Read Sharp MX-6500N / MX-7500N (serv.man27) Service Manual online
MX-7500N OPERATIONAL DESCRIPTIONS 13 – 22
(5)
PS unit
Signal name
Name
Function/Operation
PFM
Transport motor
Drives the registration roller.
PPD1
Registration pre-pre-detection
Detects the paper in front of transport roller 17.
PPD2
Registration pre-detection
Detects the paper in front of registration roller.
RRM
Registration motor
Drives the registration roller and controls ON/OFF timing.
No.
Name
Function/Operation
1
Transport roller 17 (Drive)
Transports paper from transport roller 13 to registration roller.
2
Registration roller (Drive)
Transports paper to the transfer section. Controls the tr0ansport timing of paper, and adjusts the relative
relations between images and paper.
relations between images and paper.
3
Registration roller (Idle)
Apply a pressure to paper and the registration roller to provide the transport power of the transport roller to
paper.
paper.
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