Epson 900N, Service Manual

Page: 124 / 201

EPSON Stylus COLOR 900/900N Chapter 5 Adjustments
121
5.1.1 Special Adjustment Tools
The table below shows the adjustment tools you need for servicing the
EPSON Stylus COLOR 900/900N.
5.2 Using the Adjustment Program
The adjustment program lets you perform the following adjustments and
service-related functions:
„
To input the printhead ID, see page 127 .
„
To make the printhead angle adjustment, see page 130 .
„
To make the bi-directional adjustment, see page 138 .
„
To clean the printhead, see page 143 .
„
To reset the Initial Ink Charge Flag, see page 145 .
„
To check or clear the waste ink counter, see page 146 or page
148
.
„
To perform a fan check, see page 149 .
Before running the adjustment program, make sure the computer you’re
using is set up properly. See
“Setting Up Your Computer” below.
Then start the program as described in “Starting the Adjustment
Program” on page 122.
5.2.1 Setting Up Your Computer
For the adjustment program to work properly, you have to set up your
computer as described below. Reboot the PC after making any changes
to enable the new settings.
‰
Use MS-DOS version 6.2 or higher.
‰
Use only LPT1 as the printer port.
Waste Ink Pad
replacement 1 After replacing the waste ink pads, clear the waste ink
counter as explained in
“Clearing the Waste Ink
Counter” on page 148.
CR motor
replacement 1 Perform the Bi-Directional Adjustment. See “Bi-
Directional Adjustment” on page 138.
Program ROM
replacement
*1
1 Input a 22-digit printhead ID. See “Printhead ID Input”
on page 127.
2 Perform the Bi-Directional Adjustment. See “Bi-
Directional Adjustment” on page 138.
*1: You have to perform these adjustments only when you replace an older
PROM (version TEE01A, 01B, or 01C) with a new one (TEE01D or
later).
Tool Type of Adjustment Specifications
Thickness gauge Platen Gap (Parallelism)
Adjustment 1.14 mm thick, 5 cm long;
EPSON-available only
Adjustment Program
• Initial Ink Charge
• Printhead ID
• Printhead Angle
Adjustment
• Bi-d Adjustment
• Clearing Waste Ink
Counter Value
SC900.EXE;
EPSON-available only
Table 5-1. Required Adjustments (continued)
Type of repair Step Required adjustments