Printer will not become ready.

drive it. I am betting you have recently "cleared" codes which also clears readiness monitors in an attempt to better control people cheating the system. After enough drive cycles are reached the monitors will pass if nothing is wrong and turn to ready. If the problem that the codes implicated where not fixed than the check engine light will again come back on and you will again fail your attempt to pass emissions.

Drive it for a week or so and see what happens.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Have you recently tried adding to or replacing the internal rem modules? If not they could have developed a fault. Try removing the and rebooting the printer see if that resolves the issue. I have also see this happen with a faulty daughter board which the ram plugs in to on a hp printer

Try reset your printer by following this procedure to reset it,

1. Without turning the unit off, unplug the power cord from the back of the product.
2. Press and hold # and 6 keys.
3. While holding those keys plug the power cord back in.
4. Wait until the screen goes blank before you release those keys.
5. Follow on printer screen instructions.

Or

. Turn the printer power off.
2. Press and hold GO.
3. Turn the printer power back on and continue to hold GO until the Attention light turns on.
4. Release GO.
5. The device lights will begin cycling from front to rear. The cold-reset process will run until completion and the device will go to the ready state. This should fix the problem.

Error 5c00 is classified as a purge unit error. The purge unit is a device in the printer that refreshes and cleans the ink cartridges. This error message occurs when the printer's purge unit is not able to complete its cycle fully.

Several issues can prevent the purge unit from cycling completely. Paper or debris may be caught in the purge unit or it may have become stuck out of place.

How to fix it:
1) Turn the printer on and open the cover.
2) When the carriage has moved to the center of the printer, disconnect the power by removing the power plug from the back.
3) You should now be able to slide the carriage gently to the left, which will give you access to the purge unit located on the right side of the printer.
4) Inspect the unit for any jammed debris or stuck pieces. Using a paper towel, gently move any jammed pieces back into place.

1. Turn off the printer ( "Power" button).
2. Open printer cover and hold the button "Resume" (red circle in the triangle) and push and hold Power button.
3. Release button "Resume" and then push button "Resume" 2 times and release both buttons.
4. When printer become ready on the display write "CANON Idle".
5. Now close printer cover and push button "Resume" 4 times.
6. Then push "Power" button 3 times to turn off printer.
All done. The printer is ready to print.

1. Turn off the printer ( "Power" button).
2. Hold the button "Resume" (red circle in the triangle) and push "Power" button.
3. When printer become ready hold the button "Power" and release button "Resume".
4. Push button "Resume" 2 times and then hold "Resume" and release "Power" button.
5. When I hold button "Resume" I push and hold "Power" button and release "Resume".
6. When I hold "Power" button, push button "Resume" 2 times and release both buttons.
7. When printer become ready on the display write "CANON Idle".
8. Push button "Resume" 4 times.
9. Then push "Power" button 3 times to turn off printer.
All done. The printer is ready to print.

E100 The BD interval is outside a specific range.

0001 After the machine has become ready for image
formation (i.e., the scanner motor is ready for
operation, and the laser has been turned on), an
error has occurred 50 times or more (BD error).

Replace the laser unit. Replace the DC controller
PCB. Check the wiring.

Before replacing pcbs try to clean and reconnect laser unit, and replace drum unit.

1) With the printer On, make sure you have new cartridges installed ready to initialize. Replace as necessary.
2) Press and hold the <OK> and <Cancel> [or <X> if you do not have Cancel] buttons down at the same time and turn the printer off with the power button.
3) Keep holding the buttons down until the printer turns off.
4) While pressing the <OK> and <Cancel> buttons, turn the unit back on. It should cycle a bit then turn itself off again.
6) Press the <Power> button to turn the printer back On.
7) The printer will reinitialize the ink cartridges. Do not disturb this process. After completion (approx. 5 minutes), it should be ready to print.

With the power off press and hold the cartridge cleaning button and the paper feed button. While holding the 2 buttons turn the power on. When the light for paper feed begins to flash let go of the buttons and immediately press and hold the cartridge cleaning button for at least 10 seconds. The unit will cycle then go to ready. The problem is that the counter for the waste ink cleaning pad has reached the limit.