Epson R260 Service Manual - Page 121
PG Adjustment, 4.4 Removing the Printer Mechanism
UPC - 010343859043
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EPSON Stylus Photo R260/R265/R270, R360/R380/R390 5.2.6 PG Adjustment Described below is the platen gap (PG) adjustment. Purpose: Adjust the distance between the head surface and the Paper Guide Front Assy (platen) properly and adjust the parallelism on the 0th column side and on the 80th columns side to ensure reliable print quality. Once the Carriage Assy and/or Adjustment Bushes have been removed or whenever necessary for any other reason, make this adjustment to correct the deviation of the platen gap. Position PG PG typ. PG+ PG++ Table 5-5. PG Positions PG Size (mm) Application for Printing (selected from PG flag list for normal/head rubbing) Sequence Application 1.2 EPSON special thick paper PGPP, Postcards, Matte, etc. Cleaning CR measurement, VH detection CR home position seek Plain paper 1.7 EPSON special thin paper, SF, etc. Rubbing with PG1.2 is avoided Envelopes 2.35 Rubbing with PG1.2 and 1.7 is avoided 4.2 CD-R printing At ink replacement Things to be used Thickness gauge: 1.15 mm (x2) 1.3 mm (x2) Phillips screwdriver Revision B C A U T IO N CHECK P O IN T The thickness gauge to be used must be free from dust and dirt and from deformation. Be sure to clean it before use. Take care that the Print Head is not soiled or scratched. To ensure high accuracy of adjustment, install new ink cartridges in the carriage, and move the carriage right and left by pulling the belt without holding the carriage. Make this adjustment after installing the mechanism unit in the Housing Lower. (Install the Linear Scale after adjustment.) Refer to "4.4 Removing the Printer Mechanism" (p.87) With EPSON Stylus Photo R260/R265/R270, R360/R380/R390, four stages of PG setting are available by means of the APG Mechanism. However, make this adjustment with the mechanism in the minimum PG position (PG-: 1.2 mm). (Refer to "4.5.2 APG Unit" (p.90) and below.) Locating hole Locating hole Figure 5-8. PG Position at PG Adjustment Adjustment Adjustment by Using Adjustment Program 122