Component List & Illustrations, 2VDC

EPSON Stylus Pro 7000

Revision B

2.1 Component List & Illustrations

This section explains the print mechanism and operating principles for the EPSON Stylus Pro 7000.

The printer mechanism of EPSON Stylus Pro 7000 consists of the following mechanism parts.

Part	Drive voltage	Description

	Carriage components

B printhead	+42VDC,	B/C/M printhead,
B printhead	+28VDC,	B/C/M printhead,
C printhead	+28VDC,	LC/LM/Y printhead
C printhead	-2VDC	LC/LM/Y printhead
	-2VDC

Head thermistor	+5VDC	One in each printhead, B and C

CR motor	+42VDC	DC motor

		Photo interrupter
CR_HP sensor	+5VDC	active= CR out of HP
		interrupted = CR in HP

CR encoder sensor	+5VDC	Linear encoder
CR encoder sensor	+5VDC	two channel A phase/B phase
		two channel A phase/B phase

Pump motor	+42VDC,	4 phase 200 cycle HB type stepping
Pump motor	+42VDC,	motor with internal encoder sensor
(PG adjustment)	+5VDC	motor with internal encoder sensor
(PG adjustment)	+5VDC	-also used for cleaning
		-also used for cleaning

		Photo reflector
PG (HD_SLID) sensor	+5VDC	reflected = in PG HP
		unreflected = out of PG HP

		Photo reflector
P_Edge sensor	+5VDC	over threshold = paper exists
		under threshold = no paper

Cutter solenoid	+28VDC	solenoid, cutter drive

Table 2-1. Printer Mechanism Components (continued)

Part	Drive voltage	Description

	Paper feed components

PF motor	+42VDC	DC Servo motor

		Rotary encoder
PF encoder sensor	+5VDC	two channel A phase/B phase
		in PF motor

Paper suction fans	+28VDC	DC motor fan
(x2)	+28VDC	DC motor fan
(x2)

		Photo reflector
P_Front sensor	+5VDC	over threshold = paper exists
		under threshold = no paper

		Photo reflector
P_Rear sensor	+5VDC	over threshold = paper exists
		under threshold = no paper

		Photo interrupter
P_Thick sensor	+5VDC	active= thick paper
		interrupted = normal paper

Paper set lever		Photo interrupter
Paper set lever	+5VDC	active= thick paper
position sensor	+5VDC	active= thick paper
position sensor		interrupted = normal paper
		interrupted = normal paper

	Ink delivery components

Pump motor	+42VDC,	4 phase 200 cycle HB type stepping
Pump motor	+42VDC,	motor with internal encoder sensor
(cleaning)	+5VDC	motor with internal encoder sensor
(cleaning)	+5VDC	also used for PG adjustment
		also used for PG adjustment

I/C sensors		Microswitch 1/ slot
I/C sensors	+5VDC	Open = no I/C
(B/C/M/lc/lm/Y)	+5VDC	Open = no I/C
(B/C/M/lc/lm/Y)		Closed = I/C installed
		Closed = I/C installed

Ink end sensors		Mechanical switch 1/ slot
Ink end sensors	+5VDC	Open = near end
(B/C/M/lc/lm/Y)	+5VDC	Open = near end
(B/C/M/lc/lm/Y)		Closed = ink remains
		Closed = ink remains

Operating Principles

Component List & Illustrations