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EPSON Stylus Scan 2500 Revision A
Adjustment Required Adjustments 113
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 5-2 provides a list of necessary
adjustments and the conditions when they are required.
Table below shows the actions taken and required adjustments in the order to
be performed.
Table 5-1. List of Service Procedures That Require Adjustment
No. Content of Operation Adjustment Procedure
1 Replacement of the printhead
1. Perform Vh voltage writing
operation.
2. Perform initial ink charge.
3. Perform printhead angle adjustment.
4. Perform Bi-d Adjustment.
5. Reset ink counter.
2 Replacement of the main board
1. Perform Vh voltage writing
operation.
2. Perform Bi-d adjustment.
3
Replacement or Removal of the
Carriage Unit
1. Perform parallel adjustment.
2. Perform printhead angle adjustment.
3. Perform Bi-d adjustment.
4. Reset ink counter.
4 Replace of the CR Motor
1. Perform Bi-d adjustment.
5
Replacement of the Printer
Mechanism
1. Perform Head Voltage ID Input.
2. Perform initial ink charge.
3. Perform Bi-d adjustment.
Table 5-2. List of Required Adjustments
No. Adjustment Item Conditions
1 Parallelism Adjustment
When you replace or remove the carriage or
carriage guide shaft.
When you move the parallelism adjustment
bushing.
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
erased by the EEPROM reset operation.
4
Printhead Angle
Adjustment
When you replace or remove the printhead.
When you move the printhead angle-adjust
lever.
When you replace or remove the carriage or
carriage guide shaft.
5 Bi-D Adjustment
When you replace or remove the printhead.
When you replace the main board.
When you replace the CR Motor.
When you replace or remove the carriage or
carriage guide shaft.
6 Reset ink counter.
When you replace the printhead.
When you replace or remove the carriage or
carriage guide shaft.