UX-P410TH/FO-P610TH/NX-P160TH
Back of2) Structure of recording mechanism
document
Last page ofRecording is achieved by applying a suitable pressure to the thermal
documenthead through the imaging film of the recording paper feed roller and the
recording paper.
The main scanning is electronically performed, and the sub-scanning is
Paper feed plateFirst page of
mechanically performed (by sending the recording paper with the re-
document
cording paper feed roller).
Separate3) Recording paper transfer sequence
rubber
a) The recording paper stored in the paper tray assOy is fed with the PU
Separateroller, and is stopped when the P-IN sensor is turned on by sensing
plateits lead edge.
b) Hereafter, the imaging film and recording paper are transferred with
the recording paper feed roller, and thermal transcription is performed
Paper feed rolleron the recording paper.
c) After thermal transcription, the imaging film is taken up by the roller
on the take-up side, and the recording paper is discharged by the
back roller.
Fig. 4
Troubleshooting the density unevenness mainly results from the
longitu-dinal misalignment of the thermal head to the heater line. Oth-
3-5. Documents requiring use of the copyerwise, the head is in uneven contact with the recording paper feed
roller, or the imaging film is wrinkled.
1) Documents smaller than 148mm (W) x 140mm (L).
The following items are described as the simplified checking method.
2) Documents thinner than the thickness of 0.06mm.1 Are the power and signal cables of the thermal head suitably treated?
3) Documents containing creases, folds, or curls, especially those 2 Does the same symptom appear even if the thermal head pressurewhose
surface is curled (maximum allowable curl is 5mm).spring is replaced?
4) Documents containing tears.3 Is the feed roller of the recording paper concentric? (Density is un-
even at intervals.)
5) Carbon-backed documents. (Insert a white sheet of paper between
the carbon back and the document carrier to avoid transfer 4 Does the same symptom appear even if the thermal head is replaced?of carbon
to the carrier.)
5 Is the imaging film stained or wrinkled?
6) Documents containing an easily separable writing material (e.g., those
written with a lead pencil).
7) Transparent documents.5-3. General view
8) Folded or glued documents.
Paper
tray
4. Document releaseextension
(Accessory)
4-1. General
To correct a jammed document or to clean the document running sur-
face, pull the insertion side of document center of the operation panel.
To open the upper document guide, the operation panel must be opened
Paper
first.tray ass'yFeed plate
(Accessory)
Separate rubber
5. Recording blockP-IN sensor leverPU roller
(Upper)
5-1. Driving
Platen roller
In the drive mechanism, the rotating force of the pulse motor for both
transmission and reception is transmitted to the paper supply roller, the
recording paper feed roller and imaging film drive gear through the pulse
motor axle gear, reduction gear and planetary gear.Release lever
5-2. Recording
This equipment employs the thermal transcription system which usesImaging film
(Supply side)
the thermal head imaging film.Thermal head
Film sensor lever
1) Thermal head
Imaging film
The thermal head is composed of 2,016 heating elements in traverse(Take-up side)
line, and the resolution power is 8 dots/mm. The maximum speed is 10Fig. 5
ms/line.
3 � 2 |
ACEC
SHARP
