HP Color LaserJet Enterprise CP4020 Service Manual - Page 379
Control-panel messages continued, 5 UNEXPECTED TYPE IN TRAY <X>
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Table 3-14 Control-panel messages (continued) Description Recommended action 22 EMBEDDED I/O BUFFER OVERFLOW To continue press OK Too much data was sent to the embedded HP Jetdirect print server. Press the OK button to print the transferred data. (Some data might be lost.) Check the host configuration. 22 PARALLEL I/O BUFFER OVERFLOW To continue press OK The product's parallel buffer has overflowed. Press the OK button to print the transferred data. (Some data might be lost.) Check the host configuration. 22 PARALLEL SERIAL BUFFER OVERFLOW The product's serial buffer has overflowed. Press the OK button to print the transferred data. (Some data might be lost.) To continue press OK Check the host configuration. 22 USB I/O BUFFER OVERFLOW To continue press OK The product's USB buffer has overflowed. Press the OK button to print the transferred data. (Some data might be lost.) Check the host configuration. 40 EIO X BAD TRANSMISSION To continue press OK The connection between the product and the EIO card in the specified slot has been broken. Press the OK button to clear the error message and continue printing. Try to reinstall the EIO card. 40 EMBEDDED I/O BAD TRANSMISSION A temporary printing error has occurred. To continue press OK Press the OK button to clear the error message. (Data will be lost.) 41.3 UNEXPECTED SIZE IN TRAY LOAD TRAY [TYPE] [SIZE] To use another tray press OK This message appears even though the tray 1. is loaded with the correct paper size. Run the sensor test in the sensor monitor mode to verify that the cassette media size switch is functioning properly. 2. Reconnect the cassette media size switch intermediate connector J57, and connector J107 on the DC controller PCA. 3. Replace the lifter assembly. 41.5 UNEXPECTED TYPE IN TRAY LOAD TRAY [TYPE] [SIZE] To use another tray press OK This message appears even though the tray 1. is loaded with the correct paper size. Reconnect the media sensor intermediate connector J77, and connector J131 on the DC controller PCA. 2. Replace the registration assembly. 41.7 ERROR To continue press OK 48.01 TRANSFER UNIT ERROR Printer error ● X = 2; beam detected misprint ● X = 7; media transport error The transfer belt has dislocated during printing. Turn the product off, and then on. Turn product off then on. If the message persists, remove and reinstall the transfer unit. ENWW Tools for troubleshooting 347