: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 40
B. Maintenance and parts replacement
(1) Maintenance list
✕: Check (Clean, replace, or adjust as necessary.) ❍:Clean ▲: Replace ∆: Adjust ✩: Lubricate ❏: Shift position
(2) Maintenance and parts replacement
(List of Replacement Parts)
MPFD2 MPFD2 Manual feed paper pass detector 2
Manual tray and LCC unit paper pass
detection
Transmission
type
Paper transport system
sensor
MM MM Main motor Drives the paper feed trays 1, 2, 3, and 4,
and the manual paper feed section.
DC brushless
motor
Paper pass
HPFC HPFC Horizontal paper transport clutch
Manual paper feed, paper feed tray 2 section,
LCC paper transport roller ON/OFF control
Electromagnetic
clutch
MPRD1 MPRD1 Paper feed tray 2 paper pass
detector 1
Manual feed/paper feed tray 2, LCC paper
pass detection
Transmission
type
Paper transport system
sensor
MPRD2 MPRD2 Paper feed tray 2 paper pass
detector 2
Manual feed/paper feed tray 2, LCC paper
pass detection
Transmission
type
Paper transport system
sensor
T1PPD T1PPD Manual feed paper pass detector
(Paper feed tray 1)
Paper feed tray 1 paper pass detection Transmission
type
Paper transport system
sensor
No. Name Function
1 Transport roller 15 Transports paper to the transport resist roller.
2 Transport roller 4 Transports paper from the transport roller 3 to the transport roller 15.
3 Transport roller 3 Transports paper from the paper feed tray 2 and the transport roller 2 to the transport roller 3.
4 Transport roller 2 Transports paper from the manual paper feed and transport roller 2 to the transport roller 3.
5 Transport roller 13 Transports to the transport roller 15.
6 Paper guide lock solenoid Lock the horizontal transport paper guide.
AR-M550U/N (PM: 250K)
When
calling
250K 500K 750K 1000K 1250K 1500K 1750K 2000K
Remark
AR-M620U/N, AR-M700U/N (PM: 300k) 300K 600K 900K 1200K 1500K 1800K 2100K 2400K
Unit name No. Part name
Vertical paper
transport
1 Transport rollers ✕❍❍❍❍❍❍❍❍
2 Transport paper guides ❍❍❍❍❍❍❍❍❍
Code
Signal
name
Name Function/Operation Type Note
1
1
1
1
1
1
1
1
2
2
No. Unit Parts
a Relay pass unit 1 Paper guide lock solenoid
2 Lower paper guide unit ❍
3 Paper guides ❍
4 Transport roller 3 (Drive) ✕❍
5 Transport roller 4 (Drive) ✕❍
6 Transport roller 2 (Drive) ✕❍
7 Paper feed tray 2 paper
pass detector 1
8 Paper feed tray 2 paper
pass detector 2
b No. 5 paper feed
relay unit
1 Manual paper pass
detector 2
2 No. 5 paper feed paper
pass detector
a
b-2b-1
a-1
a-2
a-3
a-3
a-4
a-5
a-6
a-7
a-8
b
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