FujiFilm Frontier-S DX100, Service Manual

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2.1 Printer Mechanism
DX100 Service Manual
2.1 Printer Mechanism
2.1.1 Carriage Mechanism
The carriage mechanism operates the CR Unit including the Print Head properly.
The mechanism components include the Print Head, CR Motor, CR Timing Belt, CR
encoder sensor, CR Scale, etc.
The CR Unit is driven by the CR Motor and moves along the carriage main shaft and
carriage sub shaft. Then, it stops at the print start position detected by the PW sensor. CR
Encoder Sensor, which is included in the unit, detects the position of the CR Unit by reading
the pattern of the CR Scale.
Figure 2-1. Configuration of Carriage Mechanism
2.1.2 APG Mechanism
The APG mechanism is driven by the APG motor to change the platen gap (PG)
automatically within the five presettings.
The APG motor and APG position sensor drive the PG cam to automatically adjust the PG
amount according to the use. The drive force of the APG motor is transmitted to the four PG
cams of the carriage main shaft and carriage sub shaft through the gears of the APG Unit.
This sequence of actions adjusts the distance between the Print Head and the platen.
Figure 2-2. APG mechanism (1)
CR encoder sensor
CR Motor
CR Scale
CR Timing Belt
Paper Feed
Carriage sub shaft
Print Head
PW sensor
CR Unit
Carriage main
shaft
APG motor
APG position sensor
APG Unit
CR Unit
Release flag
Driven Release Holder
Upper Paper
Guide Unit
PG cam
PG cam
PG cams
Carriage sub shaft
Carriage main shaft