Troubleshooting Procedure Table lists the troubleshooting tools contained in the printer. The potential at point becomes higher than that at point a , and the energy accumulated in C 11 is released to keep Ib flowing to Q1. A standard front push tractor and straight paper path load up to 6-part forms with zero tear-off for zero waste, zero skewing and zero jams. Ribbon Feed Mechanism Figure For additional information, see the Global Shipping Program terms and conditions – opens in a new window or tab.

Uploader: Malajin
Date Added: 11 March 2015
File Size: 21.93 Mb
Operating Systems: Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads: 83122
Price: Free* [*Free Regsitration Required]

Therefore, voltage V 1jn across coil T Surge Voltage Absorbing Circuit When a phase driver changes from on to off, a surge voltage is induced due to reactance in the motor coil. Platen Gap [mm] 0.

Remove the nut HNO M4 securing the side frame support to the left frame. Remove the platen paper guide by turning it toward you.

The main optional interfaces are listed in Table If the paper runs out, the PE sensor detects it Refer to Figures and 5. Path of Sensor Lead Wires Figure Refer to Table A in Appendix for details.

12 NEW Compatible Dot Matrix Black Ribbons for Epson LQ LQ LQ L | eBay

Light is not reflected. See Figure 0. Name 73 14 Pull tractor unit Double bin cut sheet feeder Scanner option kit Ribbon cartridge black Ribbon cartridge color Ribbon cartridge film-black f Table Case Open Sensor Circuit Figure The printhead has 24 wires arranged in two staggered lines 12 wires for each line. This circuit is employed to protect main switching circuit 2 from being damaged ,q the voltage regulator circuit operates abnormally. Remove the three screws CPS M3X8 securing the paper thickness sensor assembly at the back of the printer.


Differences in thickness within printing area must be less than 0.

Epson LQ 2250

But the paper feed accuracy can not be assured in the area approx. Remove the E-ring RE 8 from the platen shaft at the left frame side. Surge current that flows when the printer power is first turned on is suppressed by the 22250 suppression circuit. A condensed mode for 15 CPI characters is not available.

Connector Descriptions Table Printing Mechanism Figure shows the printing mechanism. When the power supply for the control circuits starts operating normally, voltage is induced in the epsob side of transformer T2. VR 1 is used for bidirectional printing in the LQ mode, and VR2 is used for bidirectional printing in the draft mode. The values are for when CN2 is disconnected.

The adjusted position is stored in the memory and remains effective at the next tear-off even if the power is turned off and on. At this time, make sure that the platen gap gear does not move. Move the carriage to the left. If single sheet paper is loaded, the paper is ejected forward and the fanfold paper is loaded.


Figure and Table show this diagnostic system.

Bind the three cables together and fold them. The platen gap detected by the PW sensor is converted into voltage Vs.

Tally / Matrix Printer

The main and sub CPUs communicate with each other using serial ports. Search the history of over pq web pages on the Internet. If the control panel is set, a total of 10 steps of fine adjustment can be manually performed on the platen gap value with 0.