XYAA6336 Service Manual 1-11. OVERVIEW1.1 INTRODUCTIONThe PR4 is a three-station impact printer, the PR4 SRa two-station impact printer, specifically designed forthe POS retail environment. It can print on forms,cheques, receipts and journal rolls with a print pitchranging from 12 cpi to 17.1 cpi.The receipts are cut by a CUTTER while the journalroll comes with a JOURNAL REWINDER.The forms to be printed are automatically alignedonce inserted through the front insertion slot.Paper rolls with different widths can be used: 76.2 mm,82.5 mm, 114.3 mm and 139.7 mm.The codes on cheques can be read by means of theoptional MICR device, while it is possible to print onthe back of the cheques.The printer is equipped with a client display SUPPORT.An optional electronic board manages the banknotedrawer and client display, both of which controlleddirectly by the printer electronics.The printer is compatible with the OLIVETTI STDPOS and EPSON ESC POS EMULATIONS.