

Upper cover

Ribbon cassette

Rear

stacker

Power connector

Rear CSF connector

Fig re 1.4 Interface type of DL7600

b. Upper cover

The bottom cover and the upper cover are fixed with a back screw.

b. Front cover

The front cover is opened to replace the ribbon cartridge. There

is an Interlock SW for safet .

c. Soundproof cover

Soundproof cover is opened when the continuous form is set.

How to handle refer to the Quick Start Guide or User’s Manual.

d. Rear stacker

The rear stacker holds printed cut sheets.

The optional Large Stacker is necessar to use cut sheets exceeding 297 mm in length

e. Control panel

[LED t pe]

The control panel consists of an LSI, 10 push-button switches, 1 dial, 13 LEDs, and a buzzer.

The switches are used for operations such as loading and feeding paper and controlling printing pressure.

Some switches are also used in setup mode. The LEDs indicate printer basic statuses and paper feed path

conditions. The buzzer sounds to indicate certain operating and printer statuses.

[LCD t pe]

The control panel consists of an LSI, 11 push-button switches, 1 LCD, 8 LEDs, and a buzzer.

The switches are used for operations such as loading and feeding paper and controlling printing pressure.

Some switches are also used in setup mode. The LEDs indicate printer basic statuses and paper feed path

conditions. LCD displa s the state of the printer. The buzzer sounds to indicate certain operating and printer

statuses.

[LED t pe]

RS232c Serial Connector

Centronics parallel Connector

Clip

USB Connector

LAN Connector Option

The ferrite core that

Comes with the LAN

Card must be attached.

[LCD t pe]

Fig re 1.5 Control panel of DL7600

(2)Prin ing mechanism

HCPP motor

Stepping motor for

Carriage

drive mechanism

Carriage

Sta shaft

Ribbon cartridge

Print head

Fig re 1.6 Mechanism of DL7600

The printing mechanism fit into the bottom cover. And Upper Cover holds it in position.

a. Carriage

The carriage supports the removable 24-wire print head, and slides left and right on the sta shaft.

The ribbon feed gear s stem moves the ribbon in one direction regardless of carriage movement. It

has four sensors: LRES, TOFL, TOFR and APTC sensor. The LRES detects both left and right ends

of the carriage movement. The TOFL/R detects the edge (top, left, right, bottom) of paper. The APTC

sensor detects the surface of paper for control the gap between the print head and the paper.

b. Carriage drive mechanism

The sta shaft and the sta guide (upper angle) support the carriage; the stepping motor and timing belt move

the carriage horizontall .

c. Paper feed mechanism

There are two stepping motors. One of them drives the rollers and another one drives tractors.

d. Host-controlled paper path (HCPP) mechanism

The HCPP mechanism switches power transmission to the tractors. Three states are possible: front tractor is

selected, rear tractor is selected, and cut sheet is selected. Switching is possible through software or b the

control panel. The paper on the platen is unloaded to the park position or ejected, and then the paper feed path

is switched. When switching from a cut sheet to continuous forms, the continuous forms are automaticall

loaded to the print position.

e. Automatic paper thickness control (APTC) mechanism

The APTC mechanism adjusts the gap between the print head and the paper surface. Before start printing, the

print head is approach to the platen until APTC sensor is pressed against the paper surface. And then the print

head is returned b a certain distance so that the gap (actuall between the print head and the paper) is

properl adjusted regardless of the paper thickness.

f. Paper sensors

HCPP mechanism

Paper feed mechanism

APTC mechanism

There are six paper sensors for controlling paper feeding:

Name F nction Sensor type

TOFL

TOFR

Detect the top edge for paper loading

-TOFL is for front loading

-TOFR is for rear loading

Detect left and right edge for area over control

-TOFL is for left and right edge (small width paper)

-TOFR is for right edge (large width paper)

(Right and left are reversed for rear feed)

Detect the bottom edge for detecting paper end.

-TOFL is for front loading

-TOFR is for rear loading

Photo reflectors

FTRPE

RTRPE

Detect the continuous forms at the tractor for as

follows.

-Control the paper loading sequence.

-Detect the paper parking position.

-Detect the near paper end of continuous forms.

Photo interrupter

PSS

Detect the cut sheet on the paper table for auto

Detect the bottom of the cut sheet for control carriage

position to detect the paper end .

Detect the leaved paper on the paper table for displa

remove paper indicator.

Photo reflectors

APTC

Detect the surface of the paper for control the print

head gap.

Panel Ke Board

(3) Lower cover

Fig re 1.7 Electric components of DL7600

a. Lower cover

The Lower cover supports the printer mechanism and electric units as follows.

b. ROM board (control board with flash ROM)

The ROM board controls the host interface, control panel, and printing mechanism using an MPU and an

LSI circuit. Memor holds the resident character patterns and firmware, including resident emulation

programs. This board also has drivers and receivers for other components. The sensor receivers convert

signals from the sensors. The drivers suppl power to motors, print head wires, and other components. LAN

rela board is connected to this board through the cable.

c. Power suppl unit

The power suppl unit supplies DC40V and DC5V b two transformers.

Two transformers realize that printer displa s fatal alarms though printer shuts down DC40V. (Even

if DC40V is shut down, DC5V still remains. )

d. AC inlet and AC switch.

The AC inlet has protective earth cable. In order to prevent an electric shock, it must be fixed to frame ground.

The AC switch has cables to connect the Power suppl unit and AC inlet.

e. CSF connector (front CSF)

The connector board for the front CSF is mounted at the front right of the lower over.

(4) Op ion and consumables

a. Cut-sheet feeders

Lower cover

ROM board

Power suppl unit

AC inlet

AC inlet CSF connector

Reactor

onl 200v) (

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