AR-M620 (serv.man191). ROM upgrade .. (4), (5) - Sharp Copying Equipment Technical Bulletin (repair manual)

ar-m620 (serv.man191) technical bulletin
Model
AR-M620 (serv.man191)
Pages
3 Few pages! See other manuals at the bottom of the first or last page.
Size
39.58 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
Copying Equipment / ROM upgrade .. (4), (5)
File
ar-m620-sm191.pdf
Date

Read Sharp AR-M620 (serv.man191) Technical Bulletin online

ARE610
Sharp Electronics (UK) Ltd., Technical Services Group
1.Model Name:
AR-M550U/M620U/M550N/M620N, AR-P19
2.Description:
ROM UPGRADE (5)
Upgraded from the mid of March 2004 production
Corrected Problems
1. Corrected H4-02 trouble. (Changed the temperature control setting of HL3 to 180 .)
Previously when a cassette or bypass tray was set to Heavy Paper mode (regardless
of the thickness of a paper), the temperature of HL3 was controlled at 220 degrees C.
If multiple copying was performed in this condition, the ambient temperature of the
thermostat would rise to 150 degrees C, causing a break in the thermostat cable and
H4-02. This is because the HL3 thermostat is turned off at 150 plus or minus 5 degrees C
by its specifications.To correct this problem, the HL3 temperature in Heavy Paper
mode has been changed to 180 degrees C. This also changed the ambient
temperature of the HL3 thermostat to around 125 degrees C.
2. Corrected F2-48 trouble occurred in a low humidity environment. (Changed the humidity
correction table.)
Previously, the threshold value that judges OK/NG for signals output from the
temperature-humidity sensor was set incorrectly. If the temperature-humidity sensor
output OK-level signals, they were judged as NG and F2-48 was recorded in the error
history.To correct this problem, such threshold value has been changed to the correct
value.
Changed Specifications
1. Changed the default value of the amount of Sim.51-2 resist.
T1 : 50 
 46, T3/4 : 50 
 46, T2/BPT/LCC : 50 
 45, ADU : 50 
 43
New ROM versions
Models
AR-M550U/AR-M620U
Main
Boot
PCU
Scanner
ROM Control
No.A04
Vu1.10
VM5.26B
V01.09
V01.01
Models
AR-M550N/AR-M620N
Main
Boot
PCU
Scanner
ROM Control
No.A04
Vn1.10
VM5.26B
V01.09
V01.01
Models
AR-P19
Main
Boot
ROM Control
No.A04
Vp1.10
VM5.26B
ROM UPGRADE ....... (4), (5)
TECHNICAL BULLETIN
Date:
14 May 2004
Model: 
ARM550 / ARM620 / ARP19
Ref.:
001
Colour: 
White
Page:
1 of 3
ARE610
Sharp Electronics (UK) Ltd., Technical Services Group
ROM UPGRADE (4)
Upgraded from the mid of February 2004 production
Corrected Problems
1. Corrected: The Ready indicator of a printer would light up. (AR-M550U/M620U)
2. Corrected: During warming up (after opening/closing the front cabinet for jam clearing,
etc.), the counter at the time when the latest power-on would appear, differing from
the latest counter display.
Changed Specifications
1. Changed: When the inter-paper timer of the bypass tray is activated, if HPFC is
turned OFF/ON, the interval between papers will be 30 ms [clutch-coupling time].
New ROM versions
Models
AR-M550U/AR-M620U
Main
Boot
PCU
Scanner
ROM Control
No.A03
Vu1.10
VM5.26B
V01.08
V01.01
Models
AR-M550N/AR-M620N
Main
Boot
PCU
Scanner
ROM Control
No.A03
Vn1.10
VM5.26B
V01.08
V01.01
Models
AR-P19
Main
Boot
ROM Control
No.A03
Vp1.10
VM5.26B
ROM UPGRADE (3)
Upgraded from the mid of January 2004 production
Corrected Problems
Corrected: With a machine for SEF, when the document filing function is moved or the
job detail screen is displayed, the machine would reboot.
Models
AR-M550U/M620U
Main
Boot
PCU
Scanner
ROM Control
No.A02
Vu1.09
VM5.26B
V01.08
V01.01
Models
AR-M550N/M620N
Main
Boot
PCU
Scanner
ROM Control
No.A02
Vn1.09
VM5.26B
V01.08
V01.01
Models
AR-P19
Main
Boot
ROM Control
No.A02
Vn1.09
VM5.26B
ARE610
Sharp Electronics (UK) Ltd., Technical Services Group
ROM UPGRADE (2)
Upgraded from January 2004 production
Corrected Problems
1. Corrected: During FTP pull printing, CE-00 trouble would occur.
2. Corrected: During sensor checking (Sim.30-1, etc.), if a print job is sent, a machine
would lock up.
Models
AR-M550U/M620U
Main
Boot
PCU
Scanner
ROM Control
No.A01
Vu1.08
VM5.26B
V01.08
V01.01
Models
AR-M550N/M620N
Main
Boot
PCU
Scanner
ROM Control
No.A01
Vn1.08
VM5.26B
V01.08
V01.01
Models
AR-P19
Main
Boot
ROM Control
No.A01
Vp1.08
VM5.26B
ROM UPGRADE (1)
Upgraded from the mid of December 2003 production
Corrected Problems
To avoid smudges on copies, toner density correction has been disabled when the
internal humidity of a machine is 60% or lower.
Models
AR-M550U/M620U
Main
Boot
PCU
Scanner
ROM Control
No.A00
Vu1.04
VM5.26A
V01.08
V01.01
Models
AR-M550N/M620N
Main
Boot
PCU
Scanner
ROM Control
No.A00
Vn1.04
VM5.26A
V01.08
V01.01
Models
AR-P19
Main
Boot
ROM Control
No.A00
Vp1.04
VM5.26A
Page of 3
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Download Sharp AR-M620 (serv.man191) Technical Bulletin

Here you can read online and download Sharp AR-M620 (serv.man191) Technical Bulletin in PDF. AR-M620 (serv.man191) technical bulletin will guide through the process and help you recover, restore, fix, disassemble and repair Sharp AR-M620 (serv.man191) 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.