Epson 2200 Service Manual - Page 188

EPSON Stylus PHOTO 2100/2200 Revision B 5.1 Adjustment Items and Overview This chapter describes adjustments to be made after the disassembly/reassembly of this product. 5.1.1 Servicing Adjustment Item List The adjustment items of this product are as follows. For details of the adjustment items, refer to the detailed procedures and sketches of the adjustment items. Table 5-1. Servicing Adjustment Items Function Item Purpose Method Outline Tool Main adjustment items Destination data input Head ID input CR variation correction PG adjustment At the time of Main board replacement, this adjustment is made to write the board common information on a destination basis. Select and execute this function in the exclusive servicing program to save the following data into the EEPROM. Market ID, CSIC printer ID, D4 setting (USB, parallel), CSIC ink name, printout position adjustment fixed value Supplement: Write of Ink Flags 1, 2 is not planned. (Since the initial filling flags are not set in general repair.) At the time of head replacement, this adjustment is made to correct head manufacturing variations and eliminate the individual differences of print quality. Enter the ID of the head QR code label applied to the Printhead into the exclusive servicing program to save it to the EEPROM on the Main board. (Supplement: Read the QR code label from left to right on the top row and from top to bottom in due order.) When the Main board, CR motor or PSB/PSE board is changed individually, this adjustment is made to write the maximum correction value to prevent the occurrence of damage to the motor at the time of CR motor heat generation. However, when the CR shaft is changed together with the above part, this adjustment is made to measure the manufacturing variations of the CR motor and PSB/PSE board, utilize the motor capability to the maximum for motor heat generation control, and prevent the motor from being damaged by CR motor heat generation. Select/execute this function in the exclusive servicing program. When you turn on the check boxes of the corresponding parts changed during repair, the program automatically determines whether to enter the maximum value of CR variation correction or to measure CR variations, and performs either operation. The correction value is saved to the specific EEPROM address on the Main board. This adjustment is made to install the Front and Rear CR guide shafts in parallel to the print surface and to secure the predetermined clearance from the print surface in the PG 0 position. Place the exclusive adjustment gauges (one set of left and right gauges) in the specified positions on the Paper guide, connect the Tester, adjustment gauges and Head grounding plate or Mechanical frame with Alligator clip cables, and check contact of the Head and adjustment gauges by Tester continuity. To make adjustment, vary the Adjust parallelism bush fixing positions of the printer CR main shaft/sub shaft. Exclusive servicing program Exclusive servicing program Exclusive servicing program • Exclusive servicing program • Exclusive PG adjustment gauges • Printer parallelism adjustment lever Used Media Non-target Non-target Non-target Non-target ADJUSTMENT Adjustment Items and Overview 188