AR-M550 (serv.man146). ROM upgrade .. (4), (5) - Sharp Copying Equipment Technical Bulletin (repair manual). Page 3

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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
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