Service Manual
Page 30
... (3 beeps) * **•" (sbeepswi~ a w= ~tween each beep) ~? ~ - ** q * - ** ** (B *S of z beeps) *** (4 beeps) A short circuited printhead is detected. (The head driver FETs are bad.) A short circuited printhead fan is detected. A platen gap adjust error is used , the head parks away from the binding during paper feeding... print buffer and input data buffer. Clears download characters (CG ROM copy in ready mode, so it is enabled, throughput is reducwl. 1.4.14 Printer Initialization The printer is initialized in the following : ~ Printer initializ.ation Li ESC/P software reset command ...
... (3 beeps) * **•" (sbeepswi~ a w= ~tween each beep) ~? ~ - ** q * - ** ** (B *S of z beeps) *** (4 beeps) A short circuited printhead is detected. (The head driver FETs are bad.) A short circuited printhead fan is detected. A platen gap adjust error is used , the head parks away from the binding during paper feeding... print buffer and input data buffer. Clears download characters (CG ROM copy in ready mode, so it is enabled, throughput is reducwl. 1.4.14 Printer Initialization The printer is initialized in the following : ~ Printer initializ.ation Li ESC/P software reset command ...
Service Manual
Page 59
...stored in the line buffer in units of one line of expanded data is output to the input buffer in the download CG). A row of data. 6. the printer performs steps 6 through 8 twice. The CPU is printed, the CPU executes paper feeding. Drives the RF motor ...E05A87 features are: Q CS (Chip Select) signal creation D Address decoding Q Address latching Cl Clock pulse creation (divided from the CPU clock) Q Printhead driver control D CR motor driver control LI CR and PG motor pulse encoder l/O (input/output) Q Encoder pulse 1/0 Q Phase signal creation for the motors Q i/O port control Q Interface...
...stored in the line buffer in units of one line of expanded data is output to the input buffer in the download CG). A row of data. 6. the printer performs steps 6 through 8 twice. The CPU is printed, the CPU executes paper feeding. Drives the RF motor ...E05A87 features are: Q CS (Chip Select) signal creation D Address decoding Q Address latching Cl Clock pulse creation (divided from the CPU clock) Q Printhead driver control D CR motor driver control LI CR and PG motor pulse encoder l/O (input/output) Q Encoder pulse 1/0 Q Phase signal creation for the motors Q i/O port control Q Interface...