Feature - Epson Stylus Pro 5000 Service Manual

Stylus Pro5000

2.1 FEATURE

This section explains mechanical and electrical operating principles for
Stylus Pro5000.
2.1.1 Operating Principles of Printer Mechanism
The printer mechanism of Stylus Pro5000 consists of the following
mechanism parts.
Table 2-1 . Mechanism Components
No. Mechanism
1 Printing Mechanism
2 Carriage Mechanism
3 Paper Load/Paper Feed
Mechanism
4 Upper Surface Sensor
Mechanism
5 Paper Return Mechanism
6 Lifter Gear Train
Mechanism
7 Hopper 5mm Down
Mechanism
8 Sub Roller Gear Train
Mechanism
Rev. A
Motor Function(Purpose)
•Ink Discharge
-----
•Driving Carriage
CR
•Input or Output trigger
to ink mechanism
•Paper transport.
PF+ASF
•Open or close the ink
valve.
•Load adjustment of
-----
the Paper Load Roller,
according to the paper
volume.
•Prevention of multi-
feeding.
•Lifter Up/Down.
Pump,
ASF
•Prevention of folding
paper on the paper
skew.
•Improvement of
credibility of paper
loading.
•Big roller for paper
transport.
Table 2-2. Mechanism Components(Con.)
No. Mechanism
9 Gear Train Changes with
Hopper installed
10 Ink Engage/Disengage
Mechanism
11 PG Engage/Disengage
Mechanism
12 Ink Valve Mechanism
13 Friction Release
Mechanism
Chapter2 Operating Principles
Motor Function(Purpose)
•Engaging to the Lifter
-----
Gear Train.
•Changes over Paper
PF
Load line/ Pump line
•Changes PG
CR+PF
according to the paper
type.
•Prevention of ink
PF
leaking during the re-
transportation.
•Friction Release
Pump,
ASF
Mechanism in the
range 10cm of the
paper end edge.
2-1