AR-M256 (serv.man85). Increase of margin for H4 trouble. - Sharp Copying Equipment Technical Bulletin (repair manual)

ar-m256 (serv.man85) technical bulletin
Model
AR-M256 (serv.man85)
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
62.55 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
Copying Equipment / Increase of margin for H4 trouble.
File
ar-m256-sm85.pdf
Date

Read Sharp AR-M256 (serv.man85) Technical Bulletin online

 
 
 
Sharp Electronics (UK) Ltd., Document Systems Support
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1. Model Name AR-M256/M316 
2. Symptom 
Since the rate of thermal expansion of the fusing unit varies depending on the material, 
looseness is given to the lamp fixing plate mounting the fusing upper frame (resin) and 
heater lamp (glass). However, if the looseness of the lamp fixing plate is small, the 
expansion difference between fusing upper frame and heater lamp cannot be 
absorbed, and disconnection may occur at the connection section of the heater lamp 
sealing section. It causes H4 trouble. 
3. Description 
The size of the lamp fixing plate has been changed from 24.00 mm to 23.7 mm to 
increase the margin for H4 trouble by increasing the looseness of the fusing upper 
frame and lamp fixing plate. 
4. Action 
Executed from the production in August, 2007 
Increase of margin for "H4 trouble 
TECHNICAL BULLETIN 
Date:  
22 November 2007 
Model:  
AR-M256/316 
Ref.:  
008 
Colour:  
White 
Page:  
1 of 2 
 
 
 
Sharp Electronics (UK) Ltd., Document Systems Support
 
 
 
No 
Model
name 
Version 
P/G 
No. 
Current parts 
New parts 
Q'ty 
Parts 
name 
Effec- 
tive 
time 
Inter-
change
ability
Note 
Parts code 
Parts code 
Price
rank 
AR-M256 
AR-M257 
AR-M258 
AR-M316 
AR-M317 
AR-M318 
AR-5625
AR-5631
ALL 
24 -22 
LPLTM0335QSZZ LPLTM0335QSZ1  AF  1 
Lamp 
fixing 
plate 
'07/8 3 
 
AR-M236 
AR-M237 
AR-M276 
AR-M277 
23 -22 
<Interchange> 
1. Interchangeable. 
4. Not Interchangeable. 
2. Current type can be used in place of new type. 
New type cannot be used in place of current type. 
5. Interchangeable if replaced with same types of related
parts in use. 
3. Current type cannot be used in place of new type. 
New type can be used in place of current type. 
6. Others. 
Parts marked with "
" is 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. 
 
 
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Here you can read online and download Sharp AR-M256 (serv.man85) Technical Bulletin in PDF. AR-M256 (serv.man85) technical bulletin will guide through the process and help you recover, restore, fix, disassemble and repair Sharp AR-M256 (serv.man85) Copying Equipment. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.