Epson Scan 2500 Required Adjustments, List of Service Procedures That Require Adjustment

EPSON Stylus Scan 2500 Revision A

The scanner mechanism requires no adjustment for any service operation provided you closely follow the specifications in this manual and the instructions in Chapter 4 “Disassembly and Assembly”.

5.1 Required Adjustments

The Stylus Scan printer mechanism requires the adjustments shown in Table 5-1. Perform the necessary adjustment referring to the steps and figures described throughout this chapter. Table 5-2provides a list of necessary adjustments and the conditions when they are required.

Table 5-1. List of Service Procedures That Require Adjustment

No.	Content of Operation		Adjustment Procedure
		1.	Perform Vh voltage writing
		operation.
1	Replacement of the printhead	2.	Perform initial ink charge.
		3.	Perform printhead angle adjustment.
		4.	Perform Bi-d Adjustment.
		5.	Reset ink counter.
		1.	Perform Vh voltage writing
2	Replacement of the main board	operation.
		2.	Perform Bi-d adjustment.
		1.	Perform parallel adjustment.
3	Replacement or Removal of the	2. Perform printhead angle adjustment.
	Carriage Unit	3. Perform Bi-d adjustment.
		4.	Reset ink counter.
4	Replace of the CR Motor	1. Perform Bi-d adjustment.
	Replacement of the Printer	1.	Perform Head Voltage ID Input.
5		2.	Perform initial ink charge.
	Mechanism
		3.	Perform Bi-d adjustment.

Table 5-2. List of Required Adjustments

No.	Adjustment Item	Conditions
		When you replace or remove the carriage or
1	Parallelism Adjustment	carriage guide shaft.
		When you move the parallelism adjustment
		bushing.
2	Initial Ink Charge	When you replace or remove the printhead.
		When you replace the printhead.
3	Head Voltage ID Input	When you replace the main board.
		Note) The values stored in this address are not
		erased by the EEPROM reset operation.
		When you replace or remove the printhead.
	Printhead Angle	When you move the printhead angle-adjust
4		lever.
	Adjustment
		When you replace or remove the carriage or
		carriage guide shaft.
		When you replace or remove the printhead.
		When you replace the main board.
5	Bi-D Adjustment	When you replace the CR Motor.
		When you replace or remove the carriage or
		carriage guide shaft.
		When you replace the printhead.
6	Reset ink counter.	TWhen you replace or remove the carriage or
		carriage guide shaft.

Table below shows the actions taken and required adjustments in the order to be performed.

Adjustment Required Adjustments 113