TSC CPX4P Series, Service Manual

Page: 50 / 232

46

Main Parts Configuration
This printer can feed 2 kinds of paper: roll paper and fanfold paper. Roll paper is held on Roll Drive Shaft,
and when roll paper is attracted towards Paper Transport on Transport Belt and Pinch Rollers, its
transport force causes Roll Drive Shaft to rotate to feed paper by required length. When starting the
next print job or resuming the paused print job, Roll Drive Shaft is rotated in take-up direction to return
leading edge of paper to Print Start Position. Roll Drive Shaft is driven through rotation of Roll Motor
(M101). Fanfold paper can be fed by removing Roll Holder and placing Printer into fanfold paper mode
from Printer Driver.
Fed paper is transported by Transport Belt and Pinch Rollers as it is sucked by Suction Fan (FM102) in
Transport Unit. Transport Belt is driven through rotation of Transport Motor (M102) in Transport Unit.
Print Start Position is detected by TOF (Top of Form) Sensors (LED2 and Q1/transparent) or by TOF
Sensor (PS2/reflective), and paper transport failures are detected by TOF Sensors (LED2 and
Q1/transparent), TOF Sensor (PS2/reflective), Encoder Sensor (PS1), Transport Sensor 1 (P 109) or
Transport Sensor 2 (P110). Paper Sensor (PS1) detects presence or absence of paper, while Trailing Edge
Sensor (PS1) detects the trailing edge of paper.
[1]
Transport Sensor 2 (P110)
[9]
Roll Drive Shaft
[2]
Transport Sensor 1 (P109)
[10]
Roll Motor (M101)
[3]
Upper TOF Sensor (Q1)
[11]
Encoder
[4]
Pinch Roller
[12]
Lower TOF Sensor (PS2/LED2)
[5] Paper Sensor (PS1) [13] Encoder Sensor (PS1)
[6]
Paper Sensor (PS1)
[14]
Transport Belt
[7]
Paper Holding Wheel
[15]
Transport Motor (M102)
[8]
Roll Holder