Overview; Printer Mechanism Operating Principles - Epson SEIJ98006 Service Manual

EPSON Stylus Color 900

2.1 Overview

This chapter describes the operating principles of the printer
mechanism and electrical circuits.
Operating Principles

2.2 Printer Mechanism Operating Principles

The EPSON Stylus Color 900 uses a new type of printhead. It has black
and color heads united in one unit which includes a total of 480 nozzles:
192 nozzles for black (96 nozzles x 2) and 96 nozzles for each color.
This printhead enables the printer to print 3 lines by one pass at 10-cpi
printing. Also, new ASF/pump switching mechanism offers higher
throughput with quick feeding motion at continuous printing by
combining the trigger solenoid and independent pump/ASF motor.
Production of PTS signal using the encoder belt also enables the printer
to improve printing accuracy, detect paper jam in the CR operational
range, and print during acceleration/deceleration (on normal paper / 360
x 360 dpi only).
See Figure 2-1 for the printer mechanism block diagram.
Overview
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