Epson R200 Service Manual - Page 73

EPSON Stylus Photo R200/R210 Revision A 3.1 Adjustment Items and Overview This chapter describes adjustments to be made after the disassembly/reassembly of this product. 3.1.1 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. Adjustment items Function Item Market Setting USB ID Input Head ID Input Head Angular Adjustment Bi-D Adjustment PW Sensor Adjustment Table 3-1. Adjustment Items Purpose Method Outline 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), First Dot Adjustment fixed value. This adjustment is made to allow the PC to recognize the connected printers individually when multiple printers of the same model are connected and used with the PC via a USB hub. Select this function in the exclusive servicing program and enter the serial numbers of the printers. The correction value is saved to the specific EEPROM address on the Main Board. At the time of Print 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 Print Head 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.) This adjustment is made to correct the error in the Print Head mounting position (angle of the Print Head to the paper surface) to keep the nozzle intervals uniform in the CR main scanning direction. Select this function in the exclusive servicing program and print the adjustment pattern. Check the displacement amount of the pattern. Print the exclusive pattern again and adjust the displacement amount. This adjustment is made to correct the print timing in the go and return paths in bi-directional printing. (This printer carries out printing with PG (typ.) and PG (-)) Select this function in the exclusive servicing program and print the adjustment patterns to check the displacement amounts of the patterns. Select/enter the pattern number that has the smallest displacement amount in the program. Print the exclusive patterns again and adjust the displacement amount. The correction value is saved into the EEPROM. This adjustment is made to correct the mounting position of the PW Sensor on a software basis to minimize the paper detection error caused by the variations of the mounting position. Select this function in the exclusive servicing program and print the adjustment patterns. Select the pattern number 5mm away from each edge, and enter that number in the program. The correction value is saved to the specific EEPROM address on the Main Board. Tool Exclusive servicing program Exclusive servicing program Exclusive servicing program Exclusive servicing program Exclusive servicing program Exclusive servicing program Used Media Non-target Non-target Non-target Photo Quality Ink Jet Paper (A4) Plain paper (A4) Photo Paper / Glossy Photo Paper (A4) ADJUSTMENT Adjustment Items and Overview 73