Epson WF-7620 Series Service Manual

Confidential
Adjustment Details of Adjustments 65
Epson WF-7620 / WF-7610 / WF-7110 Series Revision B
3.2.2.2 Preparation
This section describes how and what to prepare for the preparation before starting the PG adjustment.
 Modification of the thickness gauges

Application procedure of Teflon tape
1. Clean the surfaces of the thickness gauge using alcohol, and make sure no dirt or contamination remains on the
surfaces.
2. Apply Teflon tape on the thickness gauge as shown below.
Figure 3-4. Modification of Thickness Gauge (1)
 The Printhead of this printer has an integral structure of the Printhead Cover and
Printhead nozzle surface. Therefore, if the thickness gauge touches the nozzle surface in
the same way as performed in the traditional procedure, the nozzle surface may be
damaged. When performing the PG Adjustment or checking the platen gap, make sure
to apply Teflon tape (thickness: 0.08 mm) on all the thickness gauges used for the
adjustment or check in advance.
 Use commercially available Teflon tape of 0.08 mm in thickness.
 When applying Teflon tape on the thickness gauges, make sure no bubbles or foreign
material remain under the tape.
[Bubbles]
[Foreign material]
Teflon tape
Thickness gauge

Epson WF-7620 Series Specifications

General

Functions	Print, Copy, Scan, Fax
Max Print Resolution	4800 x 2400 dpi
Automatic Duplex Printing	Yes
Scanner Type	Flatbed, ADF
Max Scan Resolution	1200 x 2400 dpi
ADF Capacity	35 sheets
Wireless Printing	Yes
Display	4.3" Color Touchscreen
Number of Paper Trays	2
Ink Type	DURABrite Ultra pigment ink
Fax Memory	Up to 180 pages
Fax Transmission Speed	33.6 Kbps
Print Technology	PrecisionCore Inkjet
Max Paper Size	13 x 19 inch (A3+)
Connectivity	USB, Ethernet, Wi-Fi, Wi-Fi Direct
Input Paper Capacity	250 sheets
Mobile Printing	Epson Connect, Apple AirPrint, Google Cloud Print
Maximum Scan Area	11.7 x 17 inches
Ink Cartridge Configuration	4 individual ink cartridges (Black, Cyan, Magenta, Yellow)
Print Speed (ISO)	Black: 18 ppm, Color: 10 ppm
Dimensions	22.3 x 19.1 x 13.4 inches