Radio Shack TRS-80 Manual Download Page 14

Summary of Contents for TRS-80

Page 1: ...Li II i Le f Pri ntei MlCRO i COMPUTER Catalog Number 26 1166 rtiRThiv i mami icapti ippn cnp nAnin QHAf K as a nivismN OP TANDY r nRPnRATIDN...

Page 2: ...or 15 characters per inch Up to 132 characters per line Software selectable line densities 6 8 or 12 lines per inch Selectable friction feed or tractor feed for advancing printer paper Accepts paper w...

Page 3: ...left and right sides to the cassette holder by stop per claws Lift up the platen end slightly and remove by lifting up the entire cassette horizontally 4 Tension the ribbon in new cassette by turning...

Page 4: ...e tractor cover at left and right sides with both hands unlock by pulling up the rear part and pull upward 3 Install upper plastic cover 4 Set Power switch to ON position set to operating condition To...

Page 5: ...Return paper bail to its position against paper and platen 9 Adjust Penetration Control for optimum print quality as follows Mo Control Lever completely toward the platen This provides maximum print h...

Page 6: ...Sprocket Unit Tractor Unit Figure 6 Release Lever Paper Feed Knob Tractor Unit Paper Tray Forms Figure 7 Paper Tray Figure 8...

Page 7: ...ugh bottom paper insertion opening and push the paper up until it appears between the platen and paper scale 8 Pull paper out about 6 15 cm 9 Raise tractor paper holders and lay the paper over feed sp...

Page 8: ...sition by loosening screws on both sprocket units 6 If printing is too light move Penetration Control lever toward the platen If printing is too dark or is smudged move Penetration Control lever backw...

Page 9: ...is pressed twice If ERROR is detected due to carriage striking on left or right end clogged paper or other causes Return Printer to initial state by pressing RESET switch you should realize that unde...

Page 10: ...Interchange ASCII there are 34 control codes in addition to the printable character codes Control codes are sent as data which the receiving device in terprets as abbreviated instructions communicati...

Page 11: ...38 1 8 L Select 8 Lines inch mode When this two code sequence is received successively all sub sequent line spacing will be 8 lines per inch 30 036 1E NOR Cancels elongated character command Printer i...

Page 12: ...r 49 31 61 1 81 51 121 Q 113 71 161 q 177 B1 261 A 241 F1 361 50 32 62 2 82 52 122 R 114 72 162 r 178 B2 262 242 F2 362 n 51 33 63 3 83 53 123 S 115 73 163 s 179 B3 263 243 F3 363 r 52 34 64 4 84 54...

Page 13: ...riage will return to beginning of the line before printing the condensed characters which follow Without special care in programming insertion of a CON STR command in the middle of a line will cause o...

Page 14: ...rinter into a 3 wire grounded receptacle 2 Ensure that upper cover is closed and secured while in operation 3 Never operate printer without paper If paper used is less than 15 wide take care to see th...

Page 15: ...on material or paper lint carefully remove such ma terial with a finely pointed tool needles etc This should be checked regularly Lightly oil the two carriage guides every three months Use high grade...

Page 16: ...nd apply high grade Ester Lubricant Compound or high grade sewing machine oil Is ribbon cassette properly set Has ribbon come off from Print head ribbon guide and is loose Is ribbon so worn so that it...

Page 17: ...Friction or Tractor Interface 8 bit data 4 bit status parallel Expansion interface 26 1 140 n u ift Mii for TRS 80 Model I Printer interface cable 26 1411 Printer interface cable 26 4401 for TRS 80 Mo...

Page 18: ...SCHEMATIC DIAGRAMS g o z I s 2 br r r m m a b Bffii R R fflffi W 5 U JL U ft u Q Z 3 3 O 3 K Z I 1 2 tt tu OS u 1 I O WW fc 1...

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Page 20: ...to replace or repair items which by their nature are expendable No representation or other affir mation of fact including but not limited to statements regarding capacity suitability for use or perfor...

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