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Sharp AL-1020 User Manual

Sharp AL-1020
30 pages
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SERVICE MANUAL
CODE: 00ZAL1250/A1E
DIGITAL COPIER
AL-1020
AL-1200
AL-1220
MODEL
AL-1250
* This Service Manual describes only the differences from
the AL-1000/1010. For the common items with the
AL-1000/1010,please refer to the AL-1000/1010 manual.
CONTENTS
SHARP CORPORATION
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
Parts marked with " " is important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safty and performance of the set.
[ 1 ] GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1
[ 2 ] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
[ 3 ] EXTERNAL VIEWS AND INTERNAL STRUCTURE. . . . . . . . . . . . 3 - 1
[ 4 ] UNPACKING AND INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
[ 5 ] OPERATIONAL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 1
[ 6 ] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 2
[ 7 ] SIMULATION,TROUBLE CODES . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
[ 8 ] USER PROGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 1
[ 9 ] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 1
[10] CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 1
PARTS GUIDE
AL-1250
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Sharp AL-1020 Specifications

General IconGeneral
Printing TechnologyLaser
Copy Resolution600 x 600 dpi
Warm-up Time30 seconds
Standard Paper Capacity250 sheets
Bypass Tray Capacity1 sheet
Copy Speed20 ppm
Maximum Copies99
Paper SizeA4, B5, A5, Letter, Legal
Zoom Range50% to 200%

Summary

General Information

General Description

This model is a digital personal copier offering comfort, clarity, and ease of use.

Target User Copy Volume

Specifies monthly average copy and print volumes for target users.

Key Features Overview

Highlights copier capabilities like speed, quality, functions, and printer feature.

Environmental Operating Conditions

Specifies temperature and humidity requirements for optimal operation and storage.

Specifications

Basic Specifications

Details physical dimensions and weight for different models.

Operation Specifications

Covers paper feed system, power source, and installed memory.

Copy Performance

Provides detailed copy speeds, void area, and image loss specifications.

GDI Printer Specifications

Lists printer speed, first print time, and OS compatibility for GDI printing.

Other Features

Explains SOPM function and 2nd cassette door behavior.

External Views and Internal Structures

External Appearance Diagrams

Illustrates external parts and their locations on the copier.

Internal Components Diagrams

Shows the layout and identification of internal parts.

Operational Panel Overview

Details the function of each button and indicator on the control panel.

Motors and Solenoids

Identifies and describes the function of key motors and solenoids.

Sensors and Switches

Lists sensors and switches and their respective functions and outputs.

PWB Unit Identification

Identifies the main Printed Wiring Boards (PWBs) and their functions.

Cross-sectional View

Explains the internal paper path and component operations.

Unpacking and Installation

Installation Precautions

Advises on proper placement and environmental considerations for installation.

Component and Accessory Check

Lists items to verify are included after unpacking.

Unpacking and TD Cartridge Installation

Step-by-step guide for unpacking and installing the TD cartridge.

Loading Copy Paper and Power Connection

Instructions for loading paper and connecting power to the copier.

Operational Descriptions

SPF Section Overview

General description of the Single Path Feeder (SPF) unit.

SPF Document Path and Composition

Diagram of the SPF document handling path and its components.

SPF Operational Flow

Step-by-step operational flow of the SPF unit.

Disassembly and Assembly

SPF Unit Disassembly and Assembly

Detailed steps for disassembling and reassembling the SPF unit.

2nd Cassette Unit Disassembly

Steps for disassembling the optional 2nd cassette unit.

Simulation Trouble Code

Simulation Contents Overview

Lists available simulation codes and their respective displays.

SPF and Cassette Settings

Procedures for setting SPF and second cassette configurations.

Void and Detection Adjustments

Settings for side void amount and SPF document rear edge detection.

Image Position and Offset Adjustments

Adjustments for lead edge position and center offset.

Resist Amount and Self-Print Testing

Procedures for adjusting resist amount and performing self-print tests.

User Program

Settable User Program Functions

Lists functions that can be customized by the user.

Changing User Program Settings

Procedure for modifying user program settings.

AE and Toner Save Adjustments

Settings for exposure levels and toner save mode.

Electrical Section

Overall Electrical Block Diagram

High-level schematic of the copier's electrical system.

Main PWB Block Diagram

Detailed block diagram of the Main Printed Wiring Board (PWB).

Circuit Descriptions and Signals

Explains CPU, ASIC signals, and input signals for electrical operation.

Mirror Motor Circuit

Details the control circuit for the mirror motor.

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