Required Adjustments - Epson Stylus COLOR 660 Service Manual

EPSON Stylus Color 660
5.1 Overview
This chapter describes adjustments required for Stylus Color 640/660
when the printer is disassembled and assembled after repair. Refer to
Stylus Color 740/640/440 Service Manual for things that are not
described here.

5.1.1 Required Adjustments

Stylus Color 640/660 requires the following adjustments. (Refer to
Table 5-1) Perform any necessary adjustment referring to the figures
and procedures described throughout this chapter.
Table 5-1 Adjustment Required
No. Adjustment Item
1 Parallelism Adjustment • When you replace or remove the Carriage
• When you move the parallelism adjustment
2 Initial Ink Charge • When you replace or remove the printhead.
3 Head Voltage ID Input • When you replace the printhead.
• When you replace the main board.
Note) The values stored in this address are not
4 Printing Head Angle • When you replace or remove the printhead.
Adjustment
• When you move the printhead angle adjusting
5 Bi-D Adjustment • When you replace or remove the printhead.
• When you replace the main board.
• When you replace the CR Motor.
Chapter 5 Adjustment
Conditions
guide shaft.
bushing.
erased by EEPROM reset operation.
lever.
Table below shows the actions taken and required adjustments in the
order to be performed.
Table 5-2 Actions Taken and Adjustment Required
No. Content of Operation
1 Removal of the printhead
2 Replacement of the printhead
3 Replacement of the main board
4 Replacement or Removal of the
Carriage Unit
5 Replace of the CR Motor
6 Replacement of the Printer
Mechanism
Revision A
Adjustment Procedure
1. Perform initial ink charge.
2. Perform printhead angle adjustment.
3. Perform Bi-d Adjustment.
1. Perform Vh voltage writing operation.
2. Perform initial ink charge.
3. Perform printhead angle adjustment.
4. Perform Bi-d Adjustment.
1. Perform Vh voltage writing operation.
2. Perform Bi-d adjustment.
Note) After performing the above
adjustment, replace the following parts.
• Ink cartridge
• Waste Ink Pad
The above two kinds of software counter
are erased by replacing the Main board.
1. Perform parallel adjustment.
2. Perform printhead angle adjustment.
3. Perform Bi-d adjustment.
1. Perform Bi-d adjustment.
1. Perform Head Voltage ID Input.
2. Perform initial ink charge.
3. Perform Bi-d adjustment.
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