HP LaserJet 4250 Service Manual - Page 101
Resetting the maintenance-kit counter (LJ 4250/4350), Maintenance kit part numbers, 000MB - reset maintenance count
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Resetting the maintenance-kit counter (LJ 4250/4350) After a maintenance kit is installed, the maintenance-kit counter must be reset by using the following procedure. 1 Turn the printer off and then on. 2 When 000MB (the beginning of the memory-count) appears on the control-panel display, press and hold down (SELECT button). Continue holding down until all three printer control panel lights flash once, and then stay on. This might take up to 10 seconds. 3 Release and press (UP ARROW button) to scroll to NEW MAINTENANCE KIT. 4 Press to reset the maintenance-kit counter. NOTE Perform this procedure only after a maintenance kit has been installed. Do not use this procedure to temporarily clear the PERFORM PRINTER MAINTENANCE message. Maintenance kit part numbers Table 4-2 Maintenance kit part numbers Part name 110 V maintenance kit (LJ 4200/4200L) 110 V maintenance kit (LJ 4300) 110 V maintenance kit (LJ 4250/4350) 220 V maintenance kit (LJ 4200/4200L) 220 V maintenance kit (LJ 4300) 220 V maintenance kit (LJ 4250/4350) Part number Q2429-67904 Q2436-67905 Q5421-67901 Q2430-67904 Q2437-67905 Q5422-67901 Description The maintenance kit contains user-replaceable parts and instructions for printer maintenance. The printer maintenance kit components are consumable items. (Typically, the associated components are not covered under the original warranty or most extended-warranty options.) Performing preventive maintenance 87