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SERVICE MANUAL
CODE : 00ZAL1457/A1E
DIGITAL LASER COPIER/
DIGITAL MULTIFUNCTIONAL
SYSTEM
(AL-1457)
AL-1217
MODEL AL-1457
CONTENTS
[ 1 ] GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1
[ 2 ] SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
[ 3 ] CONSUMABLE PARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1
[ 4 ] EXTERNAL VIEWS AND INTERNAL STRUCTURES . . . . . . . . . 4 - 1
[ 5 ] UNPACKING AND INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . 5 - 1
[ 6 ] COPY PROCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1
[ 7 ] OPERATIONAL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
[ 8 ] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . 8 - 1
[ 9 ] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 1
[10] SIMULATION, TROUBLE CODES . . . . . . . . . . . . . . . . . . . . . . . 10 - 1
[11] USER PROGRAMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 1
[12] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 1
[13] CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 1
Parts marked with " " are important for maintaining the safety of the machine. Be sure to replace these parts
with the replacement parts specified to maintain the safety and performance of the machine.
This document has been published to be used
SHARP CORPORATION for after sales service only.
The contents are subject to change without notice.
CAUTION
This product is a class 1 laser product that complies with 21CFR 1040 of the CDRH standard and
IEC825. This means that this machine does not produce hazardous laser radiation. The use of controls,
adjustments or performance of procedures other than those specified herein may result in hazardous
radiation exposure.
This laser radiation is not a danger to the skin, but when an exact focusing of the laser beam is achieved
on the eye's retina, there is the danger of spot damage to the retina.
The following cautions must be observed to avoid exposure of the laser beam to your eyes at the time of
servicing.
1) When a problem in the laser optical unit has occurred, the whole optical unit must be exchanged as a
unit, not as individual parts.
2) Do not look into the machine with the main switch turned on after removing the developer unit, toner
cartridge, and drum cartridge.
3) Do not look into the laser beam exposure slit of the laser optical unit with the connector connected
when removing and installing the optical system.
4) The middle frame contains the safety interlock switch.
Do not defeat the safety interlock by inserting wedges or other items into the switch slot.
CAUTION VARO !
INVISIBLE LASER RADIATION, AVATTAESSA JA SUOJALUKITUS
OHITETTAESSA OLET ALTTIINA
WHEN OPEN AND INTERLOCKS DEFEATED.
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