Sharp DX-B350P / DX-B450P / DX-CSX1 / DX-CSX2 / TEX1 / DX-UX1 / DX-UX2 Service Manual ▷ View online
SERVICE MANUAL
CODE: 00ZDXB450PA4E
LASER PRINTER
DX-B350P / B450P
DX-CSX1/CSX2/TEX1
MODEL
DX-UX1/DX-UX2
Revised Edition
CONTENT
[1] ABOUT THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] PRINCIPLES OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
[3] DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
[4] TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
[5] PLUG/JACK CONNECTOR LOCATIONS. . . . . . . . . . . . . . . . . . . . 5-1
[6] WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
[7] REMOVAL AND REPLACEMENT PROCEDURES. . . . . . . . . . . . . 7-1
[8] PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
[9] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
[10] BASIC INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
Parts marked with “△
! ” are important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
The contents are subject to change without notice.
SHARP CORPORATION
1-1
Chapter 1
About This Manual
This manual is a standard service manual containing information required for maintenance of this
laser printer (standard specifications).
laser printer (standard specifications).
Cautions, Warnings and Notes
Maintenance operations requiring special cautions or additional information for procedures in this
manual are presented as "Warning", "Caution", or "Note", according to their nature.
manual are presented as "Warning", "Caution", or "Note", according to their nature.
If instructions are not observed, death or serious injury may be caused.
If instructions are not observed, personal injury or physical damage to assets
(including this laser printer) may result.
NOTE
Particularly important essentials for procedures, steps, rules, etc.
Reference
Incidental information to descriptions.
Safety
To prevent possible accidents during maintenance activities, you must pay attention to the
"Warning" and "Caution" information in this manual.
"Warning" and "Caution" information in this manual.
Performing any dangerous operations, or procedures not included in this manual, should be
avoided.
avoided.
Occasionally, it may be required to perform some procedures not covered by this manual. These
procedures should be performed carefully, always giving attention to safety.
procedures should be performed carefully, always giving attention to safety.
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Power source
Keep the power supply off during maintenance activities to prevent electric shock, burns and
equipment damage. Keep the power plug disconnected during the maintenance operation.
equipment damage. Keep the power plug disconnected during the maintenance operation.
If it is necessary for the machine power to be switched ON for voltage measurements or other
similar reasons, sufficient care should be given to prevent electric shock, by following the proce-
dures in this manual.
similar reasons, sufficient care should be given to prevent electric shock, by following the proce-
dures in this manual.
While the printer is ON, never touch live components.
Power is supplied to the power unit (LVPS ASSY) even while the printer is off.
Never touch its live components.
Do not touch live components unless otherwise specified.
J20101AA
1-3
Drive units
When servicing gears or other drive units, be sure to turn them OFF and disconnect the power
plug from the receptacle. Whenever possible, drive them manually.
plug from the receptacle. Whenever possible, drive them manually.
Never touch the gears or other moving parts while the printer is running.
High-temperature units
When servicing high-temperature units (removal, replacement, adjustment, etc.), be sure to turn
them OFF to prevent burns, injuries and an electrical hazard. Remove the power plug from the
receptacle and allow the unit to cool down before servicing.
them OFF to prevent burns, injuries and an electrical hazard. Remove the power plug from the
receptacle and allow the unit to cool down before servicing.
Fusing units retain their heat after the power is removed. Wait at least 30 minutes
after removing power before servicing.