REV.-A
2.1.2 Carriage Movement Mechanism
A timing belt is connected to the carriage on its lower side. With the printhead installed, this carriage
moves in either direction along the carriage guide shaft. The carriage is driven by the carriage motor,
a stepping motor that drives the timing belt via the belt drive pulley. The home-position sensor detects
when the carriage is in the home position.
Carriage Guide Sha
Figure
2-2. Carriage Movement
The paper-thickness adjustment lever allows the printer to use paper of different weights (or
thicknesses). The user can change the platen gap on the carriage guide shaft by moving this lever.
Changing the position of the lever turns the carriage guide shaft and moves the carriage either toward
or away from the platen. Moving the paper-thickness adjustment lever to the fourth position or higher
slows the printing speed to protect the printhead. The PG sensor reads the current position of the
paper-thickness adjustment lever.
Shaft
PG
Figure 2-3. Moving the Paper-Thickness Adjustment Lever
2-2
Содержание LQ-1170
Страница 1: ...LQ 1170 24 PIN DOT MATRIX PRINTERS TM LQ8 1170 ...
Страница 2: ...L Q 8 7 0 1 1 7 0 SERVICE MANUAL EPSON T Printed on recycled paper ...
Страница 6: ...Revision Level Revision Date I 1st printing I 7 23 91 I I ViSC d I 10 g 91 I 1 2ndprhting I 3 17 92 I ...
Страница 20: ...REV A Table 1 9 Printing Bit Image Mode 80 136 Column dpi dots per inch ips inches per second 1 11 ...
Страница 101: ...10 9 91 Yes NO Replace pluggable chips on main board 5 6 ...
Страница 110: ...Table 5 4 Repair of the Power Supply Board Continued 5 15 ...
Страница 118: ......
Страница 121: ...REV A Figure 6 2 LQ 870 Lubrication Points 6 3 ...
Страница 122: ...REV A Figure 6 3 LQ 1170 Lubrication Points 6 4 ...
Страница 134: ...1 I II ...
Страница 135: ...REV A Q m u D w IL 0 1 xl Figure A 3 CO60 DRV Board Circuit Diagram A 11 ...
Страница 136: ...Figure A 4 CO60 PSB Board Circuit Diagram A 12 ...
Страница 138: ...LO SLOE002 OWO9 1Nd 0 9 0 3 5 f l P I 11 I 01 I 6 I 8 1 L 9 I 9 I B I I2 I 2 I 1 ...
Страница 141: ...REV A s XL r t RI FI IZSV SA 0 l Dl I N 0 I I D E C6 I I U J Figure A 9 CO60 PSB Board Component Layout A 1 7 ...
Страница 142: ...REV A Fl 24ov T3 IsA I I II II AL I CU rl Figure A 10 C060 PSE Board Component Layout A 1 8 ...
Страница 143: ...LMS d10 IP IMS dla ...
Страница 144: ...REV A A 4 EXPLODED DIAGRAM Figure A l 2 1 Exploded Diagram for LQ 870 A 2 0 ...
Страница 145: ......
Страница 146: ...REV A Figure A 13 1 Exploded Diagram for Model 5DlO A 22 ...
Страница 147: ... 5 2 5 610 c 3 5 9 0 El ...
Страница 149: ...REV A A 5 CASE OUTLINE DRAWING Figure A l 4 1 Case Outline Drawing for LQ 870 A 25 ...
Страница 150: ...REV A 7 _ I i I 11111 j I I g I I II I I Figure A l 4 2 Case Outline Drawing for LQ 1170 A 2 6 ...
Страница 151: ...lllllll IllI l l IIIIII II0 IIll III1 I I I C O 6 1 M A I N B o a r d A 3 7 ...
Страница 152: ... U nRonenl2 i i C O 6 0 HAIN B t _1 m r OL J IIA IS I 19 CNI 36 I I8 I 23 IS ...
Страница 153: ...a i iJ 0 E fig tfti I z ...