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Confidential
The outer circumference of the PF roller gear L functions as a 300 dpi (0.084 mm pitch) encoder
disk which the PF encoder sensor uses to generate a signal indicating the gear rotation speed--in
other words, the paper feed roller speed--to the controller for use in controlling paper feed position
and speed. This signal from the PF encoder is a 2-phase one, for a maximum position detection
resolution 300 dpi four times or 1200 dpi.
Paper stop position control
The controller uses the PF encoder signal for proportional, integration, differential (PID) control of
the paper feed motor to produce high-resolution precision paper positioning during printing. This
signal also determines the motor parameters for rapidly and precisely positioning the paper past a
gap.
Fixed-speed paper feed
This operation rotates the paper feed roller to feed the paper at a constant speed regardless of load
fluctuations. The primary application is ejecting paper when printing is complete--in other words,
in situations where precision stop position control is not needed.
Paper feeding amount control
There is variation in the head nozzle pitch of individual head/carriage units, as well as in the shape
of the paper feed and ejection rollers. To make those parts match each other, therefore, updating the
paper feeding correction value and correcting the positioning error of the head/carriage unit are
necessary (see
Содержание DCP-110C
Страница 10: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Страница 14: ...1 3 Confidential 1 2 CONTROL PANEL MFC620CN FAX2440C ...
Страница 17: ...1 6 Confidential MFC210C ...
Страница 21: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Страница 87: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Страница 103: ...3 15 Confidential Front end ASSY Piezoelectric plate Laminated electrode Manifold Damper Nozzle plate A A A A Channel ...
Страница 131: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Страница 136: ...Confidential CHAPTER 55 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Страница 168: ...5 30 Confidential Removing the head cover 2 Unlatch the head cover from the head carriage unit and pull it up ...
Страница 212: ...5 74 Confidential Routing C Backup battery harness and ink supply tubes MFC620CN and FAX2440C ...
Страница 214: ...5 76 Confidential Viewed from the left ...
Страница 220: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 238: ...6 16 Confidential Paper Feeding Check Patterns for the Paper Feed Roller and Paper Ejection Roller A B ...
Страница 240: ...6 18 Confidential Vertical Alignment Check Patterns ...
Страница 243: ...6 21 Confidential Margin Check Pattern ...
Страница 253: ...Confidential CHAPTER 7 CLEANING ...
Страница 256: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Страница 267: ...8 9 Confidential Scanning Compensation Data List a b c d e f i ...
Страница 274: ...8 16 Confidential Configuration List ...
Страница 288: ...8 30 Confidential Paper Feeding Check Pattern for the Paper Feed Roller and Paper Ejection Roller A B ...
Страница 294: ...8 36 Confidential 1st sheet 2nd sheet Vertical Alignment Check Patterns ...
Страница 297: ...8 39 Confidential Margin Check Pattern ...
Страница 311: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 362: ...App 1 2 Confidential 2 Head property label Property label for the head carriage unit Location ...
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Страница 466: ...Confidential February 05 SM FAX028 8CA811 8 Printed in Japan ...