Overview; Adjustment Items - Epson Stylus PHOTO 890 Service Manual

EPSON Stylus Photo 890/1280/1290

5.1 Overview

This chapter describes adjustments required if the printer is disassembled and
assembled for repair or service.

5.1.1 Adjustment Items

Table 5-1 lists the required adjustments for this printer. If any of the services listed in
the table below is carried out, all adjustments corresponding to the service items need
to be performed to ensure proper operations for this printer.
Table 5-1. Adjustment Item
No. Item
• When you replace or remove the carriage
1 Parallelism Adjustment
(without the adjustment
• When you replace or remove the parallelism
program)
• When you replace the PF motor.
2 Backlash Adjsutment
• When you remove the Gear 76.
(without the adjustment
program)
3 Ink Charge • When you replace or remove the printhead.
• When you replace the printhead.
4 Head ID Input
• When you replace the main board.
NOTE: New head ID is not written until
• When you replace the printhead.
6 Bi-Directional Adjustment
• When you replace the main board.
• When you replace the CR motor assembly.
• When you remove the carriage unit.
• When you replace the main board.
7 Input USB ID
• When you replace the waste ink pad.
8 Protection Counter Clear
ADJUSTMENT
When to perform
guide shaft.
adjustment bushing.
EEPROM is reset.
The table below lists the type of repair and required adjustments in the order to be
made.
Table 5-2. Type of Repair and Required Adjustment
No. Type of repair
1 Printhead removal
2 Printhead replacement
3 Main board replacement
4 Carriage unit replacement or removal
5 CR Motor replacement
6 Printer mechanism replacement
7 Waste Ink Pad replacement
Replacement or removal of the
following parts.
1) PF motor
8
2) Gear 76
3) PF roller assembly
Overview
Revision C
Required adjustment
1. Head Cleaning
2. Bi-Directional Adjustment
1. Head ID Input
2. Ink Charge
3. Nozzle Check
4. Bi-Directional Adjustment
1. Head ID Input
2. Bi-Directional Adjustment.
3. Input USB ID
4. Protection Counter Clear
1. Parallelism Adjustment
2. Bi-Directional Adjustment
1. Bi-Directional Adjustment
1. Head ID Input
2. Ink Charge
3. Bi-Directional Adjustment
1. Protection Counter Clear
1. Backlash Adjsutment
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