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: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 35
B. Maintenance and parts replacement
(1) Maintenance list
✕
: Check (Clean, replace, or adjust as necessary.)
❍
: Clean
▲
: Replace
∆
: Adjust
✩
: Lubricate
❏
: Shift position
✕
: Check (Clean, replace, or adjust as necessary.)
❍
: Clean
▲
: Replace
∆
: Adjust
✩
: Lubricate
❏
: Shift position
Code
Signal
name
Name
Function/Operation
Type
Note
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
PPD
PPD
Resist roller front paper pass
detector
Paper pass detection in front of resist roller Reflection type
Paper transport system sensor
RRC
RRC
Resist roller clutch
Resist roller ON/OFF control
Electromagnetic
clutch
PSBC
PSBC
Resist roller brake clutch
Resist roller braking
Electromagnetic
clutch
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
TRM
TRM
Resist roller front drive motor
Drives the paper transport roller 15.
Stepping motor
Normal speed mode/ Resist roller
front paper transport timing
control (Warp amount control)
VPM
VPM
Vertical paper transport motor Drives the paper transport rollers 4 and 13. Stepping motor
Normal speed mode
1
1
1
No.
Name
Function
1
Resist roller (Drive)
Transports paper to the transfer section. / Controls the transport timing of paper to adjust the relationship
between images and paper.
2
Resist roller (Idle)
Applies a pressure to paper and the resist roller to provide transport power of the transport roller to paper.
3
Transport roller 15
Transports paper to the transport resist roller.
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
section 2
1
Resist roller (Idle)
✕
❍
❍
❍
❍
❍
❍
❍
❍
2
Transport rollers
✕
❍
❍
❍
❍
❍
❍
❍
❍
3
Transport paper guides
❍
❍
❍
❍
❍
❍
❍
❍
❍
4
Sensors
❍
❍
❍
❍
❍
❍
❍
❍
❍
Optical
reflection
sensor
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
1
Paper dust cleaner
✕
▲
▲
▲
▲
▲
▲
▲
▲
1
1
1
2
4
3
1
1
Summary of Contents for AR-M550N
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