Required Adjustments - Epson Stylus SCAN 2000 Service Manual

EPSON Stylus Scan 2500
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 5-1. List of Service Procedures That Require Adjustment
No. Content of Operation
1 Replacement of the printhead
2 Replacement of the main board
Replacement or Removal of the
3
Carriage Unit
4 Replace of the CR Motor
Replacement of the Printer
5
Mechanism
Adjustment
Adjustment Procedure
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.
1. Perform Vh voltage writing operation.
2. Perform Bi-d adjustment.
1. Perform parallel adjustment.
2. Perform printhead angle adjustment.
3. Perform Bi-d adjustment.
4. Reset ink counter.
1. Perform Bi-d adjustment.
1. Perform Head Voltage ID Input.
2. Perform initial ink charge.
3. Perform Bi-d adjustment.
Required Adjustments
Table 5-2. List of Required Adjustments
No. Adjustment Item
n When you replace or remove the carriage or carriage
guide shaft.
1 Parallelism Adjustment
n When you move the parallelism adjustment bushing.
n When you replace or remove the printhead.
2 Initial Ink Charge
n When you replace the printhead.
n When you replace the main board.
3 Head Voltage ID Input
Note) The values stored in this address are not
n When you replace or remove the printhead.
Printhead Angle n When you move the printhead angle-adjust lever.
4
Adjustment
n When you replace or remove the carriage or carriage
guide shaft.
n When you replace or remove the printhead.
n When you replace the main board.
5 Bi-D Adjustment
n When you replace the CR Motor.
n When you replace or remove the carriage or carriage
guide shaft.
n When you replace the printhead.
6 Reset ink counter.
n When 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.
Revision A
Conditions
erased by the EEPROM reset operation.
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