Sharp UX-B800A, Service Manual, Page: 1 / 140

SERVICE MANUAL
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.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
CHAPTER 1. GENERAL DESCRIPTION
[1] Caution........................................................... 1-1
[2] Specifications ................................................. 1-2
[3] Operation
panel.............................................. 1-3
[4] Transmittable documents ............................... 1-5
[5] Installation ...................................................... 1-6
[6] Scan
to E-mail.............................................. 1-10
[7] Clearing paper jams ..................................... 1-12
[8] Quick reference guide .................................. 1-13
CHAPTER 2. ADJUSTMENTS
[1] Adjustments ................................................... 2-1
[2] Diagnostics and service soft switch ............... 2-2
[3] Troubleshooting ........................................... 2-40
[4] Error code table............................................ 2-41
CHAPTER 3. MECHANISM BLOCKS
[1] General description ........................................ 3-1
[2] Ink jet printer .................................................. 3-3
[3] Disassembly and assembly procedures......... 3-5
CHAPTER 4. DIAGRAMS
[1] Block diagram ................................................ 4-1
[2] Wiring diagram ............................................... 4-2
[3] Point-to-point diagram.................................... 4-3
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Circuit description ..........................................5-1
[2] Circuit description of control PWB ................5-2
[3] Circuit description of LIU PWB ....................5-13
[4] Circuit description of power supply PWB......5-15
[5] Circuit description of CIS unit ......................5-15
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] Control PWB circuit .......................................6-1
[2] LIU PWB circuit ...........................................6-14
[3] Power Supply PWB circuit...........................6-19
[4] Operation Panel PWB circuit .......................6-21
CHAPTER 7. OTHER
[1] Protocol .........................................................7-1
[2] Power
on sequence.......................................7-2
[3] Service tools ..................................................7-3
[4] Rewriting version up the FLASH ROM ..........7-6
Parts Guide
TopPage
CONTENTS
UX-B800A
No. 00ZUXB800ASME
FACSIMILE
UX-B800A
MODEL
MODEL SELECTION CODE DESTINATION
UX-B800
A
Australia