- the printer powered off but connected to a power source, press the Power button while pressing and holding
the Stop/ Reset button.
- When the Power is lit, press the Stop/Reset button two times while pressing and holding the Power button.
- When releasing the Power button and the Stop / Reset button (regardless of order), the printer will move into a
service mode. (Waiting for menu selection)
- When the on/off lights in green, press the Stop/Reset button the specified number of time(s) according to the
function listed in the table below.(Each time the Stop/Reset button is pressed, the LED lights alternately in
orange and green, starting with orange.)note: press 4 times for waste ink counter reset.
The number of the Reset button pressing
LED Function Remarks
0 time Green Power off
1 time Orange Service pattern print
2 times Green EEPROM print
3 times Orange EEPROM reset
4 times Green Waste ink counter reset
regards
Resetting Ink Counter Level on Canon Pixma iP1600
HP Laserjet Error Codes 13.14
For Laserjet 5si. This error is caused by a defective paper control PCA
Replace paper control PCA.
13.10 PAPER JAM CHECK DUPLEXER
1. Check the duplexer and the rear area of the printer for obstructions or damage. 2. Check the duplexer for proper operation. Replace the duplexer if a sensor is defective.
Continue reading..
HP Laserjet 4100 series service mode
1 While turning on the printer, hold down SELECT and CANCEL JOB until all of the lights on the control panel are lit.
2 Press the right side of the MENU key, then press SELECT. The message SERVICE MODE temporarily appears and will reappear when the printer completes the initialization process.
3. Press [Menus] once to display SERVICE MENU.
4. Once it says SERVICE MENU press ITEM to scroll through service mode items.
5. To exit the service mode, press GO.
Note: If READY appears in the control panel, the keys might have been released too soon, or the wrong keys were pressed.
HP Laserjet 4000 and 4050 series service mode
HP Laserjet 4000 and 4050 series service mode
1 Hold down [Select] and [Cancel Job] while turning on the printer until all of the lights on the Control Panel are lit. (If the Control Panel reads INITIALIZING, the keys were released too soon.)
2 Press the right side of the [Menu] key, then press [Select]. The message SERVICE MODE is displayed.
3. Press [Menus] once to display SERVICE MENU.
4. Once it says SERVICE MENU press ITEM to scroll through service mode items.
5. To exit the Service Mode press [Go].